/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_spec3_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:02:35,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:02:35,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:02:35,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:02:35,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:02:35,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:02:35,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:02:35,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:02:35,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:02:35,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:02:35,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:02:35,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:02:35,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:02:35,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:02:35,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:02:35,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:02:35,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:02:35,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:02:35,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:02:35,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:02:35,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:02:35,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:02:35,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:02:35,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:02:35,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:02:35,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:02:35,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:02:35,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:02:35,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:02:35,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:02:35,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:02:35,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:02:35,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:02:35,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:02:35,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:02:35,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:02:35,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:02:35,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:02:35,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:02:35,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:02:35,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:02:35,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:02:35,599 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:02:35,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:02:35,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:02:35,601 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:02:35,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:02:35,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:02:35,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:02:35,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:02:35,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:02:35,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:02:35,603 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:02:35,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:02:35,604 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:02:35,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:02:35,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:02:35,605 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:02:35,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:02:35,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:02:35,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:02:35,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:02:35,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:02:35,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:02:35,607 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:02:35,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:02:36,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:02:36,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:02:36,017 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:02:36,020 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:02:36,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-11-07 00:02:36,109 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ec3b7ecd/9efbd34b6d1248f08534bdf044ca0eaa/FLAG93370871a [2020-11-07 00:02:36,806 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:02:36,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-11-07 00:02:36,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ec3b7ecd/9efbd34b6d1248f08534bdf044ca0eaa/FLAG93370871a [2020-11-07 00:02:37,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ec3b7ecd/9efbd34b6d1248f08534bdf044ca0eaa [2020-11-07 00:02:37,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:02:37,140 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:02:37,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:02:37,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:02:37,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:02:37,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a08ebf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37, skipping insertion in model container [2020-11-07 00:02:37,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:02:37,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:02:37,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:02:37,591 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:02:37,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:02:37,809 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:02:37,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37 WrapperNode [2020-11-07 00:02:37,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:02:37,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:02:37,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:02:37,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:02:37,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:02:37,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:02:37,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:02:37,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:02:37,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (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 [2020-11-07 00:02:38,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:02:38,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:02:38,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:38,026 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:02:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:02:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:02:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:02:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:02:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:02:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:02:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 00:02:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 00:02:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:02:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:02:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:02:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 00:02:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:02:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:02:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:02:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:02:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:02:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:02:38,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 00:02:38,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 00:02:38,036 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:02:38,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:38,036 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:02:38,037 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:02:38,037 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:02:38,038 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:02:38,038 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:02:38,038 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:02:38,038 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:02:38,038 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:02:38,039 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:02:38,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:38,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:38,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:38,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:02:38,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:02:38,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:02:38,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:02:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:02:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:02:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:02:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:02:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:02:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:02:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:02:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:02:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:02:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:02:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:02:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:02:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 00:02:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 00:02:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:02:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:02:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:02:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:02:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:02:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:02:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:02:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:02:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:02:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:02:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 00:02:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 00:02:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 00:02:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:02:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:02:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:02:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:02:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:02:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:02:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:02:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:02:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:02:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:02:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:02:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:02:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:02:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:02:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:02:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:02:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:02:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:02:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:02:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:02:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:02:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:02:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:02:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:02:39,393 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:02:39,393 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:02:39,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:39 BoogieIcfgContainer [2020-11-07 00:02:39,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:02:39,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:02:39,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:02:39,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:02:39,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:02:37" (1/3) ... [2020-11-07 00:02:39,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65acd321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:39, skipping insertion in model container [2020-11-07 00:02:39,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (2/3) ... [2020-11-07 00:02:39,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65acd321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:39, skipping insertion in model container [2020-11-07 00:02:39,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:39" (3/3) ... [2020-11-07 00:02:39,405 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2020-11-07 00:02:39,421 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:02:39,425 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:02:39,438 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:02:39,465 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:02:39,465 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:02:39,466 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:02:39,466 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:02:39,466 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:02:39,466 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:02:39,467 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:02:39,467 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:02:39,493 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states. [2020-11-07 00:02:39,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:02:39,515 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:39,516 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] [2020-11-07 00:02:39,516 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]=== [2020-11-07 00:02:39,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:39,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1867697460, now seen corresponding path program 1 times [2020-11-07 00:02:39,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:39,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791907948] [2020-11-07 00:02:39,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:39,602 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,472 WARN L194 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:40,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:02:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:02:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:40,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791907948] [2020-11-07 00:02:40,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:40,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:02:40,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988316010] [2020-11-07 00:02:40,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:02:40,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:40,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:02:40,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:40,763 INFO L87 Difference]: Start difference. First operand 344 states. Second operand 3 states. [2020-11-07 00:02:42,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:42,801 INFO L93 Difference]: Finished difference Result 535 states and 634 transitions. [2020-11-07 00:02:42,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:02:42,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:02:42,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:42,821 INFO L225 Difference]: With dead ends: 535 [2020-11-07 00:02:42,822 INFO L226 Difference]: Without dead ends: 327 [2020-11-07 00:02:42,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:42,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-11-07 00:02:43,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 284. [2020-11-07 00:02:43,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-11-07 00:02:43,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 309 transitions. [2020-11-07 00:02:43,018 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 309 transitions. Word has length 159 [2020-11-07 00:02:43,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:43,019 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 309 transitions. [2020-11-07 00:02:43,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:02:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 309 transitions. [2020-11-07 00:02:43,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:02:43,025 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:43,026 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] [2020-11-07 00:02:43,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:02:43,026 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]=== [2020-11-07 00:02:43,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:43,027 INFO L82 PathProgramCache]: Analyzing trace with hash -685884784, now seen corresponding path program 1 times [2020-11-07 00:02:43,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:43,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883492794] [2020-11-07 00:02:43,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:43,032 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,591 WARN L194 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:43,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:02:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:02:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:02:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:43,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:43,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [883492794] [2020-11-07 00:02:43,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:43,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:02:43,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640791407] [2020-11-07 00:02:43,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:02:43,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:43,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:02:43,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:02:43,736 INFO L87 Difference]: Start difference. First operand 284 states and 309 transitions. Second operand 4 states. [2020-11-07 00:02:44,653 WARN L194 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:46,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:46,133 INFO L93 Difference]: Finished difference Result 443 states and 497 transitions. [2020-11-07 00:02:46,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:02:46,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:02:46,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:46,140 INFO L225 Difference]: With dead ends: 443 [2020-11-07 00:02:46,140 INFO L226 Difference]: Without dead ends: 310 [2020-11-07 00:02:46,143 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:02:46,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-11-07 00:02:46,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 274. [2020-11-07 00:02:46,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-11-07 00:02:46,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 296 transitions. [2020-11-07 00:02:46,260 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 296 transitions. Word has length 160 [2020-11-07 00:02:46,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:46,261 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 296 transitions. [2020-11-07 00:02:46,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:02:46,261 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 296 transitions. [2020-11-07 00:02:46,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 00:02:46,264 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:46,264 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] [2020-11-07 00:02:46,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:02:46,265 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]=== [2020-11-07 00:02:46,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:46,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1632455881, now seen corresponding path program 1 times [2020-11-07 00:02:46,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:46,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [830510667] [2020-11-07 00:02:46,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:46,270 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:46,755 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:46,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:46,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:46,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:46,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:46,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:46,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:46,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:02:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:46,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:02:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:46,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:46,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [830510667] [2020-11-07 00:02:46,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:46,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:46,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076323771] [2020-11-07 00:02:46,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:46,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:46,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:46,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:46,956 INFO L87 Difference]: Start difference. First operand 274 states and 296 transitions. Second operand 9 states. [2020-11-07 00:02:47,769 WARN L194 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:48,291 WARN L194 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:02:48,694 WARN L194 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 00:02:49,161 WARN L194 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:49,605 WARN L194 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:50,022 WARN L194 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:51,304 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:54,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:54,623 INFO L93 Difference]: Finished difference Result 735 states and 842 transitions. [2020-11-07 00:02:54,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:02:54,630 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 00:02:54,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:54,636 INFO L225 Difference]: With dead ends: 735 [2020-11-07 00:02:54,636 INFO L226 Difference]: Without dead ends: 576 [2020-11-07 00:02:54,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:02:54,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2020-11-07 00:02:54,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 507. [2020-11-07 00:02:54,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-11-07 00:02:54,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 566 transitions. [2020-11-07 00:02:54,865 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 566 transitions. Word has length 169 [2020-11-07 00:02:54,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:54,866 INFO L481 AbstractCegarLoop]: Abstraction has 507 states and 566 transitions. [2020-11-07 00:02:54,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:02:54,866 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 566 transitions. [2020-11-07 00:02:54,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:02:54,870 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:54,870 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] [2020-11-07 00:02:54,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:02:54,871 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]=== [2020-11-07 00:02:54,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:54,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1602882118, now seen corresponding path program 1 times [2020-11-07 00:02:54,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:54,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546351692] [2020-11-07 00:02:54,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:54,875 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:55,294 WARN L194 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:55,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:55,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:55,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:55,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:55,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:55,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:02:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:55,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:02:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:55,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:02:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:55,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:02:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:55,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:55,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546351692] [2020-11-07 00:02:55,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:55,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:55,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895592243] [2020-11-07 00:02:55,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:55,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:55,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:55,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:55,516 INFO L87 Difference]: Start difference. First operand 507 states and 566 transitions. Second operand 9 states. [2020-11-07 00:02:56,197 WARN L194 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:58,808 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:59,284 WARN L194 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:59,788 WARN L194 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:00,298 WARN L194 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:00,725 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:03:01,154 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:01,565 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:02,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:02,726 INFO L93 Difference]: Finished difference Result 1369 states and 1640 transitions. [2020-11-07 00:03:02,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:03:02,730 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:03:02,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:02,737 INFO L225 Difference]: With dead ends: 1369 [2020-11-07 00:03:02,737 INFO L226 Difference]: Without dead ends: 977 [2020-11-07 00:03:02,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:03:02,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-11-07 00:03:03,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 877. [2020-11-07 00:03:03,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2020-11-07 00:03:03,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1003 transitions. [2020-11-07 00:03:03,185 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1003 transitions. Word has length 178 [2020-11-07 00:03:03,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:03,186 INFO L481 AbstractCegarLoop]: Abstraction has 877 states and 1003 transitions. [2020-11-07 00:03:03,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:03:03,186 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1003 transitions. [2020-11-07 00:03:03,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:03:03,191 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:03,192 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] [2020-11-07 00:03:03,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:03:03,192 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]=== [2020-11-07 00:03:03,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:03,193 INFO L82 PathProgramCache]: Analyzing trace with hash 45469637, now seen corresponding path program 1 times [2020-11-07 00:03:03,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:03,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511405745] [2020-11-07 00:03:03,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:03,197 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:03,584 WARN L194 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:03,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:03,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:03,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:03,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:03,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:03,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:03:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:03,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:03:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:03,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:03:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:03,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:03:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:03,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-11-07 00:03:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:03,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:03,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511405745] [2020-11-07 00:03:03,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:03,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:03:03,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434367438] [2020-11-07 00:03:03,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:03:03,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:03,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:03:03,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:03:03,756 INFO L87 Difference]: Start difference. First operand 877 states and 1003 transitions. Second operand 6 states. [2020-11-07 00:03:04,419 WARN L194 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:07,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:07,155 INFO L93 Difference]: Finished difference Result 1964 states and 2358 transitions. [2020-11-07 00:03:07,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 00:03:07,156 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-11-07 00:03:07,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:07,164 INFO L225 Difference]: With dead ends: 1964 [2020-11-07 00:03:07,164 INFO L226 Difference]: Without dead ends: 1202 [2020-11-07 00:03:07,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:03:07,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2020-11-07 00:03:07,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1104. [2020-11-07 00:03:07,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1104 states. [2020-11-07 00:03:07,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1259 transitions. [2020-11-07 00:03:07,664 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1259 transitions. Word has length 183 [2020-11-07 00:03:07,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:07,665 INFO L481 AbstractCegarLoop]: Abstraction has 1104 states and 1259 transitions. [2020-11-07 00:03:07,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:03:07,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1259 transitions. [2020-11-07 00:03:07,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:03:07,668 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:07,669 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] [2020-11-07 00:03:07,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:03:07,669 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]=== [2020-11-07 00:03:07,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:07,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1139388930, now seen corresponding path program 1 times [2020-11-07 00:03:07,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:07,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888786346] [2020-11-07 00:03:07,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:07,674 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:07,749 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:07,823 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:08,024 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:03:08,024 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:03:08,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:03:08,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:03:08 BoogieIcfgContainer [2020-11-07 00:03:08,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:03:08,067 INFO L168 Benchmark]: Toolchain (without parser) took 30931.00 ms. Allocated memory was 151.0 MB in the beginning and 544.2 MB in the end (delta: 393.2 MB). Free memory was 127.1 MB in the beginning and 255.9 MB in the end (delta: -128.7 MB). Peak memory consumption was 265.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:08,072 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 125.5 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:03:08,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.56 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 105.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:08,076 INFO L168 Benchmark]: Boogie Preprocessor took 137.16 ms. Allocated memory is still 151.0 MB. Free memory was 105.0 MB in the beginning and 132.9 MB in the end (delta: -27.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:08,077 INFO L168 Benchmark]: RCFGBuilder took 1446.53 ms. Allocated memory is still 151.0 MB. Free memory was 132.9 MB in the beginning and 86.3 MB in the end (delta: 46.7 MB). Peak memory consumption was 64.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:08,078 INFO L168 Benchmark]: TraceAbstraction took 28665.75 ms. Allocated memory was 151.0 MB in the beginning and 544.2 MB in the end (delta: 393.2 MB). Free memory was 85.8 MB in the beginning and 255.9 MB in the end (delta: -170.1 MB). Peak memory consumption was 223.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:08,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 125.5 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 665.56 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 105.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 137.16 ms. Allocated memory is still 151.0 MB. Free memory was 105.0 MB in the beginning and 132.9 MB in the end (delta: -27.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1446.53 ms. Allocated memory is still 151.0 MB. Free memory was 132.9 MB in the beginning and 86.3 MB in the end (delta: 46.7 MB). Peak memory consumption was 64.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 28665.75 ms. Allocated memory was 151.0 MB in the beginning and 544.2 MB in the end (delta: 393.2 MB). Free memory was 85.8 MB in the beginning and 255.9 MB in the end (delta: -170.1 MB). Peak memory consumption was 223.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L227] int pumpRunning = 0; [L228] int systemActive = 1; [L475] int cleanupTimeShifts = 4; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L551] int retValue_acc ; [L552] int tmp ; [L556] FCALL select_helpers() [L557] FCALL select_features() [L558] CALL, EXPR valid_product() [L600] int retValue_acc ; [L603] retValue_acc = 1 [L604] return (retValue_acc); [L558] RET, EXPR valid_product() [L558] tmp = valid_product() [L560] COND TRUE \read(tmp) [L562] FCALL setup() [L563] CALL runTest() [L542] CALL test() [L157] int splverifierCounter ; [L158] int tmp ; [L159] int tmp___0 ; [L160] int tmp___1 ; [L161] int tmp___2 ; [L164] splverifierCounter = 0 [L166] COND TRUE 1 [L168] COND TRUE splverifierCounter < 4 [L174] tmp = __VERIFIER_nondet_int() [L176] COND TRUE \read(tmp) [L178] CALL waterRise() [L68] COND TRUE waterLevel < 2 [L69] waterLevel = waterLevel + 1 [L178] RET waterRise() [L184] tmp___0 = __VERIFIER_nondet_int() [L186] COND FALSE !(\read(tmp___0)) [L194] tmp___2 = __VERIFIER_nondet_int() [L196] COND FALSE !(\read(tmp___2)) [L200] tmp___1 = __VERIFIER_nondet_int() [L202] COND TRUE \read(tmp___1) [L204] CALL stopSystem() [L428] COND FALSE !(\read(pumpRunning)) [L435] systemActive = 0 [L204] RET stopSystem() [L211] CALL timeShift() [L235] COND FALSE !(\read(pumpRunning)) [L242] COND FALSE !(\read(systemActive)) [L250] CALL __utac_acc__Specification3_spec__1() [L442] int tmp ; [L443] int tmp___0 ; [L444] int tmp___1 ; [L448] CALL, EXPR isMethaneLevelCritical() [L89] int retValue_acc ; [L92] retValue_acc = methaneLevelCritical [L93] return (retValue_acc); [L448] RET, EXPR isMethaneLevelCritical() [L448] tmp = isMethaneLevelCritical() [L450] COND FALSE !(\read(tmp)) [L454] CALL, EXPR getWaterLevel() [L121] int retValue_acc ; [L124] retValue_acc = waterLevel [L125] return (retValue_acc); [L454] RET, EXPR getWaterLevel() [L454] tmp___0 = getWaterLevel() [L456] COND TRUE tmp___0 == 2 [L458] CALL, EXPR isPumpRunning() [L342] int retValue_acc ; [L345] retValue_acc = pumpRunning [L346] return (retValue_acc); [L458] RET, EXPR isPumpRunning() [L458] tmp___1 = isPumpRunning() [L460] COND FALSE !(\read(tmp___1)) [L464] CALL __automaton_fail() [L979] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product51.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 662 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 22.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1347 SDtfs, 2263 SDslu, 1508 SDs, 0 SdLazy, 3880 SolverSat, 753 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1104occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 346 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...