/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_spec1_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 23:46:25,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 23:46:25,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 23:46:25,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 23:46:25,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 23:46:25,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 23:46:25,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 23:46:25,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 23:46:25,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 23:46:25,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 23:46:25,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 23:46:25,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 23:46:25,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 23:46:25,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 23:46:25,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 23:46:25,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 23:46:25,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 23:46:25,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 23:46:25,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 23:46:25,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 23:46:25,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 23:46:25,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 23:46:25,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 23:46:25,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 23:46:25,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 23:46:25,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 23:46:25,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 23:46:25,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 23:46:25,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 23:46:25,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 23:46:25,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 23:46:25,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 23:46:25,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 23:46:25,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 23:46:25,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 23:46:25,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 23:46:25,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 23:46:25,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 23:46:25,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 23:46:25,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 23:46:25,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 23:46:25,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-06 23:46:25,451 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 23:46:25,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 23:46:25,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 23:46:25,456 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 23:46:25,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 23:46:25,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 23:46:25,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 23:46:25,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 23:46:25,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 23:46:25,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 23:46:25,459 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 23:46:25,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 23:46:25,459 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 23:46:25,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 23:46:25,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 23:46:25,460 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-06 23:46:25,460 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 23:46:25,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 23:46:25,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 23:46:25,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 23:46:25,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-06 23:46:25,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 23:46:25,461 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 23:46:25,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 23:46:25,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 23:46:25,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 23:46:25,892 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 23:46:25,892 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 23:46:25,893 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c [2020-11-06 23:46:25,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16e44eb52/b395b9d859d242b18ff142d5cf654aca/FLAGc93808ae8 [2020-11-06 23:46:26,775 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 23:46:26,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c [2020-11-06 23:46:26,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16e44eb52/b395b9d859d242b18ff142d5cf654aca/FLAGc93808ae8 [2020-11-06 23:46:27,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16e44eb52/b395b9d859d242b18ff142d5cf654aca [2020-11-06 23:46:27,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 23:46:27,073 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 23:46:27,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 23:46:27,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 23:46:27,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 23:46:27,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:46:27" (1/1) ... [2020-11-06 23:46:27,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18227538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:27, skipping insertion in model container [2020-11-06 23:46:27,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:46:27" (1/1) ... [2020-11-06 23:46:27,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 23:46:27,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 23:46:27,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:46:27,565 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 23:46:27,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:46:27,698 INFO L208 MainTranslator]: Completed translation [2020-11-06 23:46:27,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:27 WrapperNode [2020-11-06 23:46:27,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 23:46:27,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 23:46:27,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 23:46:27,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 23:46:27,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:27" (1/1) ... [2020-11-06 23:46:27,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:27" (1/1) ... [2020-11-06 23:46:27,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:27" (1/1) ... [2020-11-06 23:46:27,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:27" (1/1) ... [2020-11-06 23:46:27,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:27" (1/1) ... [2020-11-06 23:46:27,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:27" (1/1) ... [2020-11-06 23:46:27,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:27" (1/1) ... [2020-11-06 23:46:27,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 23:46:27,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 23:46:27,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 23:46:27,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 23:46:27,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:27" (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 [2020-11-06 23:46:28,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 23:46:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 23:46:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-06 23:46:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 23:46:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-06 23:46:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-06 23:46:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-06 23:46:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-06 23:46:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-06 23:46:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-06 23:46:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-06 23:46:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-06 23:46:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-06 23:46:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-06 23:46:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-06 23:46:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-06 23:46:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-06 23:46:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-06 23:46:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-06 23:46:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-06 23:46:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-06 23:46:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-06 23:46:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-06 23:46:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-06 23:46:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-06 23:46:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-06 23:46:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-06 23:46:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-06 23:46:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-11-06 23:46:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-06 23:46:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-06 23:46:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-06 23:46:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-06 23:46:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 23:46:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-06 23:46:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-06 23:46:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-06 23:46:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-06 23:46:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-06 23:46:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-06 23:46:28,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-06 23:46:28,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-06 23:46:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 23:46:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 23:46:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 23:46:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 23:46:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 23:46:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-06 23:46:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-06 23:46:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-06 23:46:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-06 23:46:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-06 23:46:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-06 23:46:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-06 23:46:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-06 23:46:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-06 23:46:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-06 23:46:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-06 23:46:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-06 23:46:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-06 23:46:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-06 23:46:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-06 23:46:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-06 23:46:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-11-06 23:46:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-06 23:46:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-06 23:46:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-06 23:46:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-06 23:46:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-06 23:46:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-06 23:46:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 23:46:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-06 23:46:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-06 23:46:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 23:46:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 23:46:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 23:46:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 23:46:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-06 23:46:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 23:46:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-06 23:46:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-06 23:46:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 23:46:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-06 23:46:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-06 23:46:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-06 23:46:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-06 23:46:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-06 23:46:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-06 23:46:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-06 23:46:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-06 23:46:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-06 23:46:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-06 23:46:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-06 23:46:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 23:46:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-06 23:46:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 23:46:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 23:46:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 23:46:29,690 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 23:46:29,690 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-06 23:46:29,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:46:29 BoogieIcfgContainer [2020-11-06 23:46:29,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 23:46:29,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 23:46:29,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 23:46:29,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 23:46:29,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:46:27" (1/3) ... [2020-11-06 23:46:29,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4744025e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:46:29, skipping insertion in model container [2020-11-06 23:46:29,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:27" (2/3) ... [2020-11-06 23:46:29,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4744025e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:46:29, skipping insertion in model container [2020-11-06 23:46:29,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:46:29" (3/3) ... [2020-11-06 23:46:29,703 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product51.cil.c [2020-11-06 23:46:29,719 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-06 23:46:29,723 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-06 23:46:29,736 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-06 23:46:29,760 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 23:46:29,760 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 23:46:29,761 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-06 23:46:29,761 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 23:46:29,761 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 23:46:29,761 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 23:46:29,761 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 23:46:29,761 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 23:46:29,784 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states. [2020-11-06 23:46:29,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-06 23:46:29,804 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:29,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:29,806 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]=== [2020-11-06 23:46:29,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:29,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1393592031, now seen corresponding path program 1 times [2020-11-06 23:46:29,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:29,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117818819] [2020-11-06 23:46:29,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:29,904 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:31,056 WARN L194 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:31,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:31,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:31,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:31,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:31,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:31,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:46:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:31,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-06 23:46:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:31,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:31,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117818819] [2020-11-06 23:46:31,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:31,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 23:46:31,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161808966] [2020-11-06 23:46:31,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 23:46:31,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:31,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 23:46:31,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 23:46:31,301 INFO L87 Difference]: Start difference. First operand 333 states. Second operand 3 states. [2020-11-06 23:46:33,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:33,857 INFO L93 Difference]: Finished difference Result 513 states and 610 transitions. [2020-11-06 23:46:33,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 23:46:33,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-06 23:46:33,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:33,877 INFO L225 Difference]: With dead ends: 513 [2020-11-06 23:46:33,877 INFO L226 Difference]: Without dead ends: 316 [2020-11-06 23:46:33,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 23:46:33,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-11-06 23:46:34,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 273. [2020-11-06 23:46:34,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-11-06 23:46:34,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 297 transitions. [2020-11-06 23:46:34,046 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 297 transitions. Word has length 148 [2020-11-06 23:46:34,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:34,047 INFO L481 AbstractCegarLoop]: Abstraction has 273 states and 297 transitions. [2020-11-06 23:46:34,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 23:46:34,047 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 297 transitions. [2020-11-06 23:46:34,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-11-06 23:46:34,052 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:34,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:34,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 23:46:34,053 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]=== [2020-11-06 23:46:34,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:34,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1630788523, now seen corresponding path program 1 times [2020-11-06 23:46:34,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:34,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962966419] [2020-11-06 23:46:34,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:34,060 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:34,747 WARN L194 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:34,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:34,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:34,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:34,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:34,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:34,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-06 23:46:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:34,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-06 23:46:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:34,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:34,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962966419] [2020-11-06 23:46:34,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:34,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 23:46:34,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835232265] [2020-11-06 23:46:34,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 23:46:34,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:34,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 23:46:34,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 23:46:34,885 INFO L87 Difference]: Start difference. First operand 273 states and 297 transitions. Second operand 4 states. [2020-11-06 23:46:36,152 WARN L194 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:38,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:38,063 INFO L93 Difference]: Finished difference Result 421 states and 473 transitions. [2020-11-06 23:46:38,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 23:46:38,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-11-06 23:46:38,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:38,071 INFO L225 Difference]: With dead ends: 421 [2020-11-06 23:46:38,071 INFO L226 Difference]: Without dead ends: 299 [2020-11-06 23:46:38,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-06 23:46:38,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-11-06 23:46:38,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 263. [2020-11-06 23:46:38,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-11-06 23:46:38,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 284 transitions. [2020-11-06 23:46:38,187 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 284 transitions. Word has length 149 [2020-11-06 23:46:38,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:38,188 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 284 transitions. [2020-11-06 23:46:38,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 23:46:38,188 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 284 transitions. [2020-11-06 23:46:38,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-11-06 23:46:38,191 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:38,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:38,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 23:46:38,192 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]=== [2020-11-06 23:46:38,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:38,193 INFO L82 PathProgramCache]: Analyzing trace with hash 886122188, now seen corresponding path program 1 times [2020-11-06 23:46:38,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:38,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411212497] [2020-11-06 23:46:38,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:38,197 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:38,957 WARN L194 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:38,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:39,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:39,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:39,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:39,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:39,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-06 23:46:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:39,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-06 23:46:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:39,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:39,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411212497] [2020-11-06 23:46:39,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:39,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-06 23:46:39,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206254432] [2020-11-06 23:46:39,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-06 23:46:39,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:39,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-06 23:46:39,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-06 23:46:39,220 INFO L87 Difference]: Start difference. First operand 263 states and 284 transitions. Second operand 9 states. [2020-11-06 23:46:40,250 WARN L194 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:41,051 WARN L194 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:41,745 WARN L194 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:46:42,451 WARN L194 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:43,150 WARN L194 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:43,875 WARN L194 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:45,743 WARN L194 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:49,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:49,781 INFO L93 Difference]: Finished difference Result 691 states and 794 transitions. [2020-11-06 23:46:49,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-06 23:46:49,782 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-11-06 23:46:49,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:49,787 INFO L225 Difference]: With dead ends: 691 [2020-11-06 23:46:49,787 INFO L226 Difference]: Without dead ends: 543 [2020-11-06 23:46:49,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-06 23:46:49,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-11-06 23:46:50,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 474. [2020-11-06 23:46:50,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-11-06 23:46:50,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 530 transitions. [2020-11-06 23:46:50,116 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 530 transitions. Word has length 158 [2020-11-06 23:46:50,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:50,118 INFO L481 AbstractCegarLoop]: Abstraction has 474 states and 530 transitions. [2020-11-06 23:46:50,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-06 23:46:50,118 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 530 transitions. [2020-11-06 23:46:50,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-11-06 23:46:50,122 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:50,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:50,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 23:46:50,123 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]=== [2020-11-06 23:46:50,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:50,124 INFO L82 PathProgramCache]: Analyzing trace with hash -799517655, now seen corresponding path program 1 times [2020-11-06 23:46:50,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:50,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633132827] [2020-11-06 23:46:50,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:50,130 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:50,821 WARN L194 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:50,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:50,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:50,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:50,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:50,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:50,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-06 23:46:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:50,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-06 23:46:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:50,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-06 23:46:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:50,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:50,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633132827] [2020-11-06 23:46:50,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:50,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-06 23:46:50,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467670645] [2020-11-06 23:46:50,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-06 23:46:50,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:50,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-06 23:46:50,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-06 23:46:50,985 INFO L87 Difference]: Start difference. First operand 474 states and 530 transitions. Second operand 9 states. [2020-11-06 23:46:52,006 WARN L194 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:54,713 WARN L194 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:55,476 WARN L194 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:56,343 WARN L194 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:57,040 WARN L194 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:57,736 WARN L194 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:58,388 WARN L194 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:59,056 WARN L194 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:00,208 WARN L194 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:02,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:47:02,263 INFO L93 Difference]: Finished difference Result 1306 states and 1561 transitions. [2020-11-06 23:47:02,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 23:47:02,269 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-11-06 23:47:02,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:47:02,276 INFO L225 Difference]: With dead ends: 1306 [2020-11-06 23:47:02,276 INFO L226 Difference]: Without dead ends: 947 [2020-11-06 23:47:02,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-06 23:47:02,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2020-11-06 23:47:02,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 793. [2020-11-06 23:47:02,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2020-11-06 23:47:02,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 900 transitions. [2020-11-06 23:47:02,681 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 900 transitions. Word has length 167 [2020-11-06 23:47:02,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:47:02,682 INFO L481 AbstractCegarLoop]: Abstraction has 793 states and 900 transitions. [2020-11-06 23:47:02,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-06 23:47:02,682 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 900 transitions. [2020-11-06 23:47:02,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-11-06 23:47:02,686 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:47:02,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:47:02,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 23:47:02,687 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]=== [2020-11-06 23:47:02,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:47:02,687 INFO L82 PathProgramCache]: Analyzing trace with hash 541816732, now seen corresponding path program 1 times [2020-11-06 23:47:02,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:47:02,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123010320] [2020-11-06 23:47:02,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:47:02,691 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:47:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:03,382 WARN L194 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:47:03,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:47:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:03,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:47:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:03,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:47:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:03,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:47:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:03,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:47:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:03,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:47:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:03,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-06 23:47:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:03,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-06 23:47:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:03,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-11-06 23:47:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:03,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:47:03,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123010320] [2020-11-06 23:47:03,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:47:03,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 23:47:03,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206006900] [2020-11-06 23:47:03,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 23:47:03,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:47:03,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 23:47:03,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-06 23:47:03,617 INFO L87 Difference]: Start difference. First operand 793 states and 900 transitions. Second operand 10 states. [2020-11-06 23:47:04,655 WARN L194 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:47:07,046 WARN L194 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:07,800 WARN L194 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:47:08,567 WARN L194 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:09,347 WARN L194 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:47:10,023 WARN L194 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:11,324 WARN L194 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:47:12,054 WARN L194 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:12,961 WARN L194 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:15,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:47:15,342 INFO L93 Difference]: Finished difference Result 2035 states and 2504 transitions. [2020-11-06 23:47:15,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 23:47:15,344 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-11-06 23:47:15,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:47:15,354 INFO L225 Difference]: With dead ends: 2035 [2020-11-06 23:47:15,354 INFO L226 Difference]: Without dead ends: 1357 [2020-11-06 23:47:15,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-11-06 23:47:15,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2020-11-06 23:47:15,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1095. [2020-11-06 23:47:15,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1095 states. [2020-11-06 23:47:15,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1263 transitions. [2020-11-06 23:47:15,854 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1263 transitions. Word has length 172 [2020-11-06 23:47:15,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:47:15,855 INFO L481 AbstractCegarLoop]: Abstraction has 1095 states and 1263 transitions. [2020-11-06 23:47:15,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 23:47:15,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1263 transitions. [2020-11-06 23:47:15,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-11-06 23:47:15,860 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:47:15,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:47:15,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-06 23:47:15,861 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]=== [2020-11-06 23:47:15,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:47:15,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1679444909, now seen corresponding path program 1 times [2020-11-06 23:47:15,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:47:15,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629055815] [2020-11-06 23:47:15,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:47:15,865 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:47:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,548 WARN L194 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:47:16,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:47:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:47:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:47:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:47:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:47:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:47:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-06 23:47:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:47:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:47:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:47:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:47:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-11-06 23:47:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-11-06 23:47:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:47:16,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629055815] [2020-11-06 23:47:16,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:47:16,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 23:47:16,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247971041] [2020-11-06 23:47:16,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 23:47:16,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:47:16,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 23:47:16,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-06 23:47:16,779 INFO L87 Difference]: Start difference. First operand 1095 states and 1263 transitions. Second operand 10 states. [2020-11-06 23:47:19,401 WARN L194 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:20,168 WARN L194 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:47:20,952 WARN L194 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-06 23:47:21,711 WARN L194 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:22,504 WARN L194 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:47:23,188 WARN L194 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:25,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:47:25,668 INFO L93 Difference]: Finished difference Result 2479 states and 3033 transitions. [2020-11-06 23:47:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-06 23:47:25,669 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 201 [2020-11-06 23:47:25,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:47:25,679 INFO L225 Difference]: With dead ends: 2479 [2020-11-06 23:47:25,679 INFO L226 Difference]: Without dead ends: 1499 [2020-11-06 23:47:25,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-11-06 23:47:25,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2020-11-06 23:47:26,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1133. [2020-11-06 23:47:26,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1133 states. [2020-11-06 23:47:26,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1303 transitions. [2020-11-06 23:47:26,160 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1303 transitions. Word has length 201 [2020-11-06 23:47:26,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:47:26,160 INFO L481 AbstractCegarLoop]: Abstraction has 1133 states and 1303 transitions. [2020-11-06 23:47:26,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 23:47:26,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1303 transitions. [2020-11-06 23:47:26,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-11-06 23:47:26,165 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:47:26,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:47:26,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-06 23:47:26,166 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]=== [2020-11-06 23:47:26,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:47:26,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1804649293, now seen corresponding path program 1 times [2020-11-06 23:47:26,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:47:26,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1900118302] [2020-11-06 23:47:26,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:47:26,170 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:47:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:26,875 WARN L194 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:47:26,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:47:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:26,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:47:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:26,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:47:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:26,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:47:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:26,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:47:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:26,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:47:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:27,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-06 23:47:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:27,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:47:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:27,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:47:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:27,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:47:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:27,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:47:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:27,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-11-06 23:47:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:27,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-11-06 23:47:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:27,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:47:27,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1900118302] [2020-11-06 23:47:27,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:47:27,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-06 23:47:27,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657714899] [2020-11-06 23:47:27,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-06 23:47:27,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:47:27,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-06 23:47:27,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-11-06 23:47:27,211 INFO L87 Difference]: Start difference. First operand 1133 states and 1303 transitions. Second operand 13 states. [2020-11-06 23:47:28,475 WARN L194 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:29,160 WARN L194 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:47:29,904 WARN L194 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:30,609 WARN L194 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:47:31,244 WARN L194 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:33,011 WARN L194 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:33,727 WARN L194 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:47:34,500 WARN L194 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:35,292 WARN L194 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:47:36,024 WARN L194 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:39,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:47:39,106 INFO L93 Difference]: Finished difference Result 2561 states and 3172 transitions. [2020-11-06 23:47:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-06 23:47:39,107 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 201 [2020-11-06 23:47:39,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:47:39,117 INFO L225 Difference]: With dead ends: 2561 [2020-11-06 23:47:39,117 INFO L226 Difference]: Without dead ends: 1543 [2020-11-06 23:47:39,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-11-06 23:47:39,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2020-11-06 23:47:39,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1157. [2020-11-06 23:47:39,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2020-11-06 23:47:39,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1327 transitions. [2020-11-06 23:47:39,707 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1327 transitions. Word has length 201 [2020-11-06 23:47:39,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:47:39,707 INFO L481 AbstractCegarLoop]: Abstraction has 1157 states and 1327 transitions. [2020-11-06 23:47:39,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-06 23:47:39,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1327 transitions. [2020-11-06 23:47:39,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-11-06 23:47:39,712 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:47:39,712 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:47:39,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-06 23:47:39,713 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]=== [2020-11-06 23:47:39,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:47:39,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1114155152, now seen corresponding path program 1 times [2020-11-06 23:47:39,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:47:39,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526586113] [2020-11-06 23:47:39,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:47:39,720 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:47:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,428 WARN L194 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:47:40,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:47:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:47:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:47:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:47:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:47:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:47:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-06 23:47:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:47:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:47:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:47:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:47:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-11-06 23:47:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-11-06 23:47:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:47:40,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526586113] [2020-11-06 23:47:40,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:47:40,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 23:47:40,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606212396] [2020-11-06 23:47:40,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-06 23:47:40,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:47:40,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-06 23:47:40,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-06 23:47:40,637 INFO L87 Difference]: Start difference. First operand 1157 states and 1327 transitions. Second operand 7 states. [2020-11-06 23:47:41,677 WARN L194 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:47:42,882 WARN L194 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:47:48,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:47:48,622 INFO L93 Difference]: Finished difference Result 3860 states and 4807 transitions. [2020-11-06 23:47:48,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-06 23:47:48,623 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2020-11-06 23:47:48,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:47:48,639 INFO L225 Difference]: With dead ends: 3860 [2020-11-06 23:47:48,639 INFO L226 Difference]: Without dead ends: 2818 [2020-11-06 23:47:48,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-11-06 23:47:48,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2020-11-06 23:47:49,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2313. [2020-11-06 23:47:49,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2313 states. [2020-11-06 23:47:49,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 2683 transitions. [2020-11-06 23:47:49,824 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 2683 transitions. Word has length 201 [2020-11-06 23:47:49,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:47:49,825 INFO L481 AbstractCegarLoop]: Abstraction has 2313 states and 2683 transitions. [2020-11-06 23:47:49,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-06 23:47:49,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 2683 transitions. [2020-11-06 23:47:49,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-11-06 23:47:49,831 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:47:49,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:47:49,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-06 23:47:49,831 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]=== [2020-11-06 23:47:49,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:47:49,832 INFO L82 PathProgramCache]: Analyzing trace with hash -2141597272, now seen corresponding path program 1 times [2020-11-06 23:47:49,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:47:49,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359843173] [2020-11-06 23:47:49,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:47:49,835 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:47:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:47:49,910 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:47:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:47:50,031 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:47:50,317 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-06 23:47:50,317 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 23:47:50,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-06 23:47:50,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:47:50 BoogieIcfgContainer [2020-11-06 23:47:50,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 23:47:50,346 INFO L168 Benchmark]: Toolchain (without parser) took 83277.74 ms. Allocated memory was 154.1 MB in the beginning and 701.5 MB in the end (delta: 547.4 MB). Free memory was 130.3 MB in the beginning and 610.2 MB in the end (delta: -480.0 MB). Peak memory consumption was 443.2 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:50,347 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 154.1 MB. Free memory is still 128.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 23:47:50,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 624.66 ms. Allocated memory is still 154.1 MB. Free memory was 129.7 MB in the beginning and 107.9 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:50,348 INFO L168 Benchmark]: Boogie Preprocessor took 212.81 ms. Allocated memory is still 154.1 MB. Free memory was 107.7 MB in the beginning and 135.6 MB in the end (delta: -27.8 MB). Peak memory consumption was 6.6 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:50,349 INFO L168 Benchmark]: RCFGBuilder took 1776.54 ms. Allocated memory is still 154.1 MB. Free memory was 135.6 MB in the beginning and 90.8 MB in the end (delta: 44.8 MB). Peak memory consumption was 66.3 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:50,350 INFO L168 Benchmark]: TraceAbstraction took 80649.35 ms. Allocated memory was 154.1 MB in the beginning and 701.5 MB in the end (delta: 547.4 MB). Free memory was 90.2 MB in the beginning and 610.2 MB in the end (delta: -520.0 MB). Peak memory consumption was 402.8 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:50,353 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 154.1 MB. Free memory is still 128.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 624.66 ms. Allocated memory is still 154.1 MB. Free memory was 129.7 MB in the beginning and 107.9 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 212.81 ms. Allocated memory is still 154.1 MB. Free memory was 107.7 MB in the beginning and 135.6 MB in the end (delta: -27.8 MB). Peak memory consumption was 6.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1776.54 ms. Allocated memory is still 154.1 MB. Free memory was 135.6 MB in the beginning and 90.8 MB in the end (delta: 44.8 MB). Peak memory consumption was 66.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 80649.35 ms. Allocated memory was 154.1 MB in the beginning and 701.5 MB in the end (delta: 547.4 MB). Free memory was 90.2 MB in the beginning and 610.2 MB in the end (delta: -520.0 MB). Peak memory consumption was 402.8 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: [L123] int pumpRunning = 0; [L124] int systemActive = 1; [L505] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L775] int cleanupTimeShifts = 4; [L872] int waterLevel = 1; [L873] int methaneLevelCritical = 0; [L848] int retValue_acc ; [L849] int tmp ; [L853] FCALL select_helpers() [L854] FCALL select_features() [L855] CALL, EXPR valid_product() [L740] int retValue_acc ; [L743] retValue_acc = 1 [L744] return (retValue_acc); [L855] RET, EXPR valid_product() [L855] tmp = valid_product() [L857] COND TRUE \read(tmp) [L859] FCALL setup() [L860] CALL runTest() [L842] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L890] COND TRUE waterLevel < 2 [L891] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND TRUE \read(tmp___0) [L79] CALL changeMethaneLevel() [L902] COND FALSE !(\read(methaneLevelCritical)) [L905] methaneLevelCritical = 1 [L79] RET changeMethaneLevel() [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L102] CALL timeShift() [L131] COND FALSE !(\read(pumpRunning)) [L138] COND TRUE \read(systemActive) [L140] CALL processEnvironment() [L186] int tmp ; [L189] COND FALSE !(\read(pumpRunning)) [L204] CALL processEnvironment__wrappee__highWaterSensor() [L160] int tmp ; [L163] COND TRUE ! pumpRunning [L165] CALL, EXPR isHighWaterLevel() [L283] int retValue_acc ; [L284] int tmp ; [L285] int tmp___0 ; [L289] CALL, EXPR isHighWaterSensorDry() [L952] int retValue_acc ; [L955] COND FALSE !(waterLevel < 2) [L959] retValue_acc = 0 [L960] return (retValue_acc); [L289] RET, EXPR isHighWaterSensorDry() [L289] tmp = isHighWaterSensorDry() [L291] COND FALSE !(\read(tmp)) [L294] tmp___0 = 1 [L296] retValue_acc = tmp___0 [L297] return (retValue_acc); [L165] RET, EXPR isHighWaterLevel() [L165] tmp = isHighWaterLevel() [L167] COND TRUE \read(tmp) [L169] CALL activatePump() [L214] pumpRunning = 1 [L169] RET activatePump() [L204] RET processEnvironment__wrappee__highWaterSensor() [L140] RET processEnvironment() [L146] CALL __utac_acc__Specification1_spec__1() [L750] int tmp ; [L751] int tmp___0 ; [L755] CALL, EXPR isMethaneLevelCritical() [L911] int retValue_acc ; [L914] retValue_acc = methaneLevelCritical [L915] return (retValue_acc); [L755] RET, EXPR isMethaneLevelCritical() [L755] tmp = isMethaneLevelCritical() [L757] COND TRUE \read(tmp) [L759] CALL, EXPR isPumpRunning() [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); [L759] RET, EXPR isPumpRunning() [L759] tmp___0 = isPumpRunning() [L761] COND TRUE \read(tmp___0) [L763] CALL __automaton_fail() [L706] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product51.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 656 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 80.5s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 68.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2085 SDtfs, 3702 SDslu, 3882 SDs, 0 SdLazy, 8327 SolverSat, 1137 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 299 GetRequests, 188 SyntacticMatches, 4 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 35.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2313occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 1821 StatesRemovedByMinimization, 8 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...