/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_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:42:41,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:42:41,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:42:41,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:42:41,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:42:41,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:42:41,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:42:41,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:42:41,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:42:41,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:42:41,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:42:41,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:42:41,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:42:41,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:42:41,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:42:41,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:42:41,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:42:41,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:42:41,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:42:41,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:42:41,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:42:41,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:42:41,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:42:41,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:42:41,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:42:41,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:42:41,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:42:41,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:42:41,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:42:41,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:42:41,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:42:41,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:42:41,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:42:41,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:42:41,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:42:41,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:42:41,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:42:41,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:42:41,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:42:41,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:42:41,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:42:41,539 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 23:42:41,554 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:42:41,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:42:41,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:42:41,557 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:42:41,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:42:41,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:42:41,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:42:41,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:42:41,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:42:41,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:42:41,558 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:42:41,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:42:41,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:42:41,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:42:41,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:42:41,559 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:42:41,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:42:41,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:42:41,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:42:41,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:42:41,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:42:41,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:42:41,562 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:42:41,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:42:42,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:42:42,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:42:42,041 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:42:42,042 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:42:42,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-10-23 23:42:42,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/954d331ab/2f1c266b9c9c45249ded4f7fe1ac4ee6/FLAGf481d27c7 [2020-10-23 23:42:42,785 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:42:42,786 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-10-23 23:42:42,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/954d331ab/2f1c266b9c9c45249ded4f7fe1ac4ee6/FLAGf481d27c7 [2020-10-23 23:42:43,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/954d331ab/2f1c266b9c9c45249ded4f7fe1ac4ee6 [2020-10-23 23:42:43,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:42:43,126 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:42:43,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:42:43,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:42:43,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:42:43,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:42:43" (1/1) ... [2020-10-23 23:42:43,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c5a75d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:43, skipping insertion in model container [2020-10-23 23:42:43,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:42:43" (1/1) ... [2020-10-23 23:42:43,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:42:43,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:42:43,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:42:43,582 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:42:43,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:42:43,730 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:42:43,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:43 WrapperNode [2020-10-23 23:42:43,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:42:43,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:42:43,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:42:43,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:42:43,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:43" (1/1) ... [2020-10-23 23:42:43,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:43" (1/1) ... [2020-10-23 23:42:43,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:43" (1/1) ... [2020-10-23 23:42:43,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:43" (1/1) ... [2020-10-23 23:42:43,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:43" (1/1) ... [2020-10-23 23:42:43,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:43" (1/1) ... [2020-10-23 23:42:43,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:43" (1/1) ... [2020-10-23 23:42:43,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:42:43,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:42:43,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:42:43,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:42:43,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:43" (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 23:42:43,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:42:43,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:42:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:42:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:42:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:42:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:42:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:42:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:42:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:42:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:42:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:42:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:42:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:42:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:42:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:42:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:42:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:42:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:42:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:42:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 23:42:43,942 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:42:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:42:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:42:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:42:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:42:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:42:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:42:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:42:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:42:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:42:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-23 23:42:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:42:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:42:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:42:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:42:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:42:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:42:43,945 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 23:42:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:42:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:42:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:42:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:42:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:42:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:42:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:42:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:42:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:42:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:42:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:42:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:42:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:42:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:42:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:42:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:42:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:42:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:42:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:42:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:42:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:42:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:42:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:42:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:42:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:42:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 23:42:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:42:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:42:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:42:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:42:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:42:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-23 23:42:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:42:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:42:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 23:42:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:42:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:42:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:42:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:42:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:42:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:42:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:42:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:42:43,952 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:42:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:42:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:42:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:42:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:42:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:42:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:42:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:42:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:42:45,062 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:42:45,062 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:42:45,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:42:45 BoogieIcfgContainer [2020-10-23 23:42:45,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:42:45,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:42:45,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:42:45,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:42:45,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:42:43" (1/3) ... [2020-10-23 23:42:45,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683092a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:42:45, skipping insertion in model container [2020-10-23 23:42:45,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:42:43" (2/3) ... [2020-10-23 23:42:45,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683092a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:42:45, skipping insertion in model container [2020-10-23 23:42:45,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:42:45" (3/3) ... [2020-10-23 23:42:45,075 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2020-10-23 23:42:45,087 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:42:45,093 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:42:45,107 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:42:45,132 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:42:45,132 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:42:45,132 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:42:45,132 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:42:45,133 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:42:45,133 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:42:45,133 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:42:45,133 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:42:45,156 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-10-23 23:42:45,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 23:42:45,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:42:45,178 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 23:42:45,179 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 23:42:45,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:42:45,185 INFO L82 PathProgramCache]: Analyzing trace with hash 818889816, now seen corresponding path program 1 times [2020-10-23 23:42:45,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:42:45,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221422926] [2020-10-23 23:42:45,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:42:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:45,962 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:42:45,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:42:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:46,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:42:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:46,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:42:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:46,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:42:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:46,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:42:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:46,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:42:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:46,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:42:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:46,162 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 23:42:46,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [221422926] [2020-10-23 23:42:46,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:42:46,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:42:46,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611359917] [2020-10-23 23:42:46,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:42:46,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:42:46,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:42:46,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:42:46,188 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2020-10-23 23:42:47,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:42:47,640 INFO L93 Difference]: Finished difference Result 429 states and 512 transitions. [2020-10-23 23:42:47,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:42:47,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 23:42:47,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:42:47,660 INFO L225 Difference]: With dead ends: 429 [2020-10-23 23:42:47,660 INFO L226 Difference]: Without dead ends: 272 [2020-10-23 23:42:47,665 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 23:42:47,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-10-23 23:42:47,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 233. [2020-10-23 23:42:47,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-23 23:42:47,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 251 transitions. [2020-10-23 23:42:47,841 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 251 transitions. Word has length 148 [2020-10-23 23:42:47,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:42:47,842 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 251 transitions. [2020-10-23 23:42:47,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:42:47,843 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 251 transitions. [2020-10-23 23:42:47,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 23:42:47,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:42:47,848 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 23:42:47,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:42:47,848 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 23:42:47,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:42:47,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1991934585, now seen corresponding path program 1 times [2020-10-23 23:42:47,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:42:47,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746906632] [2020-10-23 23:42:47,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:42:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:48,370 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:42:48,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:42:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:48,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:42:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:48,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:42:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:48,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:42:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:48,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:42:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:48,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:42:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:48,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:42:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:48,463 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 23:42:48,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746906632] [2020-10-23 23:42:48,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:42:48,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:42:48,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28671905] [2020-10-23 23:42:48,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:42:48,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:42:48,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:42:48,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:42:48,467 INFO L87 Difference]: Start difference. First operand 233 states and 251 transitions. Second operand 4 states. [2020-10-23 23:42:49,265 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:42:50,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:42:50,146 INFO L93 Difference]: Finished difference Result 343 states and 383 transitions. [2020-10-23 23:42:50,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:42:50,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 23:42:50,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:42:50,152 INFO L225 Difference]: With dead ends: 343 [2020-10-23 23:42:50,152 INFO L226 Difference]: Without dead ends: 255 [2020-10-23 23:42:50,158 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 23:42:50,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-23 23:42:50,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 223. [2020-10-23 23:42:50,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-10-23 23:42:50,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 238 transitions. [2020-10-23 23:42:50,305 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 238 transitions. Word has length 149 [2020-10-23 23:42:50,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:42:50,306 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 238 transitions. [2020-10-23 23:42:50,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:42:50,306 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 238 transitions. [2020-10-23 23:42:50,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 23:42:50,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:42:50,310 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] [2020-10-23 23:42:50,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:42:50,310 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 23:42:50,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:42:50,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1134896611, now seen corresponding path program 1 times [2020-10-23 23:42:50,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:42:50,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873036805] [2020-10-23 23:42:50,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:42:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:50,786 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:42:50,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:42:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:50,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:42:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:50,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:42:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:50,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:42:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:50,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:42:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:50,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:42:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:50,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 23:42:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:50,997 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 23:42:50,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873036805] [2020-10-23 23:42:50,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:42:50,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:42:50,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551519599] [2020-10-23 23:42:50,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:42:50,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:42:51,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:42:51,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:42:51,001 INFO L87 Difference]: Start difference. First operand 223 states and 238 transitions. Second operand 9 states. [2020-10-23 23:42:51,713 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:42:52,179 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:42:52,565 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:42:52,964 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:42:53,334 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:42:53,728 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:42:55,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:42:55,203 INFO L93 Difference]: Finished difference Result 363 states and 408 transitions. [2020-10-23 23:42:55,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 23:42:55,204 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 23:42:55,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:42:55,211 INFO L225 Difference]: With dead ends: 363 [2020-10-23 23:42:55,211 INFO L226 Difference]: Without dead ends: 255 [2020-10-23 23:42:55,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-23 23:42:55,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-23 23:42:55,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 223. [2020-10-23 23:42:55,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-10-23 23:42:55,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 237 transitions. [2020-10-23 23:42:55,309 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 237 transitions. Word has length 158 [2020-10-23 23:42:55,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:42:55,309 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 237 transitions. [2020-10-23 23:42:55,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:42:55,310 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 237 transitions. [2020-10-23 23:42:55,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 23:42:55,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:42:55,313 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] [2020-10-23 23:42:55,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:42:55,313 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 23:42:55,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:42:55,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1411314036, now seen corresponding path program 1 times [2020-10-23 23:42:55,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:42:55,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801375255] [2020-10-23 23:42:55,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:42:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:55,729 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:42:55,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:42:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:55,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:42:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:55,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:42:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:55,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:42:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:55,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:42:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:55,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 23:42:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:55,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:42:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:55,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 23:42:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:55,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 23:42:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:55,867 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 23:42:55,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801375255] [2020-10-23 23:42:55,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:42:55,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 23:42:55,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560217535] [2020-10-23 23:42:55,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 23:42:55,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:42:55,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 23:42:55,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 23:42:55,872 INFO L87 Difference]: Start difference. First operand 223 states and 237 transitions. Second operand 6 states. [2020-10-23 23:42:56,499 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:42:58,225 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:42:58,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:42:58,841 INFO L93 Difference]: Finished difference Result 487 states and 553 transitions. [2020-10-23 23:42:58,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 23:42:58,842 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-10-23 23:42:58,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:42:58,847 INFO L225 Difference]: With dead ends: 487 [2020-10-23 23:42:58,848 INFO L226 Difference]: Without dead ends: 379 [2020-10-23 23:42:58,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:42:58,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-10-23 23:42:58,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 318. [2020-10-23 23:42:58,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-23 23:42:58,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 342 transitions. [2020-10-23 23:42:58,971 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 342 transitions. Word has length 166 [2020-10-23 23:42:58,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:42:58,972 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 342 transitions. [2020-10-23 23:42:58,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 23:42:58,972 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 342 transitions. [2020-10-23 23:42:58,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-23 23:42:58,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:42:58,975 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] [2020-10-23 23:42:58,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:42:58,976 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 23:42:58,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:42:58,977 INFO L82 PathProgramCache]: Analyzing trace with hash 996135363, now seen corresponding path program 1 times [2020-10-23 23:42:58,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:42:58,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811280427] [2020-10-23 23:42:58,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:42:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:59,357 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:42:59,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:42:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:59,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:42:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:59,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:42:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:59,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:42:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:59,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:42:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:59,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 23:42:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:59,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:42:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:59,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:42:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:59,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:42:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:59,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-23 23:42:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:59,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 23:42:59,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:42:59,587 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 23:42:59,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811280427] [2020-10-23 23:42:59,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:42:59,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:42:59,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127620598] [2020-10-23 23:42:59,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:42:59,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:42:59,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:42:59,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:42:59,592 INFO L87 Difference]: Start difference. First operand 318 states and 342 transitions. Second operand 9 states. [2020-10-23 23:43:00,224 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:01,499 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:01,912 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:43:02,338 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:02,711 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:03,127 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:43:03,501 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:05,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:05,151 INFO L93 Difference]: Finished difference Result 768 states and 897 transitions. [2020-10-23 23:43:05,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 23:43:05,151 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-10-23 23:43:05,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:05,156 INFO L225 Difference]: With dead ends: 768 [2020-10-23 23:43:05,156 INFO L226 Difference]: Without dead ends: 565 [2020-10-23 23:43:05,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2020-10-23 23:43:05,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-23 23:43:05,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 487. [2020-10-23 23:43:05,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-10-23 23:43:05,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 536 transitions. [2020-10-23 23:43:05,403 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 536 transitions. Word has length 190 [2020-10-23 23:43:05,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:05,404 INFO L481 AbstractCegarLoop]: Abstraction has 487 states and 536 transitions. [2020-10-23 23:43:05,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:43:05,404 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 536 transitions. [2020-10-23 23:43:05,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-23 23:43:05,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:05,407 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] [2020-10-23 23:43:05,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:43:05,408 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 23:43:05,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:05,408 INFO L82 PathProgramCache]: Analyzing trace with hash 787786592, now seen corresponding path program 1 times [2020-10-23 23:43:05,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:05,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921454304] [2020-10-23 23:43:05,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:05,798 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:05,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:05,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:05,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:05,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:05,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:05,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 23:43:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:05,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:05,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:43:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:05,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:43:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:05,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-23 23:43:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:05,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 23:43:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:05,956 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 23:43:05,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921454304] [2020-10-23 23:43:05,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:05,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:43:05,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268323959] [2020-10-23 23:43:05,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:43:05,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:05,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:43:05,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:43:05,959 INFO L87 Difference]: Start difference. First operand 487 states and 536 transitions. Second operand 9 states. [2020-10-23 23:43:06,655 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:08,305 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:08,676 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:09,072 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:09,432 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:09,789 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:10,138 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:10,497 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:10,970 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:12,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:12,111 INFO L93 Difference]: Finished difference Result 1284 states and 1506 transitions. [2020-10-23 23:43:12,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 23:43:12,112 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-10-23 23:43:12,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:12,119 INFO L225 Difference]: With dead ends: 1284 [2020-10-23 23:43:12,119 INFO L226 Difference]: Without dead ends: 912 [2020-10-23 23:43:12,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 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 23:43:12,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-10-23 23:43:12,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 797. [2020-10-23 23:43:12,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-10-23 23:43:12,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 886 transitions. [2020-10-23 23:43:12,513 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 886 transitions. Word has length 190 [2020-10-23 23:43:12,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:12,514 INFO L481 AbstractCegarLoop]: Abstraction has 797 states and 886 transitions. [2020-10-23 23:43:12,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:43:12,514 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 886 transitions. [2020-10-23 23:43:12,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-23 23:43:12,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:12,518 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] [2020-10-23 23:43:12,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:43:12,519 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 23:43:12,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:12,520 INFO L82 PathProgramCache]: Analyzing trace with hash 222601279, now seen corresponding path program 1 times [2020-10-23 23:43:12,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:12,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072859775] [2020-10-23 23:43:12,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:12,908 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:12,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:12,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:12,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:12,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:12,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:12,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:43:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:12,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:43:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:12,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:12,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:43:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:13,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:43:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:13,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-23 23:43:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:13,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 23:43:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:13,108 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 23:43:13,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072859775] [2020-10-23 23:43:13,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:13,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:43:13,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130220207] [2020-10-23 23:43:13,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:43:13,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:13,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:43:13,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:43:13,112 INFO L87 Difference]: Start difference. First operand 797 states and 886 transitions. Second operand 10 states. [2020-10-23 23:43:13,807 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:15,588 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:16,014 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:16,368 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:16,767 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:17,158 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:17,575 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:17,948 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:18,373 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:19,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:19,450 INFO L93 Difference]: Finished difference Result 1021 states and 1200 transitions. [2020-10-23 23:43:19,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 23:43:19,456 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-10-23 23:43:19,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:19,463 INFO L225 Difference]: With dead ends: 1021 [2020-10-23 23:43:19,463 INFO L226 Difference]: Without dead ends: 1017 [2020-10-23 23:43:19,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 23:43:19,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2020-10-23 23:43:19,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 797. [2020-10-23 23:43:19,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-10-23 23:43:19,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 884 transitions. [2020-10-23 23:43:19,887 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 884 transitions. Word has length 195 [2020-10-23 23:43:19,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:19,888 INFO L481 AbstractCegarLoop]: Abstraction has 797 states and 884 transitions. [2020-10-23 23:43:19,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:43:19,888 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 884 transitions. [2020-10-23 23:43:19,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-23 23:43:19,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:19,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:19,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 23:43:19,893 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 23:43:19,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:19,893 INFO L82 PathProgramCache]: Analyzing trace with hash -347744547, now seen corresponding path program 1 times [2020-10-23 23:43:19,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:19,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328188467] [2020-10-23 23:43:19,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:20,264 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:20,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:20,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:20,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:20,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:20,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:20,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:43:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:20,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:43:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:20,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:20,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:43:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:20,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:43:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:20,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-23 23:43:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:20,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-23 23:43:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:20,501 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 23:43:20,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328188467] [2020-10-23 23:43:20,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:20,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:43:20,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915691719] [2020-10-23 23:43:20,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:43:20,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:20,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:43:20,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:43:20,504 INFO L87 Difference]: Start difference. First operand 797 states and 884 transitions. Second operand 10 states. [2020-10-23 23:43:21,956 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:22,353 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:43:22,789 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:43:23,162 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:23,543 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:43:23,894 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:25,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:25,404 INFO L93 Difference]: Finished difference Result 1721 states and 2011 transitions. [2020-10-23 23:43:25,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:43:25,405 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2020-10-23 23:43:25,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:25,412 INFO L225 Difference]: With dead ends: 1721 [2020-10-23 23:43:25,412 INFO L226 Difference]: Without dead ends: 1039 [2020-10-23 23:43:25,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-23 23:43:25,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2020-10-23 23:43:25,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 829. [2020-10-23 23:43:25,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-10-23 23:43:25,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 916 transitions. [2020-10-23 23:43:25,741 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 916 transitions. Word has length 196 [2020-10-23 23:43:25,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:25,742 INFO L481 AbstractCegarLoop]: Abstraction has 829 states and 916 transitions. [2020-10-23 23:43:25,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:43:25,742 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 916 transitions. [2020-10-23 23:43:25,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-23 23:43:25,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:25,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:25,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 23:43:25,747 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 23:43:25,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:25,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1487538371, now seen corresponding path program 1 times [2020-10-23 23:43:25,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:25,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098974272] [2020-10-23 23:43:25,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:26,129 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:26,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:26,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:26,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:26,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:26,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:26,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:43:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:26,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:43:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:26,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:26,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:43:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:26,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:43:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:26,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-23 23:43:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:26,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-23 23:43:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:26,370 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 23:43:26,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098974272] [2020-10-23 23:43:26,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:26,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 23:43:26,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049253851] [2020-10-23 23:43:26,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 23:43:26,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:26,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 23:43:26,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-23 23:43:26,373 INFO L87 Difference]: Start difference. First operand 829 states and 916 transitions. Second operand 13 states. [2020-10-23 23:43:27,127 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:27,545 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:43:27,956 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:28,327 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:43:28,676 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:29,639 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:29,995 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:43:30,361 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:30,747 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:43:31,106 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:32,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:32,492 INFO L93 Difference]: Finished difference Result 1537 states and 1776 transitions. [2020-10-23 23:43:32,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 23:43:32,501 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 196 [2020-10-23 23:43:32,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:32,507 INFO L225 Difference]: With dead ends: 1537 [2020-10-23 23:43:32,507 INFO L226 Difference]: Without dead ends: 823 [2020-10-23 23:43:32,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-10-23 23:43:32,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2020-10-23 23:43:32,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 679. [2020-10-23 23:43:32,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2020-10-23 23:43:32,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 732 transitions. [2020-10-23 23:43:32,772 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 732 transitions. Word has length 196 [2020-10-23 23:43:32,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:32,772 INFO L481 AbstractCegarLoop]: Abstraction has 679 states and 732 transitions. [2020-10-23 23:43:32,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 23:43:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 732 transitions. [2020-10-23 23:43:32,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-23 23:43:32,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:32,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:32,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 23:43:32,775 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:43:32,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:32,776 INFO L82 PathProgramCache]: Analyzing trace with hash 25197201, now seen corresponding path program 1 times [2020-10-23 23:43:32,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:32,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648438978] [2020-10-23 23:43:32,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:43:32,848 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:43:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:43:32,921 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:43:33,148 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:43:33,148 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:43:33,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 23:43:33,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:43:33 BoogieIcfgContainer [2020-10-23 23:43:33,491 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:43:33,499 INFO L168 Benchmark]: Toolchain (without parser) took 50372.63 ms. Allocated memory was 151.0 MB in the beginning and 810.5 MB in the end (delta: 659.6 MB). Free memory was 125.9 MB in the beginning and 761.9 MB in the end (delta: -636.1 MB). Peak memory consumption was 494.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:43:33,500 INFO L168 Benchmark]: CDTParser took 0.96 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:43:33,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 600.60 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 105.0 MB in the end (delta: 20.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 23:43:33,502 INFO L168 Benchmark]: Boogie Preprocessor took 103.68 ms. Allocated memory is still 151.0 MB. Free memory was 105.0 MB in the beginning and 101.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 23:43:33,502 INFO L168 Benchmark]: RCFGBuilder took 1228.93 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 101.1 MB in the beginning and 137.8 MB in the end (delta: -36.7 MB). Peak memory consumption was 48.5 MB. Max. memory is 8.0 GB. [2020-10-23 23:43:33,506 INFO L168 Benchmark]: TraceAbstraction took 48423.98 ms. Allocated memory was 181.4 MB in the beginning and 810.5 MB in the end (delta: 629.1 MB). Free memory was 137.3 MB in the beginning and 761.9 MB in the end (delta: -624.6 MB). Peak memory consumption was 473.7 MB. Max. memory is 8.0 GB. [2020-10-23 23:43:33,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 600.60 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 105.0 MB in the end (delta: 20.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 103.68 ms. Allocated memory is still 151.0 MB. Free memory was 105.0 MB in the beginning and 101.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1228.93 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 101.1 MB in the beginning and 137.8 MB in the end (delta: -36.7 MB). Peak memory consumption was 48.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 48423.98 ms. Allocated memory was 181.4 MB in the beginning and 810.5 MB in the end (delta: 629.1 MB). Free memory was 137.3 MB in the beginning and 761.9 MB in the end (delta: -624.6 MB). Peak memory consumption was 473.7 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)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=141, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=148, pumpRunning=135, systemActive=134, waterLevel=141] [L426] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=141, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=148, pumpRunning=0, systemActive=134, waterLevel=141] [L427] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=148, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=141, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=148, pumpRunning=0, systemActive=1, waterLevel=141] [L685] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=148, pumpRunning=0, systemActive=1, waterLevel=141] [L808] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=148, pumpRunning=0, systemActive=1, waterLevel=1] [L809] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=148, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L758] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L759] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L763] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L764] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L765] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L679] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L680] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L765] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L765] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L767] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L769] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L770] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L752] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L583] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L584] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L585] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L586] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L587] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L590] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L592] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L594] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L600] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L602] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L604] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L826] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L604] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L610] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L612] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L614] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L838] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L614] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L620] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L622] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L635] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L443] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L463] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L468] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L560] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L561] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L562] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L566] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L888] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L891] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L895] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L896] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L566] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L568] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L571] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L573] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L574] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L468] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L468] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L470] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L472] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L491] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L472] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L443] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L449] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L782] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L783] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L787] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L847] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L850] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L851] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L787] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L787] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L789] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L791] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L515] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L518] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L519] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L791] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L791] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L793] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L795] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L412] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product33.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 619 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 48.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 39.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1929 SDtfs, 2954 SDslu, 4248 SDs, 0 SdLazy, 7031 SolverSat, 767 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 21.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=829occurred 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: 2.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 931 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 1789 NumberOfCodeBlocks, 1789 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1579 ConstructedInterpolants, 0 QuantifiedInterpolants, 719601 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...