/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_spec3_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:30:02,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:30:02,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:30:02,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:30:02,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:30:02,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:30:02,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:30:02,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:30:02,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:30:02,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:30:02,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:30:02,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:30:02,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:30:02,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:30:02,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:30:02,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:30:02,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:30:02,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:30:02,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:30:02,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:30:02,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:30:02,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:30:02,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:30:02,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:30:02,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:30:02,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:30:02,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:30:02,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:30:02,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:30:02,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:30:02,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:30:02,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:30:02,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:30:02,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:30:02,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:30:02,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:30:02,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:30:02,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:30:02,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:30:02,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:30:02,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:30:02,687 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 03:30:02,714 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:30:02,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:30:02,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:30:02,717 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:30:02,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:30:02,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:30:02,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:30:02,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:30:02,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:30:02,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:30:02,721 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:30:02,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:30:02,722 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:30:02,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:30:02,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:30:02,722 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:30:02,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:30:02,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:30:02,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:30:02,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:30:02,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:30:02,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:30:02,724 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:30:02,724 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:30:03,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:30:03,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:30:03,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:30:03,155 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:30:03,156 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:30:03,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2021-02-24 03:30:03,248 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1cbe8a50/0eda55cd71a846d9ac3518870e6eef98/FLAGb3ecf0c4c [2021-02-24 03:30:03,938 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:30:03,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2021-02-24 03:30:03,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1cbe8a50/0eda55cd71a846d9ac3518870e6eef98/FLAGb3ecf0c4c [2021-02-24 03:30:04,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1cbe8a50/0eda55cd71a846d9ac3518870e6eef98 [2021-02-24 03:30:04,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:30:04,284 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:30:04,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:30:04,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:30:04,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:30:04,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:30:04" (1/1) ... [2021-02-24 03:30:04,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729aa8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:04, skipping insertion in model container [2021-02-24 03:30:04,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:30:04" (1/1) ... [2021-02-24 03:30:04,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:30:04,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:30:04,709 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_spec3_product60.cil.c[15798,15811] [2021-02-24 03:30:04,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:30:04,743 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:30:04,814 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_spec3_product60.cil.c[15798,15811] [2021-02-24 03:30:04,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:30:04,875 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:30:04,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:04 WrapperNode [2021-02-24 03:30:04,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:30:04,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:30:04,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:30:04,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:30:04,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:04" (1/1) ... [2021-02-24 03:30:04,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:04" (1/1) ... [2021-02-24 03:30:04,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:04" (1/1) ... [2021-02-24 03:30:04,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:04" (1/1) ... [2021-02-24 03:30:05,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:04" (1/1) ... [2021-02-24 03:30:05,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:04" (1/1) ... [2021-02-24 03:30:05,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:04" (1/1) ... [2021-02-24 03:30:05,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:30:05,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:30:05,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:30:05,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:30:05,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:04" (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 03:30:05,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:30:05,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:30:05,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:30:05,176 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:30:05,176 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:30:05,176 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:30:05,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-24 03:30:05,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-24 03:30:05,177 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:30:05,177 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2021-02-24 03:30:05,177 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:30:05,177 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:30:05,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:30:05,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:30:05,178 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:30:05,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-24 03:30:05,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-24 03:30:05,178 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-24 03:30:05,179 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-24 03:30:05,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-24 03:30:05,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:30:05,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:30:05,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:30:05,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:30:05,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:30:05,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:30:05,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:30:05,180 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:30:05,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:30:05,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:30:05,181 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:30:05,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:30:05,181 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:30:05,182 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:30:05,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:30:05,182 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:30:05,182 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:30:05,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-24 03:30:05,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-24 03:30:05,183 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:30:05,183 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:30:05,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:30:05,183 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:30:05,183 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:30:05,184 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:30:05,184 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:30:05,184 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:30:05,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:30:05,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:30:05,184 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:30:05,184 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:30:05,185 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:30:05,185 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-24 03:30:05,185 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-24 03:30:05,185 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:30:05,185 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:30:05,185 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:30:05,186 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:30:05,186 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:30:05,186 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:30:05,186 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-24 03:30:05,187 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-24 03:30:05,187 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:30:05,187 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:30:05,187 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:30:05,187 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:30:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-24 03:30:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:30:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-24 03:30:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-24 03:30:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-24 03:30:05,188 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-24 03:30:05,189 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2021-02-24 03:30:05,189 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:30:05,189 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:30:05,189 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:30:05,189 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:30:05,189 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:30:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:30:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:30:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:30:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:30:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:30:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:30:05,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:30:05,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:30:05,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:30:05,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:30:05,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:30:05,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:30:05,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:30:05,192 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:30:05,192 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:30:05,192 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:30:05,192 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:30:05,192 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:30:05,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:30:05,193 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:30:05,193 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:30:05,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:30:05,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:30:05,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:30:07,185 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:30:07,185 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:30:07,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:30:07 BoogieIcfgContainer [2021-02-24 03:30:07,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:30:07,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:30:07,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:30:07,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:30:07,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:30:04" (1/3) ... [2021-02-24 03:30:07,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3143d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:30:07, skipping insertion in model container [2021-02-24 03:30:07,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:04" (2/3) ... [2021-02-24 03:30:07,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3143d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:30:07, skipping insertion in model container [2021-02-24 03:30:07,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:30:07" (3/3) ... [2021-02-24 03:30:07,202 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2021-02-24 03:30:07,210 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:30:07,217 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:30:07,237 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:30:07,272 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:30:07,273 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:30:07,273 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:30:07,273 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:30:07,273 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:30:07,273 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:30:07,274 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:30:07,274 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:30:07,311 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states. [2021-02-24 03:30:07,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-24 03:30:07,345 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:30:07,346 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] [2021-02-24 03:30:07,347 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:30:07,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:30:07,353 INFO L82 PathProgramCache]: Analyzing trace with hash -132092640, now seen corresponding path program 1 times [2021-02-24 03:30:07,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:30:07,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449946156] [2021-02-24 03:30:07,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:30:07,447 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:30:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:07,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:07,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:07,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:07,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:08,484 WARN L202 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:30:08,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:30:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:08,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:08,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:08,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:30:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:08,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:08,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:08,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:30:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:08,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:08,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:08,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:30:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:08,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:08,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:08,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:30:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:08,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:08,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:08,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:30:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:08,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:08,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:08,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:30:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:08,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:08,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:08,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-24 03:30:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:08,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:08,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:08,780 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 03:30:08,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449946156] [2021-02-24 03:30:08,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:30:08,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:30:08,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417798982] [2021-02-24 03:30:08,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:30:08,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:30:08,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:30:08,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:30:08,807 INFO L87 Difference]: Start difference. First operand 356 states. Second operand 3 states. [2021-02-24 03:30:11,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:30:11,687 INFO L93 Difference]: Finished difference Result 576 states and 679 transitions. [2021-02-24 03:30:11,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:30:11,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-24 03:30:11,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:30:11,723 INFO L225 Difference]: With dead ends: 576 [2021-02-24 03:30:11,723 INFO L226 Difference]: Without dead ends: 350 [2021-02-24 03:30:11,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:30:11,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-02-24 03:30:11,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 304. [2021-02-24 03:30:11,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2021-02-24 03:30:11,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 331 transitions. [2021-02-24 03:30:11,964 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 331 transitions. Word has length 158 [2021-02-24 03:30:11,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:30:11,965 INFO L480 AbstractCegarLoop]: Abstraction has 304 states and 331 transitions. [2021-02-24 03:30:11,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:30:11,965 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 331 transitions. [2021-02-24 03:30:11,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-24 03:30:11,970 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:30:11,970 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] [2021-02-24 03:30:11,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:30:11,971 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:30:11,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:30:11,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1542571510, now seen corresponding path program 1 times [2021-02-24 03:30:11,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:30:11,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154283817] [2021-02-24 03:30:11,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:30:11,976 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:30:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:12,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:12,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:12,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:12,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:12,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:12,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:12,716 WARN L202 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:30:12,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:30:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:12,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:12,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:12,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:30:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:12,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:12,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:12,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:30:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:12,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:12,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:12,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:30:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:12,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:12,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:12,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:30:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:12,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:12,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:12,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-24 03:30:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:12,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:12,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:12,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:30:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:12,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:12,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:12,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-24 03:30:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:12,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:12,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:12,873 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 03:30:12,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154283817] [2021-02-24 03:30:12,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:30:12,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:30:12,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496434686] [2021-02-24 03:30:12,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:30:12,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:30:12,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:30:12,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:30:12,878 INFO L87 Difference]: Start difference. First operand 304 states and 331 transitions. Second operand 4 states. [2021-02-24 03:30:14,122 WARN L202 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:30:16,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:30:16,234 INFO L93 Difference]: Finished difference Result 482 states and 541 transitions. [2021-02-24 03:30:16,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:30:16,235 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-24 03:30:16,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:30:16,239 INFO L225 Difference]: With dead ends: 482 [2021-02-24 03:30:16,240 INFO L226 Difference]: Without dead ends: 333 [2021-02-24 03:30:16,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 03:30:16,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-02-24 03:30:16,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 294. [2021-02-24 03:30:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2021-02-24 03:30:16,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 318 transitions. [2021-02-24 03:30:16,376 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 318 transitions. Word has length 159 [2021-02-24 03:30:16,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:30:16,376 INFO L480 AbstractCegarLoop]: Abstraction has 294 states and 318 transitions. [2021-02-24 03:30:16,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:30:16,377 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 318 transitions. [2021-02-24 03:30:16,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-24 03:30:16,379 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:30:16,380 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] [2021-02-24 03:30:16,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:30:16,380 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:30:16,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:30:16,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1968841679, now seen corresponding path program 1 times [2021-02-24 03:30:16,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:30:16,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317888937] [2021-02-24 03:30:16,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:30:16,387 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:30:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:16,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:16,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:16,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:16,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:16,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:16,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:16,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:16,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:16,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:16,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:30:16,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:16,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,131 WARN L202 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:30:17,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:30:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:30:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:30:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:30:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:30:17,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:30:17,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:30:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-24 03:30:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:17,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-24 03:30:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-24 03:30:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-24 03:30:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,420 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 03:30:17,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317888937] [2021-02-24 03:30:17,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:30:17,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:30:17,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994014993] [2021-02-24 03:30:17,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:30:17,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:30:17,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:30:17,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:30:17,428 INFO L87 Difference]: Start difference. First operand 294 states and 318 transitions. Second operand 10 states. [2021-02-24 03:30:18,492 WARN L202 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:30:19,328 WARN L202 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:30:20,074 WARN L202 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:30:20,863 WARN L202 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:30:21,591 WARN L202 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:30:22,300 WARN L202 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:30:23,961 WARN L202 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:30:29,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:30:29,434 INFO L93 Difference]: Finished difference Result 822 states and 950 transitions. [2021-02-24 03:30:29,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 03:30:29,435 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-24 03:30:29,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:30:29,441 INFO L225 Difference]: With dead ends: 822 [2021-02-24 03:30:29,442 INFO L226 Difference]: Without dead ends: 643 [2021-02-24 03:30:29,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-24 03:30:29,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2021-02-24 03:30:29,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 544. [2021-02-24 03:30:29,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2021-02-24 03:30:29,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 607 transitions. [2021-02-24 03:30:29,701 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 607 transitions. Word has length 172 [2021-02-24 03:30:29,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:30:29,701 INFO L480 AbstractCegarLoop]: Abstraction has 544 states and 607 transitions. [2021-02-24 03:30:29,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:30:29,702 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 607 transitions. [2021-02-24 03:30:29,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-24 03:30:29,706 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:30:29,706 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] [2021-02-24 03:30:29,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:30:29,706 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:30:29,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:30:29,707 INFO L82 PathProgramCache]: Analyzing trace with hash -852185042, now seen corresponding path program 1 times [2021-02-24 03:30:29,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:30:29,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1448371231] [2021-02-24 03:30:29,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:30:29,711 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:30:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:29,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:29,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:29,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:29,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:29,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:29,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:29,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:29,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:29,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:29,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:29,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:29,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:29,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:29,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:29,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:29,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:30,542 WARN L202 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:30:30,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:30:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:30,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:30,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:30,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:30,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:30:30,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:30:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:30,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:30,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:30,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:30:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:30,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:30,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:30,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:30:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:30,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:30,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:30,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:30:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:30,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:30,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:30,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:30:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:30,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:30,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:30,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-24 03:30:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:30,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:30,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:30,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-24 03:30:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:30,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:30,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:30,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:30,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:30,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:30,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:30,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-24 03:30:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:30,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:30,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:30,731 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 03:30:30,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1448371231] [2021-02-24 03:30:30,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:30:30,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:30:30,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150751152] [2021-02-24 03:30:30,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:30:30,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:30:30,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:30:30,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:30:30,733 INFO L87 Difference]: Start difference. First operand 544 states and 607 transitions. Second operand 9 states. [2021-02-24 03:30:31,854 WARN L202 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:30:35,649 WARN L202 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:30:36,481 WARN L202 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:30:37,357 WARN L202 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:30:38,375 WARN L202 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:30:39,106 WARN L202 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:30:39,883 WARN L202 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:30:40,666 WARN L202 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:30:43,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:30:43,221 INFO L93 Difference]: Finished difference Result 1492 states and 1778 transitions. [2021-02-24 03:30:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 03:30:43,225 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2021-02-24 03:30:43,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:30:43,233 INFO L225 Difference]: With dead ends: 1492 [2021-02-24 03:30:43,234 INFO L226 Difference]: Without dead ends: 1063 [2021-02-24 03:30:43,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-24 03:30:43,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2021-02-24 03:30:43,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 956. [2021-02-24 03:30:43,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 956 states. [2021-02-24 03:30:43,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1090 transitions. [2021-02-24 03:30:43,709 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1090 transitions. Word has length 177 [2021-02-24 03:30:43,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:30:43,710 INFO L480 AbstractCegarLoop]: Abstraction has 956 states and 1090 transitions. [2021-02-24 03:30:43,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:30:43,710 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1090 transitions. [2021-02-24 03:30:43,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-24 03:30:43,715 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:30:43,715 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] [2021-02-24 03:30:43,715 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:30:43,716 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:30:43,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:30:43,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1409559926, now seen corresponding path program 1 times [2021-02-24 03:30:43,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:30:43,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972409299] [2021-02-24 03:30:43,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:30:43,723 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:30:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:43,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:43,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:43,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:43,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:43,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:43,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:43,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:43,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:43,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:43,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:43,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:43,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:43,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:43,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:44,364 WARN L202 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:30:44,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:30:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:44,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:44,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:44,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:44,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:44,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:30:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:44,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:44,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:44,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:30:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:44,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:44,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:44,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:30:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:44,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:44,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:44,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:30:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:44,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:44,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:44,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:30:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:44,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:44,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:44,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-24 03:30:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:44,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:44,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:44,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-24 03:30:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:44,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:44,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:44,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-24 03:30:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:44,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:44,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:44,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-02-24 03:30:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:44,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:44,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:44,550 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 03:30:44,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972409299] [2021-02-24 03:30:44,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:30:44,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:30:44,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216274572] [2021-02-24 03:30:44,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:30:44,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:30:44,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:30:44,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:30:44,553 INFO L87 Difference]: Start difference. First operand 956 states and 1090 transitions. Second operand 6 states. [2021-02-24 03:30:45,672 WARN L202 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:30:50,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:30:50,343 INFO L93 Difference]: Finished difference Result 2136 states and 2549 transitions. [2021-02-24 03:30:50,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 03:30:50,344 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2021-02-24 03:30:50,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:30:50,354 INFO L225 Difference]: With dead ends: 2136 [2021-02-24 03:30:50,354 INFO L226 Difference]: Without dead ends: 1295 [2021-02-24 03:30:50,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:30:50,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2021-02-24 03:30:50,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1195. [2021-02-24 03:30:50,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1195 states. [2021-02-24 03:30:50,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1358 transitions. [2021-02-24 03:30:50,936 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1358 transitions. Word has length 182 [2021-02-24 03:30:50,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:30:50,936 INFO L480 AbstractCegarLoop]: Abstraction has 1195 states and 1358 transitions. [2021-02-24 03:30:50,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:30:50,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1358 transitions. [2021-02-24 03:30:50,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-24 03:30:50,940 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:30:50,940 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] [2021-02-24 03:30:50,940 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:30:50,941 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:30:50,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:30:50,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1993496595, now seen corresponding path program 1 times [2021-02-24 03:30:50,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:30:50,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1059855416] [2021-02-24 03:30:50,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:30:50,945 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:30:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:30:51,020 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:30:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:30:51,090 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:30:51,321 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:30:51,322 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:30:51,323 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 03:30:51,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:30:51 BoogieIcfgContainer [2021-02-24 03:30:51,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:30:51,349 INFO L168 Benchmark]: Toolchain (without parser) took 47076.52 ms. Allocated memory was 151.0 MB in the beginning and 549.5 MB in the end (delta: 398.5 MB). Free memory was 126.5 MB in the beginning and 486.0 MB in the end (delta: -359.5 MB). Peak memory consumption was 279.8 MB. Max. memory is 8.0 GB. [2021-02-24 03:30:51,349 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:30:51,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.83 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 103.1 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:30:51,350 INFO L168 Benchmark]: Boogie Preprocessor took 193.27 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 131.8 MB in the end (delta: -28.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:30:51,351 INFO L168 Benchmark]: RCFGBuilder took 2119.04 ms. Allocated memory is still 151.0 MB. Free memory was 131.8 MB in the beginning and 78.6 MB in the end (delta: 53.2 MB). Peak memory consumption was 62.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:30:51,351 INFO L168 Benchmark]: TraceAbstraction took 44154.90 ms. Allocated memory was 151.0 MB in the beginning and 549.5 MB in the end (delta: 398.5 MB). Free memory was 78.6 MB in the beginning and 486.0 MB in the end (delta: -407.4 MB). Peak memory consumption was 230.6 MB. Max. memory is 8.0 GB. [2021-02-24 03:30:51,353 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 584.83 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 103.1 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 193.27 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 131.8 MB in the end (delta: -28.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2119.04 ms. Allocated memory is still 151.0 MB. Free memory was 131.8 MB in the beginning and 78.6 MB in the end (delta: 53.2 MB). Peak memory consumption was 62.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 44154.90 ms. Allocated memory was 151.0 MB in the beginning and 549.5 MB in the end (delta: 398.5 MB). Free memory was 78.6 MB in the beginning and 486.0 MB in the end (delta: -407.4 MB). Peak memory consumption was 230.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 771]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L126] int pumpRunning = 0; [L127] int systemActive = 1; [L570] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; [L917] int cleanupTimeShifts = 4; [L990] int retValue_acc ; [L991] int tmp ; [L995] FCALL select_helpers() [L996] FCALL select_features() [L997] CALL, EXPR valid_product() [L805] int retValue_acc ; [L808] retValue_acc = 1 [L809] return (retValue_acc); [L997] RET, EXPR valid_product() [L997] tmp = valid_product() [L999] COND TRUE \read(tmp) [L1001] FCALL setup() [L1002] CALL runTest() [L984] CALL test() [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 [L58] COND TRUE 1 [L60] COND TRUE splverifierCounter < 4 [L66] tmp = __VERIFIER_nondet_int() [L68] COND TRUE \read(tmp) [L70] CALL waterRise() [L832] COND TRUE waterLevel < 2 [L833] waterLevel = waterLevel + 1 [L70] RET waterRise() [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND FALSE !(\read(tmp___2)) [L94] tmp___1 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___1) [L98] CALL stopSystem() [L345] COND FALSE !(\read(pumpRunning)) [L352] systemActive = 0 [L98] RET stopSystem() [L105] CALL timeShift() [L134] COND FALSE !(\read(pumpRunning)) [L141] COND FALSE !(\read(systemActive)) [L149] CALL __utac_acc__Specification3_spec__1() [L368] int tmp ; [L369] int tmp___0 ; [L370] int tmp___1 ; [L374] CALL, EXPR isMethaneLevelCritical() [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); [L374] RET, EXPR isMethaneLevelCritical() [L374] tmp = isMethaneLevelCritical() [L376] COND FALSE !(\read(tmp)) [L380] CALL, EXPR getWaterLevel() [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); [L380] RET, EXPR getWaterLevel() [L380] tmp___0 = getWaterLevel() [L382] COND TRUE tmp___0 == 2 [L384] CALL, EXPR isPumpRunning() [L259] int retValue_acc ; [L262] retValue_acc = pumpRunning [L263] return (retValue_acc); [L384] RET, EXPR isPumpRunning() [L384] tmp___1 = isPumpRunning() [L386] COND FALSE !(\read(tmp___1)) [L390] CALL __automaton_fail() [L771] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 671 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 44.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 36.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1451 SDtfs, 2471 SDslu, 1698 SDs, 0 SdLazy, 4229 SolverSat, 849 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 15.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1195occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 391 StatesRemovedByMinimization, 5 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...