./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ed9526537bcdfa3a373273dd87f938e4c25e1fe3854b24ed96c7c81db808c7a7 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 09:26:10,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:26:10,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:26:10,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:26:10,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:26:10,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:26:10,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:26:10,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:26:10,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:26:10,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:26:10,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:26:10,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:26:10,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:26:10,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:26:10,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:26:10,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:26:10,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:26:10,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:26:10,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:26:10,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:26:10,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:26:10,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:26:10,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:26:10,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:26:10,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:26:10,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:26:10,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:26:10,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:26:10,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:26:10,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:26:10,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:26:10,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:26:10,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:26:10,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:26:10,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:26:10,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:26:10,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:26:10,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:26:10,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:26:10,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:26:10,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:26:10,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:26:10,536 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:26:10,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:26:10,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:26:10,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:26:10,538 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:26:10,538 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:26:10,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:26:10,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:26:10,539 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:26:10,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:26:10,540 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:26:10,541 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:26:10,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:26:10,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:26:10,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:26:10,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:26:10,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:26:10,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:26:10,542 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:26:10,542 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:26:10,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:26:10,542 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:26:10,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:26:10,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:26:10,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:26:10,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:26:10,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:26:10,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:26:10,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:26:10,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:26:10,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:26:10,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:26:10,545 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:26:10,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:26:10,545 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:26:10,545 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:26:10,545 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:26:10,546 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed9526537bcdfa3a373273dd87f938e4c25e1fe3854b24ed96c7c81db808c7a7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:26:10,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:26:10,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:26:10,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:26:10,882 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:26:10,883 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:26:10,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2023-08-30 09:26:12,110 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:26:12,573 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:26:12,573 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2023-08-30 09:26:12,615 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa56deaf5/db4bcd1f3da140ca865caabecae4318d/FLAG01cf95011 [2023-08-30 09:26:12,636 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa56deaf5/db4bcd1f3da140ca865caabecae4318d [2023-08-30 09:26:12,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:26:12,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:26:12,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:26:12,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:26:12,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:26:12,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:26:12" (1/1) ... [2023-08-30 09:26:12,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@224a7c86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:26:12, skipping insertion in model container [2023-08-30 09:26:12,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:26:12" (1/1) ... [2023-08-30 09:26:12,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:26:12,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:26:13,052 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i[5469,5482] [2023-08-30 09:26:15,128 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 09:26:15,559 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:26:15,562 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:26:15,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:26:15,662 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:26:15,694 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i[5469,5482] [2023-08-30 09:26:15,852 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 09:26:15,944 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:26:15,945 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 09:26:15,981 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:26:16,502 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:26:16,502 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:26:16,502 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:26:16,502 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:26:16,503 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:26:16,503 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:26:16,503 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:26:16,509 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:26:16,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:26:16 WrapperNode [2023-08-30 09:26:16,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:26:16,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:26:16,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:26:16,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:26:16,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:26:16" (1/1) ... [2023-08-30 09:26:16,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:26:16" (1/1) ... [2023-08-30 09:26:16,736 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 53, statements flattened = 736 [2023-08-30 09:26:16,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:26:16,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:26:16,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:26:16,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:26:16,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:26:16" (1/1) ... [2023-08-30 09:26:16,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:26:16" (1/1) ... [2023-08-30 09:26:16,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:26:16" (1/1) ... [2023-08-30 09:26:16,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:26:16" (1/1) ... [2023-08-30 09:26:16,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:26:16" (1/1) ... [2023-08-30 09:26:16,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:26:16" (1/1) ... [2023-08-30 09:26:16,793 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:26:16" (1/1) ... [2023-08-30 09:26:16,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:26:16" (1/1) ... [2023-08-30 09:26:16,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:26:16,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:26:16,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:26:16,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:26:16,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:26:16" (1/1) ... [2023-08-30 09:26:16,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:26:16,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:26:16,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 09:26:16,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 09:26:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 09:26:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 09:26:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:26:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 09:26:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:26:16,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:26:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2023-08-30 09:26:16,897 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2023-08-30 09:26:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 09:26:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:26:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 09:26:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:26:16,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:26:16,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 09:26:16,899 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 09:26:16,899 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-30 09:26:16,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 09:26:16,901 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 09:26:17,305 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:26:17,307 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:26:18,003 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:26:18,012 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:26:18,013 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2023-08-30 09:26:18,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:26:18 BoogieIcfgContainer [2023-08-30 09:26:18,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:26:18,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:26:18,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:26:18,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:26:18,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:26:12" (1/3) ... [2023-08-30 09:26:18,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4275434a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:26:18, skipping insertion in model container [2023-08-30 09:26:18,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:26:16" (2/3) ... [2023-08-30 09:26:18,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4275434a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:26:18, skipping insertion in model container [2023-08-30 09:26:18,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:26:18" (3/3) ... [2023-08-30 09:26:18,023 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2023-08-30 09:26:18,030 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:26:18,052 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:26:18,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-08-30 09:26:18,053 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:26:18,172 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 09:26:18,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 784 places, 831 transitions, 1678 flow [2023-08-30 09:26:18,529 INFO L130 PetriNetUnfolder]: 54/829 cut-off events. [2023-08-30 09:26:18,529 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 09:26:18,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 838 conditions, 829 events. 54/829 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1216 event pairs, 0 based on Foata normal form. 0/747 useless extension candidates. Maximal degree in co-relation 766. Up to 9 conditions per place. [2023-08-30 09:26:18,539 INFO L82 GeneralOperation]: Start removeDead. Operand has 784 places, 831 transitions, 1678 flow [2023-08-30 09:26:18,548 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 774 places, 821 transitions, 1651 flow [2023-08-30 09:26:18,551 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:26:18,559 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 774 places, 821 transitions, 1651 flow [2023-08-30 09:26:18,562 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 774 places, 821 transitions, 1651 flow [2023-08-30 09:26:18,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 774 places, 821 transitions, 1651 flow [2023-08-30 09:26:18,718 INFO L130 PetriNetUnfolder]: 54/821 cut-off events. [2023-08-30 09:26:18,718 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 09:26:18,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 829 conditions, 821 events. 54/821 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1158 event pairs, 0 based on Foata normal form. 0/739 useless extension candidates. Maximal degree in co-relation 766. Up to 9 conditions per place. [2023-08-30 09:26:18,730 INFO L119 LiptonReduction]: Number of co-enabled transitions 14878 [2023-08-30 09:27:25,412 WARN L222 SmtUtils]: Spent 9.04s on a formula simplification that was a NOOP. DAG size: 357 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:27:32,091 WARN L222 SmtUtils]: Spent 6.67s on a formula simplification that was a NOOP. DAG size: 303 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:27:40,253 WARN L222 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 357 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:27:47,526 WARN L222 SmtUtils]: Spent 7.27s on a formula simplification that was a NOOP. DAG size: 303 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:29:47,841 WARN L222 SmtUtils]: Spent 1.92m on a formula simplification. DAG size of input: 583 DAG size of output: 581 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:30:50,453 WARN L222 SmtUtils]: Spent 1.04m on a formula simplification that was a NOOP. DAG size: 581 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:31:53,404 WARN L222 SmtUtils]: Spent 1.05m on a formula simplification. DAG size of input: 583 DAG size of output: 581 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:32:25,322 WARN L222 SmtUtils]: Spent 31.91s on a formula simplification that was a NOOP. DAG size: 581 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:32:34,691 WARN L222 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 280 DAG size of output: 273 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 09:32:38,767 INFO L134 LiptonReduction]: Checked pairs total: 13293 [2023-08-30 09:32:38,768 INFO L136 LiptonReduction]: Total number of compositions: 989 [2023-08-30 09:32:38,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:32:38,795 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@8d523e6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:32:38,796 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-08-30 09:32:38,810 INFO L130 PetriNetUnfolder]: 2/5 cut-off events. [2023-08-30 09:32:38,811 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:32:38,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:32:38,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 09:32:38,814 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:32:38,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:32:38,819 INFO L85 PathProgramCache]: Analyzing trace with hash 3091588, now seen corresponding path program 1 times [2023-08-30 09:32:38,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:32:38,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615879260] [2023-08-30 09:32:38,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:32:38,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:32:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:32:39,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:39,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:32:39,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615879260] [2023-08-30 09:32:39,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615879260] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:32:39,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:32:39,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:32:39,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486592118] [2023-08-30 09:32:39,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:32:39,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 09:32:39,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:32:39,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 09:32:39,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 09:32:39,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 779 out of 1820 [2023-08-30 09:32:39,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 79 transitions, 167 flow. Second operand has 2 states, 2 states have (on average 780.5) internal successors, (1561), 2 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:39,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:32:39,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 779 of 1820 [2023-08-30 09:32:39,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:32:39,664 INFO L130 PetriNetUnfolder]: 187/356 cut-off events. [2023-08-30 09:32:39,665 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2023-08-30 09:32:39,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 356 events. 187/356 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1259 event pairs, 177 based on Foata normal form. 0/295 useless extension candidates. Maximal degree in co-relation 648. Up to 357 conditions per place. [2023-08-30 09:32:39,667 INFO L137 encePairwiseOnDemand]: 1787/1820 looper letters, 38 selfloop transitions, 0 changer transitions 8/46 dead transitions. [2023-08-30 09:32:39,668 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 46 transitions, 193 flow [2023-08-30 09:32:39,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 09:32:39,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 09:32:39,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1637 transitions. [2023-08-30 09:32:39,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44972527472527474 [2023-08-30 09:32:39,687 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1637 transitions. [2023-08-30 09:32:39,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1637 transitions. [2023-08-30 09:32:39,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:32:39,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1637 transitions. [2023-08-30 09:32:39,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 818.5) internal successors, (1637), 2 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:39,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1820.0) internal successors, (5460), 3 states have internal predecessors, (5460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:39,712 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1820.0) internal successors, (5460), 3 states have internal predecessors, (5460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:39,714 INFO L175 Difference]: Start difference. First operand has 64 places, 79 transitions, 167 flow. Second operand 2 states and 1637 transitions. [2023-08-30 09:32:39,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 46 transitions, 193 flow [2023-08-30 09:32:39,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 46 transitions, 188 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 09:32:39,718 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 79 flow [2023-08-30 09:32:39,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1820, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=79, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2023-08-30 09:32:39,723 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -23 predicate places. [2023-08-30 09:32:39,723 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 79 flow [2023-08-30 09:32:39,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 780.5) internal successors, (1561), 2 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:39,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:32:39,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 09:32:39,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:32:39,725 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:32:39,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:32:39,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1323589498, now seen corresponding path program 1 times [2023-08-30 09:32:39,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:32:39,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041718201] [2023-08-30 09:32:39,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:32:39,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:32:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:32:40,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:40,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:32:40,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041718201] [2023-08-30 09:32:40,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041718201] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:32:40,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:32:40,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:32:40,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260703113] [2023-08-30 09:32:40,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:32:40,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:32:40,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:32:40,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:32:40,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:32:40,479 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 771 out of 1820 [2023-08-30 09:32:40,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 772.6666666666666) internal successors, (2318), 3 states have internal predecessors, (2318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:40,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:32:40,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 771 of 1820 [2023-08-30 09:32:40,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:32:40,772 INFO L130 PetriNetUnfolder]: 89/177 cut-off events. [2023-08-30 09:32:40,772 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:32:40,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 177 events. 89/177 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 550 event pairs, 79 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 367. Up to 177 conditions per place. [2023-08-30 09:32:40,774 INFO L137 encePairwiseOnDemand]: 1816/1820 looper letters, 37 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2023-08-30 09:32:40,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 39 transitions, 159 flow [2023-08-30 09:32:40,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:32:40,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:32:40,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2354 transitions. [2023-08-30 09:32:40,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43113553113553116 [2023-08-30 09:32:40,782 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2354 transitions. [2023-08-30 09:32:40,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2354 transitions. [2023-08-30 09:32:40,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:32:40,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2354 transitions. [2023-08-30 09:32:40,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 784.6666666666666) internal successors, (2354), 3 states have internal predecessors, (2354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:40,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1820.0) internal successors, (7280), 4 states have internal predecessors, (7280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:40,805 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1820.0) internal successors, (7280), 4 states have internal predecessors, (7280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:40,805 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 79 flow. Second operand 3 states and 2354 transitions. [2023-08-30 09:32:40,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 39 transitions, 159 flow [2023-08-30 09:32:40,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 39 transitions, 159 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 09:32:40,807 INFO L231 Difference]: Finished difference. Result has 36 places, 39 transitions, 93 flow [2023-08-30 09:32:40,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1820, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=36, PETRI_TRANSITIONS=39} [2023-08-30 09:32:40,808 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -28 predicate places. [2023-08-30 09:32:40,809 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 39 transitions, 93 flow [2023-08-30 09:32:40,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 772.6666666666666) internal successors, (2318), 3 states have internal predecessors, (2318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:40,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:32:40,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 09:32:40,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 09:32:40,812 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:32:40,813 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:32:40,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1796177293, now seen corresponding path program 1 times [2023-08-30 09:32:40,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:32:40,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282607776] [2023-08-30 09:32:40,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:32:40,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:32:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:32:41,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:41,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:32:41,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282607776] [2023-08-30 09:32:41,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282607776] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:32:41,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686219821] [2023-08-30 09:32:41,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:32:41,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:32:41,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:32:41,677 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:32:41,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 09:32:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:32:42,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 09:32:42,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:32:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 09:32:42,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 09:32:42,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686219821] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:32:42,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 09:32:42,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-30 09:32:42,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68572342] [2023-08-30 09:32:42,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:32:42,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:32:42,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:32:42,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:32:42,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:32:42,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 774 out of 1820 [2023-08-30 09:32:42,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 39 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 776.0) internal successors, (2328), 3 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:42,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:32:42,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 774 of 1820 [2023-08-30 09:32:42,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:32:43,183 INFO L130 PetriNetUnfolder]: 74/150 cut-off events. [2023-08-30 09:32:43,184 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:32:43,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 150 events. 74/150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 530 event pairs, 4 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 317. Up to 108 conditions per place. [2023-08-30 09:32:43,185 INFO L137 encePairwiseOnDemand]: 1818/1820 looper letters, 44 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2023-08-30 09:32:43,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 45 transitions, 197 flow [2023-08-30 09:32:43,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:32:43,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:32:43,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2367 transitions. [2023-08-30 09:32:43,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43351648351648353 [2023-08-30 09:32:43,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2367 transitions. [2023-08-30 09:32:43,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2367 transitions. [2023-08-30 09:32:43,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:32:43,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2367 transitions. [2023-08-30 09:32:43,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 789.0) internal successors, (2367), 3 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:43,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1820.0) internal successors, (7280), 4 states have internal predecessors, (7280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:43,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1820.0) internal successors, (7280), 4 states have internal predecessors, (7280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:43,216 INFO L175 Difference]: Start difference. First operand has 36 places, 39 transitions, 93 flow. Second operand 3 states and 2367 transitions. [2023-08-30 09:32:43,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 45 transitions, 197 flow [2023-08-30 09:32:43,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 45 transitions, 193 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 09:32:43,219 INFO L231 Difference]: Finished difference. Result has 36 places, 38 transitions, 89 flow [2023-08-30 09:32:43,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1820, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=36, PETRI_TRANSITIONS=38} [2023-08-30 09:32:43,220 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -28 predicate places. [2023-08-30 09:32:43,221 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 38 transitions, 89 flow [2023-08-30 09:32:43,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 776.0) internal successors, (2328), 3 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:43,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:32:43,227 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 09:32:43,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 09:32:43,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:32:43,436 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:32:43,436 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:32:43,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1796177647, now seen corresponding path program 1 times [2023-08-30 09:32:43,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:32:43,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977731618] [2023-08-30 09:32:43,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:32:43,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:32:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:32:44,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:44,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:32:44,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977731618] [2023-08-30 09:32:44,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977731618] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:32:44,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074678682] [2023-08-30 09:32:44,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:32:44,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:32:44,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:32:44,109 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:32:44,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 09:32:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:32:44,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-30 09:32:44,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:32:44,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:44,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:32:45,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:45,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074678682] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:32:45,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:32:45,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-30 09:32:45,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338763406] [2023-08-30 09:32:45,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:32:45,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 09:32:45,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:32:45,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 09:32:45,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-08-30 09:32:45,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 765 out of 1820 [2023-08-30 09:32:45,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 38 transitions, 89 flow. Second operand has 8 states, 8 states have (on average 766.5) internal successors, (6132), 8 states have internal predecessors, (6132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:45,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:32:45,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 765 of 1820 [2023-08-30 09:32:45,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:32:46,242 INFO L130 PetriNetUnfolder]: 74/155 cut-off events. [2023-08-30 09:32:46,242 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-08-30 09:32:46,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 155 events. 74/155 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 455 event pairs, 64 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 340. Up to 145 conditions per place. [2023-08-30 09:32:46,245 INFO L137 encePairwiseOnDemand]: 1812/1820 looper letters, 31 selfloop transitions, 12 changer transitions 0/43 dead transitions. [2023-08-30 09:32:46,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 191 flow [2023-08-30 09:32:46,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 09:32:46,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 09:32:46,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 5408 transitions. [2023-08-30 09:32:46,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42448979591836733 [2023-08-30 09:32:46,264 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 5408 transitions. [2023-08-30 09:32:46,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 5408 transitions. [2023-08-30 09:32:46,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:32:46,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 5408 transitions. [2023-08-30 09:32:46,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 772.5714285714286) internal successors, (5408), 7 states have internal predecessors, (5408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:46,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1820.0) internal successors, (14560), 8 states have internal predecessors, (14560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:46,298 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1820.0) internal successors, (14560), 8 states have internal predecessors, (14560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:46,298 INFO L175 Difference]: Start difference. First operand has 36 places, 38 transitions, 89 flow. Second operand 7 states and 5408 transitions. [2023-08-30 09:32:46,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 191 flow [2023-08-30 09:32:46,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 43 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:32:46,300 INFO L231 Difference]: Finished difference. Result has 41 places, 43 transitions, 132 flow [2023-08-30 09:32:46,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1820, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=132, PETRI_PLACES=41, PETRI_TRANSITIONS=43} [2023-08-30 09:32:46,300 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -23 predicate places. [2023-08-30 09:32:46,300 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 43 transitions, 132 flow [2023-08-30 09:32:46,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 766.5) internal successors, (6132), 8 states have internal predecessors, (6132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:46,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:32:46,303 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-08-30 09:32:46,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 09:32:46,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-30 09:32:46,513 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:32:46,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:32:46,513 INFO L85 PathProgramCache]: Analyzing trace with hash 2108566440, now seen corresponding path program 2 times [2023-08-30 09:32:46,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:32:46,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589966641] [2023-08-30 09:32:46,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:32:46,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:32:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:32:47,374 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:47,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:32:47,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589966641] [2023-08-30 09:32:47,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589966641] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:32:47,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848404064] [2023-08-30 09:32:47,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 09:32:47,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:32:47,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:32:47,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:32:47,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 09:32:48,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 09:32:48,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:32:48,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 09:32:48,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:32:48,937 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:48,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:32:49,211 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:49,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848404064] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:32:49,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:32:49,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-30 09:32:49,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948297581] [2023-08-30 09:32:49,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:32:49,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 09:32:49,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:32:49,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 09:32:49,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2023-08-30 09:32:49,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 765 out of 1820 [2023-08-30 09:32:49,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 43 transitions, 132 flow. Second operand has 17 states, 17 states have (on average 766.2352941176471) internal successors, (13026), 17 states have internal predecessors, (13026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:49,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:32:49,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 765 of 1820 [2023-08-30 09:32:49,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:32:51,611 INFO L130 PetriNetUnfolder]: 74/164 cut-off events. [2023-08-30 09:32:51,611 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:32:51,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 164 events. 74/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 481 event pairs, 64 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 387. Up to 150 conditions per place. [2023-08-30 09:32:51,613 INFO L137 encePairwiseOnDemand]: 1812/1820 looper letters, 35 selfloop transitions, 17 changer transitions 0/52 dead transitions. [2023-08-30 09:32:51,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 52 transitions, 284 flow [2023-08-30 09:32:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 09:32:51,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 09:32:51,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 9250 transitions. [2023-08-30 09:32:51,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42353479853479853 [2023-08-30 09:32:51,637 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 9250 transitions. [2023-08-30 09:32:51,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 9250 transitions. [2023-08-30 09:32:51,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:32:51,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 9250 transitions. [2023-08-30 09:32:51,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 770.8333333333334) internal successors, (9250), 12 states have internal predecessors, (9250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:51,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1820.0) internal successors, (23660), 13 states have internal predecessors, (23660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:51,695 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1820.0) internal successors, (23660), 13 states have internal predecessors, (23660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:51,695 INFO L175 Difference]: Start difference. First operand has 41 places, 43 transitions, 132 flow. Second operand 12 states and 9250 transitions. [2023-08-30 09:32:51,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 52 transitions, 284 flow [2023-08-30 09:32:51,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 52 transitions, 249 flow, removed 13 selfloop flow, removed 3 redundant places. [2023-08-30 09:32:51,700 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 241 flow [2023-08-30 09:32:51,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1820, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=241, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2023-08-30 09:32:51,702 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -9 predicate places. [2023-08-30 09:32:51,702 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 241 flow [2023-08-30 09:32:51,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 766.2352941176471) internal successors, (13026), 17 states have internal predecessors, (13026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:32:51,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:32:51,706 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1] [2023-08-30 09:32:51,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 09:32:51,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:32:51,918 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:32:51,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:32:51,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1528993352, now seen corresponding path program 3 times [2023-08-30 09:32:51,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:32:51,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436126867] [2023-08-30 09:32:51,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:32:51,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:32:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:32:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:32:52,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:32:52,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436126867] [2023-08-30 09:32:52,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436126867] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:32:52,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307929112] [2023-08-30 09:32:52,886 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 09:32:52,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:32:52,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:32:52,889 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:32:52,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 09:33:04,726 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-30 09:33:04,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:33:04,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 32 conjunts are in the unsatisfiable core [2023-08-30 09:33:04,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:33:05,006 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:33:05,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:33:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:33:05,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307929112] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:33:05,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:33:05,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-08-30 09:33:05,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865593214] [2023-08-30 09:33:05,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:33:05,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-30 09:33:05,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:33:05,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-30 09:33:05,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=840, Unknown=0, NotChecked=0, Total=1190 [2023-08-30 09:33:08,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 765 out of 1820 [2023-08-30 09:33:08,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 241 flow. Second operand has 35 states, 35 states have (on average 766.1142857142858) internal successors, (26814), 35 states have internal predecessors, (26814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:33:08,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:33:08,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 765 of 1820 [2023-08-30 09:33:08,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:33:31,230 WARN L222 SmtUtils]: Spent 18.29s on a formula simplification. DAG size of input: 67 DAG size of output: 47 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:33:41,186 WARN L222 SmtUtils]: Spent 8.30s on a formula simplification. DAG size of input: 61 DAG size of output: 43 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:33:47,758 WARN L222 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 55 DAG size of output: 39 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:33:56,606 INFO L130 PetriNetUnfolder]: 74/182 cut-off events. [2023-08-30 09:33:56,607 INFO L131 PetriNetUnfolder]: For 209/209 co-relation queries the response was YES. [2023-08-30 09:33:56,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 182 events. 74/182 cut-off events. For 209/209 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 456 event pairs, 64 based on Foata normal form. 18/166 useless extension candidates. Maximal degree in co-relation 488. Up to 145 conditions per place. [2023-08-30 09:33:56,608 INFO L137 encePairwiseOnDemand]: 1812/1820 looper letters, 31 selfloop transitions, 39 changer transitions 0/70 dead transitions. [2023-08-30 09:33:56,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 70 transitions, 489 flow [2023-08-30 09:33:56,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-08-30 09:33:56,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-08-30 09:33:56,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 19231 transitions. [2023-08-30 09:33:56,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42265934065934063 [2023-08-30 09:33:56,640 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 19231 transitions. [2023-08-30 09:33:56,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 19231 transitions. [2023-08-30 09:33:56,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:33:56,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 19231 transitions. [2023-08-30 09:33:56,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 769.24) internal successors, (19231), 25 states have internal predecessors, (19231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:33:56,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 1820.0) internal successors, (47320), 26 states have internal predecessors, (47320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:33:56,715 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 1820.0) internal successors, (47320), 26 states have internal predecessors, (47320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:33:56,716 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 241 flow. Second operand 25 states and 19231 transitions. [2023-08-30 09:33:56,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 70 transitions, 489 flow [2023-08-30 09:33:56,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 70 transitions, 465 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-08-30 09:33:56,721 INFO L231 Difference]: Finished difference. Result has 77 places, 70 transitions, 407 flow [2023-08-30 09:33:56,721 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1820, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=407, PETRI_PLACES=77, PETRI_TRANSITIONS=70} [2023-08-30 09:33:56,722 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 13 predicate places. [2023-08-30 09:33:56,722 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 70 transitions, 407 flow [2023-08-30 09:33:56,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 766.1142857142858) internal successors, (26814), 35 states have internal predecessors, (26814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:33:56,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:33:56,727 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1] [2023-08-30 09:33:56,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-30 09:33:56,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:33:56,945 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 09:33:56,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:33:56,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1477313416, now seen corresponding path program 4 times [2023-08-30 09:33:56,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:33:56,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725267390] [2023-08-30 09:33:56,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:33:56,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:33:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:33:59,138 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:33:59,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:33:59,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725267390] [2023-08-30 09:33:59,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725267390] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:33:59,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23053549] [2023-08-30 09:33:59,139 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-30 09:33:59,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:33:59,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:33:59,140 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:33:59,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-30 09:34:08,457 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-30 09:34:08,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:34:08,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 51 conjunts are in the unsatisfiable core [2023-08-30 09:34:08,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:34:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:09,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:34:11,025 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:11,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23053549] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:34:11,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:34:11,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 70 [2023-08-30 09:34:11,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332722202] [2023-08-30 09:34:11,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:34:11,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-08-30 09:34:11,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:11,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-08-30 09:34:11,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1221, Invalid=3749, Unknown=0, NotChecked=0, Total=4970 [2023-08-30 09:34:18,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 765 out of 1820 [2023-08-30 09:34:18,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 70 transitions, 407 flow. Second operand has 71 states, 71 states have (on average 766.056338028169) internal successors, (54390), 71 states have internal predecessors, (54390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:18,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:18,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 765 of 1820 [2023-08-30 09:34:18,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:30,354 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false [2023-08-30 09:36:26,400 WARN L222 SmtUtils]: Spent 1.05m on a formula simplification that was a NOOP. DAG size: 91 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:36:28,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 09:38:28,827 WARN L222 SmtUtils]: Spent 1.02m on a formula simplification that was a NOOP. DAG size: 87 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:39:37,750 WARN L222 SmtUtils]: Spent 26.32s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 09:39:39,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15