/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:52:09,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:52:09,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:52:09,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:52:09,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:52:09,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:52:09,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:52:09,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:52:09,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:52:09,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:52:09,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:52:09,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:52:09,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:52:09,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:52:09,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:52:09,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:52:09,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:52:09,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:52:09,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:52:09,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:52:09,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:52:09,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:52:09,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:52:09,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:52:09,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:52:09,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:52:09,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:52:09,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:52:09,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:52:09,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:52:09,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:52:09,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:52:09,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:52:09,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:52:09,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:52:09,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:52:09,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:52:09,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:52:09,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:52:09,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:52:09,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:52:09,722 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 19:52:09,740 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:52:09,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:52:09,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:52:09,745 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:52:09,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:52:09,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:52:09,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:52:09,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:52:09,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:52:09,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:52:09,747 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:52:09,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:52:09,748 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:52:09,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:52:09,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:52:09,748 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:52:09,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:52:09,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:52:09,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:52:09,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:52:09,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:52:09,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:52:09,750 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:52:10,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:52:10,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:52:10,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:52:10,212 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:52:10,212 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:52:10,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-10-23 19:52:10,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cc0b1a38/acee7c927c8149cc84c5a041dc02b57c/FLAG572c8fb26 [2020-10-23 19:52:11,053 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:52:11,054 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-10-23 19:52:11,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cc0b1a38/acee7c927c8149cc84c5a041dc02b57c/FLAG572c8fb26 [2020-10-23 19:52:11,298 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cc0b1a38/acee7c927c8149cc84c5a041dc02b57c [2020-10-23 19:52:11,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:52:11,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:52:11,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:52:11,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:52:11,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:52:11,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:52:11" (1/1) ... [2020-10-23 19:52:11,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f2a8a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:11, skipping insertion in model container [2020-10-23 19:52:11,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:52:11" (1/1) ... [2020-10-23 19:52:11,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:52:11,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:52:11,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:52:11,770 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:52:11,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:52:11,927 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:52:11,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:11 WrapperNode [2020-10-23 19:52:11,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:52:11,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:52:11,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:52:11,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:52:11,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:11" (1/1) ... [2020-10-23 19:52:11,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:11" (1/1) ... [2020-10-23 19:52:11,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:11" (1/1) ... [2020-10-23 19:52:11,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:11" (1/1) ... [2020-10-23 19:52:12,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:11" (1/1) ... [2020-10-23 19:52:12,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:11" (1/1) ... [2020-10-23 19:52:12,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:11" (1/1) ... [2020-10-23 19:52:12,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:52:12,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:52:12,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:52:12,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:52:12,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:11" (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 19:52:12,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:52:12,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:52:12,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:52:12,153 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:52:12,153 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:52:12,153 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:52:12,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:52:12,153 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:52:12,153 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:52:12,153 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:52:12,153 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:52:12,154 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:52:12,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:52:12,154 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:52:12,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:52:12,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:52:12,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:52:12,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-10-23 19:52:12,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-10-23 19:52:12,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:52:12,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:52:12,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:52:12,156 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:52:12,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:52:12,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:52:12,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:52:12,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:52:12,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:52:12,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:52:12,157 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:52:12,157 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:52:12,157 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:52:12,157 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:52:12,158 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:52:12,158 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:52:12,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:52:12,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:52:12,158 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:52:12,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:52:12,159 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:52:12,159 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:52:12,159 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:52:12,159 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:52:12,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:52:12,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:52:12,160 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:52:12,160 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:52:12,160 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:52:12,160 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:52:12,160 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:52:12,160 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:52:12,161 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:52:12,161 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:52:12,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-10-23 19:52:12,161 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:52:12,161 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:52:12,161 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:52:12,161 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:52:12,162 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:52:12,162 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:52:12,162 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:52:12,162 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:52:12,162 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:52:12,162 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:52:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:52:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:52:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:52:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-10-23 19:52:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:52:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:52:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:52:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:52:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:52:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:52:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:52:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:52:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:52:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:52:12,164 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:52:12,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:52:12,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:52:12,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:52:12,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:52:12,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:52:12,165 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:52:12,166 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:52:12,166 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:52:12,166 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:52:12,166 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:52:12,166 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:52:12,166 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:52:12,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:52:12,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:52:12,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:52:13,312 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:52:13,312 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:52:13,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:52:13 BoogieIcfgContainer [2020-10-23 19:52:13,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:52:13,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:52:13,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:52:13,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:52:13,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:52:11" (1/3) ... [2020-10-23 19:52:13,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b7c6b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:52:13, skipping insertion in model container [2020-10-23 19:52:13,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:11" (2/3) ... [2020-10-23 19:52:13,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b7c6b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:52:13, skipping insertion in model container [2020-10-23 19:52:13,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:52:13" (3/3) ... [2020-10-23 19:52:13,325 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-10-23 19:52:13,338 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:52:13,344 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:52:13,358 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:52:13,383 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:52:13,383 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:52:13,383 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:52:13,383 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:52:13,384 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:52:13,384 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:52:13,384 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:52:13,384 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:52:13,423 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-10-23 19:52:13,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-23 19:52:13,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:13,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:52:13,448 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 19:52:13,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:13,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1470258472, now seen corresponding path program 1 times [2020-10-23 19:52:13,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:13,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435801341] [2020-10-23 19:52:13,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:13,540 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:14,240 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:14,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:14,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:14,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:14,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:14,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:14,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:14,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:52:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:14,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:52:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:14,427 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 19:52:14,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435801341] [2020-10-23 19:52:14,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:14,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:52:14,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987326519] [2020-10-23 19:52:14,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:52:14,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:14,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:52:14,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:52:14,459 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 4 states. [2020-10-23 19:52:16,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:16,029 INFO L93 Difference]: Finished difference Result 452 states and 535 transitions. [2020-10-23 19:52:16,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 19:52:16,031 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-10-23 19:52:16,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:16,047 INFO L225 Difference]: With dead ends: 452 [2020-10-23 19:52:16,047 INFO L226 Difference]: Without dead ends: 293 [2020-10-23 19:52:16,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:52:16,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-23 19:52:16,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 246. [2020-10-23 19:52:16,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-23 19:52:16,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 265 transitions. [2020-10-23 19:52:16,229 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 265 transitions. Word has length 154 [2020-10-23 19:52:16,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:16,232 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 265 transitions. [2020-10-23 19:52:16,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:52:16,232 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 265 transitions. [2020-10-23 19:52:16,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-23 19:52:16,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:16,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:52:16,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:52:16,249 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 19:52:16,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:16,250 INFO L82 PathProgramCache]: Analyzing trace with hash 810904873, now seen corresponding path program 1 times [2020-10-23 19:52:16,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:16,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468674963] [2020-10-23 19:52:16,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:16,256 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:16,796 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:16,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:16,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:16,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:16,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:16,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:16,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:16,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-23 19:52:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:16,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:52:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:16,901 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 19:52:16,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468674963] [2020-10-23 19:52:16,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:16,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 19:52:16,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382614106] [2020-10-23 19:52:16,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 19:52:16,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:16,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 19:52:16,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:52:16,904 INFO L87 Difference]: Start difference. First operand 246 states and 265 transitions. Second operand 5 states. [2020-10-23 19:52:17,895 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:18,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:18,908 INFO L93 Difference]: Finished difference Result 374 states and 422 transitions. [2020-10-23 19:52:18,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 19:52:18,908 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-23 19:52:18,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:18,912 INFO L225 Difference]: With dead ends: 374 [2020-10-23 19:52:18,913 INFO L226 Difference]: Without dead ends: 282 [2020-10-23 19:52:18,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 19:52:18,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-23 19:52:19,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 236. [2020-10-23 19:52:19,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-23 19:52:19,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 252 transitions. [2020-10-23 19:52:19,029 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 252 transitions. Word has length 155 [2020-10-23 19:52:19,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:19,031 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 252 transitions. [2020-10-23 19:52:19,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 19:52:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 252 transitions. [2020-10-23 19:52:19,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-23 19:52:19,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:19,035 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] [2020-10-23 19:52:19,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:52:19,036 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 19:52:19,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:19,036 INFO L82 PathProgramCache]: Analyzing trace with hash -257166783, now seen corresponding path program 1 times [2020-10-23 19:52:19,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:19,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029620337] [2020-10-23 19:52:19,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:19,041 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:19,552 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:19,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:19,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:19,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:19,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:19,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:19,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:19,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:52:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:19,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 19:52:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:19,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 19:52:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:19,778 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 19:52:19,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029620337] [2020-10-23 19:52:19,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:19,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:52:19,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947357824] [2020-10-23 19:52:19,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:52:19,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:19,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:52:19,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:52:19,782 INFO L87 Difference]: Start difference. First operand 236 states and 252 transitions. Second operand 11 states. [2020-10-23 19:52:20,528 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:52:20,983 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:52:21,388 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:52:21,799 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:22,191 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:52:22,571 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:24,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:24,415 INFO L93 Difference]: Finished difference Result 421 states and 487 transitions. [2020-10-23 19:52:24,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:52:24,417 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 168 [2020-10-23 19:52:24,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:24,425 INFO L225 Difference]: With dead ends: 421 [2020-10-23 19:52:24,425 INFO L226 Difference]: Without dead ends: 305 [2020-10-23 19:52:24,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:52:24,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-10-23 19:52:24,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 236. [2020-10-23 19:52:24,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-23 19:52:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 251 transitions. [2020-10-23 19:52:24,517 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 251 transitions. Word has length 168 [2020-10-23 19:52:24,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:24,517 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 251 transitions. [2020-10-23 19:52:24,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:52:24,518 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 251 transitions. [2020-10-23 19:52:24,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-23 19:52:24,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:24,521 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] [2020-10-23 19:52:24,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:52:24,521 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 19:52:24,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:24,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1220892336, now seen corresponding path program 1 times [2020-10-23 19:52:24,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:24,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101771306] [2020-10-23 19:52:24,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:24,526 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:24,965 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:24,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:25,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:25,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:25,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:25,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:25,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:25,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:52:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:25,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:52:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:25,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:52:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:25,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 19:52:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:25,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-23 19:52:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:25,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:52:25,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101771306] [2020-10-23 19:52:25,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:25,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 19:52:25,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602499314] [2020-10-23 19:52:25,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 19:52:25,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:25,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 19:52:25,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 19:52:25,145 INFO L87 Difference]: Start difference. First operand 236 states and 251 transitions. Second operand 8 states. [2020-10-23 19:52:25,799 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:52:27,840 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:28,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:28,754 INFO L93 Difference]: Finished difference Result 602 states and 719 transitions. [2020-10-23 19:52:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-23 19:52:28,755 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 176 [2020-10-23 19:52:28,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:28,760 INFO L225 Difference]: With dead ends: 602 [2020-10-23 19:52:28,760 INFO L226 Difference]: Without dead ends: 486 [2020-10-23 19:52:28,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:52:28,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-10-23 19:52:28,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 343. [2020-10-23 19:52:28,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-10-23 19:52:28,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 370 transitions. [2020-10-23 19:52:28,903 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 370 transitions. Word has length 176 [2020-10-23 19:52:28,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:28,903 INFO L481 AbstractCegarLoop]: Abstraction has 343 states and 370 transitions. [2020-10-23 19:52:28,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 19:52:28,903 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 370 transitions. [2020-10-23 19:52:28,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-23 19:52:28,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:28,906 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] [2020-10-23 19:52:28,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:52:28,907 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 19:52:28,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:28,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1960817209, now seen corresponding path program 1 times [2020-10-23 19:52:28,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:28,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377075813] [2020-10-23 19:52:28,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:28,911 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:29,300 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:29,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:29,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:29,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:29,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:29,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:29,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:29,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:52:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:29,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:52:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:29,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:52:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:29,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:52:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:29,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:52:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:29,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-23 19:52:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:29,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-23 19:52:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:29,576 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 19:52:29,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377075813] [2020-10-23 19:52:29,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:29,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:52:29,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689955184] [2020-10-23 19:52:29,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:52:29,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:29,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:52:29,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:52:29,584 INFO L87 Difference]: Start difference. First operand 343 states and 370 transitions. Second operand 11 states. [2020-10-23 19:52:30,293 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:52:31,676 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:32,076 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:52:32,449 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:52:32,827 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:33,253 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:52:33,629 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:35,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:35,638 INFO L93 Difference]: Finished difference Result 989 states and 1228 transitions. [2020-10-23 19:52:35,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-23 19:52:35,638 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 200 [2020-10-23 19:52:35,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:35,645 INFO L225 Difference]: With dead ends: 989 [2020-10-23 19:52:35,645 INFO L226 Difference]: Without dead ends: 766 [2020-10-23 19:52:35,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2020-10-23 19:52:35,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2020-10-23 19:52:35,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 523. [2020-10-23 19:52:35,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2020-10-23 19:52:35,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 575 transitions. [2020-10-23 19:52:35,925 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 575 transitions. Word has length 200 [2020-10-23 19:52:35,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:35,926 INFO L481 AbstractCegarLoop]: Abstraction has 523 states and 575 transitions. [2020-10-23 19:52:35,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:52:35,926 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 575 transitions. [2020-10-23 19:52:35,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-23 19:52:35,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:35,930 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] [2020-10-23 19:52:35,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:52:35,930 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 19:52:35,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:35,931 INFO L82 PathProgramCache]: Analyzing trace with hash -203027396, now seen corresponding path program 1 times [2020-10-23 19:52:35,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:35,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334464819] [2020-10-23 19:52:35,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:35,935 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:36,335 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:36,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:36,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:36,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:36,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:36,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:36,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:36,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:52:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:36,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:52:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:36,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:52:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:36,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:52:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:36,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:52:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:36,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-23 19:52:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:36,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-23 19:52:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:36,507 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 19:52:36,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334464819] [2020-10-23 19:52:36,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:36,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:52:36,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669771226] [2020-10-23 19:52:36,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:52:36,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:36,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:52:36,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:52:36,509 INFO L87 Difference]: Start difference. First operand 523 states and 575 transitions. Second operand 11 states. [2020-10-23 19:52:37,226 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:52:39,122 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:39,501 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:52:39,909 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:40,272 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:52:40,654 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:52:41,024 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:41,387 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:41,877 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:43,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:43,888 INFO L93 Difference]: Finished difference Result 1681 states and 2091 transitions. [2020-10-23 19:52:43,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-23 19:52:43,889 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 200 [2020-10-23 19:52:43,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:43,900 INFO L225 Difference]: With dead ends: 1681 [2020-10-23 19:52:43,900 INFO L226 Difference]: Without dead ends: 1278 [2020-10-23 19:52:43,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2020-10-23 19:52:43,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2020-10-23 19:52:44,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 849. [2020-10-23 19:52:44,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2020-10-23 19:52:44,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 939 transitions. [2020-10-23 19:52:44,328 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 939 transitions. Word has length 200 [2020-10-23 19:52:44,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:44,329 INFO L481 AbstractCegarLoop]: Abstraction has 849 states and 939 transitions. [2020-10-23 19:52:44,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:52:44,329 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 939 transitions. [2020-10-23 19:52:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-23 19:52:44,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:44,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:52:44,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:52:44,334 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 19:52:44,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:44,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1794956278, now seen corresponding path program 1 times [2020-10-23 19:52:44,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:44,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972154079] [2020-10-23 19:52:44,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:44,337 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:44,755 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:44,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:44,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:44,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:44,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:44,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:44,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:44,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:52:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:44,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:52:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:44,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:52:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:44,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:52:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:44,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:52:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:44,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:52:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:44,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-23 19:52:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:44,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-23 19:52:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:45,009 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 19:52:45,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972154079] [2020-10-23 19:52:45,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:45,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-23 19:52:45,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819384860] [2020-10-23 19:52:45,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 19:52:45,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:45,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 19:52:45,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-23 19:52:45,011 INFO L87 Difference]: Start difference. First operand 849 states and 939 transitions. Second operand 12 states. [2020-10-23 19:52:45,732 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:52:47,727 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:48,103 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:52:48,473 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:52:48,939 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:49,328 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:49,756 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:52:50,148 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:50,585 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:53,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:53,093 INFO L93 Difference]: Finished difference Result 2267 states and 2784 transitions. [2020-10-23 19:52:53,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-23 19:52:53,094 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 205 [2020-10-23 19:52:53,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:53,106 INFO L225 Difference]: With dead ends: 2267 [2020-10-23 19:52:53,106 INFO L226 Difference]: Without dead ends: 1538 [2020-10-23 19:52:53,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=434, Invalid=1206, Unknown=0, NotChecked=0, Total=1640 [2020-10-23 19:52:53,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2020-10-23 19:52:53,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 845. [2020-10-23 19:52:53,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 845 states. [2020-10-23 19:52:53,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 931 transitions. [2020-10-23 19:52:53,420 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 931 transitions. Word has length 205 [2020-10-23 19:52:53,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:53,421 INFO L481 AbstractCegarLoop]: Abstraction has 845 states and 931 transitions. [2020-10-23 19:52:53,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 19:52:53,421 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 931 transitions. [2020-10-23 19:52:53,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-23 19:52:53,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:53,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:52:53,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 19:52:53,425 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 19:52:53,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:53,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1519791272, now seen corresponding path program 1 times [2020-10-23 19:52:53,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:53,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774679581] [2020-10-23 19:52:53,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:53,429 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:53,873 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:53,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:53,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:53,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:53,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:53,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:53,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:53,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:52:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:53,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:52:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:53,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:52:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:54,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:52:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:54,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:52:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:54,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:52:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:54,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 19:52:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:54,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 19:52:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:54,149 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 19:52:54,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774679581] [2020-10-23 19:52:54,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:54,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-23 19:52:54,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42987222] [2020-10-23 19:52:54,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 19:52:54,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:54,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 19:52:54,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-23 19:52:54,152 INFO L87 Difference]: Start difference. First operand 845 states and 931 transitions. Second operand 12 states. [2020-10-23 19:52:55,924 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:56,349 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:52:56,782 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 19:52:57,192 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:57,622 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:52:58,021 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:00,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:00,587 INFO L93 Difference]: Finished difference Result 2285 states and 2829 transitions. [2020-10-23 19:53:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 19:53:00,593 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 206 [2020-10-23 19:53:00,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:00,603 INFO L225 Difference]: With dead ends: 2285 [2020-10-23 19:53:00,603 INFO L226 Difference]: Without dead ends: 1560 [2020-10-23 19:53:00,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2020-10-23 19:53:00,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2020-10-23 19:53:01,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 877. [2020-10-23 19:53:01,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2020-10-23 19:53:01,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 963 transitions. [2020-10-23 19:53:01,011 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 963 transitions. Word has length 206 [2020-10-23 19:53:01,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:01,012 INFO L481 AbstractCegarLoop]: Abstraction has 877 states and 963 transitions. [2020-10-23 19:53:01,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 19:53:01,012 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 963 transitions. [2020-10-23 19:53:01,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-23 19:53:01,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:01,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:01,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 19:53:01,016 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 19:53:01,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:01,016 INFO L82 PathProgramCache]: Analyzing trace with hash 545921096, now seen corresponding path program 1 times [2020-10-23 19:53:01,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:01,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264557386] [2020-10-23 19:53:01,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:01,019 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,425 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:01,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:53:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:53:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:53:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:53:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:53:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:53:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 19:53:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 19:53:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:01,741 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 19:53:01,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1264557386] [2020-10-23 19:53:01,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:01,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 19:53:01,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232614203] [2020-10-23 19:53:01,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 19:53:01,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:01,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 19:53:01,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:53:01,744 INFO L87 Difference]: Start difference. First operand 877 states and 963 transitions. Second operand 15 states. [2020-10-23 19:53:02,582 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:02,988 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:53:03,379 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:03,782 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:53:04,168 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:05,348 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:05,732 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:53:06,136 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:06,536 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:53:06,922 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:09,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:09,398 INFO L93 Difference]: Finished difference Result 1952 states and 2388 transitions. [2020-10-23 19:53:09,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-23 19:53:09,399 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 206 [2020-10-23 19:53:09,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:09,409 INFO L225 Difference]: With dead ends: 1952 [2020-10-23 19:53:09,409 INFO L226 Difference]: Without dead ends: 1195 [2020-10-23 19:53:09,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2020-10-23 19:53:09,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2020-10-23 19:53:09,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 724. [2020-10-23 19:53:09,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2020-10-23 19:53:09,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 779 transitions. [2020-10-23 19:53:09,746 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 779 transitions. Word has length 206 [2020-10-23 19:53:09,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:09,747 INFO L481 AbstractCegarLoop]: Abstraction has 724 states and 779 transitions. [2020-10-23 19:53:09,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 19:53:09,747 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 779 transitions. [2020-10-23 19:53:09,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 19:53:09,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:09,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:09,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 19:53:09,750 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 19:53:09,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:09,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1904790336, now seen corresponding path program 1 times [2020-10-23 19:53:09,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:09,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705872504] [2020-10-23 19:53:09,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:09,754 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,159 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:10,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:53:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:53:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 19:53:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-23 19:53:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:53:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:53:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:53:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 19:53:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-23 19:53:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:10,363 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 19:53:10,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705872504] [2020-10-23 19:53:10,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:10,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:53:10,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728354553] [2020-10-23 19:53:10,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:53:10,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:10,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:53:10,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:53:10,366 INFO L87 Difference]: Start difference. First operand 724 states and 779 transitions. Second operand 9 states. [2020-10-23 19:53:11,089 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:53:15,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:15,272 INFO L93 Difference]: Finished difference Result 1710 states and 2117 transitions. [2020-10-23 19:53:15,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-23 19:53:15,272 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 211 [2020-10-23 19:53:15,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:15,282 INFO L225 Difference]: With dead ends: 1710 [2020-10-23 19:53:15,282 INFO L226 Difference]: Without dead ends: 1706 [2020-10-23 19:53:15,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=297, Invalid=963, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 19:53:15,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2020-10-23 19:53:15,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1046. [2020-10-23 19:53:15,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1046 states. [2020-10-23 19:53:15,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1127 transitions. [2020-10-23 19:53:15,774 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1127 transitions. Word has length 211 [2020-10-23 19:53:15,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:15,774 INFO L481 AbstractCegarLoop]: Abstraction has 1046 states and 1127 transitions. [2020-10-23 19:53:15,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:53:15,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1127 transitions. [2020-10-23 19:53:15,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-23 19:53:15,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:15,779 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:15,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 19:53:15,780 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:53:15,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:15,780 INFO L82 PathProgramCache]: Analyzing trace with hash -425266406, now seen corresponding path program 1 times [2020-10-23 19:53:15,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:15,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199379839] [2020-10-23 19:53:15,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:16,166 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 89 [2020-10-23 19:53:16,333 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 19:53:16,681 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 81 [2020-10-23 19:53:16,800 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-23 19:53:17,125 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 80 [2020-10-23 19:53:17,240 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-23 19:53:17,568 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 79 [2020-10-23 19:53:17,679 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-23 19:53:18,005 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 78 [2020-10-23 19:53:18,118 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-23 19:53:18,521 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 89 [2020-10-23 19:53:18,665 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 19:53:19,008 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 81 [2020-10-23 19:53:19,125 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-23 19:53:19,521 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 89 [2020-10-23 19:53:19,672 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 19:53:19,998 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 79 [2020-10-23 19:53:20,102 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-23 19:53:20,454 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 81 [2020-10-23 19:53:20,569 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-23 19:53:20,903 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 79 [2020-10-23 19:53:21,012 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-23 19:53:21,397 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2020-10-23 19:53:21,534 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-23 19:53:21,930 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2020-10-23 19:53:22,072 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-23 19:53:22,489 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2020-10-23 19:53:22,640 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-23 19:53:23,335 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:23,979 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:24,682 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:25,377 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:26,075 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:26,786 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:27,531 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:28,257 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:28,261 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:53:28,941 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 183 [2020-10-23 19:53:29,628 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 183 [2020-10-23 19:53:30,318 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 183 [2020-10-23 19:53:31,026 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 183 [2020-10-23 19:53:31,029 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:53:31,702 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 178 [2020-10-23 19:53:32,365 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 179 [2020-10-23 19:53:33,059 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 179 [2020-10-23 19:53:33,717 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 178 [2020-10-23 19:53:33,723 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:53:34,388 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:53:35,091 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:53:35,794 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:53:36,521 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:53:36,523 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:53:37,216 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 180 [2020-10-23 19:53:37,883 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 179 [2020-10-23 19:53:38,536 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 180 [2020-10-23 19:53:39,193 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 179 [2020-10-23 19:53:39,198 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:53:39,902 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:40,608 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:41,324 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:42,054 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:42,797 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:43,473 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:44,164 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:44,843 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:53:44,847 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:53:45,515 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:53:46,180 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:53:46,887 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:53:47,558 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:53:47,561 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:53:48,255 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:53:48,977 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:53:49,726 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:53:50,459 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:53:51,155 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:53:51,841 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:53:52,515 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:53:53,210 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:53:53,215 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:53:53,893 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 184 [2020-10-23 19:53:54,569 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 184 [2020-10-23 19:53:55,248 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 184 [2020-10-23 19:53:55,933 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 184 [2020-10-23 19:53:55,937 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:53:56,609 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:53:57,279 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:53:57,963 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:53:58,635 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:53:58,638 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:53:59,325 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:54:00,004 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:54:00,688 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:54:01,372 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:54:01,376 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:54:02,053 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 180 [2020-10-23 19:54:02,734 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 180 [2020-10-23 19:54:03,412 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 180 [2020-10-23 19:54:04,099 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 179 [2020-10-23 19:54:04,785 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 180 [2020-10-23 19:54:05,490 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 180 [2020-10-23 19:54:06,186 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 179 [2020-10-23 19:54:06,907 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 180 [2020-10-23 19:54:06,910 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:54:07,638 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 180 [2020-10-23 19:54:08,394 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 180 [2020-10-23 19:54:09,164 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 179 [2020-10-23 19:54:09,925 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 180 [2020-10-23 19:54:10,683 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 180 [2020-10-23 19:54:11,406 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 180 [2020-10-23 19:54:12,169 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 179 [2020-10-23 19:54:12,921 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 180 [2020-10-23 19:54:12,924 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:54:13,676 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:54:14,430 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:54:15,182 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:54:15,931 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 178 [2020-10-23 19:54:16,675 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:54:17,427 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 178 [2020-10-23 19:54:18,186 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:54:18,932 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:54:18,936 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:54:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:54:19,307 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:54:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:54:19,616 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:54:19,897 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:54:19,897 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:54:19,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-23 19:54:19,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:54:19 BoogieIcfgContainer [2020-10-23 19:54:19,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:54:19,959 INFO L168 Benchmark]: Toolchain (without parser) took 128656.53 ms. Allocated memory was 125.8 MB in the beginning and 676.3 MB in the end (delta: 550.5 MB). Free memory was 101.5 MB in the beginning and 293.5 MB in the end (delta: -192.0 MB). Peak memory consumption was 359.4 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:19,959 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 87.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:54:19,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.86 ms. Allocated memory is still 125.8 MB. Free memory was 100.9 MB in the beginning and 80.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:19,960 INFO L168 Benchmark]: Boogie Preprocessor took 115.54 ms. Allocated memory is still 125.8 MB. Free memory was 80.4 MB in the beginning and 76.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:19,961 INFO L168 Benchmark]: RCFGBuilder took 1267.25 ms. Allocated memory was 125.8 MB in the beginning and 156.2 MB in the end (delta: 30.4 MB). Free memory was 76.5 MB in the beginning and 84.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 24.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:19,961 INFO L168 Benchmark]: TraceAbstraction took 126640.24 ms. Allocated memory was 156.2 MB in the beginning and 676.3 MB in the end (delta: 520.1 MB). Free memory was 83.7 MB in the beginning and 293.5 MB in the end (delta: -209.8 MB). Peak memory consumption was 310.3 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:19,974 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 87.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 617.86 ms. Allocated memory is still 125.8 MB. Free memory was 100.9 MB in the beginning and 80.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 115.54 ms. Allocated memory is still 125.8 MB. Free memory was 80.4 MB in the beginning and 76.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1267.25 ms. Allocated memory was 125.8 MB in the beginning and 156.2 MB in the end (delta: 30.4 MB). Free memory was 76.5 MB in the beginning and 84.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 24.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 126640.24 ms. Allocated memory was 156.2 MB in the beginning and 676.3 MB in the end (delta: 520.1 MB). Free memory was 83.7 MB in the beginning and 293.5 MB in the end (delta: -209.8 MB). Peak memory consumption was 310.3 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: [L42] int cleanupTimeShifts = 4; [L153] int waterLevel = 1; [L154] int methaneLevelCritical = 0; [L257] int methAndRunningLastTime ; [L500] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L767] int pumpRunning = 0; [L768] int systemActive = 1; [L125] int retValue_acc ; [L126] int tmp ; [L130] FCALL select_helpers() [L131] FCALL select_features() [L132] CALL, EXPR valid_product() [L322] int retValue_acc ; [L325] retValue_acc = 1 [L326] return (retValue_acc); [L132] RET, EXPR valid_product() [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) [L136] FCALL setup() [L137] CALL runTest() [L115] CALL __utac_acc__Specification2_spec__1() [L262] methAndRunningLastTime = 0 [L115] RET __utac_acc__Specification2_spec__1() [L116] CALL test() [L699] int splverifierCounter ; [L700] int tmp ; [L701] int tmp___0 ; [L702] int tmp___1 ; [L703] int tmp___2 ; [L706] splverifierCounter = 0 [L708] COND TRUE 1 [L710] COND TRUE splverifierCounter < 4 [L716] tmp = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp) [L720] CALL waterRise() [L171] COND TRUE waterLevel < 2 [L172] waterLevel = waterLevel + 1 [L720] RET waterRise() [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___0) [L730] CALL changeMethaneLevel() [L183] COND FALSE !(\read(methaneLevelCritical)) [L186] methaneLevelCritical = 1 [L730] RET changeMethaneLevel() [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L740] CALL startSystem() [L922] systemActive = 1 [L740] RET startSystem() [L753] CALL timeShift() [L774] COND FALSE !(\read(pumpRunning)) [L781] COND TRUE \read(systemActive) [L783] CALL processEnvironment() [L803] int tmp ; [L806] COND TRUE ! pumpRunning [L808] CALL, EXPR isHighWaterLevel() [L900] int retValue_acc ; [L901] int tmp ; [L902] int tmp___0 ; [L906] CALL, EXPR isHighWaterSensorDry() [L233] int retValue_acc ; [L236] COND FALSE !(waterLevel < 2) [L240] retValue_acc = 0 [L241] return (retValue_acc); [L906] RET, EXPR isHighWaterSensorDry() [L906] tmp = isHighWaterSensorDry() [L908] COND FALSE !(\read(tmp)) [L911] tmp___0 = 1 [L913] retValue_acc = tmp___0 [L914] return (retValue_acc); [L808] RET, EXPR isHighWaterLevel() [L808] tmp = isHighWaterLevel() [L810] COND TRUE \read(tmp) [L812] CALL activatePump() [L831] pumpRunning = 1 [L812] RET activatePump() [L783] RET processEnvironment() [L789] CALL __utac_acc__Specification2_spec__2() [L267] int tmp ; [L268] int tmp___0 ; [L272] CALL, EXPR isMethaneLevelCritical() [L192] int retValue_acc ; [L195] retValue_acc = methaneLevelCritical [L196] return (retValue_acc); [L272] RET, EXPR isMethaneLevelCritical() [L272] tmp = isMethaneLevelCritical() [L274] COND TRUE \read(tmp) [L276] CALL, EXPR isPumpRunning() [L855] int retValue_acc ; [L858] retValue_acc = pumpRunning [L859] return (retValue_acc); [L276] RET, EXPR isPumpRunning() [L276] tmp___0 = isPumpRunning() [L278] COND TRUE \read(tmp___0) [L279] COND FALSE !(\read(methAndRunningLastTime)) [L284] methAndRunningLastTime = 1 [L789] RET __utac_acc__Specification2_spec__2() [L753] RET timeShift() [L708] COND TRUE 1 [L710] COND TRUE splverifierCounter < 4 [L716] tmp = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp)) [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___0)) [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L740] CALL startSystem() [L922] systemActive = 1 [L740] RET startSystem() [L753] CALL timeShift() [L774] COND TRUE \read(pumpRunning) [L776] CALL lowerWaterLevel() [L159] COND FALSE !(waterLevel > 0) [L776] RET lowerWaterLevel() [L781] COND TRUE \read(systemActive) [L783] CALL processEnvironment() [L803] int tmp ; [L806] COND FALSE !(! pumpRunning) [L821] FCALL processEnvironment__wrappee__base() [L783] RET processEnvironment() [L789] CALL __utac_acc__Specification2_spec__2() [L267] int tmp ; [L268] int tmp___0 ; [L272] CALL, EXPR isMethaneLevelCritical() [L192] int retValue_acc ; [L195] retValue_acc = methaneLevelCritical [L196] return (retValue_acc); [L272] RET, EXPR isMethaneLevelCritical() [L272] tmp = isMethaneLevelCritical() [L274] COND TRUE \read(tmp) [L276] CALL, EXPR isPumpRunning() [L855] int retValue_acc ; [L858] retValue_acc = pumpRunning [L859] return (retValue_acc); [L276] RET, EXPR isPumpRunning() [L276] tmp___0 = isPumpRunning() [L278] COND TRUE \read(tmp___0) [L279] COND TRUE \read(methAndRunningLastTime) [L281] CALL __automaton_fail() [L251] CALL reach_error() [L3] __assert_fail("0", "minepump_spec2_product34.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 632 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 126.5s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 52.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2266 SDtfs, 7851 SDslu, 5439 SDs, 0 SdLazy, 10207 SolverSat, 2185 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 527 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1463 ImplicationChecksByTransitivity, 24.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1046occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 3484 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...