/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:22:08,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:22:08,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:22:08,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:22:08,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:22:08,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:22:08,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:22:08,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:22:08,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:22:08,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:22:08,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:22:08,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:22:08,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:22:08,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:22:08,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:22:08,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:22:08,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:22:08,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:22:08,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:22:08,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:22:08,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:22:08,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:22:08,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:22:08,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:22:08,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:22:08,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:22:08,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:22:08,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:22:08,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:22:08,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:22:08,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:22:08,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:22:08,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:22:08,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:22:08,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:22:08,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:22:08,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:22:08,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:22:08,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:22:08,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:22:08,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:22:08,559 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:22:08,571 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:22:08,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:22:08,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:22:08,574 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:22:08,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:22:08,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:22:08,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:22:08,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:22:08,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:22:08,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:22:08,575 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:22:08,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:22:08,576 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:22:08,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:22:08,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:22:08,577 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:22:08,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:22:08,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:22:08,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:22:08,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:22:08,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:22:08,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:22:08,578 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:22:08,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:22:09,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:22:09,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:22:09,008 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:22:09,009 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:22:09,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-10-23 20:22:09,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f10d97a58/dca6d0efd1314b70a99060f8a3a855e8/FLAGd9f35c98d [2020-10-23 20:22:09,935 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:22:09,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-10-23 20:22:09,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f10d97a58/dca6d0efd1314b70a99060f8a3a855e8/FLAGd9f35c98d [2020-10-23 20:22:10,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f10d97a58/dca6d0efd1314b70a99060f8a3a855e8 [2020-10-23 20:22:10,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:22:10,191 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:22:10,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:22:10,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:22:10,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:22:10,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:22:10" (1/1) ... [2020-10-23 20:22:10,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1050ca71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:22:10, skipping insertion in model container [2020-10-23 20:22:10,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:22:10" (1/1) ... [2020-10-23 20:22:10,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:22:10,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:22:10,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:22:10,647 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:22:10,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:22:10,888 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:22:10,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:22:10 WrapperNode [2020-10-23 20:22:10,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:22:10,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:22:10,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:22:10,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:22:10,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:22:10" (1/1) ... [2020-10-23 20:22:10,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:22:10" (1/1) ... [2020-10-23 20:22:10,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:22:10" (1/1) ... [2020-10-23 20:22:10,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:22:10" (1/1) ... [2020-10-23 20:22:10,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:22:10" (1/1) ... [2020-10-23 20:22:10,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:22:10" (1/1) ... [2020-10-23 20:22:11,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:22:10" (1/1) ... [2020-10-23 20:22:11,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:22:11,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:22:11,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:22:11,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:22:11,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:22:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:22:11,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:22:11,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:22:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:22:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:22:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:22:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:22:11,141 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:22:11,141 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:22:11,141 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:22:11,141 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:22:11,142 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:22:11,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:22:11,142 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:22:11,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:22:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:22:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:22:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:22:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:22:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:22:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:22:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:22:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:22:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:22:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:22:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:22:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:22:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:22:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:22:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-10-23 20:22:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-10-23 20:22:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-10-23 20:22:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:22:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:22:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:22:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:22:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:22:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:22:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:22:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:22:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:22:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:22:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:22:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:22:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:22:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:22:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:22:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:22:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:22:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:22:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:22:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:22:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:22:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:22:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:22:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:22:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:22:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:22:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:22:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:22:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:22:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:22:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:22:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-10-23 20:22:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:22:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:22:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:22:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:22:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:22:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:22:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:22:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:22:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:22:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:22:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:22:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:22:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:22:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:22:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:22:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:22:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:22:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:22:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:22:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:22:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:22:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:22:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:22:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:22:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:22:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-10-23 20:22:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-10-23 20:22:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:22:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:22:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:22:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:22:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:22:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:22:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:22:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:22:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:22:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:22:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:22:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:22:12,742 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:22:12,742 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:22:12,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:22:12 BoogieIcfgContainer [2020-10-23 20:22:12,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:22:12,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:22:12,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:22:12,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:22:12,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:22:10" (1/3) ... [2020-10-23 20:22:12,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b69ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:22:12, skipping insertion in model container [2020-10-23 20:22:12,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:22:10" (2/3) ... [2020-10-23 20:22:12,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b69ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:22:12, skipping insertion in model container [2020-10-23 20:22:12,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:22:12" (3/3) ... [2020-10-23 20:22:12,755 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2020-10-23 20:22:12,768 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:22:12,774 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:22:12,788 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:22:12,814 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:22:12,814 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:22:12,815 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:22:12,815 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:22:12,815 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:22:12,815 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:22:12,815 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:22:12,815 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:22:12,843 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states. [2020-10-23 20:22:12,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:22:12,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:12,865 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:22:12,866 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:22:12,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:12,872 INFO L82 PathProgramCache]: Analyzing trace with hash 674217197, now seen corresponding path program 1 times [2020-10-23 20:22:12,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:12,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533702134] [2020-10-23 20:22:12,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:12,961 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:13,732 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:13,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:13,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:13,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:13,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:13,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:13,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:13,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:22:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:13,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:13,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 20:22:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:13,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:22:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:13,957 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:22:13,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533702134] [2020-10-23 20:22:13,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:13,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:22:13,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324195688] [2020-10-23 20:22:13,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:22:13,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:13,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:22:13,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:22:13,985 INFO L87 Difference]: Start difference. First operand 356 states. Second operand 4 states. [2020-10-23 20:22:15,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:15,523 INFO L93 Difference]: Finished difference Result 563 states and 652 transitions. [2020-10-23 20:22:15,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 20:22:15,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-10-23 20:22:15,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:15,545 INFO L225 Difference]: With dead ends: 563 [2020-10-23 20:22:15,545 INFO L226 Difference]: Without dead ends: 348 [2020-10-23 20:22:15,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:22:15,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-23 20:22:15,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 302. [2020-10-23 20:22:15,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-10-23 20:22:15,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 327 transitions. [2020-10-23 20:22:15,760 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 327 transitions. Word has length 166 [2020-10-23 20:22:15,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:15,762 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 327 transitions. [2020-10-23 20:22:15,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:22:15,762 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 327 transitions. [2020-10-23 20:22:15,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:22:15,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:15,767 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:22:15,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:22:15,767 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:22:15,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:15,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1682877682, now seen corresponding path program 1 times [2020-10-23 20:22:15,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:15,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368365751] [2020-10-23 20:22:15,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:15,773 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:16,233 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:16,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:16,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:16,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:16,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:16,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:16,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:16,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:22:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:16,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:16,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:22:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:16,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:22:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:16,364 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:22:16,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368365751] [2020-10-23 20:22:16,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:16,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 20:22:16,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899520985] [2020-10-23 20:22:16,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 20:22:16,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:16,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 20:22:16,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:22:16,372 INFO L87 Difference]: Start difference. First operand 302 states and 327 transitions. Second operand 5 states. [2020-10-23 20:22:17,125 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:18,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:18,391 INFO L93 Difference]: Finished difference Result 489 states and 544 transitions. [2020-10-23 20:22:18,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 20:22:18,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-10-23 20:22:18,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:18,399 INFO L225 Difference]: With dead ends: 489 [2020-10-23 20:22:18,399 INFO L226 Difference]: Without dead ends: 337 [2020-10-23 20:22:18,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:22:18,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-10-23 20:22:18,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 292. [2020-10-23 20:22:18,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-23 20:22:18,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 314 transitions. [2020-10-23 20:22:18,510 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 314 transitions. Word has length 167 [2020-10-23 20:22:18,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:18,511 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 314 transitions. [2020-10-23 20:22:18,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 20:22:18,511 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 314 transitions. [2020-10-23 20:22:18,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-23 20:22:18,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:18,514 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:22:18,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:22:18,515 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:22:18,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:18,516 INFO L82 PathProgramCache]: Analyzing trace with hash 839044176, now seen corresponding path program 1 times [2020-10-23 20:22:18,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:18,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308162328] [2020-10-23 20:22:18,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:18,520 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:18,973 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:18,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:19,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:19,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:19,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:19,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:19,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:19,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:22:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:19,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:19,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:22:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:19,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-23 20:22:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:19,259 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:22:19,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308162328] [2020-10-23 20:22:19,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:19,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:22:19,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615537348] [2020-10-23 20:22:19,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:22:19,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:19,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:22:19,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:22:19,263 INFO L87 Difference]: Start difference. First operand 292 states and 314 transitions. Second operand 10 states. [2020-10-23 20:22:19,829 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:20,224 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:22:20,524 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:22:20,828 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:21,110 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:22:21,385 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:23,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:23,215 INFO L93 Difference]: Finished difference Result 509 states and 570 transitions. [2020-10-23 20:22:23,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:22:23,215 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2020-10-23 20:22:23,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:23,219 INFO L225 Difference]: With dead ends: 509 [2020-10-23 20:22:23,220 INFO L226 Difference]: Without dead ends: 337 [2020-10-23 20:22:23,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:22:23,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-10-23 20:22:23,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 292. [2020-10-23 20:22:23,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-23 20:22:23,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 313 transitions. [2020-10-23 20:22:23,363 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 313 transitions. Word has length 176 [2020-10-23 20:22:23,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:23,364 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 313 transitions. [2020-10-23 20:22:23,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:22:23,364 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 313 transitions. [2020-10-23 20:22:23,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-23 20:22:23,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:23,368 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:22:23,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:22:23,369 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:22:23,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:23,370 INFO L82 PathProgramCache]: Analyzing trace with hash 717514714, now seen corresponding path program 1 times [2020-10-23 20:22:23,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:23,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18696189] [2020-10-23 20:22:23,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:23,375 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:23,732 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:23,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:23,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:23,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:23,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:23,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:23,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:23,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:22:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:23,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:23,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:22:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:23,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:23,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:23,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 20:22:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:23,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-23 20:22:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:23,973 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:22:23,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18696189] [2020-10-23 20:22:23,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:23,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:22:23,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222535019] [2020-10-23 20:22:23,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:22:23,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:23,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:22:23,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:22:23,983 INFO L87 Difference]: Start difference. First operand 292 states and 313 transitions. Second operand 7 states. [2020-10-23 20:22:24,529 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:26,444 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:27,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:27,021 INFO L93 Difference]: Finished difference Result 651 states and 741 transitions. [2020-10-23 20:22:27,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 20:22:27,022 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 189 [2020-10-23 20:22:27,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:27,027 INFO L225 Difference]: With dead ends: 651 [2020-10-23 20:22:27,027 INFO L226 Difference]: Without dead ends: 479 [2020-10-23 20:22:27,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:22:27,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2020-10-23 20:22:27,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 409. [2020-10-23 20:22:27,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-10-23 20:22:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 442 transitions. [2020-10-23 20:22:27,197 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 442 transitions. Word has length 189 [2020-10-23 20:22:27,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:27,198 INFO L481 AbstractCegarLoop]: Abstraction has 409 states and 442 transitions. [2020-10-23 20:22:27,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:22:27,198 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 442 transitions. [2020-10-23 20:22:27,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-23 20:22:27,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:27,202 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:22:27,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:22:27,203 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:22:27,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:27,203 INFO L82 PathProgramCache]: Analyzing trace with hash 653526251, now seen corresponding path program 1 times [2020-10-23 20:22:27,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:27,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844530135] [2020-10-23 20:22:27,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:27,208 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,562 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:27,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:22:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:22:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:22:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:22:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-23 20:22:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-23 20:22:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:27,868 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-23 20:22:27,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844530135] [2020-10-23 20:22:27,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:27,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:22:27,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032221745] [2020-10-23 20:22:27,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:22:27,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:27,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:22:27,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:22:27,871 INFO L87 Difference]: Start difference. First operand 409 states and 442 transitions. Second operand 10 states. [2020-10-23 20:22:28,428 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:29,321 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:29,596 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:22:30,831 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:31,106 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:31,446 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:31,939 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:32,258 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:22:32,551 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:33,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:33,177 INFO L93 Difference]: Finished difference Result 765 states and 863 transitions. [2020-10-23 20:22:33,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 20:22:33,178 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 213 [2020-10-23 20:22:33,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:33,182 INFO L225 Difference]: With dead ends: 765 [2020-10-23 20:22:33,182 INFO L226 Difference]: Without dead ends: 476 [2020-10-23 20:22:33,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 20:22:33,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-10-23 20:22:33,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 408. [2020-10-23 20:22:33,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-10-23 20:22:33,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 439 transitions. [2020-10-23 20:22:33,334 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 439 transitions. Word has length 213 [2020-10-23 20:22:33,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:33,335 INFO L481 AbstractCegarLoop]: Abstraction has 408 states and 439 transitions. [2020-10-23 20:22:33,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:22:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 439 transitions. [2020-10-23 20:22:33,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-23 20:22:33,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:33,339 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:22:33,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:22:33,339 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:22:33,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:33,340 INFO L82 PathProgramCache]: Analyzing trace with hash 240525184, now seen corresponding path program 1 times [2020-10-23 20:22:33,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:33,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1355168578] [2020-10-23 20:22:33,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:33,344 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,619 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:33,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:22:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:22:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:22:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:22:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:22:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:22:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:22:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-23 20:22:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-23 20:22:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:22:33,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1355168578] [2020-10-23 20:22:33,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:33,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:22:33,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179706909] [2020-10-23 20:22:33,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:22:33,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:33,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:22:33,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:22:33,877 INFO L87 Difference]: Start difference. First operand 408 states and 439 transitions. Second operand 10 states. [2020-10-23 20:22:35,338 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:35,650 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:22:35,977 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 20:22:36,279 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:36,588 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:22:36,891 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:38,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:38,045 INFO L93 Difference]: Finished difference Result 768 states and 869 transitions. [2020-10-23 20:22:38,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:22:38,046 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 236 [2020-10-23 20:22:38,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:38,050 INFO L225 Difference]: With dead ends: 768 [2020-10-23 20:22:38,050 INFO L226 Difference]: Without dead ends: 480 [2020-10-23 20:22:38,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:22:38,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-10-23 20:22:38,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 416. [2020-10-23 20:22:38,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-10-23 20:22:38,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 447 transitions. [2020-10-23 20:22:38,222 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 447 transitions. Word has length 236 [2020-10-23 20:22:38,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:38,223 INFO L481 AbstractCegarLoop]: Abstraction has 416 states and 447 transitions. [2020-10-23 20:22:38,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:22:38,223 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 447 transitions. [2020-10-23 20:22:38,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-23 20:22:38,226 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:38,227 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:22:38,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:22:38,227 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:22:38,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:38,228 INFO L82 PathProgramCache]: Analyzing trace with hash -534172896, now seen corresponding path program 1 times [2020-10-23 20:22:38,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:38,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115049559] [2020-10-23 20:22:38,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:38,232 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,541 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:38,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:22:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:22:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:22:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:22:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:22:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:22:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:22:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-23 20:22:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-23 20:22:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:38,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:22:38,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115049559] [2020-10-23 20:22:38,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:38,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 20:22:38,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494489685] [2020-10-23 20:22:38,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 20:22:38,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:38,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 20:22:38,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-23 20:22:38,838 INFO L87 Difference]: Start difference. First operand 416 states and 447 transitions. Second operand 13 states. [2020-10-23 20:22:39,558 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:39,850 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:22:40,147 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:40,455 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:22:40,730 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:41,742 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:42,037 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:22:42,340 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:42,638 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:22:42,917 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:44,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:44,264 INFO L93 Difference]: Finished difference Result 785 states and 887 transitions. [2020-10-23 20:22:44,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 20:22:44,269 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 236 [2020-10-23 20:22:44,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:44,275 INFO L225 Difference]: With dead ends: 785 [2020-10-23 20:22:44,275 INFO L226 Difference]: Without dead ends: 489 [2020-10-23 20:22:44,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-10-23 20:22:44,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2020-10-23 20:22:44,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 422. [2020-10-23 20:22:44,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-10-23 20:22:44,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 453 transitions. [2020-10-23 20:22:44,453 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 453 transitions. Word has length 236 [2020-10-23 20:22:44,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:44,453 INFO L481 AbstractCegarLoop]: Abstraction has 422 states and 453 transitions. [2020-10-23 20:22:44,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 20:22:44,454 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 453 transitions. [2020-10-23 20:22:44,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-23 20:22:44,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:44,457 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:22:44,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 20:22:44,458 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:22:44,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:44,459 INFO L82 PathProgramCache]: Analyzing trace with hash 531254211, now seen corresponding path program 1 times [2020-10-23 20:22:44,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:44,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651978409] [2020-10-23 20:22:44,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:44,463 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,804 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:44,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:22:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:22:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:22:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:22:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:22:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:22:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:22:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-23 20:22:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:44,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-23 20:22:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:45,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:22:45,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651978409] [2020-10-23 20:22:45,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:45,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:22:45,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39122774] [2020-10-23 20:22:45,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:22:45,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:45,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:22:45,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:22:45,039 INFO L87 Difference]: Start difference. First operand 422 states and 453 transitions. Second operand 7 states. [2020-10-23 20:22:45,617 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:46,290 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:48,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:48,674 INFO L93 Difference]: Finished difference Result 1037 states and 1194 transitions. [2020-10-23 20:22:48,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 20:22:48,675 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-10-23 20:22:48,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:48,680 INFO L225 Difference]: With dead ends: 1037 [2020-10-23 20:22:48,680 INFO L226 Difference]: Without dead ends: 735 [2020-10-23 20:22:48,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:22:48,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-10-23 20:22:48,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 665. [2020-10-23 20:22:48,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-10-23 20:22:48,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 733 transitions. [2020-10-23 20:22:48,952 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 733 transitions. Word has length 236 [2020-10-23 20:22:48,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:48,953 INFO L481 AbstractCegarLoop]: Abstraction has 665 states and 733 transitions. [2020-10-23 20:22:48,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:22:48,953 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 733 transitions. [2020-10-23 20:22:48,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 20:22:48,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:48,957 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:22:48,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 20:22:48,958 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:22:48,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:48,958 INFO L82 PathProgramCache]: Analyzing trace with hash -634478629, now seen corresponding path program 1 times [2020-10-23 20:22:48,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:48,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117595296] [2020-10-23 20:22:48,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:48,962 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,352 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:49,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:22:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:22:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:22:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:22:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:22:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:22:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:22:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:22:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-23 20:22:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-23 20:22:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:49,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:22:49,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117595296] [2020-10-23 20:22:49,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:49,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:22:49,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383738599] [2020-10-23 20:22:49,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:22:49,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:49,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:22:49,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:22:49,645 INFO L87 Difference]: Start difference. First operand 665 states and 733 transitions. Second operand 14 states. [2020-10-23 20:22:50,484 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 207 [2020-10-23 20:22:51,396 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:53,072 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 209 [2020-10-23 20:22:53,621 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2020-10-23 20:22:53,985 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:54,285 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:22:54,858 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 210 [2020-10-23 20:22:55,140 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:55,491 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:22:55,778 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:57,450 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:57,717 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:58,029 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:58,655 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 207 [2020-10-23 20:23:00,157 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 209 [2020-10-23 20:23:00,712 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:23:01,306 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2020-10-23 20:23:01,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:23:01,736 INFO L93 Difference]: Finished difference Result 1803 states and 2071 transitions. [2020-10-23 20:23:01,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-23 20:23:01,738 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 241 [2020-10-23 20:23:01,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:23:01,746 INFO L225 Difference]: With dead ends: 1803 [2020-10-23 20:23:01,746 INFO L226 Difference]: Without dead ends: 1361 [2020-10-23 20:23:01,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=499, Invalid=1853, Unknown=0, NotChecked=0, Total=2352 [2020-10-23 20:23:01,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2020-10-23 20:23:02,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1182. [2020-10-23 20:23:02,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1182 states. [2020-10-23 20:23:02,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1294 transitions. [2020-10-23 20:23:02,230 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1294 transitions. Word has length 241 [2020-10-23 20:23:02,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:23:02,230 INFO L481 AbstractCegarLoop]: Abstraction has 1182 states and 1294 transitions. [2020-10-23 20:23:02,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:23:02,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1294 transitions. [2020-10-23 20:23:02,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-23 20:23:02,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:23:02,236 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:23:02,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 20:23:02,237 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:23:02,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:23:02,237 INFO L82 PathProgramCache]: Analyzing trace with hash -714634057, now seen corresponding path program 1 times [2020-10-23 20:23:02,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:23:02,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [405311173] [2020-10-23 20:23:02,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:23:02,575 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 91 [2020-10-23 20:23:02,711 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 20:23:03,045 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 93 [2020-10-23 20:23:03,159 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 20:23:03,485 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 91 [2020-10-23 20:23:03,639 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 20:23:04,039 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2020-10-23 20:23:04,170 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 20:23:04,499 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 88 [2020-10-23 20:23:04,891 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 84 [2020-10-23 20:23:05,282 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 85 [2020-10-23 20:23:05,677 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 84 [2020-10-23 20:23:06,074 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 92 [2020-10-23 20:23:06,487 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 88 [2020-10-23 20:23:06,881 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 92 [2020-10-23 20:23:07,261 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 85 [2020-10-23 20:23:07,660 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 88 [2020-10-23 20:23:08,047 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 85 [2020-10-23 20:23:08,814 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2020-10-23 20:23:09,480 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:23:10,104 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2020-10-23 20:23:10,711 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2020-10-23 20:23:11,380 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:23:12,030 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:23:12,695 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2020-10-23 20:23:13,357 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:23:13,360 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:14,002 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 20:23:14,636 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 205 [2020-10-23 20:23:15,289 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 205 [2020-10-23 20:23:15,940 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 20:23:16,623 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 20:23:17,270 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 205 [2020-10-23 20:23:17,927 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 205 [2020-10-23 20:23:18,625 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 20:23:18,628 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:19,299 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2020-10-23 20:23:19,936 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:23:20,606 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2020-10-23 20:23:21,257 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:23:21,917 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:23:22,571 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:23:23,209 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2020-10-23 20:23:23,852 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2020-10-23 20:23:23,855 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:24,510 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:23:25,157 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:23:25,792 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:23:26,456 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:23:27,101 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:23:27,770 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:23:28,433 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:23:29,075 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:23:29,078 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:30,165 WARN L193 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 270 [2020-10-23 20:23:31,199 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 270 [2020-10-23 20:23:32,188 WARN L193 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 270 [2020-10-23 20:23:33,149 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 270 [2020-10-23 20:23:33,156 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:34,088 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 266 [2020-10-23 20:23:35,020 WARN L193 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 266 [2020-10-23 20:23:35,983 WARN L193 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 266 [2020-10-23 20:23:36,923 WARN L193 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 266 [2020-10-23 20:23:36,932 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:37,885 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 268 [2020-10-23 20:23:38,910 WARN L193 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 268 [2020-10-23 20:23:39,884 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 268 [2020-10-23 20:23:40,844 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 268 [2020-10-23 20:23:40,851 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:41,768 WARN L193 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 266 [2020-10-23 20:23:42,710 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 266 [2020-10-23 20:23:43,662 WARN L193 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 266 [2020-10-23 20:23:44,621 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 266 [2020-10-23 20:23:44,628 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:45,356 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 212 [2020-10-23 20:23:46,077 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 212 [2020-10-23 20:23:46,810 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 212 [2020-10-23 20:23:47,550 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 212 [2020-10-23 20:23:48,290 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 212 [2020-10-23 20:23:49,037 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 212 [2020-10-23 20:23:49,787 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 212 [2020-10-23 20:23:50,510 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 212 [2020-10-23 20:23:50,513 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:51,487 WARN L193 SmtUtils]: Spent 893.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 274 [2020-10-23 20:23:52,478 WARN L193 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 274 [2020-10-23 20:23:53,472 WARN L193 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 274 [2020-10-23 20:23:54,493 WARN L193 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 274 [2020-10-23 20:23:54,500 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:55,265 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2020-10-23 20:23:55,994 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2020-10-23 20:23:56,757 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2020-10-23 20:23:57,518 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2020-10-23 20:23:58,272 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2020-10-23 20:23:59,044 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2020-10-23 20:23:59,806 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2020-10-23 20:24:00,546 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 213 [2020-10-23 20:24:00,551 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:24:01,514 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 273 [2020-10-23 20:24:02,460 WARN L193 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 273 [2020-10-23 20:24:03,429 WARN L193 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 273 [2020-10-23 20:24:04,421 WARN L193 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 273 [2020-10-23 20:24:04,428 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:24:05,413 WARN L193 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 274 [2020-10-23 20:24:06,427 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 274 [2020-10-23 20:24:07,411 WARN L193 SmtUtils]: Spent 893.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 274 [2020-10-23 20:24:08,423 WARN L193 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 274 [2020-10-23 20:24:08,428 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:24:09,440 WARN L193 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 272 [2020-10-23 20:24:10,416 WARN L193 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 272 [2020-10-23 20:24:11,453 WARN L193 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 272 [2020-10-23 20:24:12,435 WARN L193 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 272 [2020-10-23 20:24:12,442 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:24:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:24:12,801 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:24:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:24:13,095 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:24:13,316 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:24:13,317 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:24:13,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 20:24:13,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:24:13 BoogieIcfgContainer [2020-10-23 20:24:13,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:24:13,384 INFO L168 Benchmark]: Toolchain (without parser) took 123195.45 ms. Allocated memory was 151.0 MB in the beginning and 702.5 MB in the end (delta: 551.6 MB). Free memory was 126.0 MB in the beginning and 308.4 MB in the end (delta: -182.4 MB). Peak memory consumption was 369.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:24:13,385 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:24:13,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.63 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 103.1 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:24:13,386 INFO L168 Benchmark]: Boogie Preprocessor took 126.85 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 99.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:24:13,386 INFO L168 Benchmark]: RCFGBuilder took 1727.21 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 99.2 MB in the beginning and 110.4 MB in the end (delta: -11.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:24:13,386 INFO L168 Benchmark]: TraceAbstraction took 120633.45 ms. Allocated memory was 181.4 MB in the beginning and 702.5 MB in the end (delta: 521.1 MB). Free memory was 109.8 MB in the beginning and 308.4 MB in the end (delta: -198.6 MB). Peak memory consumption was 322.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:24:13,389 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 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 695.63 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 103.1 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 126.85 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 99.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1727.21 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 99.2 MB in the beginning and 110.4 MB in the end (delta: -11.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 120633.45 ms. Allocated memory was 181.4 MB in the beginning and 702.5 MB in the end (delta: 521.1 MB). Free memory was 109.8 MB in the beginning and 308.4 MB in the end (delta: -198.6 MB). Peak memory consumption was 322.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L89] int cleanupTimeShifts = 4; [L198] int waterLevel = 1; [L199] int methaneLevelCritical = 0; [L470] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L668] int switchedOnBeforeTS ; [L784] int pumpRunning = 0; [L785] int systemActive = 1; [L169] int retValue_acc ; [L170] int tmp ; [L174] FCALL select_helpers() [L175] FCALL select_features() [L176] CALL, EXPR valid_product() [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L176] RET, EXPR valid_product() [L176] tmp = valid_product() [L178] COND TRUE \read(tmp) [L180] FCALL setup() [L181] CALL runTest() [L162] CALL __utac_acc__Specification5_spec__1() [L673] switchedOnBeforeTS = 0 [L162] RET __utac_acc__Specification5_spec__1() [L163] CALL test() [L718] int splverifierCounter ; [L719] int tmp ; [L720] int tmp___0 ; [L721] int tmp___1 ; [L722] int tmp___2 ; [L725] splverifierCounter = 0 [L727] COND TRUE 1 [L729] COND TRUE splverifierCounter < 4 [L735] tmp = __VERIFIER_nondet_int() [L737] COND TRUE \read(tmp) [L739] CALL waterRise() [L216] COND TRUE waterLevel < 2 [L217] waterLevel = waterLevel + 1 [L739] RET waterRise() [L745] tmp___0 = __VERIFIER_nondet_int() [L747] COND FALSE !(\read(tmp___0)) [L755] tmp___2 = __VERIFIER_nondet_int() [L757] COND TRUE \read(tmp___2) [L770] CALL timeShift() [L792] CALL __utac_acc__Specification5_spec__2() [L682] CALL, EXPR isPumpRunning() [L919] int retValue_acc ; [L922] retValue_acc = pumpRunning [L923] return (retValue_acc); [L682] RET, EXPR isPumpRunning() [L682] switchedOnBeforeTS = isPumpRunning() [L792] RET __utac_acc__Specification5_spec__2() [L794] COND FALSE !(\read(pumpRunning)) [L801] COND TRUE \read(systemActive) [L803] CALL processEnvironment() [L849] int tmp ; [L852] COND FALSE !(\read(pumpRunning)) [L867] CALL processEnvironment__wrappee__highWaterSensor() [L823] int tmp ; [L826] COND TRUE ! pumpRunning [L828] CALL, EXPR isHighWaterLevel() [L964] int retValue_acc ; [L965] int tmp ; [L966] int tmp___0 ; [L970] CALL, EXPR isHighWaterSensorDry() [L278] int retValue_acc ; [L281] COND FALSE !(waterLevel < 2) [L285] retValue_acc = 0 [L286] return (retValue_acc); [L970] RET, EXPR isHighWaterSensorDry() [L970] tmp = isHighWaterSensorDry() [L972] COND FALSE !(\read(tmp)) [L975] tmp___0 = 1 [L977] retValue_acc = tmp___0 [L978] return (retValue_acc); [L828] RET, EXPR isHighWaterLevel() [L828] tmp = isHighWaterLevel() [L830] COND TRUE \read(tmp) [L832] CALL activatePump() [L883] int tmp ; [L887] CALL, EXPR isMethaneAlarm() [L908] int retValue_acc ; [L912] CALL, EXPR isMethaneLevelCritical() [L237] int retValue_acc ; [L240] retValue_acc = methaneLevelCritical [L241] return (retValue_acc); [L912] RET, EXPR isMethaneLevelCritical() [L912] retValue_acc = isMethaneLevelCritical() [L914] return (retValue_acc); [L887] RET, EXPR isMethaneAlarm() [L887] tmp = isMethaneAlarm() [L889] COND FALSE !(\read(tmp)) [L893] CALL activatePump__wrappee__lowWaterSensor() [L877] pumpRunning = 1 [L893] RET activatePump__wrappee__lowWaterSensor() [L832] RET activatePump() [L867] RET processEnvironment__wrappee__highWaterSensor() [L803] RET processEnvironment() [L809] CALL __utac_acc__Specification5_spec__3() [L688] int tmp ; [L689] int tmp___0 ; [L693] CALL, EXPR getWaterLevel() [L269] int retValue_acc ; [L272] retValue_acc = waterLevel [L273] return (retValue_acc); [L693] RET, EXPR getWaterLevel() [L693] tmp = getWaterLevel() [L695] COND FALSE !(tmp != 2) [L809] RET __utac_acc__Specification5_spec__3() [L770] RET timeShift() [L727] COND TRUE 1 [L729] COND TRUE splverifierCounter < 4 [L735] tmp = __VERIFIER_nondet_int() [L737] COND FALSE !(\read(tmp)) [L745] tmp___0 = __VERIFIER_nondet_int() [L747] COND FALSE !(\read(tmp___0)) [L755] tmp___2 = __VERIFIER_nondet_int() [L757] COND TRUE \read(tmp___2) [L770] CALL timeShift() [L792] CALL __utac_acc__Specification5_spec__2() [L682] CALL, EXPR isPumpRunning() [L919] int retValue_acc ; [L922] retValue_acc = pumpRunning [L923] return (retValue_acc); [L682] RET, EXPR isPumpRunning() [L682] switchedOnBeforeTS = isPumpRunning() [L792] RET __utac_acc__Specification5_spec__2() [L794] COND TRUE \read(pumpRunning) [L796] CALL lowerWaterLevel() [L204] COND TRUE waterLevel > 0 [L205] waterLevel = waterLevel - 1 [L796] RET lowerWaterLevel() [L801] COND TRUE \read(systemActive) [L803] CALL processEnvironment() [L849] int tmp ; [L852] COND TRUE \read(pumpRunning) [L854] CALL, EXPR isLowWaterLevel() [L983] int retValue_acc ; [L984] int tmp ; [L985] int tmp___0 ; [L989] CALL, EXPR isLowWaterSensorDry() [L292] int retValue_acc ; [L295] retValue_acc = waterLevel == 0 [L296] return (retValue_acc); [L989] RET, EXPR isLowWaterSensorDry() [L989] tmp = isLowWaterSensorDry() [L991] COND TRUE \read(tmp) [L992] tmp___0 = 0 [L996] retValue_acc = tmp___0 [L997] return (retValue_acc); [L854] RET, EXPR isLowWaterLevel() [L854] tmp = isLowWaterLevel() [L856] COND FALSE !(\read(tmp)) [L862] CALL processEnvironment__wrappee__highWaterSensor() [L823] int tmp ; [L826] COND FALSE !(! pumpRunning) [L841] FCALL processEnvironment__wrappee__base() [L862] RET processEnvironment__wrappee__highWaterSensor() [L803] RET processEnvironment() [L809] CALL __utac_acc__Specification5_spec__3() [L688] int tmp ; [L689] int tmp___0 ; [L693] CALL, EXPR getWaterLevel() [L269] int retValue_acc ; [L272] retValue_acc = waterLevel [L273] return (retValue_acc); [L693] RET, EXPR getWaterLevel() [L693] tmp = getWaterLevel() [L695] COND TRUE tmp != 2 [L697] CALL, EXPR isPumpRunning() [L919] int retValue_acc ; [L922] retValue_acc = pumpRunning [L923] return (retValue_acc); [L697] RET, EXPR isPumpRunning() [L697] tmp___0 = isPumpRunning() [L699] COND TRUE \read(tmp___0) [L700] COND TRUE ! switchedOnBeforeTS [L702] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec5_product57.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 672 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 120.5s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 41.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2664 SDtfs, 6127 SDslu, 4926 SDs, 0 SdLazy, 10195 SolverSat, 1742 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 465 GetRequests, 307 SyntacticMatches, 4 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 20.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1182occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 654 StatesRemovedByMinimization, 9 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...