/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 0.2.1-dev-36cd7be [2021-02-23 16:16:39,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 16:16:39,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 16:16:40,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 16:16:40,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 16:16:40,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 16:16:40,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 16:16:40,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 16:16:40,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 16:16:40,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 16:16:40,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 16:16:40,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 16:16:40,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 16:16:40,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 16:16:40,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 16:16:40,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 16:16:40,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 16:16:40,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 16:16:40,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 16:16:40,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 16:16:40,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 16:16:40,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 16:16:40,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 16:16:40,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 16:16:40,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 16:16:40,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 16:16:40,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 16:16:40,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 16:16:40,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 16:16:40,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 16:16:40,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 16:16:40,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 16:16:40,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 16:16:40,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 16:16:40,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 16:16:40,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 16:16:40,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 16:16:40,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 16:16:40,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 16:16:40,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 16:16:40,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 16:16:40,147 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 16:16:40,172 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 16:16:40,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 16:16:40,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 16:16:40,176 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 16:16:40,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 16:16:40,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 16:16:40,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 16:16:40,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 16:16:40,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 16:16:40,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 16:16:40,178 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 16:16:40,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 16:16:40,179 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 16:16:40,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 16:16:40,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 16:16:40,180 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 16:16:40,180 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 16:16:40,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 16:16:40,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 16:16:40,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 16:16:40,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 16:16:40,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 16:16:40,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 16:16:40,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 16:16:40,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 16:16:40,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 16:16:40,610 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 16:16:40,611 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 16:16:40,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2021-02-23 16:16:40,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b75cfda31/12fbb24f693f4cf18d9195a860fed930/FLAG41daef891 [2021-02-23 16:16:41,424 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 16:16:41,426 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2021-02-23 16:16:41,444 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b75cfda31/12fbb24f693f4cf18d9195a860fed930/FLAG41daef891 [2021-02-23 16:16:41,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b75cfda31/12fbb24f693f4cf18d9195a860fed930 [2021-02-23 16:16:41,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 16:16:41,737 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 16:16:41,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 16:16:41,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 16:16:41,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 16:16:41,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:16:41" (1/1) ... [2021-02-23 16:16:41,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@477b1515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:41, skipping insertion in model container [2021-02-23 16:16:41,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:16:41" (1/1) ... [2021-02-23 16:16:41,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 16:16:41,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 16:16:41,997 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c[4065,4078] [2021-02-23 16:16:42,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:16:42,168 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 16:16:42,232 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c[4065,4078] [2021-02-23 16:16:42,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:16:42,397 INFO L208 MainTranslator]: Completed translation [2021-02-23 16:16:42,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:42 WrapperNode [2021-02-23 16:16:42,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 16:16:42,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 16:16:42,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 16:16:42,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 16:16:42,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:42" (1/1) ... [2021-02-23 16:16:42,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:42" (1/1) ... [2021-02-23 16:16:42,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:42" (1/1) ... [2021-02-23 16:16:42,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:42" (1/1) ... [2021-02-23 16:16:42,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:42" (1/1) ... [2021-02-23 16:16:42,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:42" (1/1) ... [2021-02-23 16:16:42,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:42" (1/1) ... [2021-02-23 16:16:42,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 16:16:42,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 16:16:42,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 16:16:42,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 16:16:42,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:42" (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 [2021-02-23 16:16:42,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 16:16:42,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 16:16:42,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 16:16:42,709 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 16:16:42,710 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 16:16:42,710 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 16:16:42,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 16:16:42,710 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 16:16:42,711 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 16:16:42,711 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 16:16:42,711 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 16:16:42,712 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 16:16:42,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 16:16:42,712 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 16:16:42,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 16:16:42,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-23 16:16:42,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 16:16:42,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2021-02-23 16:16:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2021-02-23 16:16:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 16:16:42,717 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 16:16:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 16:16:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 16:16:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 16:16:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 16:16:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 16:16:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 16:16:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 16:16:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 16:16:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 16:16:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 16:16:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 16:16:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 16:16:42,720 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 16:16:42,720 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 16:16:42,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 16:16:42,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 16:16:42,720 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 16:16:42,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-23 16:16:42,720 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 16:16:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 16:16:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 16:16:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 16:16:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 16:16:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 16:16:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 16:16:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 16:16:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 16:16:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 16:16:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 16:16:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 16:16:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 16:16:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 16:16:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2021-02-23 16:16:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 16:16:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 16:16:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 16:16:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 16:16:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 16:16:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 16:16:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 16:16:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 16:16:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 16:16:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 16:16:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-23 16:16:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 16:16:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 16:16:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2021-02-23 16:16:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 16:16:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 16:16:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 16:16:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 16:16:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 16:16:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 16:16:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 16:16:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 16:16:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 16:16:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 16:16:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 16:16:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 16:16:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 16:16:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 16:16:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 16:16:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 16:16:42,729 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 16:16:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 16:16:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 16:16:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 16:16:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 16:16:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-23 16:16:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 16:16:42,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 16:16:42,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 16:16:42,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 16:16:44,614 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 16:16:44,614 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 16:16:44,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:16:44 BoogieIcfgContainer [2021-02-23 16:16:44,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 16:16:44,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 16:16:44,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 16:16:44,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 16:16:44,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 04:16:41" (1/3) ... [2021-02-23 16:16:44,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4dba68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:16:44, skipping insertion in model container [2021-02-23 16:16:44,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:16:42" (2/3) ... [2021-02-23 16:16:44,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4dba68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:16:44, skipping insertion in model container [2021-02-23 16:16:44,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:16:44" (3/3) ... [2021-02-23 16:16:44,627 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2021-02-23 16:16:44,634 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 16:16:44,640 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 16:16:44,660 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 16:16:44,686 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 16:16:44,686 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 16:16:44,686 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 16:16:44,687 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 16:16:44,687 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 16:16:44,687 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 16:16:44,687 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 16:16:44,687 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 16:16:44,710 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states. [2021-02-23 16:16:44,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-02-23 16:16:44,731 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:16:44,732 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] [2021-02-23 16:16:44,732 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:16:44,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:16:44,739 INFO L82 PathProgramCache]: Analyzing trace with hash -744551406, now seen corresponding path program 1 times [2021-02-23 16:16:44,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:16:44,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502091614] [2021-02-23 16:16:44,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:16:44,826 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:16:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:45,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:45,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:45,834 WARN L202 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:16:45,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:16:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:45,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:45,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:16:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:45,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:45,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:16:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:45,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:45,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:16:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:45,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:45,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:16:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:45,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:45,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:16:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:45,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:45,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-23 16:16:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:45,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:45,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:45,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 16:16:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:46,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:46,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:46,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:16:46,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502091614] [2021-02-23 16:16:46,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:16:46,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 16:16:46,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029125825] [2021-02-23 16:16:46,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 16:16:46,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:16:46,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 16:16:46,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-23 16:16:46,067 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 4 states. [2021-02-23 16:16:47,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:16:47,575 INFO L93 Difference]: Finished difference Result 448 states and 530 transitions. [2021-02-23 16:16:47,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-23 16:16:47,577 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2021-02-23 16:16:47,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:16:47,594 INFO L225 Difference]: With dead ends: 448 [2021-02-23 16:16:47,594 INFO L226 Difference]: Without dead ends: 292 [2021-02-23 16:16:47,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-23 16:16:47,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-02-23 16:16:47,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 245. [2021-02-23 16:16:47,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2021-02-23 16:16:47,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 264 transitions. [2021-02-23 16:16:47,818 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 264 transitions. Word has length 153 [2021-02-23 16:16:47,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:16:47,821 INFO L480 AbstractCegarLoop]: Abstraction has 245 states and 264 transitions. [2021-02-23 16:16:47,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 16:16:47,822 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 264 transitions. [2021-02-23 16:16:47,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-02-23 16:16:47,838 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:16:47,838 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] [2021-02-23 16:16:47,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 16:16:47,839 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:16:47,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:16:47,840 INFO L82 PathProgramCache]: Analyzing trace with hash -789792858, now seen corresponding path program 1 times [2021-02-23 16:16:47,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:16:47,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256284383] [2021-02-23 16:16:47,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:16:47,849 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:16:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:48,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:48,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:48,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:48,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:48,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:48,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:48,381 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:16:48,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:16:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:48,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:48,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:48,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:16:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:48,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:48,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:48,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:16:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:48,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:48,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:48,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:16:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:48,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:48,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:48,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:16:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:48,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:48,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:48,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:16:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:48,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:48,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:48,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-23 16:16:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:48,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:48,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:48,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-23 16:16:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:48,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:48,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:48,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:16:48,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256284383] [2021-02-23 16:16:48,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:16:48,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 16:16:48,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392527636] [2021-02-23 16:16:48,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 16:16:48,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:16:48,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 16:16:48,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-23 16:16:48,530 INFO L87 Difference]: Start difference. First operand 245 states and 264 transitions. Second operand 5 states. [2021-02-23 16:16:49,322 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:16:50,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:16:50,272 INFO L93 Difference]: Finished difference Result 372 states and 420 transitions. [2021-02-23 16:16:50,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 16:16:50,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2021-02-23 16:16:50,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:16:50,279 INFO L225 Difference]: With dead ends: 372 [2021-02-23 16:16:50,279 INFO L226 Difference]: Without dead ends: 281 [2021-02-23 16:16:50,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-23 16:16:50,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-02-23 16:16:50,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 235. [2021-02-23 16:16:50,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2021-02-23 16:16:50,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 251 transitions. [2021-02-23 16:16:50,379 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 251 transitions. Word has length 154 [2021-02-23 16:16:50,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:16:50,379 INFO L480 AbstractCegarLoop]: Abstraction has 235 states and 251 transitions. [2021-02-23 16:16:50,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 16:16:50,380 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 251 transitions. [2021-02-23 16:16:50,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-02-23 16:16:50,382 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:16:50,382 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] [2021-02-23 16:16:50,382 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 16:16:50,383 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:16:50,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:16:50,383 INFO L82 PathProgramCache]: Analyzing trace with hash -573358040, now seen corresponding path program 1 times [2021-02-23 16:16:50,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:16:50,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1122664455] [2021-02-23 16:16:50,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:16:50,387 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:16:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:50,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:50,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:50,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:50,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:50,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:16:50,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:50,840 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:16:50,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:16:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:50,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:50,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:16:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:50,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:50,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:16:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:50,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:50,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:16:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:50,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:50,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:16:50,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:16:50,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:16:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:50,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:50,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:16:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:50,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:50,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 16:16:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:50,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:50,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-23 16:16:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:50,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:50,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-23 16:16:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:50,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:50,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:16:51,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1122664455] [2021-02-23 16:16:51,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:16:51,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 16:16:51,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573717453] [2021-02-23 16:16:51,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 16:16:51,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:16:51,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 16:16:51,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-23 16:16:51,036 INFO L87 Difference]: Start difference. First operand 235 states and 251 transitions. Second operand 11 states. [2021-02-23 16:16:51,754 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:16:52,197 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:16:52,619 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-23 16:16:53,032 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:16:53,439 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 16:16:53,825 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:16:55,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:16:55,467 INFO L93 Difference]: Finished difference Result 419 states and 485 transitions. [2021-02-23 16:16:55,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 16:16:55,468 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2021-02-23 16:16:55,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:16:55,471 INFO L225 Difference]: With dead ends: 419 [2021-02-23 16:16:55,471 INFO L226 Difference]: Without dead ends: 304 [2021-02-23 16:16:55,473 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 [2021-02-23 16:16:55,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-02-23 16:16:55,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 235. [2021-02-23 16:16:55,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2021-02-23 16:16:55,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 250 transitions. [2021-02-23 16:16:55,586 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 250 transitions. Word has length 167 [2021-02-23 16:16:55,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:16:55,587 INFO L480 AbstractCegarLoop]: Abstraction has 235 states and 250 transitions. [2021-02-23 16:16:55,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 16:16:55,587 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 250 transitions. [2021-02-23 16:16:55,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-02-23 16:16:55,589 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:16:55,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:16:55,590 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 16:16:55,590 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:16:55,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:16:55,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1932921929, now seen corresponding path program 1 times [2021-02-23 16:16:55,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:16:55,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147049884] [2021-02-23 16:16:55,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:16:55,594 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:16:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:55,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:55,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:55,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:55,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:55,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:55,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:55,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:55,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:55,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:55,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:55,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:55,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:56,022 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:16:56,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:16:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:56,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:56,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:56,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:56,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:56,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:16:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:56,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:56,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:56,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:16:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:56,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:56,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:56,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:16:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:56,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:56,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:56,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:16:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:56,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:56,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:56,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:16:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:56,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:56,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:56,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 16:16:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:56,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:56,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:56,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-23 16:16:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:56,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:56,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:56,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:56,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:16:56,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:16:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:56,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:56,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:56,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-02-23 16:16:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:56,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:56,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:56,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-23 16:16:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:56,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:56,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:16:56,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:16:56,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147049884] [2021-02-23 16:16:56,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:16:56,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 16:16:56,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698866658] [2021-02-23 16:16:56,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 16:16:56,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:16:56,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 16:16:56,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 16:16:56,239 INFO L87 Difference]: Start difference. First operand 235 states and 250 transitions. Second operand 8 states. [2021-02-23 16:16:56,850 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:16:58,736 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:16:59,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:16:59,674 INFO L93 Difference]: Finished difference Result 598 states and 715 transitions. [2021-02-23 16:16:59,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 16:16:59,677 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2021-02-23 16:16:59,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:16:59,681 INFO L225 Difference]: With dead ends: 598 [2021-02-23 16:16:59,682 INFO L226 Difference]: Without dead ends: 483 [2021-02-23 16:16:59,683 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 [2021-02-23 16:16:59,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2021-02-23 16:16:59,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 342. [2021-02-23 16:16:59,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2021-02-23 16:16:59,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 369 transitions. [2021-02-23 16:16:59,841 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 369 transitions. Word has length 175 [2021-02-23 16:16:59,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:16:59,842 INFO L480 AbstractCegarLoop]: Abstraction has 342 states and 369 transitions. [2021-02-23 16:16:59,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 16:16:59,842 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 369 transitions. [2021-02-23 16:16:59,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-23 16:16:59,844 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:16:59,845 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] [2021-02-23 16:16:59,845 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 16:16:59,845 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:16:59,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:16:59,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1587362231, now seen corresponding path program 1 times [2021-02-23 16:16:59,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:16:59,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552442702] [2021-02-23 16:16:59,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:16:59,849 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:16:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:16:59,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:59,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:59,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:59,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:59,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:59,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:59,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:59,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:59,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:59,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:59,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:59,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:16:59,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:16:59,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,269 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:17:00,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:17:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:00,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:17:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:17:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:17:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:17:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:17:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 16:17:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-23 16:17:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:17:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 16:17:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 16:17:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-02-23 16:17:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:00,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:00,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-02-23 16:17:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:00,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:00,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:00,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:17:00,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552442702] [2021-02-23 16:17:00,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:17:00,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 16:17:00,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300372285] [2021-02-23 16:17:00,483 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 16:17:00,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:17:00,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 16:17:00,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-23 16:17:00,484 INFO L87 Difference]: Start difference. First operand 342 states and 369 transitions. Second operand 11 states. [2021-02-23 16:17:01,215 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:17:02,918 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:17:03,309 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 16:17:03,707 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:17:04,090 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 16:17:04,443 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:17:04,821 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:17:05,189 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:17:05,738 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:07,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:17:07,150 INFO L93 Difference]: Finished difference Result 989 states and 1216 transitions. [2021-02-23 16:17:07,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-23 16:17:07,151 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2021-02-23 16:17:07,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:17:07,162 INFO L225 Difference]: With dead ends: 989 [2021-02-23 16:17:07,162 INFO L226 Difference]: Without dead ends: 767 [2021-02-23 16:17:07,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2021-02-23 16:17:07,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2021-02-23 16:17:07,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 518. [2021-02-23 16:17:07,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2021-02-23 16:17:07,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 564 transitions. [2021-02-23 16:17:07,365 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 564 transitions. Word has length 199 [2021-02-23 16:17:07,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:17:07,366 INFO L480 AbstractCegarLoop]: Abstraction has 518 states and 564 transitions. [2021-02-23 16:17:07,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 16:17:07,366 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 564 transitions. [2021-02-23 16:17:07,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-02-23 16:17:07,369 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:17:07,370 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] [2021-02-23 16:17:07,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 16:17:07,370 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:17:07,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:17:07,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1727075809, now seen corresponding path program 1 times [2021-02-23 16:17:07,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:17:07,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851687418] [2021-02-23 16:17:07,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:17:07,374 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:17:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:07,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:07,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:07,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:07,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:07,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:07,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:07,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:07,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,776 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:17:07,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:17:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:07,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:17:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:17:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:17:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:17:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:17:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-23 16:17:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-23 16:17:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 16:17:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:07,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:17:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 16:17:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 16:17:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-02-23 16:17:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-02-23 16:17:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:07,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:07,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:07,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:07,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:08,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:17:08,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851687418] [2021-02-23 16:17:08,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:17:08,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-23 16:17:08,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725666665] [2021-02-23 16:17:08,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 16:17:08,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:17:08,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 16:17:08,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-02-23 16:17:08,075 INFO L87 Difference]: Start difference. First operand 518 states and 564 transitions. Second operand 12 states. [2021-02-23 16:17:08,749 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:17:10,562 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:17:10,924 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:17:11,310 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 16:17:11,701 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:17:12,209 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:17:12,673 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 16:17:13,056 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:17:13,483 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:14,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:17:14,726 INFO L93 Difference]: Finished difference Result 1295 states and 1574 transitions. [2021-02-23 16:17:14,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-23 16:17:14,726 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 204 [2021-02-23 16:17:14,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:17:14,734 INFO L225 Difference]: With dead ends: 1295 [2021-02-23 16:17:14,734 INFO L226 Difference]: Without dead ends: 897 [2021-02-23 16:17:14,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=434, Invalid=1206, Unknown=0, NotChecked=0, Total=1640 [2021-02-23 16:17:14,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2021-02-23 16:17:14,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 516. [2021-02-23 16:17:14,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2021-02-23 16:17:15,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 560 transitions. [2021-02-23 16:17:15,005 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 560 transitions. Word has length 204 [2021-02-23 16:17:15,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:17:15,006 INFO L480 AbstractCegarLoop]: Abstraction has 516 states and 560 transitions. [2021-02-23 16:17:15,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 16:17:15,006 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 560 transitions. [2021-02-23 16:17:15,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-02-23 16:17:15,009 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:17:15,010 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] [2021-02-23 16:17:15,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 16:17:15,010 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:17:15,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:17:15,011 INFO L82 PathProgramCache]: Analyzing trace with hash -234310238, now seen corresponding path program 1 times [2021-02-23 16:17:15,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:17:15,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1238368088] [2021-02-23 16:17:15,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:17:15,015 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:17:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,371 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:17:15,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:17:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:17:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:17:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:17:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:17:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:17:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-23 16:17:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-23 16:17:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 16:17:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:15,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:15,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:17:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:17:15,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:17:15,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:17:15,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 16:17:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 16:17:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-23 16:17:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-23 16:17:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:15,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:15,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:17:15,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1238368088] [2021-02-23 16:17:15,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:17:15,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-23 16:17:15,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731004995] [2021-02-23 16:17:15,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 16:17:15,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:17:15,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 16:17:15,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-02-23 16:17:15,632 INFO L87 Difference]: Start difference. First operand 516 states and 560 transitions. Second operand 12 states. [2021-02-23 16:17:17,131 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:17:17,473 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-23 16:17:17,849 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-23 16:17:18,183 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:18,576 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:17:18,936 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:20,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:17:20,846 INFO L93 Difference]: Finished difference Result 1303 states and 1596 transitions. [2021-02-23 16:17:20,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-23 16:17:20,847 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 205 [2021-02-23 16:17:20,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:17:20,854 INFO L225 Difference]: With dead ends: 1303 [2021-02-23 16:17:20,854 INFO L226 Difference]: Without dead ends: 907 [2021-02-23 16:17:20,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2021-02-23 16:17:20,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2021-02-23 16:17:21,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 532. [2021-02-23 16:17:21,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2021-02-23 16:17:21,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 576 transitions. [2021-02-23 16:17:21,129 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 576 transitions. Word has length 205 [2021-02-23 16:17:21,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:17:21,129 INFO L480 AbstractCegarLoop]: Abstraction has 532 states and 576 transitions. [2021-02-23 16:17:21,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 16:17:21,130 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 576 transitions. [2021-02-23 16:17:21,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-02-23 16:17:21,131 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:17:21,132 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] [2021-02-23 16:17:21,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 16:17:21,132 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:17:21,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:17:21,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1374104062, now seen corresponding path program 1 times [2021-02-23 16:17:21,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:17:21,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279133165] [2021-02-23 16:17:21,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:17:21,141 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:17:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:21,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:21,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,524 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:17:21,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:17:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:17:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:17:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:17:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:17:21,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:17:21,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:17:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:17:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-23 16:17:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-23 16:17:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 16:17:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:17:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:21,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:21,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 16:17:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:21,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:21,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 16:17:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-23 16:17:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-23 16:17:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:21,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:21,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:21,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:17:21,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279133165] [2021-02-23 16:17:21,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:17:21,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-23 16:17:21,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597945562] [2021-02-23 16:17:21,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-23 16:17:21,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:17:21,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-23 16:17:21,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-02-23 16:17:21,777 INFO L87 Difference]: Start difference. First operand 532 states and 576 transitions. Second operand 15 states. [2021-02-23 16:17:22,563 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:17:22,987 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-23 16:17:23,386 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:23,781 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:17:24,155 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:25,285 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:25,677 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:17:26,067 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:26,416 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:17:26,779 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:17:28,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:17:28,990 INFO L93 Difference]: Finished difference Result 1341 states and 1661 transitions. [2021-02-23 16:17:28,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-23 16:17:28,991 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 205 [2021-02-23 16:17:28,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:17:28,998 INFO L225 Difference]: With dead ends: 1341 [2021-02-23 16:17:28,999 INFO L226 Difference]: Without dead ends: 929 [2021-02-23 16:17:29,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2021-02-23 16:17:29,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2021-02-23 16:17:29,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 544. [2021-02-23 16:17:29,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2021-02-23 16:17:29,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 588 transitions. [2021-02-23 16:17:29,308 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 588 transitions. Word has length 205 [2021-02-23 16:17:29,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:17:29,308 INFO L480 AbstractCegarLoop]: Abstraction has 544 states and 588 transitions. [2021-02-23 16:17:29,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-23 16:17:29,309 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 588 transitions. [2021-02-23 16:17:29,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-02-23 16:17:29,310 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:17:29,311 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] [2021-02-23 16:17:29,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 16:17:29,311 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:17:29,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:17:29,312 INFO L82 PathProgramCache]: Analyzing trace with hash 789740543, now seen corresponding path program 1 times [2021-02-23 16:17:29,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:17:29,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133276934] [2021-02-23 16:17:29,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:17:29,316 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:17:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:29,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:29,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:29,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:29,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 16:17:29,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,701 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:17:29,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:17:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 16:17:29,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:17:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:17:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:17:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:17:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:17:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-23 16:17:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-23 16:17:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 16:17:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:29,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:17:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:17:29,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 16:17:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:17:29,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 16:17:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-23 16:17:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-23 16:17:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:29,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:29,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:29,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:17:29,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133276934] [2021-02-23 16:17:29,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:17:29,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 16:17:29,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076034029] [2021-02-23 16:17:29,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 16:17:29,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:17:29,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 16:17:29,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-02-23 16:17:29,934 INFO L87 Difference]: Start difference. First operand 544 states and 588 transitions. Second operand 9 states. [2021-02-23 16:17:30,616 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:17:31,422 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:17:35,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:17:35,843 INFO L93 Difference]: Finished difference Result 2030 states and 2577 transitions. [2021-02-23 16:17:35,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-23 16:17:35,844 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 205 [2021-02-23 16:17:35,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:17:35,855 INFO L225 Difference]: With dead ends: 2030 [2021-02-23 16:17:35,856 INFO L226 Difference]: Without dead ends: 1606 [2021-02-23 16:17:35,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=290, Invalid=1042, Unknown=0, NotChecked=0, Total=1332 [2021-02-23 16:17:35,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-02-23 16:17:36,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 962. [2021-02-23 16:17:36,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 962 states. [2021-02-23 16:17:36,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1068 transitions. [2021-02-23 16:17:36,445 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1068 transitions. Word has length 205 [2021-02-23 16:17:36,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:17:36,446 INFO L480 AbstractCegarLoop]: Abstraction has 962 states and 1068 transitions. [2021-02-23 16:17:36,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 16:17:36,446 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1068 transitions. [2021-02-23 16:17:36,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-23 16:17:36,449 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:17:36,449 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] [2021-02-23 16:17:36,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 16:17:36,450 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:17:36,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:17:36,450 INFO L82 PathProgramCache]: Analyzing trace with hash 345442833, now seen corresponding path program 1 times [2021-02-23 16:17:36,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:17:36,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021481580] [2021-02-23 16:17:36,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:17:36,453 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:17:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:36,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:36,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:36,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:36,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,831 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:17:36,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:17:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-23 16:17:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 16:17:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 16:17:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 16:17:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 16:17:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:17:36,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 16:17:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 16:17:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-23 16:17:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-02-23 16:17:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:17:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 16:17:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 16:17:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-02-23 16:17:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:36,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-02-23 16:17:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:17:36,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:36,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:37,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:17:37,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021481580] [2021-02-23 16:17:37,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:17:37,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 16:17:37,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198885268] [2021-02-23 16:17:37,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 16:17:37,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:17:37,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 16:17:37,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-02-23 16:17:37,026 INFO L87 Difference]: Start difference. First operand 962 states and 1068 transitions. Second operand 9 states. [2021-02-23 16:17:37,739 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:17:42,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:17:42,334 INFO L93 Difference]: Finished difference Result 2472 states and 3164 transitions. [2021-02-23 16:17:42,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-02-23 16:17:42,335 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 210 [2021-02-23 16:17:42,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:17:42,351 INFO L225 Difference]: With dead ends: 2472 [2021-02-23 16:17:42,351 INFO L226 Difference]: Without dead ends: 2469 [2021-02-23 16:17:42,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=297, Invalid=963, Unknown=0, NotChecked=0, Total=1260 [2021-02-23 16:17:42,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2021-02-23 16:17:43,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 1481. [2021-02-23 16:17:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1481 states. [2021-02-23 16:17:43,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 1660 transitions. [2021-02-23 16:17:43,120 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 1660 transitions. Word has length 210 [2021-02-23 16:17:43,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:17:43,121 INFO L480 AbstractCegarLoop]: Abstraction has 1481 states and 1660 transitions. [2021-02-23 16:17:43,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 16:17:43,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 1660 transitions. [2021-02-23 16:17:43,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-02-23 16:17:43,125 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:17:43,126 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] [2021-02-23 16:17:43,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 16:17:43,126 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:17:43,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:17:43,127 INFO L82 PathProgramCache]: Analyzing trace with hash -232438301, now seen corresponding path program 1 times [2021-02-23 16:17:43,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:17:43,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420484492] [2021-02-23 16:17:43,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:17:43,198 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-02-23 16:17:43,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:43,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:43,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:43,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:43,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:43,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:43,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:43,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:43,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:43,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:43,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:43,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:43,659 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2021-02-23 16:17:43,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:43,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-02-23 16:17:43,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:43,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:43,958 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2021-02-23 16:17:43,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:43,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-23 16:17:44,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,368 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2021-02-23 16:17:44,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-23 16:17:44,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:44,898 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2021-02-23 16:17:44,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:44,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-02-23 16:17:45,247 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2021-02-23 16:17:45,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-23 16:17:45,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:45,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:45,999 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2021-02-23 16:17:46,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:46,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-02-23 16:17:46,327 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2021-02-23 16:17:46,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:46,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-02-23 16:17:46,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:46,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:46,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:46,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:46,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:46,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:46,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:46,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:46,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:46,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:46,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:46,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:46,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:46,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:46,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:46,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:17:46,756 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2021-02-23 16:17:46,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:17:46,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-23 16:17:46,763 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 16:17:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:17:47,062 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:17:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:17:47,240 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:17:47,601 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 16:17:47,601 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 16:17:47,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 16:17:47,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 04:17:47 BoogieIcfgContainer [2021-02-23 16:17:47,631 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 16:17:47,632 INFO L168 Benchmark]: Toolchain (without parser) took 65906.84 ms. Allocated memory was 159.4 MB in the beginning and 767.6 MB in the end (delta: 608.2 MB). Free memory was 135.1 MB in the beginning and 293.1 MB in the end (delta: -158.0 MB). Peak memory consumption was 451.7 MB. Max. memory is 8.0 GB. [2021-02-23 16:17:47,632 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 159.4 MB. Free memory is still 132.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 16:17:47,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.50 ms. Allocated memory is still 159.4 MB. Free memory was 133.9 MB in the beginning and 113.2 MB in the end (delta: 20.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-23 16:17:47,632 INFO L168 Benchmark]: Boogie Preprocessor took 164.81 ms. Allocated memory is still 159.4 MB. Free memory was 113.2 MB in the beginning and 109.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 16:17:47,632 INFO L168 Benchmark]: RCFGBuilder took 2052.77 ms. Allocated memory was 159.4 MB in the beginning and 207.6 MB in the end (delta: 48.2 MB). Free memory was 109.3 MB in the beginning and 165.4 MB in the end (delta: -56.1 MB). Peak memory consumption was 52.0 MB. Max. memory is 8.0 GB. [2021-02-23 16:17:47,633 INFO L168 Benchmark]: TraceAbstraction took 63011.53 ms. Allocated memory was 207.6 MB in the beginning and 767.6 MB in the end (delta: 559.9 MB). Free memory was 164.9 MB in the beginning and 293.1 MB in the end (delta: -128.2 MB). Peak memory consumption was 432.3 MB. Max. memory is 8.0 GB. [2021-02-23 16:17:47,633 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 159.4 MB. Free memory is still 132.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 659.50 ms. Allocated memory is still 159.4 MB. Free memory was 133.9 MB in the beginning and 113.2 MB in the end (delta: 20.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 164.81 ms. Allocated memory is still 159.4 MB. Free memory was 113.2 MB in the beginning and 109.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2052.77 ms. Allocated memory was 159.4 MB in the beginning and 207.6 MB in the end (delta: 48.2 MB). Free memory was 109.3 MB in the beginning and 165.4 MB in the end (delta: -56.1 MB). Peak memory consumption was 52.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 63011.53 ms. Allocated memory was 207.6 MB in the beginning and 767.6 MB in the end (delta: 559.9 MB). Free memory was 164.9 MB in the beginning and 293.1 MB in the end (delta: -128.2 MB). Peak memory consumption was 432.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 251]: a call to reach_error is reachable a call to reach_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 TRUE waterLevel > 0 [L160] waterLevel = waterLevel - 1 [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] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 628 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 62.9s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 48.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2334 SDtfs, 8595 SDslu, 5101 SDs, 0 SdLazy, 9770 SolverSat, 2444 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 542 GetRequests, 300 SyntacticMatches, 2 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1724 ImplicationChecksByTransitivity, 22.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1481occurred 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: 2.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 3325 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...