/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_spec4_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:10:23,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:10:23,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:10:23,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:10:23,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:10:23,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:10:23,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:10:23,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:10:23,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:10:23,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:10:23,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:10:23,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:10:23,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:10:23,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:10:23,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:10:23,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:10:23,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:10:23,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:10:23,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:10:23,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:10:23,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:10:23,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:10:23,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:10:23,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:10:23,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:10:23,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:10:23,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:10:23,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:10:23,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:10:23,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:10:23,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:10:23,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:10:23,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:10:23,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:10:23,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:10:23,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:10:23,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:10:23,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:10:23,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:10:23,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:10:23,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:10:23,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:10:23,532 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:10:23,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:10:23,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:10:23,537 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:10:23,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:10:23,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:10:23,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:10:23,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:10:23,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:10:23,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:10:23,540 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:10:23,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:10:23,540 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:10:23,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:10:23,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:10:23,542 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:10:23,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:10:23,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:10:23,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:10:23,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:10:23,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:10:23,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:10:23,544 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:10:23,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:10:23,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:10:23,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:10:23,991 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:10:23,992 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:10:23,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c [2020-10-23 20:10:24,082 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a48a0c694/40474a1486ef4db496f0ada9a9eb3333/FLAG51bb3252c [2020-10-23 20:10:24,830 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:10:24,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c [2020-10-23 20:10:24,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a48a0c694/40474a1486ef4db496f0ada9a9eb3333/FLAG51bb3252c [2020-10-23 20:10:25,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a48a0c694/40474a1486ef4db496f0ada9a9eb3333 [2020-10-23 20:10:25,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:10:25,091 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:10:25,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:10:25,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:10:25,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:10:25,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:10:25" (1/1) ... [2020-10-23 20:10:25,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aeb1f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:25, skipping insertion in model container [2020-10-23 20:10:25,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:10:25" (1/1) ... [2020-10-23 20:10:25,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:10:25,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:10:25,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:10:25,576 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:10:25,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:10:25,742 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:10:25,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:25 WrapperNode [2020-10-23 20:10:25,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:10:25,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:10:25,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:10:25,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:10:25,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:25" (1/1) ... [2020-10-23 20:10:25,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:25" (1/1) ... [2020-10-23 20:10:25,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:25" (1/1) ... [2020-10-23 20:10:25,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:25" (1/1) ... [2020-10-23 20:10:25,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:25" (1/1) ... [2020-10-23 20:10:25,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:25" (1/1) ... [2020-10-23 20:10:25,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:25" (1/1) ... [2020-10-23 20:10:25,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:10:25,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:10:25,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:10:25,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:10:25,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:10:26,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:10:26,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:10:26,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:10:26,011 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:10:26,012 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:10:26,012 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:10:26,012 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:10:26,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:10:26,012 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:10:26,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:10:26,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:10:26,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:10:26,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:10:26,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:10:26,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:10:26,014 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:10:26,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:10:26,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:10:26,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:10:26,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:10:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:10:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:10:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:10:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:10:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:10:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:10:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:10:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-23 20:10:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:10:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:10:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:10:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:10:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:10:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:10:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:10:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:10:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:10:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:10:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:10:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:10:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:10:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:10:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:10:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:10:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:10:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:10:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:10:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:10:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:10:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:10:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:10:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:10:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:10:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:10:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:10:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:10:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:10:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:10:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:10:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:10:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:10:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:10:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:10:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:10:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:10:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:10:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:10:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:10:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:10:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:10:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:10:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:10:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:10:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:10:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:10:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:10:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:10:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:10:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:10:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:10:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:10:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:10:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:10:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-23 20:10:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:10:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:10:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:10:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:10:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:10:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:10:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:10:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:10:27,352 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:10:27,352 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:10:27,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:10:27 BoogieIcfgContainer [2020-10-23 20:10:27,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:10:27,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:10:27,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:10:27,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:10:27,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:10:25" (1/3) ... [2020-10-23 20:10:27,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5b68b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:10:27, skipping insertion in model container [2020-10-23 20:10:27,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:10:25" (2/3) ... [2020-10-23 20:10:27,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5b68b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:10:27, skipping insertion in model container [2020-10-23 20:10:27,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:10:27" (3/3) ... [2020-10-23 20:10:27,364 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2020-10-23 20:10:27,375 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:10:27,381 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:10:27,394 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:10:27,421 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:10:27,421 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:10:27,421 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:10:27,422 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:10:27,422 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:10:27,422 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:10:27,422 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:10:27,422 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:10:27,443 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states. [2020-10-23 20:10:27,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:10:27,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:27,462 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] [2020-10-23 20:10:27,463 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:10:27,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:27,469 INFO L82 PathProgramCache]: Analyzing trace with hash -275296636, now seen corresponding path program 1 times [2020-10-23 20:10:27,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:27,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629915518] [2020-10-23 20:10:27,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:27,553 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:28,181 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:28,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:28,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:28,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:28,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:28,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:28,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:10:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:28,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:10:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:28,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:10:28,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629915518] [2020-10-23 20:10:28,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:28,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:10:28,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445393180] [2020-10-23 20:10:28,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:10:28,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:28,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:10:28,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:10:28,446 INFO L87 Difference]: Start difference. First operand 309 states. Second operand 3 states. [2020-10-23 20:10:30,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:30,038 INFO L93 Difference]: Finished difference Result 475 states and 560 transitions. [2020-10-23 20:10:30,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:10:30,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:10:30,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:30,074 INFO L225 Difference]: With dead ends: 475 [2020-10-23 20:10:30,075 INFO L226 Difference]: Without dead ends: 296 [2020-10-23 20:10:30,085 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 [2020-10-23 20:10:30,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-10-23 20:10:30,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 255. [2020-10-23 20:10:30,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-10-23 20:10:30,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 274 transitions. [2020-10-23 20:10:30,284 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 274 transitions. Word has length 148 [2020-10-23 20:10:30,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:30,287 INFO L481 AbstractCegarLoop]: Abstraction has 255 states and 274 transitions. [2020-10-23 20:10:30,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:10:30,287 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 274 transitions. [2020-10-23 20:10:30,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:10:30,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:30,301 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] [2020-10-23 20:10:30,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:10:30,301 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:10:30,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:30,302 INFO L82 PathProgramCache]: Analyzing trace with hash -360287628, now seen corresponding path program 1 times [2020-10-23 20:10:30,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:30,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141077168] [2020-10-23 20:10:30,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:30,312 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:30,838 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:30,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:30,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:30,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:30,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:30,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:30,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:10:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:30,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:10:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:30,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:10:30,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141077168] [2020-10-23 20:10:30,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:30,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:10:30,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659154475] [2020-10-23 20:10:30,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:10:30,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:30,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:10:30,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:10:30,967 INFO L87 Difference]: Start difference. First operand 255 states and 274 transitions. Second operand 4 states. [2020-10-23 20:10:31,763 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:10:32,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:32,855 INFO L93 Difference]: Finished difference Result 389 states and 431 transitions. [2020-10-23 20:10:32,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:10:32,855 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:10:32,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:32,865 INFO L225 Difference]: With dead ends: 389 [2020-10-23 20:10:32,865 INFO L226 Difference]: Without dead ends: 279 [2020-10-23 20:10:32,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:10:32,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-23 20:10:32,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2020-10-23 20:10:32,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-10-23 20:10:32,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 261 transitions. [2020-10-23 20:10:32,989 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 261 transitions. Word has length 149 [2020-10-23 20:10:32,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:32,989 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 261 transitions. [2020-10-23 20:10:32,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:10:32,990 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 261 transitions. [2020-10-23 20:10:32,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:10:32,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:32,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:10:32,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:10:32,993 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:10:32,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:32,994 INFO L82 PathProgramCache]: Analyzing trace with hash 2132092565, now seen corresponding path program 1 times [2020-10-23 20:10:32,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:32,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852690814] [2020-10-23 20:10:32,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:32,999 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:33,418 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:33,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:33,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:33,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:33,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:33,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:33,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:10:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:33,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:10:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:33,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:10:33,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852690814] [2020-10-23 20:10:33,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:33,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:10:33,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030081339] [2020-10-23 20:10:33,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:10:33,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:33,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:10:33,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:10:33,673 INFO L87 Difference]: Start difference. First operand 245 states and 261 transitions. Second operand 9 states. [2020-10-23 20:10:34,385 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:10:34,842 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:10:35,216 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:10:35,608 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:35,981 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:36,380 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:38,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:38,020 INFO L93 Difference]: Finished difference Result 409 states and 456 transitions. [2020-10-23 20:10:38,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 20:10:38,022 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:10:38,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:38,026 INFO L225 Difference]: With dead ends: 409 [2020-10-23 20:10:38,026 INFO L226 Difference]: Without dead ends: 279 [2020-10-23 20:10:38,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:10:38,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-23 20:10:38,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2020-10-23 20:10:38,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-10-23 20:10:38,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 260 transitions. [2020-10-23 20:10:38,118 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 260 transitions. Word has length 158 [2020-10-23 20:10:38,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:38,119 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 260 transitions. [2020-10-23 20:10:38,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:10:38,119 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 260 transitions. [2020-10-23 20:10:38,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:10:38,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:38,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:10:38,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:10:38,122 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:10:38,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:38,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1699958148, now seen corresponding path program 1 times [2020-10-23 20:10:38,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:38,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [943713111] [2020-10-23 20:10:38,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:38,127 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:38,524 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:38,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:38,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:38,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:38,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:38,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:38,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 20:10:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:38,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:10:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:38,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:10:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:38,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:10:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:38,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:10:38,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [943713111] [2020-10-23 20:10:38,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:38,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:10:38,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566363715] [2020-10-23 20:10:38,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:10:38,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:38,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:10:38,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:10:38,693 INFO L87 Difference]: Start difference. First operand 245 states and 260 transitions. Second operand 6 states. [2020-10-23 20:10:39,290 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:10:41,196 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:10:41,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:41,808 INFO L93 Difference]: Finished difference Result 533 states and 601 transitions. [2020-10-23 20:10:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 20:10:41,809 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-10-23 20:10:41,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:41,814 INFO L225 Difference]: With dead ends: 533 [2020-10-23 20:10:41,814 INFO L226 Difference]: Without dead ends: 403 [2020-10-23 20:10:41,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:10:41,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-10-23 20:10:41,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 342. [2020-10-23 20:10:41,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-10-23 20:10:41,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 367 transitions. [2020-10-23 20:10:41,969 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 367 transitions. Word has length 166 [2020-10-23 20:10:41,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:41,970 INFO L481 AbstractCegarLoop]: Abstraction has 342 states and 367 transitions. [2020-10-23 20:10:41,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:10:41,971 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 367 transitions. [2020-10-23 20:10:41,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-23 20:10:41,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:41,974 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] [2020-10-23 20:10:41,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:10:41,974 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:10:41,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:41,975 INFO L82 PathProgramCache]: Analyzing trace with hash 306292983, now seen corresponding path program 1 times [2020-10-23 20:10:41,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:41,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597211419] [2020-10-23 20:10:41,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:41,979 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:42,417 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:42,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:42,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:42,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:42,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:42,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:42,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 20:10:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:42,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:10:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:42,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:10:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:42,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:10:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:42,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-23 20:10:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:42,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 20:10:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:42,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:10:42,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597211419] [2020-10-23 20:10:42,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:42,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:10:42,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435014605] [2020-10-23 20:10:42,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:10:42,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:42,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:10:42,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:10:42,667 INFO L87 Difference]: Start difference. First operand 342 states and 367 transitions. Second operand 14 states. [2020-10-23 20:10:43,289 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:10:43,765 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:10:44,143 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:10:44,517 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:44,901 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:45,286 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:46,153 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:10:47,469 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:47,849 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:48,271 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:48,716 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:10:49,073 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:10:49,450 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:49,818 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:10:50,240 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:50,715 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:10:51,137 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:10:52,564 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:10:52,946 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:53,400 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:54,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:10:54,224 INFO L93 Difference]: Finished difference Result 1019 states and 1205 transitions. [2020-10-23 20:10:54,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:10:54,224 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 190 [2020-10-23 20:10:54,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:10:54,235 INFO L225 Difference]: With dead ends: 1019 [2020-10-23 20:10:54,235 INFO L226 Difference]: Without dead ends: 792 [2020-10-23 20:10:54,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:10:54,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2020-10-23 20:10:54,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 695. [2020-10-23 20:10:54,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-10-23 20:10:54,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 768 transitions. [2020-10-23 20:10:54,546 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 768 transitions. Word has length 190 [2020-10-23 20:10:54,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:10:54,547 INFO L481 AbstractCegarLoop]: Abstraction has 695 states and 768 transitions. [2020-10-23 20:10:54,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:10:54,547 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 768 transitions. [2020-10-23 20:10:54,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-23 20:10:54,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:10:54,554 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:10:54,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:10:54,554 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:10:54,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:10:54,555 INFO L82 PathProgramCache]: Analyzing trace with hash 704134049, now seen corresponding path program 1 times [2020-10-23 20:10:54,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:10:54,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741443069] [2020-10-23 20:10:54,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:10:54,762 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 20:10:54,765 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:10:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,173 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:10:55,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:10:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:10:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:10:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:10:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:10:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 20:10:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:10:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:10:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:10:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:10:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:10:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:10:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:10:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:10:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-23 20:10:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:10:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-23 20:10:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-23 20:10:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-23 20:10:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:10:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-23 20:10:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-10-23 20:10:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:10:55,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:10:55,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741443069] [2020-10-23 20:10:55,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:10:55,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 20:10:55,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442733083] [2020-10-23 20:10:55,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 20:10:55,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:10:55,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 20:10:55,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:10:55,501 INFO L87 Difference]: Start difference. First operand 695 states and 768 transitions. Second operand 11 states. [2020-10-23 20:10:56,969 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:10:57,344 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:10:57,727 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:10:58,082 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:10:58,487 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:10:58,858 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:11:00,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:11:00,422 INFO L93 Difference]: Finished difference Result 1388 states and 1607 transitions. [2020-10-23 20:11:00,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:11:00,423 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 269 [2020-10-23 20:11:00,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:11:00,430 INFO L225 Difference]: With dead ends: 1388 [2020-10-23 20:11:00,431 INFO L226 Difference]: Without dead ends: 808 [2020-10-23 20:11:00,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:11:00,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2020-10-23 20:11:00,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 719. [2020-10-23 20:11:00,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2020-10-23 20:11:00,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 793 transitions. [2020-10-23 20:11:00,743 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 793 transitions. Word has length 269 [2020-10-23 20:11:00,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:11:00,744 INFO L481 AbstractCegarLoop]: Abstraction has 719 states and 793 transitions. [2020-10-23 20:11:00,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 20:11:00,744 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 793 transitions. [2020-10-23 20:11:00,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-23 20:11:00,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:00,754 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:11:00,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:11:00,754 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:11:00,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:00,755 INFO L82 PathProgramCache]: Analyzing trace with hash -2082688523, now seen corresponding path program 1 times [2020-10-23 20:11:00,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:00,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836534693] [2020-10-23 20:11:00,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:00,923 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 20:11:00,925 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:11:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,314 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:11:01,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:11:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:11:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:11:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:11:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:11:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:11:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:11:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:11:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:11:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:11:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:11:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:11:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:11:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-23 20:11:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:11:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-23 20:11:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-23 20:11:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-10-23 20:11:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:11:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-23 20:11:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-23 20:11:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:11:01,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:11:01,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836534693] [2020-10-23 20:11:01,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:11:01,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:11:01,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233520906] [2020-10-23 20:11:01,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:11:01,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:11:01,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:11:01,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:11:01,715 INFO L87 Difference]: Start difference. First operand 719 states and 793 transitions. Second operand 14 states. [2020-10-23 20:11:02,410 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:11:02,771 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:11:03,181 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:11:03,560 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:11:03,895 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:11:04,816 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:11:05,173 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:11:05,528 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:11:05,903 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:11:06,255 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:11:07,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:11:07,662 INFO L93 Difference]: Finished difference Result 1241 states and 1422 transitions. [2020-10-23 20:11:07,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 20:11:07,663 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 265 [2020-10-23 20:11:07,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:11:07,668 INFO L225 Difference]: With dead ends: 1241 [2020-10-23 20:11:07,668 INFO L226 Difference]: Without dead ends: 637 [2020-10-23 20:11:07,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-10-23 20:11:07,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2020-10-23 20:11:07,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 575. [2020-10-23 20:11:07,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2020-10-23 20:11:07,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 630 transitions. [2020-10-23 20:11:07,977 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 630 transitions. Word has length 265 [2020-10-23 20:11:07,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:11:07,978 INFO L481 AbstractCegarLoop]: Abstraction has 575 states and 630 transitions. [2020-10-23 20:11:07,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:11:07,978 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 630 transitions. [2020-10-23 20:11:07,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-23 20:11:07,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:11:07,984 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:11:07,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 20:11:07,984 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:11:07,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:11:07,985 INFO L82 PathProgramCache]: Analyzing trace with hash -792969182, now seen corresponding path program 1 times [2020-10-23 20:11:07,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:11:07,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716775819] [2020-10-23 20:11:07,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:11:08,316 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 79 [2020-10-23 20:11:08,796 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 85 [2020-10-23 20:11:08,912 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-23 20:11:09,284 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 85 [2020-10-23 20:11:09,405 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-23 20:11:09,760 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 85 [2020-10-23 20:11:09,888 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-23 20:11:10,244 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2020-10-23 20:11:10,366 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-23 20:11:10,696 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2020-10-23 20:11:10,812 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-23 20:11:11,129 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2020-10-23 20:11:11,544 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 79 [2020-10-23 20:11:11,984 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2020-10-23 20:11:12,436 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2020-10-23 20:11:12,554 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-23 20:11:12,885 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2020-10-23 20:11:12,995 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-23 20:11:13,345 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2020-10-23 20:11:13,464 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-23 20:11:13,775 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 79 [2020-10-23 20:11:14,222 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2020-10-23 20:11:14,334 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-23 20:11:15,402 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 191 [2020-10-23 20:11:16,348 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 191 [2020-10-23 20:11:17,226 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 191 [2020-10-23 20:11:18,112 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 191 [2020-10-23 20:11:18,117 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:18,811 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 20:11:19,490 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-10-23 20:11:20,180 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-10-23 20:11:20,846 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-10-23 20:11:21,530 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 20:11:22,229 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 20:11:22,902 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-10-23 20:11:23,580 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 20:11:23,585 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:24,291 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 187 [2020-10-23 20:11:24,963 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 186 [2020-10-23 20:11:25,629 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 186 [2020-10-23 20:11:26,324 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 187 [2020-10-23 20:11:26,995 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 186 [2020-10-23 20:11:27,659 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 187 [2020-10-23 20:11:28,360 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 187 [2020-10-23 20:11:29,038 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 186 [2020-10-23 20:11:29,042 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:29,716 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 20:11:30,423 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 20:11:31,103 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-10-23 20:11:31,762 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 20:11:32,458 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-10-23 20:11:33,146 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-10-23 20:11:33,822 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 20:11:34,509 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-10-23 20:11:34,512 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:35,196 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:35,884 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:36,581 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:37,271 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:37,972 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:38,660 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:39,350 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:40,056 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:40,059 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:41,052 WARN L193 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-10-23 20:11:42,045 WARN L193 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-10-23 20:11:43,046 WARN L193 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-10-23 20:11:44,048 WARN L193 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2020-10-23 20:11:44,055 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:44,645 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:45,595 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 244 [2020-10-23 20:11:46,511 WARN L193 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 244 [2020-10-23 20:11:47,429 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 244 [2020-10-23 20:11:48,357 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 244 [2020-10-23 20:11:48,364 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:48,985 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:49,692 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:50,403 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:51,105 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:51,825 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:52,519 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:53,217 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:53,923 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:54,620 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-10-23 20:11:54,624 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:55,318 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:11:56,025 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-10-23 20:11:56,731 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-10-23 20:11:57,447 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-10-23 20:11:58,151 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-10-23 20:11:58,869 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-10-23 20:11:59,588 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-10-23 20:12:00,290 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-10-23 20:12:00,990 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-10-23 20:12:00,993 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:01,932 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 247 [2020-10-23 20:12:02,898 WARN L193 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 247 [2020-10-23 20:12:03,902 WARN L193 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 247 [2020-10-23 20:12:04,832 WARN L193 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 247 [2020-10-23 20:12:04,839 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:05,870 WARN L193 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 247 [2020-10-23 20:12:06,862 WARN L193 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 247 [2020-10-23 20:12:07,874 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 247 [2020-10-23 20:12:08,886 WARN L193 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 247 [2020-10-23 20:12:08,891 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:12:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:12:09,229 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:12:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:12:09,566 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:12:09,782 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:12:09,782 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:12:09,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 20:12:09,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:12:09 BoogieIcfgContainer [2020-10-23 20:12:09,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:12:09,846 INFO L168 Benchmark]: Toolchain (without parser) took 104755.38 ms. Allocated memory was 166.7 MB in the beginning and 608.2 MB in the end (delta: 441.5 MB). Free memory was 141.8 MB in the beginning and 541.4 MB in the end (delta: -399.6 MB). Peak memory consumption was 382.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:09,847 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 166.7 MB. Free memory was 139.9 MB in the beginning and 139.8 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:12:09,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.52 ms. Allocated memory is still 166.7 MB. Free memory was 141.2 MB in the beginning and 120.1 MB in the end (delta: 21.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:09,853 INFO L168 Benchmark]: Boogie Preprocessor took 99.82 ms. Allocated memory is still 166.7 MB. Free memory was 120.1 MB in the beginning and 116.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:09,854 INFO L168 Benchmark]: RCFGBuilder took 1509.28 ms. Allocated memory was 166.7 MB in the beginning and 202.4 MB in the end (delta: 35.7 MB). Free memory was 116.1 MB in the beginning and 133.4 MB in the end (delta: -17.3 MB). Peak memory consumption was 27.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:09,854 INFO L168 Benchmark]: TraceAbstraction took 102481.55 ms. Allocated memory was 202.4 MB in the beginning and 608.2 MB in the end (delta: 405.8 MB). Free memory was 133.4 MB in the beginning and 541.4 MB in the end (delta: -408.1 MB). Peak memory consumption was 337.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:12:09,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 166.7 MB. Free memory was 139.9 MB in the beginning and 139.8 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 646.52 ms. Allocated memory is still 166.7 MB. Free memory was 141.2 MB in the beginning and 120.1 MB in the end (delta: 21.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 99.82 ms. Allocated memory is still 166.7 MB. Free memory was 120.1 MB in the beginning and 116.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1509.28 ms. Allocated memory was 166.7 MB in the beginning and 202.4 MB in the end (delta: 35.7 MB). Free memory was 116.1 MB in the beginning and 133.4 MB in the end (delta: -17.3 MB). Peak memory consumption was 27.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 102481.55 ms. Allocated memory was 202.4 MB in the beginning and 608.2 MB in the end (delta: 405.8 MB). Free memory was 133.4 MB in the beginning and 541.4 MB in the end (delta: -408.1 MB). Peak memory consumption was 337.5 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L387] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L654] int pumpRunning = 0; [L655] int systemActive = 1; [L824] int cleanupTimeShifts = 4; [L897] int retValue_acc ; [L898] int tmp ; [L902] FCALL select_helpers() [L903] FCALL select_features() [L904] CALL, EXPR valid_product() [L200] int retValue_acc ; [L203] retValue_acc = 1 [L204] return (retValue_acc); [L904] RET, EXPR valid_product() [L904] tmp = valid_product() [L906] COND TRUE \read(tmp) [L908] FCALL setup() [L909] CALL runTest() [L891] CALL test() [L587] int splverifierCounter ; [L588] int tmp ; [L589] int tmp___0 ; [L590] int tmp___1 ; [L591] int tmp___2 ; [L594] splverifierCounter = 0 [L596] COND TRUE 1 [L598] COND TRUE splverifierCounter < 4 [L604] tmp = __VERIFIER_nondet_int() [L606] COND TRUE \read(tmp) [L608] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L608] RET waterRise() [L614] tmp___0 = __VERIFIER_nondet_int() [L616] COND FALSE !(\read(tmp___0)) [L624] tmp___2 = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp___2) [L639] CALL timeShift() [L661] COND FALSE !(\read(pumpRunning)) [L668] COND TRUE \read(systemActive) [L670] CALL processEnvironment() [L690] int tmp ; [L693] COND TRUE ! pumpRunning [L695] CALL, EXPR isHighWaterLevel() [L805] int retValue_acc ; [L806] int tmp ; [L807] int tmp___0 ; [L811] CALL, EXPR isHighWaterSensorDry() [L129] int retValue_acc ; [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); [L811] RET, EXPR isHighWaterSensorDry() [L811] tmp = isHighWaterSensorDry() [L813] COND FALSE !(\read(tmp)) [L816] tmp___0 = 1 [L818] retValue_acc = tmp___0 [L819] return (retValue_acc); [L695] RET, EXPR isHighWaterLevel() [L695] tmp = isHighWaterLevel() [L697] COND TRUE \read(tmp) [L699] CALL activatePump() [L724] int tmp ; [L728] CALL, EXPR isMethaneAlarm() [L749] int retValue_acc ; [L753] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L753] RET, EXPR isMethaneLevelCritical() [L753] retValue_acc = isMethaneLevelCritical() [L755] return (retValue_acc); [L728] RET, EXPR isMethaneAlarm() [L728] tmp = isMethaneAlarm() [L730] COND FALSE !(\read(tmp)) [L734] CALL activatePump__wrappee__highWaterSensor() [L718] pumpRunning = 1 [L734] RET activatePump__wrappee__highWaterSensor() [L699] RET activatePump() [L670] RET processEnvironment() [L676] CALL __utac_acc__Specification4_spec__1() [L146] int tmp ; [L147] int tmp___0 ; [L151] CALL, EXPR getWaterLevel() [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L151] RET, EXPR getWaterLevel() [L151] tmp = getWaterLevel() [L153] COND FALSE !(tmp == 0) [L676] RET __utac_acc__Specification4_spec__1() [L639] RET timeShift() [L596] COND TRUE 1 [L598] COND TRUE splverifierCounter < 4 [L604] tmp = __VERIFIER_nondet_int() [L606] COND FALSE !(\read(tmp)) [L614] tmp___0 = __VERIFIER_nondet_int() [L616] COND FALSE !(\read(tmp___0)) [L624] tmp___2 = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp___2) [L639] CALL timeShift() [L661] COND TRUE \read(pumpRunning) [L663] CALL lowerWaterLevel() [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 [L663] RET lowerWaterLevel() [L668] COND TRUE \read(systemActive) [L670] CALL processEnvironment() [L690] int tmp ; [L693] COND FALSE !(! pumpRunning) [L708] FCALL processEnvironment__wrappee__base() [L670] RET processEnvironment() [L676] CALL __utac_acc__Specification4_spec__1() [L146] int tmp ; [L147] int tmp___0 ; [L151] CALL, EXPR getWaterLevel() [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L151] RET, EXPR getWaterLevel() [L151] tmp = getWaterLevel() [L153] COND TRUE tmp == 0 [L155] CALL, EXPR isPumpRunning() [L760] int retValue_acc ; [L763] retValue_acc = pumpRunning [L764] return (retValue_acc); [L155] RET, EXPR isPumpRunning() [L155] tmp___0 = isPumpRunning() [L157] COND TRUE \read(tmp___0) [L159] CALL __automaton_fail() [L213] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product41.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 628 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 102.3s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 33.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1631 SDtfs, 3161 SDslu, 3585 SDs, 0 SdLazy, 6528 SolverSat, 894 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 18.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=719occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 418 StatesRemovedByMinimization, 7 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...