/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_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 23:47:11,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 23:47:11,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 23:47:11,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 23:47:11,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 23:47:11,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 23:47:11,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 23:47:11,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 23:47:11,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 23:47:11,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 23:47:11,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 23:47:11,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 23:47:11,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 23:47:11,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 23:47:11,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 23:47:11,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 23:47:11,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 23:47:11,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 23:47:11,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 23:47:11,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 23:47:11,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 23:47:11,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 23:47:11,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 23:47:11,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 23:47:11,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 23:47:11,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 23:47:11,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 23:47:11,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 23:47:11,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 23:47:11,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 23:47:11,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 23:47:11,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 23:47:11,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 23:47:11,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 23:47:11,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 23:47:11,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 23:47:11,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 23:47:11,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 23:47:11,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 23:47:11,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 23:47:11,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 23:47:11,548 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 23:47:11,569 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 23:47:11,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 23:47:11,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 23:47:11,573 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 23:47:11,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 23:47:11,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 23:47:11,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 23:47:11,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 23:47:11,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 23:47:11,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 23:47:11,575 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 23:47:11,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 23:47:11,576 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 23:47:11,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 23:47:11,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 23:47:11,577 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-06 23:47:11,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 23:47:11,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 23:47:11,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 23:47:11,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 23:47:11,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-06 23:47:11,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 23:47:11,578 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 23:47:11,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 23:47:11,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 23:47:11,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 23:47:11,996 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 23:47:11,997 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 23:47:11,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-11-06 23:47:12,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02e1fde3f/27ca265ce3694c3baaf805ed6a44d55e/FLAG03e8ec1c7 [2020-11-06 23:47:12,888 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 23:47:12,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-11-06 23:47:12,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02e1fde3f/27ca265ce3694c3baaf805ed6a44d55e/FLAG03e8ec1c7 [2020-11-06 23:47:13,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02e1fde3f/27ca265ce3694c3baaf805ed6a44d55e [2020-11-06 23:47:13,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 23:47:13,156 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 23:47:13,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 23:47:13,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 23:47:13,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 23:47:13,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:47:13" (1/1) ... [2020-11-06 23:47:13,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e4a78c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:47:13, skipping insertion in model container [2020-11-06 23:47:13,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:47:13" (1/1) ... [2020-11-06 23:47:13,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 23:47:13,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 23:47:13,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:47:13,571 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 23:47:13,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:47:13,792 INFO L208 MainTranslator]: Completed translation [2020-11-06 23:47:13,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:47:13 WrapperNode [2020-11-06 23:47:13,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 23:47:13,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 23:47:13,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 23:47:13,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 23:47:13,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:47:13" (1/1) ... [2020-11-06 23:47:13,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:47:13" (1/1) ... [2020-11-06 23:47:13,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:47:13" (1/1) ... [2020-11-06 23:47:13,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:47:13" (1/1) ... [2020-11-06 23:47:13,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:47:13" (1/1) ... [2020-11-06 23:47:13,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:47:13" (1/1) ... [2020-11-06 23:47:13,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:47:13" (1/1) ... [2020-11-06 23:47:13,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 23:47:13,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 23:47:13,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 23:47:13,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 23:47:13,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:47:13" (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 23:47:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 23:47:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 23:47:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-06 23:47:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 23:47:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-06 23:47:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-06 23:47:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-06 23:47:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-06 23:47:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-06 23:47:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-06 23:47:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-06 23:47:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-06 23:47:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-06 23:47:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-06 23:47:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-06 23:47:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-06 23:47:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-06 23:47:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-06 23:47:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-06 23:47:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-06 23:47:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-06 23:47:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-06 23:47:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-06 23:47:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-06 23:47:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-06 23:47:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-06 23:47:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-06 23:47:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-06 23:47:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-06 23:47:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-11-06 23:47:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-06 23:47:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-06 23:47:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-06 23:47:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-06 23:47:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-06 23:47:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 23:47:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-06 23:47:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-06 23:47:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-06 23:47:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-06 23:47:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-06 23:47:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-06 23:47:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-06 23:47:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-06 23:47:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 23:47:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 23:47:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 23:47:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 23:47:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 23:47:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-06 23:47:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 23:47:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-06 23:47:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-06 23:47:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 23:47:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 23:47:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 23:47:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 23:47:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-06 23:47:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 23:47:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-06 23:47:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-06 23:47:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 23:47:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-06 23:47:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-06 23:47:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-06 23:47:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-06 23:47:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-06 23:47:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-06 23:47:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-06 23:47:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-06 23:47:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-06 23:47:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-06 23:47:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-06 23:47:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-06 23:47:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-06 23:47:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-06 23:47:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-06 23:47:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-06 23:47:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-06 23:47:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-06 23:47:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-06 23:47:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-11-06 23:47:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-06 23:47:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-06 23:47:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-06 23:47:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-06 23:47:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-06 23:47:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-06 23:47:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-06 23:47:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-06 23:47:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-06 23:47:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-06 23:47:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-06 23:47:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-06 23:47:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-06 23:47:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-06 23:47:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-06 23:47:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 23:47:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-06 23:47:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 23:47:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 23:47:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 23:47:15,340 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 23:47:15,340 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-06 23:47:15,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:47:15 BoogieIcfgContainer [2020-11-06 23:47:15,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 23:47:15,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 23:47:15,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 23:47:15,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 23:47:15,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:47:13" (1/3) ... [2020-11-06 23:47:15,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411a3275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:47:15, skipping insertion in model container [2020-11-06 23:47:15,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:47:13" (2/3) ... [2020-11-06 23:47:15,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411a3275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:47:15, skipping insertion in model container [2020-11-06 23:47:15,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:47:15" (3/3) ... [2020-11-06 23:47:15,353 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-11-06 23:47:15,369 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-06 23:47:15,373 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-06 23:47:15,386 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-06 23:47:15,411 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 23:47:15,411 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 23:47:15,411 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-06 23:47:15,411 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 23:47:15,412 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 23:47:15,412 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 23:47:15,412 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 23:47:15,412 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 23:47:15,436 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2020-11-06 23:47:15,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-06 23:47:15,457 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:47:15,458 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 23:47:15,459 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 23:47:15,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:47:15,465 INFO L82 PathProgramCache]: Analyzing trace with hash 713148475, now seen corresponding path program 1 times [2020-11-06 23:47:15,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:47:15,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371684804] [2020-11-06 23:47:15,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:47:15,554 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:47:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,273 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:47:16,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:47:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:47:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:47:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:47:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:47:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:47:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-06 23:47:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:16,477 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 23:47:16,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371684804] [2020-11-06 23:47:16,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:47:16,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 23:47:16,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599470169] [2020-11-06 23:47:16,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 23:47:16,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:47:16,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 23:47:16,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 23:47:16,505 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 3 states. [2020-11-06 23:47:18,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:47:18,491 INFO L93 Difference]: Finished difference Result 564 states and 673 transitions. [2020-11-06 23:47:18,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 23:47:18,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-06 23:47:18,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:47:18,512 INFO L225 Difference]: With dead ends: 564 [2020-11-06 23:47:18,512 INFO L226 Difference]: Without dead ends: 343 [2020-11-06 23:47:18,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 23:47:18,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-11-06 23:47:18,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 297. [2020-11-06 23:47:18,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-11-06 23:47:18,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 326 transitions. [2020-11-06 23:47:18,701 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 326 transitions. Word has length 148 [2020-11-06 23:47:18,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:47:18,702 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 326 transitions. [2020-11-06 23:47:18,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 23:47:18,703 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 326 transitions. [2020-11-06 23:47:18,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-11-06 23:47:18,707 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:47:18,707 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 23:47:18,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 23:47:18,708 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 23:47:18,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:47:18,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1621768087, now seen corresponding path program 1 times [2020-11-06 23:47:18,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:47:18,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710567103] [2020-11-06 23:47:18,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:47:18,714 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:47:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:19,196 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:47:19,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:47:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:19,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:47:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:19,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:47:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:19,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:47:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:19,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:47:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:19,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-06 23:47:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:19,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-06 23:47:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:19,331 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 23:47:19,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710567103] [2020-11-06 23:47:19,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:47:19,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 23:47:19,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082613295] [2020-11-06 23:47:19,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 23:47:19,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:47:19,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 23:47:19,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 23:47:19,337 INFO L87 Difference]: Start difference. First operand 297 states and 326 transitions. Second operand 4 states. [2020-11-06 23:47:20,200 WARN L194 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:21,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:47:21,695 INFO L93 Difference]: Finished difference Result 468 states and 532 transitions. [2020-11-06 23:47:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 23:47:21,696 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-11-06 23:47:21,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:47:21,702 INFO L225 Difference]: With dead ends: 468 [2020-11-06 23:47:21,703 INFO L226 Difference]: Without dead ends: 326 [2020-11-06 23:47:21,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-06 23:47:21,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-11-06 23:47:21,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 287. [2020-11-06 23:47:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-11-06 23:47:21,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 313 transitions. [2020-11-06 23:47:21,839 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 313 transitions. Word has length 149 [2020-11-06 23:47:21,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:47:21,840 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 313 transitions. [2020-11-06 23:47:21,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 23:47:21,841 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 313 transitions. [2020-11-06 23:47:21,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-11-06 23:47:21,843 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:47:21,843 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] [2020-11-06 23:47:21,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 23:47:21,844 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 23:47:21,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:47:21,845 INFO L82 PathProgramCache]: Analyzing trace with hash 787453312, now seen corresponding path program 1 times [2020-11-06 23:47:21,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:47:21,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1382777138] [2020-11-06 23:47:21,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:47:21,849 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:47:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:22,423 WARN L194 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:47:22,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:47:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:22,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:47:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:22,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:47:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:22,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:47:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:22,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:47:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:22,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-06 23:47:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:22,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-06 23:47:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:22,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-06 23:47:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:22,670 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 23:47:22,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1382777138] [2020-11-06 23:47:22,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:47:22,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 23:47:22,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69013312] [2020-11-06 23:47:22,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 23:47:22,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:47:22,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 23:47:22,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-06 23:47:22,679 INFO L87 Difference]: Start difference. First operand 287 states and 313 transitions. Second operand 10 states. [2020-11-06 23:47:23,283 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:47:23,785 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:47:24,176 WARN L194 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:47:24,637 WARN L194 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:25,040 WARN L194 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:47:25,426 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:26,566 WARN L194 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:30,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:47:30,102 INFO L93 Difference]: Finished difference Result 791 states and 926 transitions. [2020-11-06 23:47:30,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 23:47:30,103 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-11-06 23:47:30,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:47:30,109 INFO L225 Difference]: With dead ends: 791 [2020-11-06 23:47:30,110 INFO L226 Difference]: Without dead ends: 619 [2020-11-06 23:47:30,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-11-06 23:47:30,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2020-11-06 23:47:30,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 518. [2020-11-06 23:47:30,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-11-06 23:47:30,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 584 transitions. [2020-11-06 23:47:30,385 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 584 transitions. Word has length 162 [2020-11-06 23:47:30,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:47:30,385 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 584 transitions. [2020-11-06 23:47:30,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 23:47:30,386 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 584 transitions. [2020-11-06 23:47:30,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-11-06 23:47:30,389 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:47:30,389 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 23:47:30,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 23:47:30,389 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 23:47:30,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:47:30,390 INFO L82 PathProgramCache]: Analyzing trace with hash -35183950, now seen corresponding path program 1 times [2020-11-06 23:47:30,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:47:30,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809561225] [2020-11-06 23:47:30,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:47:30,394 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:47:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:30,883 WARN L194 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:47:30,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:47:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:30,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:47:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:30,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:47:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:30,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:47:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:30,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:47:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:31,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-06 23:47:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:31,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-06 23:47:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:31,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-06 23:47:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:31,104 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 23:47:31,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809561225] [2020-11-06 23:47:31,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:47:31,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-06 23:47:31,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069152344] [2020-11-06 23:47:31,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-06 23:47:31,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:47:31,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-06 23:47:31,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-06 23:47:31,107 INFO L87 Difference]: Start difference. First operand 518 states and 584 transitions. Second operand 9 states. [2020-11-06 23:47:31,727 WARN L194 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:47:33,233 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:33,674 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:47:34,228 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:47:34,693 WARN L194 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:35,149 WARN L194 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:35,730 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:47:36,225 WARN L194 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:37,148 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:39,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:47:39,112 INFO L93 Difference]: Finished difference Result 1449 states and 1741 transitions. [2020-11-06 23:47:39,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 23:47:39,113 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-11-06 23:47:39,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:47:39,130 INFO L225 Difference]: With dead ends: 1449 [2020-11-06 23:47:39,131 INFO L226 Difference]: Without dead ends: 1046 [2020-11-06 23:47:39,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-06 23:47:39,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2020-11-06 23:47:39,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 881. [2020-11-06 23:47:39,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-11-06 23:47:39,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1008 transitions. [2020-11-06 23:47:39,649 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1008 transitions. Word has length 167 [2020-11-06 23:47:39,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:47:39,650 INFO L481 AbstractCegarLoop]: Abstraction has 881 states and 1008 transitions. [2020-11-06 23:47:39,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-06 23:47:39,650 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1008 transitions. [2020-11-06 23:47:39,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-11-06 23:47:39,654 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:47:39,655 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 23:47:39,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 23:47:39,655 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 23:47:39,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:47:39,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1498010514, now seen corresponding path program 1 times [2020-11-06 23:47:39,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:47:39,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829722418] [2020-11-06 23:47:39,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:47:39,659 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:47:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,091 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:47:40,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:47:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:47:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:47:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:47:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:47:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:47:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-06 23:47:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-06 23:47:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-11-06 23:47:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:40,282 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 23:47:40,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829722418] [2020-11-06 23:47:40,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:47:40,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 23:47:40,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297617977] [2020-11-06 23:47:40,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 23:47:40,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:47:40,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 23:47:40,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-06 23:47:40,285 INFO L87 Difference]: Start difference. First operand 881 states and 1008 transitions. Second operand 10 states. [2020-11-06 23:47:40,937 WARN L194 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:47:42,569 WARN L194 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:42,998 WARN L194 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:47:43,418 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:43,870 WARN L194 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:47:44,303 WARN L194 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:45,426 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:47:45,829 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:46,329 WARN L194 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:48,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:47:48,235 INFO L93 Difference]: Finished difference Result 2257 states and 2788 transitions. [2020-11-06 23:47:48,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 23:47:48,236 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-11-06 23:47:48,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:47:48,247 INFO L225 Difference]: With dead ends: 2257 [2020-11-06 23:47:48,247 INFO L226 Difference]: Without dead ends: 1491 [2020-11-06 23:47:48,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-11-06 23:47:48,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2020-11-06 23:47:48,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1223. [2020-11-06 23:47:48,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-11-06 23:47:48,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1415 transitions. [2020-11-06 23:47:48,905 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1415 transitions. Word has length 172 [2020-11-06 23:47:48,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:47:48,905 INFO L481 AbstractCegarLoop]: Abstraction has 1223 states and 1415 transitions. [2020-11-06 23:47:48,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 23:47:48,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1415 transitions. [2020-11-06 23:47:48,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-11-06 23:47:48,911 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:47:48,912 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, 1, 1, 1, 1] [2020-11-06 23:47:48,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-06 23:47:48,912 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 23:47:48,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:47:48,913 INFO L82 PathProgramCache]: Analyzing trace with hash 622146200, now seen corresponding path program 1 times [2020-11-06 23:47:48,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:47:48,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257931722] [2020-11-06 23:47:48,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:47:48,920 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:47:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,388 WARN L194 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:47:49,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:47:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:47:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:47:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:47:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:47:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:47:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-06 23:47:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-06 23:47:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:47:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:47:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:47:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:47:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:47:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-11-06 23:47:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-11-06 23:47:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:49,660 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 23:47:49,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257931722] [2020-11-06 23:47:49,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:47:49,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-06 23:47:49,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564866097] [2020-11-06 23:47:49,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 23:47:49,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:47:49,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 23:47:49,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-06 23:47:49,663 INFO L87 Difference]: Start difference. First operand 1223 states and 1415 transitions. Second operand 11 states. [2020-11-06 23:47:51,494 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:51,888 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:47:52,323 WARN L194 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-06 23:47:52,740 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:53,172 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:47:53,542 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:56,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:47:56,285 INFO L93 Difference]: Finished difference Result 2948 states and 3690 transitions. [2020-11-06 23:47:56,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-06 23:47:56,286 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 210 [2020-11-06 23:47:56,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:47:56,300 INFO L225 Difference]: With dead ends: 2948 [2020-11-06 23:47:56,300 INFO L226 Difference]: Without dead ends: 1840 [2020-11-06 23:47:56,310 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-11-06 23:47:56,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2020-11-06 23:47:56,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1261. [2020-11-06 23:47:56,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1261 states. [2020-11-06 23:47:56,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1455 transitions. [2020-11-06 23:47:56,832 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1455 transitions. Word has length 210 [2020-11-06 23:47:56,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:47:56,832 INFO L481 AbstractCegarLoop]: Abstraction has 1261 states and 1455 transitions. [2020-11-06 23:47:56,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 23:47:56,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1455 transitions. [2020-11-06 23:47:56,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-11-06 23:47:56,837 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:47:56,837 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, 1, 1, 1, 1] [2020-11-06 23:47:56,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-06 23:47:56,837 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 23:47:56,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:47:56,838 INFO L82 PathProgramCache]: Analyzing trace with hash 559817464, now seen corresponding path program 1 times [2020-11-06 23:47:56,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:47:56,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596654371] [2020-11-06 23:47:56,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:47:56,842 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:47:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,192 WARN L194 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:47:57,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:47:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:47:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:47:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:47:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:47:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:47:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-06 23:47:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-06 23:47:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:47:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:47:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:47:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:47:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:47:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-11-06 23:47:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-11-06 23:47:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:47:57,475 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 23:47:57,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596654371] [2020-11-06 23:47:57,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:47:57,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-06 23:47:57,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285343871] [2020-11-06 23:47:57,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-06 23:47:57,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:47:57,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-06 23:47:57,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-11-06 23:47:57,478 INFO L87 Difference]: Start difference. First operand 1261 states and 1455 transitions. Second operand 14 states. [2020-11-06 23:47:58,313 WARN L194 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:47:58,725 WARN L194 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:47:59,107 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:47:59,476 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:47:59,835 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:48:01,160 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:48:01,546 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:48:01,961 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:48:02,396 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:48:02,792 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:48:05,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:48:05,849 INFO L93 Difference]: Finished difference Result 3030 states and 3849 transitions. [2020-11-06 23:48:05,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-06 23:48:05,849 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 210 [2020-11-06 23:48:05,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:48:05,862 INFO L225 Difference]: With dead ends: 3030 [2020-11-06 23:48:05,862 INFO L226 Difference]: Without dead ends: 1884 [2020-11-06 23:48:05,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-11-06 23:48:05,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2020-11-06 23:48:06,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1285. [2020-11-06 23:48:06,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1285 states. [2020-11-06 23:48:06,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1479 transitions. [2020-11-06 23:48:06,430 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1479 transitions. Word has length 210 [2020-11-06 23:48:06,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:48:06,431 INFO L481 AbstractCegarLoop]: Abstraction has 1285 states and 1479 transitions. [2020-11-06 23:48:06,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-06 23:48:06,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1479 transitions. [2020-11-06 23:48:06,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-11-06 23:48:06,435 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:48:06,436 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, 1, 1, 1, 1] [2020-11-06 23:48:06,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-06 23:48:06,436 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 23:48:06,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:48:06,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1595243915, now seen corresponding path program 1 times [2020-11-06 23:48:06,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:48:06,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202067374] [2020-11-06 23:48:06,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:48:06,440 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:48:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:06,816 WARN L194 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:48:06,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:48:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:06,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:48:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:06,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:48:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:06,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:48:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:06,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:48:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:06,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:48:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:06,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-06 23:48:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:06,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-06 23:48:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:06,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:48:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:06,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:48:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:06,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:48:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:07,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:48:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:07,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:48:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:07,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-11-06 23:48:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:07,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-11-06 23:48:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:48:07,107 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 23:48:07,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202067374] [2020-11-06 23:48:07,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:48:07,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 23:48:07,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172751119] [2020-11-06 23:48:07,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 23:48:07,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:48:07,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 23:48:07,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-06 23:48:07,109 INFO L87 Difference]: Start difference. First operand 1285 states and 1479 transitions. Second operand 8 states. [2020-11-06 23:48:07,784 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:48:08,532 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:48:14,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:48:14,391 INFO L93 Difference]: Finished difference Result 4601 states and 5891 transitions. [2020-11-06 23:48:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-11-06 23:48:14,391 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 210 [2020-11-06 23:48:14,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:48:14,413 INFO L225 Difference]: With dead ends: 4601 [2020-11-06 23:48:14,413 INFO L226 Difference]: Without dead ends: 3431 [2020-11-06 23:48:14,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-11-06 23:48:14,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3431 states. [2020-11-06 23:48:15,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3431 to 2505. [2020-11-06 23:48:15,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2505 states. [2020-11-06 23:48:15,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 2911 transitions. [2020-11-06 23:48:15,651 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 2911 transitions. Word has length 210 [2020-11-06 23:48:15,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:48:15,652 INFO L481 AbstractCegarLoop]: Abstraction has 2505 states and 2911 transitions. [2020-11-06 23:48:15,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 23:48:15,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 2911 transitions. [2020-11-06 23:48:15,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-11-06 23:48:15,658 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:48:15,659 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:48:15,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-06 23:48:15,659 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 23:48:15,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:48:15,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1703597288, now seen corresponding path program 1 times [2020-11-06 23:48:15,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:48:15,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715689974] [2020-11-06 23:48:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:48:15,663 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:48:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:48:15,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:48:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:48:15,785 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:48:16,055 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-06 23:48:16,055 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 23:48:16,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-06 23:48:16,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:48:16 BoogieIcfgContainer [2020-11-06 23:48:16,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 23:48:16,095 INFO L168 Benchmark]: Toolchain (without parser) took 62947.62 ms. Allocated memory was 155.2 MB in the beginning and 973.1 MB in the end (delta: 817.9 MB). Free memory was 131.2 MB in the beginning and 423.9 MB in the end (delta: -292.8 MB). Peak memory consumption was 526.8 MB. Max. memory is 8.0 GB. [2020-11-06 23:48:16,101 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory was 99.5 MB in the beginning and 99.3 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 23:48:16,106 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.20 ms. Allocated memory is still 155.2 MB. Free memory was 130.5 MB in the beginning and 134.0 MB in the end (delta: -3.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 8.0 GB. [2020-11-06 23:48:16,110 INFO L168 Benchmark]: Boogie Preprocessor took 155.53 ms. Allocated memory is still 155.2 MB. Free memory was 134.0 MB in the beginning and 130.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-06 23:48:16,111 INFO L168 Benchmark]: RCFGBuilder took 1392.98 ms. Allocated memory is still 155.2 MB. Free memory was 130.2 MB in the beginning and 107.0 MB in the end (delta: 23.2 MB). Peak memory consumption was 47.3 MB. Max. memory is 8.0 GB. [2020-11-06 23:48:16,112 INFO L168 Benchmark]: TraceAbstraction took 60747.73 ms. Allocated memory was 155.2 MB in the beginning and 973.1 MB in the end (delta: 817.9 MB). Free memory was 106.5 MB in the beginning and 423.9 MB in the end (delta: -317.5 MB). Peak memory consumption was 499.9 MB. Max. memory is 8.0 GB. [2020-11-06 23:48:16,115 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory was 99.5 MB in the beginning and 99.3 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 633.20 ms. Allocated memory is still 155.2 MB. Free memory was 130.5 MB in the beginning and 134.0 MB in the end (delta: -3.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 155.53 ms. Allocated memory is still 155.2 MB. Free memory was 134.0 MB in the beginning and 130.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1392.98 ms. Allocated memory is still 155.2 MB. Free memory was 130.2 MB in the beginning and 107.0 MB in the end (delta: 23.2 MB). Peak memory consumption was 47.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 60747.73 ms. Allocated memory was 155.2 MB in the beginning and 973.1 MB in the end (delta: 817.9 MB). Free memory was 106.5 MB in the beginning and 423.9 MB in the end (delta: -317.5 MB). Peak memory consumption was 499.9 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int pumpRunning = 0; [L493] int systemActive = 1; [L813] int cleanupTimeShifts = 4; [L910] int waterLevel = 1; [L911] int methaneLevelCritical = 0; [L886] int retValue_acc ; [L887] int tmp ; [L891] FCALL select_helpers() [L892] FCALL select_features() [L893] CALL, EXPR valid_product() [L768] int retValue_acc ; [L771] retValue_acc = 1 [L772] return (retValue_acc); [L893] RET, EXPR valid_product() [L893] tmp = valid_product() [L895] COND TRUE \read(tmp) [L897] FCALL setup() [L898] CALL runTest() [L880] CALL test() [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 [L424] COND TRUE 1 [L426] COND TRUE splverifierCounter < 4 [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) [L436] CALL waterRise() [L928] COND TRUE waterLevel < 2 [L929] waterLevel = waterLevel + 1 [L436] RET waterRise() [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND TRUE \read(tmp___0) [L446] CALL changeMethaneLevel() [L940] COND FALSE !(\read(methaneLevelCritical)) [L943] methaneLevelCritical = 1 [L446] RET changeMethaneLevel() [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND TRUE \read(tmp___2) [L456] CALL startSystem() [L734] systemActive = 1 [L456] RET startSystem() [L471] CALL timeShift() [L500] COND FALSE !(\read(pumpRunning)) [L507] COND TRUE \read(systemActive) [L509] CALL processEnvironment() [L581] int tmp ; [L584] COND FALSE !(\read(pumpRunning)) [L599] CALL processEnvironment__wrappee__lowWaterSensor() [L555] int tmp ; [L558] COND FALSE !(\read(pumpRunning)) [L573] CALL processEnvironment__wrappee__highWaterSensor() [L529] int tmp ; [L532] COND TRUE ! pumpRunning [L534] CALL, EXPR isHighWaterLevel() [L678] int retValue_acc ; [L679] int tmp ; [L680] int tmp___0 ; [L684] CALL, EXPR isHighWaterSensorDry() [L990] int retValue_acc ; [L993] COND FALSE !(waterLevel < 2) [L997] retValue_acc = 0 [L998] return (retValue_acc); [L684] RET, EXPR isHighWaterSensorDry() [L684] tmp = isHighWaterSensorDry() [L686] COND FALSE !(\read(tmp)) [L689] tmp___0 = 1 [L691] retValue_acc = tmp___0 [L692] return (retValue_acc); [L534] RET, EXPR isHighWaterLevel() [L534] tmp = isHighWaterLevel() [L536] COND TRUE \read(tmp) [L538] CALL activatePump() [L609] pumpRunning = 1 [L538] RET activatePump() [L573] RET processEnvironment__wrappee__highWaterSensor() [L599] RET processEnvironment__wrappee__lowWaterSensor() [L509] RET processEnvironment() [L515] CALL __utac_acc__Specification1_spec__1() [L779] int tmp ; [L780] int tmp___0 ; [L784] CALL, EXPR isMethaneLevelCritical() [L949] int retValue_acc ; [L952] retValue_acc = methaneLevelCritical [L953] return (retValue_acc); [L784] RET, EXPR isMethaneLevelCritical() [L784] tmp = isMethaneLevelCritical() [L786] COND TRUE \read(tmp) [L788] CALL, EXPR isPumpRunning() [L633] int retValue_acc ; [L636] retValue_acc = pumpRunning [L637] return (retValue_acc); [L788] RET, EXPR isPumpRunning() [L788] tmp___0 = isPumpRunning() [L790] COND TRUE \read(tmp___0) [L792] CALL __automaton_fail() [L808] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product56.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 672 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 60.6s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 50.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2300 SDtfs, 5053 SDslu, 4592 SDs, 0 SdLazy, 10298 SolverSat, 1721 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 342 GetRequests, 211 SyntacticMatches, 4 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 20.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2505occurred 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: 4.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 2723 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...