/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_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:59:24,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:59:24,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:59:24,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:59:24,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:59:24,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:59:24,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:59:24,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:59:24,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:59:24,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:59:24,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:59:24,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:59:24,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:59:24,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:59:24,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:59:24,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:59:24,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:59:24,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:59:24,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:59:24,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:59:24,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:59:24,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:59:24,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:59:24,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:59:24,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:59:24,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:59:24,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:59:24,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:59:24,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:59:24,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:59:24,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:59:24,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:59:24,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:59:24,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:59:24,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:59:24,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:59:24,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:59:24,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:59:24,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:59:24,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:59:24,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:59:24,497 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 19:59:24,510 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:59:24,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:59:24,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:59:24,513 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:59:24,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:59:24,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:59:24,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:59:24,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:59:24,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:59:24,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:59:24,515 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:59:24,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:59:24,516 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:59:24,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:59:24,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:59:24,517 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:59:24,517 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:59:24,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:59:24,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:59:24,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:59:24,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:59:24,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:59:24,519 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:59:24,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:59:24,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:59:24,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:59:24,913 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:59:24,913 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:59:24,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product08.cil.c [2020-10-23 19:59:25,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fdb17088/edef44f6c3d645faa104dd7ef8fd8a70/FLAG71c22c8a8 [2020-10-23 19:59:25,708 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:59:25,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product08.cil.c [2020-10-23 19:59:25,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fdb17088/edef44f6c3d645faa104dd7ef8fd8a70/FLAG71c22c8a8 [2020-10-23 19:59:25,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fdb17088/edef44f6c3d645faa104dd7ef8fd8a70 [2020-10-23 19:59:25,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:59:25,956 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:59:25,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:59:25,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:59:25,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:59:25,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:59:25" (1/1) ... [2020-10-23 19:59:25,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@369f7adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:25, skipping insertion in model container [2020-10-23 19:59:25,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:59:25" (1/1) ... [2020-10-23 19:59:25,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:59:26,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:59:26,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:59:26,470 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:59:26,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:59:26,589 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:59:26,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:26 WrapperNode [2020-10-23 19:59:26,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:59:26,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:59:26,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:59:26,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:59:26,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:26" (1/1) ... [2020-10-23 19:59:26,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:26" (1/1) ... [2020-10-23 19:59:26,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:26" (1/1) ... [2020-10-23 19:59:26,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:26" (1/1) ... [2020-10-23 19:59:26,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:26" (1/1) ... [2020-10-23 19:59:26,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:26" (1/1) ... [2020-10-23 19:59:26,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:26" (1/1) ... [2020-10-23 19:59:26,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:59:26,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:59:26,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:59:26,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:59:26,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:26" (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 19:59:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:59:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:59:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:59:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:59:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:59:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:59:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:59:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:59:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:59:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:59:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:59:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:59:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:59:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:59:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:59:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:59:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:59:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:59:26,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:59:26,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:59:26,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:59:26,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:59:26,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:59:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:59:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:59:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 19:59:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:59:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:59:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:59:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:59:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:59:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:59:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:59:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:59:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:59:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:59:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:59:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:59:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:59:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:59:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:59:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:59:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:59:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:59:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:59:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:59:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:59:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:59:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:59:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:59:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:59:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:59:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:59:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:59:26,795 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:59:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:59:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:59:26,796 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:59:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:59:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:59:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:59:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:59:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:59:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:59:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:59:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:59:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:59:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:59:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:59:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:59:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:59:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:59:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:59:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:59:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:59:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:59:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:59:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:59:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:59:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 19:59:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:59:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:59:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:59:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:59:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:59:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:59:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:59:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:59:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:59:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:59:28,165 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:59:28,166 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:59:28,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:59:28 BoogieIcfgContainer [2020-10-23 19:59:28,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:59:28,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:59:28,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:59:28,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:59:28,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:59:25" (1/3) ... [2020-10-23 19:59:28,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21beba6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:59:28, skipping insertion in model container [2020-10-23 19:59:28,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:26" (2/3) ... [2020-10-23 19:59:28,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21beba6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:59:28, skipping insertion in model container [2020-10-23 19:59:28,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:59:28" (3/3) ... [2020-10-23 19:59:28,179 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product08.cil.c [2020-10-23 19:59:28,191 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:59:28,196 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:59:28,210 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:59:28,235 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:59:28,235 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:59:28,235 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:59:28,235 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:59:28,235 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:59:28,236 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:59:28,236 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:59:28,236 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:59:28,258 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states. [2020-10-23 19:59:28,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 19:59:28,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:28,280 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 19:59:28,280 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 19:59:28,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:28,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1735553940, now seen corresponding path program 1 times [2020-10-23 19:59:28,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:28,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1432538074] [2020-10-23 19:59:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:28,369 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:29,107 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:29,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:29,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:29,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:29,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:29,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:29,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:59:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:29,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:59:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:29,329 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 19:59:29,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1432538074] [2020-10-23 19:59:29,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:29,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:59:29,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201520621] [2020-10-23 19:59:29,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:59:29,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:29,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:59:29,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:59:29,357 INFO L87 Difference]: Start difference. First operand 288 states. Second operand 3 states. [2020-10-23 19:59:31,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:31,012 INFO L93 Difference]: Finished difference Result 434 states and 519 transitions. [2020-10-23 19:59:31,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:59:31,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 19:59:31,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:31,043 INFO L225 Difference]: With dead ends: 434 [2020-10-23 19:59:31,044 INFO L226 Difference]: Without dead ends: 276 [2020-10-23 19:59:31,055 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 19:59:31,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-10-23 19:59:31,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234. [2020-10-23 19:59:31,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-23 19:59:31,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 252 transitions. [2020-10-23 19:59:31,243 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 252 transitions. Word has length 148 [2020-10-23 19:59:31,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:31,244 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 252 transitions. [2020-10-23 19:59:31,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:59:31,245 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 252 transitions. [2020-10-23 19:59:31,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 19:59:31,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:31,249 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 19:59:31,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:59:31,250 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 19:59:31,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:31,250 INFO L82 PathProgramCache]: Analyzing trace with hash 902096401, now seen corresponding path program 1 times [2020-10-23 19:59:31,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:31,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341157081] [2020-10-23 19:59:31,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:31,261 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:31,652 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:31,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:31,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:31,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:31,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:31,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:31,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:59:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:31,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:59:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:31,804 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 19:59:31,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1341157081] [2020-10-23 19:59:31,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:31,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:59:31,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290658224] [2020-10-23 19:59:31,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:59:31,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:31,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:59:31,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:59:31,811 INFO L87 Difference]: Start difference. First operand 234 states and 252 transitions. Second operand 4 states. [2020-10-23 19:59:32,580 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:59:33,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:33,381 INFO L93 Difference]: Finished difference Result 338 states and 378 transitions. [2020-10-23 19:59:33,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:59:33,383 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 19:59:33,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:33,387 INFO L225 Difference]: With dead ends: 338 [2020-10-23 19:59:33,387 INFO L226 Difference]: Without dead ends: 259 [2020-10-23 19:59:33,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:59:33,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-10-23 19:59:33,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 224. [2020-10-23 19:59:33,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-23 19:59:33,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 239 transitions. [2020-10-23 19:59:33,468 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 239 transitions. Word has length 149 [2020-10-23 19:59:33,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:33,469 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 239 transitions. [2020-10-23 19:59:33,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:59:33,470 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 239 transitions. [2020-10-23 19:59:33,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 19:59:33,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:33,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:33,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:59:33,473 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 19:59:33,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:33,473 INFO L82 PathProgramCache]: Analyzing trace with hash 264718036, now seen corresponding path program 1 times [2020-10-23 19:59:33,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:33,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [666177650] [2020-10-23 19:59:33,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:33,478 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:33,889 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:33,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:33,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:33,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:33,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:33,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:34,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:59:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:34,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:59:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:34,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:59:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:34,064 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 19:59:34,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [666177650] [2020-10-23 19:59:34,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:34,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:59:34,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241369019] [2020-10-23 19:59:34,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:59:34,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:34,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:59:34,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:59:34,068 INFO L87 Difference]: Start difference. First operand 224 states and 239 transitions. Second operand 10 states. [2020-10-23 19:59:34,736 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:35,118 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:59:35,448 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:59:35,785 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:36,097 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:36,393 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:37,424 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:59:39,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:39,431 INFO L93 Difference]: Finished difference Result 594 states and 692 transitions. [2020-10-23 19:59:39,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:59:39,432 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 19:59:39,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:39,439 INFO L225 Difference]: With dead ends: 594 [2020-10-23 19:59:39,439 INFO L226 Difference]: Without dead ends: 485 [2020-10-23 19:59:39,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:59:39,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-10-23 19:59:39,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 392. [2020-10-23 19:59:39,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 392 states. [2020-10-23 19:59:39,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 436 transitions. [2020-10-23 19:59:39,686 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 436 transitions. Word has length 162 [2020-10-23 19:59:39,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:39,689 INFO L481 AbstractCegarLoop]: Abstraction has 392 states and 436 transitions. [2020-10-23 19:59:39,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:59:39,689 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 436 transitions. [2020-10-23 19:59:39,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 19:59:39,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:39,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:39,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:59:39,697 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 19:59:39,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:39,698 INFO L82 PathProgramCache]: Analyzing trace with hash -647917602, now seen corresponding path program 1 times [2020-10-23 19:59:39,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:39,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347359195] [2020-10-23 19:59:39,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:39,704 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:40,058 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:40,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:40,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:40,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:40,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:40,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:40,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:59:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:40,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 19:59:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:40,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 19:59:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:40,314 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 19:59:40,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347359195] [2020-10-23 19:59:40,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:40,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 19:59:40,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271118324] [2020-10-23 19:59:40,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 19:59:40,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:40,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 19:59:40,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 19:59:40,318 INFO L87 Difference]: Start difference. First operand 392 states and 436 transitions. Second operand 14 states. [2020-10-23 19:59:40,891 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:41,312 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:59:41,612 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:59:41,916 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:42,222 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:42,513 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:43,176 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:59:44,226 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:44,589 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:44,993 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:45,375 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:59:45,659 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:45,970 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:59:46,285 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:46,580 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:46,890 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:59:47,283 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:47,679 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:59:48,048 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:48,338 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:49,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:49,759 INFO L93 Difference]: Finished difference Result 1297 states and 1596 transitions. [2020-10-23 19:59:49,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 19:59:49,760 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2020-10-23 19:59:49,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:49,769 INFO L225 Difference]: With dead ends: 1297 [2020-10-23 19:59:49,769 INFO L226 Difference]: Without dead ends: 1020 [2020-10-23 19:59:49,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 19:59:49,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2020-10-23 19:59:50,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 881. [2020-10-23 19:59:50,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-10-23 19:59:50,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1017 transitions. [2020-10-23 19:59:50,193 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1017 transitions. Word has length 167 [2020-10-23 19:59:50,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:50,194 INFO L481 AbstractCegarLoop]: Abstraction has 881 states and 1017 transitions. [2020-10-23 19:59:50,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 19:59:50,194 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1017 transitions. [2020-10-23 19:59:50,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 19:59:50,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:50,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:50,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:59:50,199 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 19:59:50,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:50,200 INFO L82 PathProgramCache]: Analyzing trace with hash 560380918, now seen corresponding path program 1 times [2020-10-23 19:59:50,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:50,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061393894] [2020-10-23 19:59:50,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:50,204 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,513 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:50,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:59:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:59:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:59:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 19:59:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:50,653 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 19:59:50,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061393894] [2020-10-23 19:59:50,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:50,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:59:50,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933630831] [2020-10-23 19:59:50,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:59:50,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:50,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:59:50,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:59:50,659 INFO L87 Difference]: Start difference. First operand 881 states and 1017 transitions. Second operand 6 states. [2020-10-23 19:59:51,181 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:52,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:52,402 INFO L93 Difference]: Finished difference Result 1525 states and 1838 transitions. [2020-10-23 19:59:52,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 19:59:52,406 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-10-23 19:59:52,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:52,416 INFO L225 Difference]: With dead ends: 1525 [2020-10-23 19:59:52,417 INFO L226 Difference]: Without dead ends: 759 [2020-10-23 19:59:52,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:59:52,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2020-10-23 19:59:52,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 656. [2020-10-23 19:59:52,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 656 states. [2020-10-23 19:59:52,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 715 transitions. [2020-10-23 19:59:52,728 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 715 transitions. Word has length 172 [2020-10-23 19:59:52,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:52,729 INFO L481 AbstractCegarLoop]: Abstraction has 656 states and 715 transitions. [2020-10-23 19:59:52,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:59:52,729 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 715 transitions. [2020-10-23 19:59:52,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-23 19:59:52,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:52,734 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] [2020-10-23 19:59:52,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:59:52,734 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 19:59:52,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:52,735 INFO L82 PathProgramCache]: Analyzing trace with hash 219945054, now seen corresponding path program 1 times [2020-10-23 19:59:52,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:52,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505405548] [2020-10-23 19:59:52,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:52,879 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 19:59:53,108 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 19:59:53,293 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 19:59:53,505 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 19:59:53,707 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 19:59:53,907 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 19:59:54,101 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 19:59:54,292 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 19:59:54,467 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 19:59:54,654 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 19:59:54,840 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 19:59:55,028 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 19:59:55,216 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 19:59:55,434 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 19:59:55,628 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 19:59:55,828 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 19:59:56,018 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 19:59:56,203 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 19:59:59,057 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:00:01,628 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:00:01,638 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:04,140 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:00:04,145 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:06,576 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:00:06,584 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:09,100 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:00:10,118 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:00:10,122 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:12,610 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:00:12,616 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:15,093 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:00:15,100 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:15,378 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:00:15,654 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:00:15,935 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:00:16,197 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:00:16,467 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:00:16,757 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:00:17,032 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:00:17,305 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:00:17,308 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:19,720 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:00:22,190 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:00:24,633 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:00:24,637 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:25,729 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:00:25,734 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:28,242 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:00:28,247 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:30,730 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:00:30,735 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:31,766 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:00:31,771 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:34,189 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:00:34,193 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:34,197 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:35,219 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:00:35,223 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:37,664 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:00:37,669 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:38,986 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:00:38,991 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:41,413 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:00:41,418 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:43,849 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:00:43,853 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:46,291 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:00:46,296 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:48,754 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:00:48,758 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:49,892 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:00:49,896 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:49,899 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:52,322 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:00:52,326 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:53,565 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:00:53,569 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:55,982 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:00:58,432 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:00:58,436 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:00,838 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:01:00,842 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:03,298 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:01:03,301 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:05,722 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:01:05,726 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:08,140 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:01:08,145 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:08,148 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:10,652 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:10,656 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:13,130 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:01:13,134 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:15,628 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:15,631 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:18,087 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:01:18,091 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:20,583 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:20,589 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:23,055 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:01:23,058 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:25,574 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:01:25,578 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:28,063 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:01:28,067 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:28,070 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:28,343 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:01:28,625 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:01:28,915 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:01:29,222 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:01:29,507 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:01:29,790 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:01:30,072 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:01:30,353 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:01:30,355 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:32,817 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:01:35,255 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:01:36,551 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:01:38,179 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:01:38,182 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:40,646 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:01:40,650 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:43,106 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:01:43,109 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:45,547 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:01:45,550 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:46,934 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:01:46,937 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:46,941 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:49,426 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:01:49,429 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:52,180 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:01:52,183 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:54,723 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:01:54,726 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:56,394 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:01:56,398 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:58,893 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:02:01,480 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:02:04,015 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 173 [2020-10-23 20:02:04,017 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:06,511 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:02:06,513 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:06,517 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:06,803 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:02:07,092 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:02:07,380 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:07,666 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:02:07,966 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:08,255 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:08,545 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:02:08,833 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:02:08,835 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:11,343 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:02:11,347 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:13,847 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:02:13,850 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:16,443 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:02:16,447 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:19,267 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:02:19,270 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:21,921 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:02:24,529 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:02:27,095 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:02:27,099 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:29,730 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:02:29,734 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:29,738 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:30,067 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:30,416 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:02:30,749 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:31,071 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:31,374 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:02:31,683 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:32,000 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:02:32,306 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:02:32,308 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:32,622 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:32,945 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:33,285 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:33,621 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:33,965 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:34,288 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:34,616 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:34,941 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:02:34,943 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:37,581 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:02:37,585 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:39,801 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:02:39,805 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:42,394 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:02:42,397 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:44,957 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:02:47,511 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:02:50,133 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:02:50,137 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:52,827 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:02:55,520 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:02:55,524 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:55,527 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:58,043 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:03:00,674 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:03:03,346 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:03,349 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:05,977 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:03:08,657 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:08,660 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:11,296 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:03:11,299 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:13,992 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:03:16,657 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:16,662 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:19,295 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:03:19,299 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:22,029 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:03:22,033 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:24,674 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:03:24,681 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:27,352 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:03:30,066 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:03:32,752 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:03:32,756 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:35,491 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:03:38,250 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:03:38,254 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:38,257 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:40,908 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:40,911 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:43,594 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:03:46,292 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:03:49,077 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:03:49,081 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:51,763 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:51,766 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:54,455 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:54,457 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:57,205 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:03:59,922 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:03:59,927 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:04:00,288 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:00,635 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:01,024 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:01,427 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:01,800 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:02,158 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:02,542 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:02,929 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:02,931 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:04:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:04:03,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:04:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:04:03,978 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:04:04,214 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:04:04,215 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:04:04,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:04:04,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:04:04 BoogieIcfgContainer [2020-10-23 20:04:04,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:04:04,265 INFO L168 Benchmark]: Toolchain (without parser) took 278313.58 ms. Allocated memory was 155.2 MB in the beginning and 713.0 MB in the end (delta: 557.8 MB). Free memory was 130.3 MB in the beginning and 278.2 MB in the end (delta: -147.9 MB). Peak memory consumption was 410.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:04:04,265 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 155.2 MB. Free memory is still 130.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:04:04,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.39 ms. Allocated memory is still 155.2 MB. Free memory was 129.6 MB in the beginning and 109.5 MB in the end (delta: 20.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:04:04,268 INFO L168 Benchmark]: Boogie Preprocessor took 104.54 ms. Allocated memory is still 155.2 MB. Free memory was 109.5 MB in the beginning and 105.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:04:04,269 INFO L168 Benchmark]: RCFGBuilder took 1469.01 ms. Allocated memory was 155.2 MB in the beginning and 190.8 MB in the end (delta: 35.7 MB). Free memory was 105.5 MB in the beginning and 146.3 MB in the end (delta: -40.7 MB). Peak memory consumption was 42.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:04:04,274 INFO L168 Benchmark]: TraceAbstraction took 276091.42 ms. Allocated memory was 190.8 MB in the beginning and 713.0 MB in the end (delta: 522.2 MB). Free memory was 145.7 MB in the beginning and 278.2 MB in the end (delta: -132.5 MB). Peak memory consumption was 389.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:04:04,282 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 155.2 MB. Free memory is still 130.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 628.39 ms. Allocated memory is still 155.2 MB. Free memory was 129.6 MB in the beginning and 109.5 MB in the end (delta: 20.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 104.54 ms. Allocated memory is still 155.2 MB. Free memory was 109.5 MB in the beginning and 105.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1469.01 ms. Allocated memory was 155.2 MB in the beginning and 190.8 MB in the end (delta: 35.7 MB). Free memory was 105.5 MB in the beginning and 146.3 MB in the end (delta: -40.7 MB). Peak memory consumption was 42.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 276091.42 ms. Allocated memory was 190.8 MB in the beginning and 713.0 MB in the end (delta: 522.2 MB). Free memory was 145.7 MB in the beginning and 278.2 MB in the end (delta: -132.5 MB). Peak memory consumption was 389.7 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: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L166] int cleanupTimeShifts = 4; [L434] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L663] int pumpRunning = 0; [L664] int systemActive = 1; [L242] int retValue_acc ; [L243] int tmp ; [L247] FCALL select_helpers() [L248] FCALL select_features() [L249] CALL, EXPR valid_product() [L157] int retValue_acc ; [L160] retValue_acc = 1 [L161] return (retValue_acc); [L249] RET, EXPR valid_product() [L249] tmp = valid_product() [L251] COND TRUE \read(tmp) [L253] FCALL setup() [L254] CALL runTest() [L236] CALL test() [L820] int splverifierCounter ; [L821] int tmp ; [L822] int tmp___0 ; [L823] int tmp___1 ; [L824] int tmp___2 ; [L827] splverifierCounter = 0 [L829] COND TRUE 1 [L831] COND TRUE splverifierCounter < 4 [L837] tmp = __VERIFIER_nondet_int() [L839] COND TRUE \read(tmp) [L841] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L841] RET waterRise() [L847] tmp___0 = __VERIFIER_nondet_int() [L849] COND FALSE !(\read(tmp___0)) [L857] tmp___2 = __VERIFIER_nondet_int() [L859] COND FALSE !(\read(tmp___2)) [L865] tmp___1 = __VERIFIER_nondet_int() [L867] COND TRUE \read(tmp___1) [L869] CALL stopSystem() [L799] COND FALSE !(\read(pumpRunning)) [L806] systemActive = 0 [L869] RET stopSystem() [L876] CALL timeShift() [L670] COND FALSE !(\read(pumpRunning)) [L677] COND FALSE !(\read(systemActive)) [L685] CALL __utac_acc__Specification4_spec__1() [L634] int tmp ; [L635] int tmp___0 ; [L639] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L639] RET, EXPR getWaterLevel() [L639] tmp = getWaterLevel() [L641] COND FALSE !(tmp == 0) [L685] RET __utac_acc__Specification4_spec__1() [L876] RET timeShift() [L829] COND TRUE 1 [L831] COND TRUE splverifierCounter < 4 [L837] tmp = __VERIFIER_nondet_int() [L839] COND TRUE \read(tmp) [L841] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L841] RET waterRise() [L847] tmp___0 = __VERIFIER_nondet_int() [L849] COND FALSE !(\read(tmp___0)) [L857] tmp___2 = __VERIFIER_nondet_int() [L859] COND FALSE !(\read(tmp___2)) [L865] tmp___1 = __VERIFIER_nondet_int() [L867] COND FALSE !(\read(tmp___1)) [L876] CALL timeShift() [L670] COND FALSE !(\read(pumpRunning)) [L677] COND FALSE !(\read(systemActive)) [L685] CALL __utac_acc__Specification4_spec__1() [L634] int tmp ; [L635] int tmp___0 ; [L639] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L639] RET, EXPR getWaterLevel() [L639] tmp = getWaterLevel() [L641] COND TRUE tmp == 0 [L643] CALL, EXPR isPumpRunning() [L751] int retValue_acc ; [L754] retValue_acc = pumpRunning [L755] return (retValue_acc); [L643] RET, EXPR isPumpRunning() [L643] tmp___0 = isPumpRunning() [L645] COND TRUE \read(tmp___0) [L647] CALL __automaton_fail() [L892] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product08.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 607 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 275.9s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 19.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1080 SDtfs, 1952 SDslu, 2203 SDs, 0 SdLazy, 3879 SolverSat, 732 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=881occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 412 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...