/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:17:20,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:17:20,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:17:20,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:17:20,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:17:20,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:17:20,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:17:20,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:17:20,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:17:20,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:17:20,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:17:20,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:17:20,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:17:20,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:17:20,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:17:20,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:17:20,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:17:20,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:17:20,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:17:20,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:17:20,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:17:20,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:17:20,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:17:20,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:17:20,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 03:17:20,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:17:20,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:17:20,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:17:20,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:17:20,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:17:20,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:17:20,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:17:20,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:17:20,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:17:20,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:17:20,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:17:20,677 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:17:20,702 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:17:20,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:17:20,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:17:20,707 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:17:20,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:17:20,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:17:20,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:17:20,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:17:20,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:17:20,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:17:20,709 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:17:20,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:17:20,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:17:20,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:17:20,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:17:20,711 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:17:20,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:17:20,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:17:20,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:17:20,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:17:20,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:17:20,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:17:20,712 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:17:20,712 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:17:21,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:17:21,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:17:21,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:17:21,168 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:17:21,169 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:17:21,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2021-02-24 03:17:21,253 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5712c5276/21f2f118d6b34597a73fd9bb72aa213e/FLAG5431394fe [2021-02-24 03:17:21,912 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:17:21,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2021-02-24 03:17:21,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5712c5276/21f2f118d6b34597a73fd9bb72aa213e/FLAG5431394fe [2021-02-24 03:17:22,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5712c5276/21f2f118d6b34597a73fd9bb72aa213e [2021-02-24 03:17:22,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:17:22,191 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:17:22,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:17:22,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:17:22,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:17:22,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:17:22" (1/1) ... [2021-02-24 03:17:22,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a7b9c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:22, skipping insertion in model container [2021-02-24 03:17:22,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:17:22" (1/1) ... [2021-02-24 03:17:22,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:17:22,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:17:22,679 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_product41.cil.c[16717,16730] [2021-02-24 03:17:22,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:17:22,700 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:17:22,808 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_product41.cil.c[16717,16730] [2021-02-24 03:17:22,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:17:22,866 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:17:22,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:22 WrapperNode [2021-02-24 03:17:22,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:17:22,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:17:22,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:17:22,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:17:22,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:22" (1/1) ... [2021-02-24 03:17:22,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:22" (1/1) ... [2021-02-24 03:17:22,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:22" (1/1) ... [2021-02-24 03:17:22,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:22" (1/1) ... [2021-02-24 03:17:22,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:22" (1/1) ... [2021-02-24 03:17:23,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:22" (1/1) ... [2021-02-24 03:17:23,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:22" (1/1) ... [2021-02-24 03:17:23,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:17:23,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:17:23,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:17:23,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:17:23,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:22" (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 [2021-02-24 03:17:23,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:17:23,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:17:23,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:17:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:17:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2021-02-24 03:17:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2021-02-24 03:17:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:17:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:17:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:17:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:17:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:17:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:17:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:17:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-24 03:17:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:17:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2021-02-24 03:17:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:17:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:17:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:17:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:17:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:17:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-24 03:17:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:17:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:17:23,162 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:17:23,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:17:23,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:17:23,162 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:17:23,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-24 03:17:23,163 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:17:23,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:17:23,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:17:23,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:17:23,163 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:17:23,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:17:23,164 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:17:23,164 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:17:23,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:17:23,164 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:17:23,164 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:17:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:17:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:17:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:17:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:17:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:17:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:17:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:17:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:17:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:17:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2021-02-24 03:17:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2021-02-24 03:17:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:17:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:17:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:17:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:17:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:17:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:17:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:17:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:17:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:17:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:17:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:17:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:17:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:17:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:17:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:17:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:17:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:17:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-24 03:17:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:17:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:17:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:17:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:17:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:17:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-24 03:17:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-24 03:17:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2021-02-24 03:17:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:17:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:17:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:17:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:17:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:17:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:17:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:17:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:17:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:17:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:17:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:17:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:17:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:17:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:17:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:17:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:17:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:17:24,337 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:17:24,337 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:17:24,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:17:24 BoogieIcfgContainer [2021-02-24 03:17:24,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:17:24,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:17:24,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:17:24,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:17:24,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:17:22" (1/3) ... [2021-02-24 03:17:24,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fee4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:17:24, skipping insertion in model container [2021-02-24 03:17:24,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:17:22" (2/3) ... [2021-02-24 03:17:24,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fee4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:17:24, skipping insertion in model container [2021-02-24 03:17:24,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:17:24" (3/3) ... [2021-02-24 03:17:24,353 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2021-02-24 03:17:24,364 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:17:24,371 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:17:24,391 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:17:24,422 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:17:24,422 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:17:24,423 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:17:24,424 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:17:24,424 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:17:24,424 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:17:24,424 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:17:24,425 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:17:24,460 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2021-02-24 03:17:24,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-02-24 03:17:24,480 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:17:24,481 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] [2021-02-24 03:17:24,481 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:17:24,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:17:24,488 INFO L82 PathProgramCache]: Analyzing trace with hash 219928465, now seen corresponding path program 1 times [2021-02-24 03:17:24,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:17:24,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510319525] [2021-02-24 03:17:24,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:17:24,568 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:17:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:24,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:24,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:24,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:24,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:25,194 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:17:25,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:17:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:25,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:25,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:25,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:17:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:25,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:25,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:25,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:17:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:25,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:25,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:25,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:17:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:25,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:25,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:25,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:17:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:25,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:25,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:25,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:17:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:25,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:25,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:25,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-24 03:17:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:25,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:25,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:25,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-24 03:17:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:25,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:25,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:17:25,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510319525] [2021-02-24 03:17:25,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:17:25,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:17:25,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992384021] [2021-02-24 03:17:25,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:17:25,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:17:25,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:17:25,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:17:25,433 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 4 states. [2021-02-24 03:17:26,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:17:26,926 INFO L93 Difference]: Finished difference Result 474 states and 558 transitions. [2021-02-24 03:17:26,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 03:17:26,928 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2021-02-24 03:17:26,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:17:26,944 INFO L225 Difference]: With dead ends: 474 [2021-02-24 03:17:26,944 INFO L226 Difference]: Without dead ends: 305 [2021-02-24 03:17:26,950 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:17:26,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-02-24 03:17:27,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 258. [2021-02-24 03:17:27,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2021-02-24 03:17:27,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 279 transitions. [2021-02-24 03:17:27,134 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 279 transitions. Word has length 153 [2021-02-24 03:17:27,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:17:27,135 INFO L480 AbstractCegarLoop]: Abstraction has 258 states and 279 transitions. [2021-02-24 03:17:27,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:17:27,135 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 279 transitions. [2021-02-24 03:17:27,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-02-24 03:17:27,140 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:17:27,140 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] [2021-02-24 03:17:27,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:17:27,141 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:17:27,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:17:27,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1788341931, now seen corresponding path program 1 times [2021-02-24 03:17:27,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:17:27,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1122246250] [2021-02-24 03:17:27,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:17:27,147 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:17:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:27,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:27,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:27,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:27,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:27,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:27,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:27,639 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:17:27,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:17:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:27,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:27,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:27,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:17:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:27,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:27,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:27,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:17:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:27,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:27,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:27,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:17:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:27,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:27,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:27,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:17:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:27,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:27,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:27,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:17:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:27,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:27,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:27,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-24 03:17:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:27,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:27,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:27,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-24 03:17:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:27,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:27,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:27,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:17:27,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1122246250] [2021-02-24 03:17:27,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:17:27,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 03:17:27,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691345490] [2021-02-24 03:17:27,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 03:17:27,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:17:27,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 03:17:27,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 03:17:27,778 INFO L87 Difference]: Start difference. First operand 258 states and 279 transitions. Second operand 5 states. [2021-02-24 03:17:28,613 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:29,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:17:29,698 INFO L93 Difference]: Finished difference Result 402 states and 452 transitions. [2021-02-24 03:17:29,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 03:17:29,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2021-02-24 03:17:29,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:17:29,703 INFO L225 Difference]: With dead ends: 402 [2021-02-24 03:17:29,704 INFO L226 Difference]: Without dead ends: 294 [2021-02-24 03:17:29,706 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 [2021-02-24 03:17:29,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-02-24 03:17:29,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 248. [2021-02-24 03:17:29,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2021-02-24 03:17:29,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 266 transitions. [2021-02-24 03:17:29,809 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 266 transitions. Word has length 154 [2021-02-24 03:17:29,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:17:29,810 INFO L480 AbstractCegarLoop]: Abstraction has 248 states and 266 transitions. [2021-02-24 03:17:29,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 03:17:29,810 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 266 transitions. [2021-02-24 03:17:29,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-02-24 03:17:29,813 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:17:29,813 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] [2021-02-24 03:17:29,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:17:29,814 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:17:29,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:17:29,814 INFO L82 PathProgramCache]: Analyzing trace with hash -349760789, now seen corresponding path program 1 times [2021-02-24 03:17:29,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:17:29,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198490431] [2021-02-24 03:17:29,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:17:29,819 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:17:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:29,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:29,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:29,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:29,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:29,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:29,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:29,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:29,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:17:29,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:29,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:30,278 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:17:30,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:17:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:30,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:30,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:30,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:30,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:17:30,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:17:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:30,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:30,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:30,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:17:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:30,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:30,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:30,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:17:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:30,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:30,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:30,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:30,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:17:30,412 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:17:30,413 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:17:30,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:17:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:30,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:30,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:30,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:17:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:30,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:30,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:30,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-24 03:17:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:30,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:30,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:30,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-24 03:17:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:30,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:30,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:17:30,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198490431] [2021-02-24 03:17:30,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:17:30,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:17:30,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137421045] [2021-02-24 03:17:30,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:17:30,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:17:30,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:17:30,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:17:30,512 INFO L87 Difference]: Start difference. First operand 248 states and 266 transitions. Second operand 10 states. [2021-02-24 03:17:31,202 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:17:31,652 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:17:32,025 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:17:32,436 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:32,875 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:17:33,252 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:34,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:17:34,767 INFO L93 Difference]: Finished difference Result 422 states and 478 transitions. [2021-02-24 03:17:34,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 03:17:34,769 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2021-02-24 03:17:34,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:17:34,775 INFO L225 Difference]: With dead ends: 422 [2021-02-24 03:17:34,775 INFO L226 Difference]: Without dead ends: 294 [2021-02-24 03:17:34,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-02-24 03:17:34,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-02-24 03:17:34,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 248. [2021-02-24 03:17:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2021-02-24 03:17:34,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 265 transitions. [2021-02-24 03:17:34,908 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 265 transitions. Word has length 163 [2021-02-24 03:17:34,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:17:34,908 INFO L480 AbstractCegarLoop]: Abstraction has 248 states and 265 transitions. [2021-02-24 03:17:34,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:17:34,909 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 265 transitions. [2021-02-24 03:17:34,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-02-24 03:17:34,911 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:17:34,911 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] [2021-02-24 03:17:34,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:17:34,914 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:17:34,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:17:34,915 INFO L82 PathProgramCache]: Analyzing trace with hash -337129330, now seen corresponding path program 1 times [2021-02-24 03:17:34,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:17:34,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162003770] [2021-02-24 03:17:34,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:17:34,921 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:17:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:35,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:35,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:35,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:35,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:35,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:35,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:35,341 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:17:35,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:17:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:35,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:35,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:35,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:17:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:35,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:35,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:17:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:35,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:35,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:17:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:35,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:35,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:17:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:35,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:35,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:17:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:35,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:35,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:17:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:35,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:35,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:17:35,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:17:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:35,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:35,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-02-24 03:17:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:35,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:35,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-02-24 03:17:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:35,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:35,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:35,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:17:35,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [162003770] [2021-02-24 03:17:35,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:17:35,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 03:17:35,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239573246] [2021-02-24 03:17:35,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 03:17:35,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:17:35,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 03:17:35,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-24 03:17:35,563 INFO L87 Difference]: Start difference. First operand 248 states and 265 transitions. Second operand 7 states. [2021-02-24 03:17:36,139 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:17:37,801 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:38,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:17:38,573 INFO L93 Difference]: Finished difference Result 552 states and 633 transitions. [2021-02-24 03:17:38,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 03:17:38,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2021-02-24 03:17:38,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:17:38,579 INFO L225 Difference]: With dead ends: 552 [2021-02-24 03:17:38,579 INFO L226 Difference]: Without dead ends: 424 [2021-02-24 03:17:38,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-02-24 03:17:38,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2021-02-24 03:17:38,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 353. [2021-02-24 03:17:38,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2021-02-24 03:17:38,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 382 transitions. [2021-02-24 03:17:38,722 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 382 transitions. Word has length 171 [2021-02-24 03:17:38,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:17:38,723 INFO L480 AbstractCegarLoop]: Abstraction has 353 states and 382 transitions. [2021-02-24 03:17:38,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 03:17:38,723 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 382 transitions. [2021-02-24 03:17:38,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-02-24 03:17:38,726 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:17:38,726 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] [2021-02-24 03:17:38,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:17:38,727 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:17:38,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:17:38,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1594685458, now seen corresponding path program 1 times [2021-02-24 03:17:38,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:17:38,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657004099] [2021-02-24 03:17:38,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:17:38,731 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:17:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:38,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:38,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:38,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:38,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:38,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:38,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,114 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:17:39,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:17:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:17:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:17:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:17:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:17:39,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:17:39,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:17:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:17:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:17:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:17:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:39,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:39,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:17:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:39,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:39,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:17:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 03:17:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-24 03:17:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:39,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:39,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:17:39,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657004099] [2021-02-24 03:17:39,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:17:39,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 03:17:39,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307137035] [2021-02-24 03:17:39,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 03:17:39,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:17:39,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 03:17:39,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-02-24 03:17:39,365 INFO L87 Difference]: Start difference. First operand 353 states and 382 transitions. Second operand 13 states. [2021-02-24 03:17:40,093 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:40,488 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:17:40,849 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:41,221 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:17:41,589 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:42,579 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:42,956 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:17:43,341 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:43,726 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:17:44,090 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:45,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:17:45,238 INFO L93 Difference]: Finished difference Result 662 states and 760 transitions. [2021-02-24 03:17:45,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-24 03:17:45,240 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 195 [2021-02-24 03:17:45,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:17:45,244 INFO L225 Difference]: With dead ends: 662 [2021-02-24 03:17:45,244 INFO L226 Difference]: Without dead ends: 429 [2021-02-24 03:17:45,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2021-02-24 03:17:45,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-02-24 03:17:45,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 359. [2021-02-24 03:17:45,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2021-02-24 03:17:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 388 transitions. [2021-02-24 03:17:45,385 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 388 transitions. Word has length 195 [2021-02-24 03:17:45,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:17:45,385 INFO L480 AbstractCegarLoop]: Abstraction has 359 states and 388 transitions. [2021-02-24 03:17:45,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 03:17:45,385 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 388 transitions. [2021-02-24 03:17:45,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-02-24 03:17:45,388 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:17:45,388 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] [2021-02-24 03:17:45,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:17:45,389 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:17:45,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:17:45,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1278040974, now seen corresponding path program 1 times [2021-02-24 03:17:45,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:17:45,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120284365] [2021-02-24 03:17:45,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:17:45,392 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:17:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:45,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:45,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:45,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:45,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:45,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:45,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:45,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:45,815 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:17:45,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:17:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:45,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:45,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:45,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:17:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:45,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:45,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:17:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:45,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:45,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:17:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:45,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:45,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:17:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:45,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:45,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:17:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:45,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:45,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:17:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:45,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:45,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:17:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:45,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:45,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:17:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:45,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:45,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:17:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:45,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:45,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-24 03:17:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:45,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:45,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:45,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:45,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-24 03:17:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:45,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:45,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:46,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:17:46,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120284365] [2021-02-24 03:17:46,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:17:46,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:17:46,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340465336] [2021-02-24 03:17:46,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:17:46,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:17:46,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:17:46,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:17:46,034 INFO L87 Difference]: Start difference. First operand 359 states and 388 transitions. Second operand 10 states. [2021-02-24 03:17:46,650 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:17:48,150 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:48,530 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:17:48,981 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:17:49,342 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:50,095 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:50,467 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:17:50,824 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:51,288 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:52,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:17:52,341 INFO L93 Difference]: Finished difference Result 901 states and 1048 transitions. [2021-02-24 03:17:52,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-24 03:17:52,341 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2021-02-24 03:17:52,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:17:52,372 INFO L225 Difference]: With dead ends: 901 [2021-02-24 03:17:52,372 INFO L226 Difference]: Without dead ends: 662 [2021-02-24 03:17:52,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2021-02-24 03:17:52,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-02-24 03:17:52,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 552. [2021-02-24 03:17:52,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2021-02-24 03:17:52,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 602 transitions. [2021-02-24 03:17:52,637 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 602 transitions. Word has length 195 [2021-02-24 03:17:52,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:17:52,638 INFO L480 AbstractCegarLoop]: Abstraction has 552 states and 602 transitions. [2021-02-24 03:17:52,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:17:52,638 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 602 transitions. [2021-02-24 03:17:52,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-24 03:17:52,641 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:17:52,641 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] [2021-02-24 03:17:52,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 03:17:52,642 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:17:52,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:17:52,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1563246803, now seen corresponding path program 1 times [2021-02-24 03:17:52,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:17:52,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506056586] [2021-02-24 03:17:52,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:17:52,646 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:17:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:52,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:52,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:52,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:52,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:52,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:52,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:52,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:52,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:52,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:52,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:52,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:52,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:52,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:52,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:52,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:52,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:52,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:52,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:53,009 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:17:53,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:17:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:53,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:53,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:53,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:17:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:53,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:53,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:17:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:53,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:53,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:17:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:53,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:53,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:17:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:53,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:53,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:17:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:53,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:53,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-24 03:17:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:53,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:53,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-24 03:17:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:53,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:53,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:53,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:17:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:53,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:53,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:17:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:53,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:53,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:17:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:53,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:53,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-24 03:17:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:53,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:53,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-02-24 03:17:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:53,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:53,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:53,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:53,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:17:53,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:17:53,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506056586] [2021-02-24 03:17:53,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:17:53,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-24 03:17:53,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763522954] [2021-02-24 03:17:53,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-24 03:17:53,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:17:53,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-24 03:17:53,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:17:53,263 INFO L87 Difference]: Start difference. First operand 552 states and 602 transitions. Second operand 11 states. [2021-02-24 03:17:53,903 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:17:55,673 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:17:56,017 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:56,471 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:17:57,643 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:58,009 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:17:58,417 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:58,803 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:17:59,164 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:17:59,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:17:59,523 INFO L93 Difference]: Finished difference Result 1155 states and 1330 transitions. [2021-02-24 03:17:59,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-24 03:17:59,523 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 200 [2021-02-24 03:17:59,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:17:59,529 INFO L225 Difference]: With dead ends: 1155 [2021-02-24 03:17:59,529 INFO L226 Difference]: Without dead ends: 723 [2021-02-24 03:17:59,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=256, Invalid=674, Unknown=0, NotChecked=0, Total=930 [2021-02-24 03:17:59,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-02-24 03:17:59,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 550. [2021-02-24 03:17:59,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2021-02-24 03:17:59,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 598 transitions. [2021-02-24 03:17:59,749 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 598 transitions. Word has length 200 [2021-02-24 03:17:59,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:17:59,749 INFO L480 AbstractCegarLoop]: Abstraction has 550 states and 598 transitions. [2021-02-24 03:17:59,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-24 03:17:59,750 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 598 transitions. [2021-02-24 03:17:59,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-02-24 03:17:59,752 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:17:59,752 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:17:59,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 03:17:59,753 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:17:59,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:17:59,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1123527417, now seen corresponding path program 1 times [2021-02-24 03:17:59,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:17:59,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147220579] [2021-02-24 03:17:59,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:17:59,757 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:17:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:17:59,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:59,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:17:59,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:17:59,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,117 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:18:00,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:18:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:18:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:18:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:18:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:18:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:18:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-24 03:18:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-24 03:18:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:00,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:00,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:18:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:00,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:00,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:00,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:18:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:18:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:18:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:18:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-24 03:18:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-02-24 03:18:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-02-24 03:18:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:00,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:00,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:00,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:18:00,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147220579] [2021-02-24 03:18:00,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:18:00,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-24 03:18:00,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472385395] [2021-02-24 03:18:00,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-24 03:18:00,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:18:00,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-24 03:18:00,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:18:00,331 INFO L87 Difference]: Start difference. First operand 550 states and 598 transitions. Second operand 11 states. [2021-02-24 03:18:01,719 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:18:02,103 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:18:02,497 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-24 03:18:02,885 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:18:03,257 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:03,610 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:18:05,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:18:05,068 INFO L93 Difference]: Finished difference Result 1167 states and 1363 transitions. [2021-02-24 03:18:05,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 03:18:05,069 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 223 [2021-02-24 03:18:05,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:18:05,074 INFO L225 Difference]: With dead ends: 1167 [2021-02-24 03:18:05,074 INFO L226 Difference]: Without dead ends: 737 [2021-02-24 03:18:05,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-02-24 03:18:05,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-02-24 03:18:05,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 566. [2021-02-24 03:18:05,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2021-02-24 03:18:05,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 614 transitions. [2021-02-24 03:18:05,337 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 614 transitions. Word has length 223 [2021-02-24 03:18:05,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:18:05,338 INFO L480 AbstractCegarLoop]: Abstraction has 566 states and 614 transitions. [2021-02-24 03:18:05,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-24 03:18:05,338 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 614 transitions. [2021-02-24 03:18:05,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-02-24 03:18:05,341 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:18:05,341 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:18:05,341 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 03:18:05,341 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:18:05,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:18:05,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1942855062, now seen corresponding path program 1 times [2021-02-24 03:18:05,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:18:05,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [145267273] [2021-02-24 03:18:05,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:18:05,345 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:18:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:05,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:05,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:05,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:05,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:18:05,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,706 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:18:05,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:18:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:18:05,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:18:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:18:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:18:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:18:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:18:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-02-24 03:18:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-24 03:18:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:05,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:18:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:18:05,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:18:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:18:05,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:18:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:18:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:18:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-24 03:18:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-02-24 03:18:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-02-24 03:18:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:05,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:05,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:05,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:18:05,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [145267273] [2021-02-24 03:18:05,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:18:05,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 03:18:05,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580425406] [2021-02-24 03:18:05,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 03:18:05,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:18:05,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 03:18:05,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-24 03:18:05,915 INFO L87 Difference]: Start difference. First operand 566 states and 614 transitions. Second operand 8 states. [2021-02-24 03:18:06,537 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:18:07,299 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:18:09,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:18:09,806 INFO L93 Difference]: Finished difference Result 1638 states and 1956 transitions. [2021-02-24 03:18:09,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-24 03:18:09,806 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 223 [2021-02-24 03:18:09,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:18:09,814 INFO L225 Difference]: With dead ends: 1638 [2021-02-24 03:18:09,814 INFO L226 Difference]: Without dead ends: 1192 [2021-02-24 03:18:09,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2021-02-24 03:18:09,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2021-02-24 03:18:10,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 960. [2021-02-24 03:18:10,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 960 states. [2021-02-24 03:18:10,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1070 transitions. [2021-02-24 03:18:10,351 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1070 transitions. Word has length 223 [2021-02-24 03:18:10,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:18:10,352 INFO L480 AbstractCegarLoop]: Abstraction has 960 states and 1070 transitions. [2021-02-24 03:18:10,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 03:18:10,352 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1070 transitions. [2021-02-24 03:18:10,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-02-24 03:18:10,355 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:18:10,355 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:18:10,355 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 03:18:10,356 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:18:10,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:18:10,356 INFO L82 PathProgramCache]: Analyzing trace with hash -945017396, now seen corresponding path program 1 times [2021-02-24 03:18:10,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:18:10,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638434148] [2021-02-24 03:18:10,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:18:10,359 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:18:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:10,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:10,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:10,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:18:10,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,766 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:18:10,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:18:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:10,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-02-24 03:18:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:10,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-24 03:18:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:10,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 03:18:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:10,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:10,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:10,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-24 03:18:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:10,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-24 03:18:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:10,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:18:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:10,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:18:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:10,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:10,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-24 03:18:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:10,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:18:10,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 03:18:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:10,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 03:18:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:10,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-24 03:18:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:10,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:10,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:10,969 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-24 03:18:10,970 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-24 03:18:10,997 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-24 03:18:10,998 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-24 03:18:11,027 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-24 03:18:11,028 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-24 03:18:11,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:18:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:11,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:11,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:11,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:11,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:11,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:11,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:11,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:11,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:11,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-24 03:18:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:11,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:11,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:11,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:11,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:11,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:11,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:18:11,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-24 03:18:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:11,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:11,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:11,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-02-24 03:18:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:11,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:11,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:11,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-02-24 03:18:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:18:11,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:11,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:18:11,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:18:11,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638434148] [2021-02-24 03:18:11,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:18:11,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-02-24 03:18:11,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60293527] [2021-02-24 03:18:11,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-02-24 03:18:11,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:18:11,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-02-24 03:18:11,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2021-02-24 03:18:11,282 INFO L87 Difference]: Start difference. First operand 960 states and 1070 transitions. Second operand 21 states. [2021-02-24 03:18:11,964 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:18:12,453 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:18:12,853 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:18:13,215 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:13,618 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:18:13,991 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:15,079 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:18:16,524 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:16,948 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-24 03:18:17,437 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:17,892 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:18,294 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-24 03:18:18,720 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-24 03:18:19,102 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:19,525 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-24 03:18:19,993 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:20,503 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-24 03:18:20,921 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:18:21,387 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-02-24 03:18:22,264 WARN L202 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2021-02-24 03:18:23,150 WARN L202 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 211 [2021-02-24 03:18:23,982 WARN L202 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2021-02-24 03:18:26,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:18:26,360 INFO L93 Difference]: Finished difference Result 1984 states and 2297 transitions. [2021-02-24 03:18:26,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-02-24 03:18:26,361 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 228 [2021-02-24 03:18:26,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:18:26,368 INFO L225 Difference]: With dead ends: 1984 [2021-02-24 03:18:26,368 INFO L226 Difference]: Without dead ends: 1144 [2021-02-24 03:18:26,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 923 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=726, Invalid=3056, Unknown=0, NotChecked=0, Total=3782 [2021-02-24 03:18:26,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2021-02-24 03:18:26,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 923. [2021-02-24 03:18:26,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2021-02-24 03:18:26,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1017 transitions. [2021-02-24 03:18:26,917 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1017 transitions. Word has length 228 [2021-02-24 03:18:26,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:18:26,918 INFO L480 AbstractCegarLoop]: Abstraction has 923 states and 1017 transitions. [2021-02-24 03:18:26,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2021-02-24 03:18:26,918 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1017 transitions. [2021-02-24 03:18:26,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-02-24 03:18:26,921 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:18:26,922 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:18:26,922 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 03:18:26,922 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:18:26,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:18:26,923 INFO L82 PathProgramCache]: Analyzing trace with hash 387000743, now seen corresponding path program 1 times [2021-02-24 03:18:26,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:18:26,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237847995] [2021-02-24 03:18:26,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:18:27,000 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,022 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,031 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,036 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,091 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:18:27,101 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:18:27,105 WARN L141 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-02-24 03:18:27,108 WARN L147 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size 42 [2021-02-24 03:18:27,112 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,117 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,120 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,125 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,173 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:18:27,174 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:18:27,177 WARN L141 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-02-24 03:18:27,179 WARN L147 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size 42 [2021-02-24 03:18:27,182 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,187 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,190 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,194 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,240 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:18:27,242 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:18:27,244 WARN L141 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-02-24 03:18:27,246 WARN L147 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size 42 [2021-02-24 03:18:27,249 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,253 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,256 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,260 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,307 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:18:27,309 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:18:27,311 WARN L141 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-02-24 03:18:27,313 WARN L147 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size 42 [2021-02-24 03:18:27,315 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,319 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,322 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,326 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,374 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:18:27,375 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:18:27,378 WARN L141 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-02-24 03:18:27,379 WARN L147 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size 42 [2021-02-24 03:18:27,382 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,386 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,389 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,393 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,440 WARN L141 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size [2021-02-24 03:18:27,444 INFO L723 QuantifierPusher]: Distributing 11 disjuncts over 3 conjuncts [2021-02-24 03:18:27,450 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:27,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:18:27,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:27,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-02-24 03:18:27,464 WARN L147 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size 46 [2021-02-24 03:18:27,470 WARN L141 QuantifierPusher]: treesize reduction 20, result has 85.8 percent of original size [2021-02-24 03:18:27,475 WARN L147 QuantifierPusher]: treesize reduction 20, result has 85.8 percent of original size 121 [2021-02-24 03:18:27,478 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,482 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,485 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,488 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,535 WARN L141 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size [2021-02-24 03:18:27,537 INFO L723 QuantifierPusher]: Distributing 11 disjuncts over 3 conjuncts [2021-02-24 03:18:27,539 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:27,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:18:27,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:18:27,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-02-24 03:18:27,549 WARN L147 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size 46 [2021-02-24 03:18:27,555 WARN L141 QuantifierPusher]: treesize reduction 20, result has 85.8 percent of original size [2021-02-24 03:18:27,560 WARN L147 QuantifierPusher]: treesize reduction 20, result has 85.8 percent of original size 121 [2021-02-24 03:18:27,562 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,566 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,569 WARN L141 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size [2021-02-24 03:18:27,572 WARN L147 QuantifierPusher]: treesize reduction 8, result has 90.1 percent of original size 73 [2021-02-24 03:18:27,619 WARN L141 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size [2021-02-24 03:18:27,620 WARN L147 QuantifierPusher]: treesize reduction 44, result has 15.4 percent of original size 8 [2021-02-24 03:18:27,622 WARN L141 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-02-24 03:18:27,624 WARN L147 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size 42 [2021-02-24 03:18:27,624 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 03:18:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:18:27,710 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:18:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:18:27,791 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:18:28,011 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:18:28,011 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:18:28,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-24 03:18:28,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:18:28 BoogieIcfgContainer [2021-02-24 03:18:28,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:18:28,040 INFO L168 Benchmark]: Toolchain (without parser) took 65862.67 ms. Allocated memory was 154.1 MB in the beginning and 683.7 MB in the end (delta: 529.5 MB). Free memory was 128.4 MB in the beginning and 378.7 MB in the end (delta: -250.3 MB). Peak memory consumption was 279.4 MB. Max. memory is 8.0 GB. [2021-02-24 03:18:28,040 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 154.1 MB. Free memory is still 127.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:18:28,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.46 ms. Allocated memory is still 154.1 MB. Free memory was 127.4 MB in the beginning and 106.8 MB in the end (delta: 20.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-24 03:18:28,040 INFO L168 Benchmark]: Boogie Preprocessor took 179.35 ms. Allocated memory is still 154.1 MB. Free memory was 106.8 MB in the beginning and 135.7 MB in the end (delta: -28.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. [2021-02-24 03:18:28,041 INFO L168 Benchmark]: RCFGBuilder took 1277.44 ms. Allocated memory was 154.1 MB in the beginning and 188.7 MB in the end (delta: 34.6 MB). Free memory was 135.7 MB in the beginning and 127.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 66.3 MB. Max. memory is 8.0 GB. [2021-02-24 03:18:28,041 INFO L168 Benchmark]: TraceAbstraction took 63693.90 ms. Allocated memory was 188.7 MB in the beginning and 683.7 MB in the end (delta: 494.9 MB). Free memory was 127.2 MB in the beginning and 378.7 MB in the end (delta: -251.5 MB). Peak memory consumption was 242.9 MB. Max. memory is 8.0 GB. [2021-02-24 03:18:28,042 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 154.1 MB. Free memory is still 127.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 671.46 ms. Allocated memory is still 154.1 MB. Free memory was 127.4 MB in the beginning and 106.8 MB in the end (delta: 20.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 179.35 ms. Allocated memory is still 154.1 MB. Free memory was 106.8 MB in the beginning and 135.7 MB in the end (delta: -28.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1277.44 ms. Allocated memory was 154.1 MB in the beginning and 188.7 MB in the end (delta: 34.6 MB). Free memory was 135.7 MB in the beginning and 127.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 66.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 63693.90 ms. Allocated memory was 188.7 MB in the beginning and 683.7 MB in the end (delta: 494.9 MB). Free memory was 127.2 MB in the beginning and 378.7 MB in the end (delta: -251.5 MB). Peak memory consumption was 242.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 832]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L45] int methAndRunningLastTime ; [L253] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L457] int pumpRunning = 0; [L458] int systemActive = 1; [L630] int waterLevel = 1; [L631] int methaneLevelCritical = 0; [L837] int cleanupTimeShifts = 4; [L911] int retValue_acc ; [L912] int tmp ; [L916] FCALL select_helpers() [L917] FCALL select_features() [L918] CALL, EXPR valid_product() [L819] int retValue_acc ; [L822] retValue_acc = 1 [L823] return (retValue_acc); [L918] RET, EXPR valid_product() [L918] tmp = valid_product() [L920] COND TRUE \read(tmp) [L922] FCALL setup() [L923] CALL runTest() [L904] CALL __utac_acc__Specification2_spec__1() [L50] methAndRunningLastTime = 0 [L904] RET __utac_acc__Specification2_spec__1() [L905] CALL test() [L726] int splverifierCounter ; [L727] int tmp ; [L728] int tmp___0 ; [L729] int tmp___1 ; [L730] int tmp___2 ; [L733] splverifierCounter = 0 [L735] COND TRUE 1 [L737] COND TRUE splverifierCounter < 4 [L743] tmp = __VERIFIER_nondet_int() [L745] COND TRUE \read(tmp) [L747] CALL waterRise() [L648] COND TRUE waterLevel < 2 [L649] waterLevel = waterLevel + 1 [L747] RET waterRise() [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) [L778] CALL timeShift() [L464] COND FALSE !(\read(pumpRunning)) [L471] COND TRUE \read(systemActive) [L473] CALL processEnvironment() [L493] int tmp ; [L496] COND TRUE ! pumpRunning [L498] CALL, EXPR isHighWaterLevel() [L608] int retValue_acc ; [L609] int tmp ; [L610] int tmp___0 ; [L614] CALL, EXPR isHighWaterSensorDry() [L710] int retValue_acc ; [L713] COND FALSE !(waterLevel < 2) [L717] retValue_acc = 0 [L718] return (retValue_acc); [L614] RET, EXPR isHighWaterSensorDry() [L614] tmp = isHighWaterSensorDry() [L616] COND FALSE !(\read(tmp)) [L619] tmp___0 = 1 [L621] retValue_acc = tmp___0 [L622] return (retValue_acc); [L498] RET, EXPR isHighWaterLevel() [L498] tmp = isHighWaterLevel() [L500] COND TRUE \read(tmp) [L502] CALL activatePump() [L527] int tmp ; [L531] CALL, EXPR isMethaneAlarm() [L552] int retValue_acc ; [L556] CALL, EXPR isMethaneLevelCritical() [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); [L556] RET, EXPR isMethaneLevelCritical() [L556] retValue_acc = isMethaneLevelCritical() [L558] return (retValue_acc); [L531] RET, EXPR isMethaneAlarm() [L531] tmp = isMethaneAlarm() [L533] COND FALSE !(\read(tmp)) [L537] CALL activatePump__wrappee__highWaterSensor() [L521] pumpRunning = 1 [L537] RET activatePump__wrappee__highWaterSensor() [L502] RET activatePump() [L473] RET processEnvironment() [L479] CALL __utac_acc__Specification2_spec__2() [L55] int tmp ; [L56] int tmp___0 ; [L60] CALL, EXPR isMethaneLevelCritical() [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); [L60] RET, EXPR isMethaneLevelCritical() [L60] tmp = isMethaneLevelCritical() [L62] COND FALSE !(\read(tmp)) [L78] methAndRunningLastTime = 0 [L479] RET __utac_acc__Specification2_spec__2() [L778] RET timeShift() [L735] COND TRUE 1 [L737] COND TRUE splverifierCounter < 4 [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND TRUE \read(tmp___0) [L757] CALL changeMethaneLevel() [L660] COND FALSE !(\read(methaneLevelCritical)) [L663] methaneLevelCritical = 1 [L757] RET changeMethaneLevel() [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) [L778] CALL timeShift() [L464] COND TRUE \read(pumpRunning) [L466] CALL lowerWaterLevel() [L636] COND TRUE waterLevel > 0 [L637] waterLevel = waterLevel - 1 [L466] RET lowerWaterLevel() [L471] COND TRUE \read(systemActive) [L473] CALL processEnvironment() [L493] int tmp ; [L496] COND FALSE !(! pumpRunning) [L511] FCALL processEnvironment__wrappee__base() [L473] RET processEnvironment() [L479] CALL __utac_acc__Specification2_spec__2() [L55] int tmp ; [L56] int tmp___0 ; [L60] CALL, EXPR isMethaneLevelCritical() [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); [L60] RET, EXPR isMethaneLevelCritical() [L60] tmp = isMethaneLevelCritical() [L62] COND TRUE \read(tmp) [L64] CALL, EXPR isPumpRunning() [L563] int retValue_acc ; [L566] retValue_acc = pumpRunning [L567] return (retValue_acc); [L64] RET, EXPR isPumpRunning() [L64] tmp___0 = isPumpRunning() [L66] COND TRUE \read(tmp___0) [L67] COND TRUE \read(methAndRunningLastTime) [L69] CALL __automaton_fail() [L832] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 633 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 63.5s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 52.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2558 SDtfs, 6639 SDslu, 6335 SDs, 0 SdLazy, 11529 SolverSat, 1724 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 504 GetRequests, 292 SyntacticMatches, 4 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1408 ImplicationChecksByTransitivity, 29.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=960occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 1187 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...