./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_change_pc8736x_gpio_current.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 51c838f928ac384d8fdc78da2570bfd8622730962319208ac7b8c7e3db94de0f --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 17:14:46,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 17:14:46,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 17:14:46,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 17:14:46,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 17:14:46,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 17:14:46,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 17:14:46,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 17:14:46,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 17:14:46,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 17:14:46,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 17:14:46,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 17:14:46,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 17:14:46,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 17:14:46,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 17:14:46,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 17:14:46,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 17:14:46,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 17:14:46,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 17:14:46,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 17:14:46,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 17:14:46,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 17:14:46,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 17:14:46,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 17:14:46,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 17:14:46,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 17:14:46,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 17:14:46,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 17:14:46,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 17:14:46,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 17:14:46,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 17:14:46,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 17:14:46,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 17:14:46,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 17:14:46,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 17:14:46,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 17:14:46,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 17:14:46,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 17:14:46,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 17:14:46,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 17:14:46,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 17:14:46,704 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 17:14:46,723 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 17:14:46,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 17:14:46,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 17:14:46,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 17:14:46,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 17:14:46,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 17:14:46,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 17:14:46,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 17:14:46,725 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 17:14:46,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 17:14:46,726 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 17:14:46,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 17:14:46,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 17:14:46,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 17:14:46,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 17:14:46,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 17:14:46,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 17:14:46,727 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 17:14:46,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 17:14:46,727 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 17:14:46,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 17:14:46,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 17:14:46,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 17:14:46,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 17:14:46,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:14:46,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 17:14:46,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 17:14:46,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 17:14:46,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 17:14:46,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 17:14:46,729 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 17:14:46,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 17:14:46,729 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 17:14:46,729 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 17:14:46,730 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 17:14:46,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51c838f928ac384d8fdc78da2570bfd8622730962319208ac7b8c7e3db94de0f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 17:14:46,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 17:14:46,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 17:14:46,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 17:14:46,974 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 17:14:46,975 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 17:14:46,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-08-30 17:14:47,992 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 17:14:48,372 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 17:14:48,372 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-08-30 17:14:48,403 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fee87caa/b52b24166f3541f185f146ee8e0ea0f2/FLAG8dd029fd8 [2023-08-30 17:14:48,415 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fee87caa/b52b24166f3541f185f146ee8e0ea0f2 [2023-08-30 17:14:48,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 17:14:48,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 17:14:48,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 17:14:48,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 17:14:48,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 17:14:48,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:14:48" (1/1) ... [2023-08-30 17:14:48,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5055070f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:14:48, skipping insertion in model container [2023-08-30 17:14:48,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:14:48" (1/1) ... [2023-08-30 17:14:48,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 17:14:48,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 17:14:48,730 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_change_pc8736x_gpio_current.i[5469,5482] [2023-08-30 17:14:51,143 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 17:14:51,481 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:14:51,482 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:14:51,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:14:51,528 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 17:14:51,537 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_change_pc8736x_gpio_current.i[5469,5482] [2023-08-30 17:14:51,664 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 17:14:51,693 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:14:51,694 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:14:51,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:14:52,163 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:14:52,163 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:14:52,163 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:14:52,163 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:14:52,163 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:14:52,163 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:14:52,164 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:14:52,168 INFO L208 MainTranslator]: Completed translation [2023-08-30 17:14:52,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:14:52 WrapperNode [2023-08-30 17:14:52,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 17:14:52,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 17:14:52,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 17:14:52,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 17:14:52,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:14:52" (1/1) ... [2023-08-30 17:14:52,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:14:52" (1/1) ... [2023-08-30 17:14:52,322 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 54, statements flattened = 722 [2023-08-30 17:14:52,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 17:14:52,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 17:14:52,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 17:14:52,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 17:14:52,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:14:52" (1/1) ... [2023-08-30 17:14:52,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:14:52" (1/1) ... [2023-08-30 17:14:52,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:14:52" (1/1) ... [2023-08-30 17:14:52,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:14:52" (1/1) ... [2023-08-30 17:14:52,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:14:52" (1/1) ... [2023-08-30 17:14:52,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:14:52" (1/1) ... [2023-08-30 17:14:52,388 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:14:52" (1/1) ... [2023-08-30 17:14:52,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:14:52" (1/1) ... [2023-08-30 17:14:52,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 17:14:52,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 17:14:52,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 17:14:52,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 17:14:52,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:14:52" (1/1) ... [2023-08-30 17:14:52,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:14:52,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:14:52,433 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 17:14:52,446 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 17:14:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 17:14:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 17:14:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 17:14:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 17:14:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 17:14:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 17:14:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-30 17:14:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-30 17:14:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 17:14:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 17:14:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 17:14:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 17:14:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 17:14:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 17:14:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 17:14:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 17:14:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 17:14:52,465 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 17:14:52,824 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 17:14:52,826 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 17:14:53,472 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 17:14:53,479 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 17:14:53,480 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-08-30 17:14:53,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:14:53 BoogieIcfgContainer [2023-08-30 17:14:53,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 17:14:53,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 17:14:53,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 17:14:53,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 17:14:53,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:14:48" (1/3) ... [2023-08-30 17:14:53,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c327c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:14:53, skipping insertion in model container [2023-08-30 17:14:53,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:14:52" (2/3) ... [2023-08-30 17:14:53,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c327c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:14:53, skipping insertion in model container [2023-08-30 17:14:53,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:14:53" (3/3) ... [2023-08-30 17:14:53,487 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-08-30 17:14:53,492 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 17:14:53,497 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 17:14:53,497 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 17:14:53,498 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 17:14:53,597 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 17:14:53,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 741 places, 788 transitions, 1592 flow [2023-08-30 17:14:53,898 INFO L130 PetriNetUnfolder]: 54/786 cut-off events. [2023-08-30 17:14:53,898 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 17:14:53,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 786 events. 54/786 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1067 event pairs, 0 based on Foata normal form. 0/728 useless extension candidates. Maximal degree in co-relation 629. Up to 9 conditions per place. [2023-08-30 17:14:53,904 INFO L82 GeneralOperation]: Start removeDead. Operand has 741 places, 788 transitions, 1592 flow [2023-08-30 17:14:53,911 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 731 places, 778 transitions, 1565 flow [2023-08-30 17:14:53,913 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 17:14:53,919 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 731 places, 778 transitions, 1565 flow [2023-08-30 17:14:53,921 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 731 places, 778 transitions, 1565 flow [2023-08-30 17:14:53,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 731 places, 778 transitions, 1565 flow [2023-08-30 17:14:54,012 INFO L130 PetriNetUnfolder]: 54/778 cut-off events. [2023-08-30 17:14:54,012 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 17:14:54,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 778 events. 54/778 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1007 event pairs, 0 based on Foata normal form. 0/720 useless extension candidates. Maximal degree in co-relation 629. Up to 9 conditions per place. [2023-08-30 17:14:54,019 INFO L119 LiptonReduction]: Number of co-enabled transitions 12132 [2023-08-30 17:16:18,143 WARN L222 SmtUtils]: Spent 26.89s on a formula simplification that was a NOOP. DAG size: 511 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:16:46,332 WARN L222 SmtUtils]: Spent 28.19s on a formula simplification that was a NOOP. DAG size: 511 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:17:08,808 WARN L222 SmtUtils]: Spent 22.47s on a formula simplification that was a NOOP. DAG size: 511 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:17:27,921 WARN L222 SmtUtils]: Spent 19.11s on a formula simplification that was a NOOP. DAG size: 511 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:18:50,201 WARN L222 SmtUtils]: Spent 1.31m on a formula simplification. DAG size of input: 601 DAG size of output: 599 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:19:33,471 WARN L222 SmtUtils]: Spent 43.26s 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 17:21:49,577 WARN L222 SmtUtils]: Spent 2.27m on a formula simplification. DAG size of input: 604 DAG size of output: 602 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:22:24,358 WARN L222 SmtUtils]: Spent 34.78s on a formula simplification that was a NOOP. DAG size: 584 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:22:35,100 INFO L134 LiptonReduction]: Checked pairs total: 10811 [2023-08-30 17:22:35,101 INFO L136 LiptonReduction]: Total number of compositions: 873 [2023-08-30 17:22:35,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 17:22:35,112 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;@59e68e9b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 17:22:35,113 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-30 17:22:35,118 INFO L130 PetriNetUnfolder]: 6/11 cut-off events. [2023-08-30 17:22:35,119 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:22:35,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:22:35,119 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 17:22:35,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 17:22:35,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:22:35,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2899248, now seen corresponding path program 1 times [2023-08-30 17:22:35,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:22:35,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663973661] [2023-08-30 17:22:35,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:22:35,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:22:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:22:35,524 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 17:22:35,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:22:35,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663973661] [2023-08-30 17:22:35,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663973661] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:22:35,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:22:35,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 17:22:35,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191612700] [2023-08-30 17:22:35,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:22:35,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 17:22:35,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:22:35,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 17:22:35,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 17:22:35,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 1661 [2023-08-30 17:22:35,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 49 transitions, 107 flow. Second operand has 2 states, 2 states have (on average 751.5) internal successors, (1503), 2 states have internal predecessors, (1503), 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 17:22:35,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:22:35,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 1661 [2023-08-30 17:22:35,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:22:35,737 INFO L130 PetriNetUnfolder]: 79/159 cut-off events. [2023-08-30 17:22:35,737 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-30 17:22:35,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 159 events. 79/159 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 450 event pairs, 69 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 236. Up to 160 conditions per place. [2023-08-30 17:22:35,740 INFO L137 encePairwiseOnDemand]: 1648/1661 looper letters, 36 selfloop transitions, 0 changer transitions 0/36 dead transitions. [2023-08-30 17:22:35,740 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 153 flow [2023-08-30 17:22:35,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 17:22:35,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 17:22:35,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1549 transitions. [2023-08-30 17:22:35,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46628537025888017 [2023-08-30 17:22:35,760 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1549 transitions. [2023-08-30 17:22:35,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1549 transitions. [2023-08-30 17:22:35,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:22:35,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1549 transitions. [2023-08-30 17:22:35,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 774.5) internal successors, (1549), 2 states have internal predecessors, (1549), 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 17:22:35,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1661.0) internal successors, (4983), 3 states have internal predecessors, (4983), 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 17:22:35,784 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1661.0) internal successors, (4983), 3 states have internal predecessors, (4983), 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 17:22:35,785 INFO L175 Difference]: Start difference. First operand has 35 places, 49 transitions, 107 flow. Second operand 2 states and 1549 transitions. [2023-08-30 17:22:35,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 153 flow [2023-08-30 17:22:35,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 36 transitions, 148 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 17:22:35,789 INFO L231 Difference]: Finished difference. Result has 31 places, 36 transitions, 76 flow [2023-08-30 17:22:35,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=76, PETRI_PLACES=31, PETRI_TRANSITIONS=36} [2023-08-30 17:22:35,792 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -4 predicate places. [2023-08-30 17:22:35,792 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 36 transitions, 76 flow [2023-08-30 17:22:35,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 751.5) internal successors, (1503), 2 states have internal predecessors, (1503), 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 17:22:35,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:22:35,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 17:22:35,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 17:22:35,794 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 17:22:35,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:22:35,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1507659460, now seen corresponding path program 1 times [2023-08-30 17:22:35,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:22:35,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999520473] [2023-08-30 17:22:35,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:22:35,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:22:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:22:36,354 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 17:22:36,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:22:36,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999520473] [2023-08-30 17:22:36,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999520473] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:22:36,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:22:36,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 17:22:36,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008911360] [2023-08-30 17:22:36,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:22:36,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:22:36,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:22:36,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:22:36,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 17:22:36,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 742 out of 1661 [2023-08-30 17:22:36,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 36 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 743.6666666666666) internal successors, (2231), 3 states have internal predecessors, (2231), 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 17:22:36,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:22:36,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 742 of 1661 [2023-08-30 17:22:36,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:22:36,592 INFO L130 PetriNetUnfolder]: 79/160 cut-off events. [2023-08-30 17:22:36,592 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 17:22:36,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 160 events. 79/160 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 450 event pairs, 69 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 329. Up to 160 conditions per place. [2023-08-30 17:22:36,594 INFO L137 encePairwiseOnDemand]: 1657/1661 looper letters, 35 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-08-30 17:22:36,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 37 transitions, 152 flow [2023-08-30 17:22:36,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:22:36,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:22:36,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2265 transitions. [2023-08-30 17:22:36,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2023-08-30 17:22:36,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2265 transitions. [2023-08-30 17:22:36,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2265 transitions. [2023-08-30 17:22:36,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:22:36,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2265 transitions. [2023-08-30 17:22:36,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 755.0) internal successors, (2265), 3 states have internal predecessors, (2265), 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 17:22:36,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 17:22:36,612 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 17:22:36,612 INFO L175 Difference]: Start difference. First operand has 31 places, 36 transitions, 76 flow. Second operand 3 states and 2265 transitions. [2023-08-30 17:22:36,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 37 transitions, 152 flow [2023-08-30 17:22:36,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 17:22:36,613 INFO L231 Difference]: Finished difference. Result has 34 places, 37 transitions, 90 flow [2023-08-30 17:22:36,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=34, PETRI_TRANSITIONS=37} [2023-08-30 17:22:36,614 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-08-30 17:22:36,614 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 37 transitions, 90 flow [2023-08-30 17:22:36,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 743.6666666666666) internal successors, (2231), 3 states have internal predecessors, (2231), 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 17:22:36,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:22:36,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 17:22:36,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 17:22:36,618 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 17:22:36,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:22:36,619 INFO L85 PathProgramCache]: Analyzing trace with hash 406583551, now seen corresponding path program 1 times [2023-08-30 17:22:36,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:22:36,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087664877] [2023-08-30 17:22:36,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:22:36,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:22:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:22:37,294 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 17:22:37,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:22:37,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087664877] [2023-08-30 17:22:37,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087664877] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:22:37,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731660503] [2023-08-30 17:22:37,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:22:37,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:22:37,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:22:37,297 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 17:22:37,303 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 17:22:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:22:37,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-30 17:22:37,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:22:37,703 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 17:22:37,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 17:22:37,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731660503] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:22:37,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 17:22:37,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-30 17:22:37,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841138229] [2023-08-30 17:22:37,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:22:37,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:22:37,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:22:37,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:22:37,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 17:22:37,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 732 out of 1661 [2023-08-30 17:22:37,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 37 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 734.0) internal successors, (2202), 3 states have internal predecessors, (2202), 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 17:22:37,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:22:37,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 732 of 1661 [2023-08-30 17:22:37,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:22:38,229 INFO L130 PetriNetUnfolder]: 109/227 cut-off events. [2023-08-30 17:22:38,229 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 17:22:38,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 227 events. 109/227 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 836 event pairs, 34 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 473. Up to 156 conditions per place. [2023-08-30 17:22:38,231 INFO L137 encePairwiseOnDemand]: 1656/1661 looper letters, 44 selfloop transitions, 4 changer transitions 0/48 dead transitions. [2023-08-30 17:22:38,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 48 transitions, 211 flow [2023-08-30 17:22:38,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:22:38,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:22:38,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2244 transitions. [2023-08-30 17:22:38,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4503311258278146 [2023-08-30 17:22:38,236 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2244 transitions. [2023-08-30 17:22:38,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2244 transitions. [2023-08-30 17:22:38,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:22:38,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2244 transitions. [2023-08-30 17:22:38,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 748.0) internal successors, (2244), 3 states have internal predecessors, (2244), 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 17:22:38,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 17:22:38,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 17:22:38,251 INFO L175 Difference]: Start difference. First operand has 34 places, 37 transitions, 90 flow. Second operand 3 states and 2244 transitions. [2023-08-30 17:22:38,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 48 transitions, 211 flow [2023-08-30 17:22:38,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 48 transitions, 207 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 17:22:38,253 INFO L231 Difference]: Finished difference. Result has 36 places, 40 transitions, 112 flow [2023-08-30 17:22:38,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=36, PETRI_TRANSITIONS=40} [2023-08-30 17:22:38,254 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-08-30 17:22:38,254 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 40 transitions, 112 flow [2023-08-30 17:22:38,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 734.0) internal successors, (2202), 3 states have internal predecessors, (2202), 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 17:22:38,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:22:38,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:22:38,266 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 17:22:38,463 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 17:22:38,463 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 17:22:38,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:22:38,464 INFO L85 PathProgramCache]: Analyzing trace with hash -280812396, now seen corresponding path program 1 times [2023-08-30 17:22:38,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:22:38,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732953982] [2023-08-30 17:22:38,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:22:38,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:22:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:22:38,867 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 17:22:38,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:22:38,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732953982] [2023-08-30 17:22:38,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732953982] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:22:38,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308799820] [2023-08-30 17:22:38,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:22:38,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:22:38,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:22:38,869 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 17:22:38,871 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 17:22:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:22:39,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 284 conjunts are in the unsatisfiable core [2023-08-30 17:22:39,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:22:39,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:39,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:22:40,006 INFO L217 Elim1Store]: Index analysis took 132 ms [2023-08-30 17:22:45,889 WARN L222 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 1211 DAG size of output: 275 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-08-30 17:22:45,896 INFO L321 Elim1Store]: treesize reduction 8656, result has 6.5 percent of original size [2023-08-30 17:22:45,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 18 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 70 case distinctions, treesize of input 710 treesize of output 1213 [2023-08-30 17:22:50,183 INFO L321 Elim1Store]: treesize reduction 83, result has 27.2 percent of original size [2023-08-30 17:22:50,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 393 treesize of output 400 [2023-08-30 17:22:50,272 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-08-30 17:22:50,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 346 [2023-08-30 17:22:50,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 335 [2023-08-30 17:22:50,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 329 [2023-08-30 17:22:50,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 323 [2023-08-30 17:22:50,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2023-08-30 17:22:50,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 17:22:50,540 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 17:22:50,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 17:22:50,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308799820] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:22:50,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 17:22:50,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2023-08-30 17:22:50,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745193106] [2023-08-30 17:22:50,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:22:50,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 17:22:50,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:22:50,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 17:22:50,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-30 17:22:50,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 718 out of 1661 [2023-08-30 17:22:50,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 40 transitions, 112 flow. Second operand has 6 states, 6 states have (on average 719.1666666666666) internal successors, (4315), 6 states have internal predecessors, (4315), 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 17:22:50,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:22:50,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 718 of 1661 [2023-08-30 17:22:50,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:22:51,393 INFO L130 PetriNetUnfolder]: 192/407 cut-off events. [2023-08-30 17:22:51,393 INFO L131 PetriNetUnfolder]: For 100/100 co-relation queries the response was YES. [2023-08-30 17:22:51,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 987 conditions, 407 events. 192/407 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1810 event pairs, 115 based on Foata normal form. 9/376 useless extension candidates. Maximal degree in co-relation 981. Up to 217 conditions per place. [2023-08-30 17:22:51,395 INFO L137 encePairwiseOnDemand]: 1651/1661 looper letters, 55 selfloop transitions, 11 changer transitions 1/67 dead transitions. [2023-08-30 17:22:51,395 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 67 transitions, 331 flow [2023-08-30 17:22:51,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 17:22:51,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 17:22:51,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3652 transitions. [2023-08-30 17:22:51,401 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43973509933774835 [2023-08-30 17:22:51,401 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3652 transitions. [2023-08-30 17:22:51,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3652 transitions. [2023-08-30 17:22:51,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:22:51,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3652 transitions. [2023-08-30 17:22:51,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 730.4) internal successors, (3652), 5 states have internal predecessors, (3652), 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 17:22:51,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1661.0) internal successors, (9966), 6 states have internal predecessors, (9966), 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 17:22:51,418 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1661.0) internal successors, (9966), 6 states have internal predecessors, (9966), 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 17:22:51,418 INFO L175 Difference]: Start difference. First operand has 36 places, 40 transitions, 112 flow. Second operand 5 states and 3652 transitions. [2023-08-30 17:22:51,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 67 transitions, 331 flow [2023-08-30 17:22:51,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 67 transitions, 323 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 17:22:51,420 INFO L231 Difference]: Finished difference. Result has 41 places, 45 transitions, 176 flow [2023-08-30 17:22:51,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=41, PETRI_TRANSITIONS=45} [2023-08-30 17:22:51,421 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2023-08-30 17:22:51,421 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 45 transitions, 176 flow [2023-08-30 17:22:51,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 719.1666666666666) internal successors, (4315), 6 states have internal predecessors, (4315), 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 17:22:51,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:22:51,423 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:22:51,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-30 17:22:51,630 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 17:22:51,630 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 17:22:51,631 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:22:51,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1253748659, now seen corresponding path program 1 times [2023-08-30 17:22:51,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:22:51,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81635292] [2023-08-30 17:22:51,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:22:51,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:22:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:22:51,834 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 17:22:51,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:22:51,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81635292] [2023-08-30 17:22:51,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81635292] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:22:51,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:22:51,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 17:22:51,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003220239] [2023-08-30 17:22:51,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:22:51,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:22:51,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:22:51,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:22:51,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 17:22:51,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 746 out of 1661 [2023-08-30 17:22:51,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 45 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 749.3333333333334) internal successors, (2248), 3 states have internal predecessors, (2248), 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 17:22:51,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:22:51,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 746 of 1661 [2023-08-30 17:22:51,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:22:52,072 INFO L130 PetriNetUnfolder]: 191/405 cut-off events. [2023-08-30 17:22:52,072 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-08-30 17:22:52,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 405 events. 191/405 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1701 event pairs, 155 based on Foata normal form. 0/368 useless extension candidates. Maximal degree in co-relation 1098. Up to 405 conditions per place. [2023-08-30 17:22:52,074 INFO L137 encePairwiseOnDemand]: 1659/1661 looper letters, 42 selfloop transitions, 1 changer transitions 0/43 dead transitions. [2023-08-30 17:22:52,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 258 flow [2023-08-30 17:22:52,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:22:52,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:22:52,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2273 transitions. [2023-08-30 17:22:52,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45615091310455547 [2023-08-30 17:22:52,078 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2273 transitions. [2023-08-30 17:22:52,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2273 transitions. [2023-08-30 17:22:52,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:22:52,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2273 transitions. [2023-08-30 17:22:52,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 757.6666666666666) internal successors, (2273), 3 states have internal predecessors, (2273), 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 17:22:52,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 17:22:52,088 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 17:22:52,088 INFO L175 Difference]: Start difference. First operand has 41 places, 45 transitions, 176 flow. Second operand 3 states and 2273 transitions. [2023-08-30 17:22:52,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 258 flow [2023-08-30 17:22:52,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 43 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 17:22:52,095 INFO L231 Difference]: Finished difference. Result has 40 places, 43 transitions, 166 flow [2023-08-30 17:22:52,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=40, PETRI_TRANSITIONS=43} [2023-08-30 17:22:52,096 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2023-08-30 17:22:52,096 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 43 transitions, 166 flow [2023-08-30 17:22:52,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 749.3333333333334) internal successors, (2248), 3 states have internal predecessors, (2248), 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 17:22:52,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:22:52,097 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:22:52,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 17:22:52,097 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 17:22:52,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:22:52,098 INFO L85 PathProgramCache]: Analyzing trace with hash 194489575, now seen corresponding path program 1 times [2023-08-30 17:22:52,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:22:52,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711255813] [2023-08-30 17:22:52,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:22:52,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:22:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:22:52,618 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 17:22:52,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:22:52,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711255813] [2023-08-30 17:22:52,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711255813] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:22:52,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392757062] [2023-08-30 17:22:52,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:22:52,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:22:52,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:22:52,622 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 17:22:52,623 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 17:22:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:22:53,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-30 17:22:53,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:22:53,533 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 17:22:53,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 17:22:53,657 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 17:22:53,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392757062] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 17:22:53,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 17:22:53,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-30 17:22:53,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287473677] [2023-08-30 17:22:53,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 17:22:53,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 17:22:53,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:22:53,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 17:22:53,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-08-30 17:22:53,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 736 out of 1661 [2023-08-30 17:22:53,759 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 43 transitions, 166 flow. Second operand has 8 states, 8 states have (on average 738.0) internal successors, (5904), 8 states have internal predecessors, (5904), 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 17:22:53,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:22:53,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 736 of 1661 [2023-08-30 17:22:53,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:22:54,234 INFO L130 PetriNetUnfolder]: 191/410 cut-off events. [2023-08-30 17:22:54,234 INFO L131 PetriNetUnfolder]: For 205/205 co-relation queries the response was YES. [2023-08-30 17:22:54,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1118 conditions, 410 events. 191/410 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1614 event pairs, 155 based on Foata normal form. 3/375 useless extension candidates. Maximal degree in co-relation 1110. Up to 400 conditions per place. [2023-08-30 17:22:54,236 INFO L137 encePairwiseOnDemand]: 1654/1661 looper letters, 37 selfloop transitions, 11 changer transitions 0/48 dead transitions. [2023-08-30 17:22:54,236 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 48 transitions, 278 flow [2023-08-30 17:22:54,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 17:22:54,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 17:22:54,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 5200 transitions. [2023-08-30 17:22:54,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.447234884320977 [2023-08-30 17:22:54,245 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 5200 transitions. [2023-08-30 17:22:54,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 5200 transitions. [2023-08-30 17:22:54,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:22:54,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 5200 transitions. [2023-08-30 17:22:54,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 742.8571428571429) internal successors, (5200), 7 states have internal predecessors, (5200), 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 17:22:54,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1661.0) internal successors, (13288), 8 states have internal predecessors, (13288), 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 17:22:54,264 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1661.0) internal successors, (13288), 8 states have internal predecessors, (13288), 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 17:22:54,264 INFO L175 Difference]: Start difference. First operand has 40 places, 43 transitions, 166 flow. Second operand 7 states and 5200 transitions. [2023-08-30 17:22:54,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 48 transitions, 278 flow [2023-08-30 17:22:54,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 48 transitions, 277 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 17:22:54,273 INFO L231 Difference]: Finished difference. Result has 45 places, 48 transitions, 207 flow [2023-08-30 17:22:54,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=207, PETRI_PLACES=45, PETRI_TRANSITIONS=48} [2023-08-30 17:22:54,276 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2023-08-30 17:22:54,276 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 207 flow [2023-08-30 17:22:54,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 738.0) internal successors, (5904), 8 states have internal predecessors, (5904), 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 17:22:54,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:22:54,278 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:22:54,292 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 17:22:54,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:22:54,486 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 17:22:54,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:22:54,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1968621724, now seen corresponding path program 2 times [2023-08-30 17:22:54,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:22:54,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467988903] [2023-08-30 17:22:54,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:22:54,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:22:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:22:55,268 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 17:22:55,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:22:55,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467988903] [2023-08-30 17:22:55,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467988903] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:22:55,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536685649] [2023-08-30 17:22:55,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 17:22:55,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:22:55,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:22:55,273 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 17:22:55,275 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 17:22:56,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 17:22:56,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 17:22:56,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 22 conjunts are in the unsatisfiable core [2023-08-30 17:22:56,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:22:56,400 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 17:22:56,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 17:22:56,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536685649] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:22:56,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 17:22:56,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2023-08-30 17:22:56,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009548613] [2023-08-30 17:22:56,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:22:56,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:22:56,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:22:56,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:22:56,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-30 17:22:56,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 746 out of 1661 [2023-08-30 17:22:56,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 749.3333333333334) internal successors, (2248), 3 states have internal predecessors, (2248), 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 17:22:56,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:22:56,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 746 of 1661 [2023-08-30 17:22:56,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:22:57,099 INFO L130 PetriNetUnfolder]: 157/344 cut-off events. [2023-08-30 17:22:57,099 INFO L131 PetriNetUnfolder]: For 176/176 co-relation queries the response was YES. [2023-08-30 17:22:57,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 344 events. 157/344 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1293 event pairs, 49 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 901. Up to 192 conditions per place. [2023-08-30 17:22:57,100 INFO L137 encePairwiseOnDemand]: 1657/1661 looper letters, 42 selfloop transitions, 3 changer transitions 6/51 dead transitions. [2023-08-30 17:22:57,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 51 transitions, 310 flow [2023-08-30 17:22:57,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:22:57,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:22:57,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2278 transitions. [2023-08-30 17:22:57,104 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4571543247039936 [2023-08-30 17:22:57,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2278 transitions. [2023-08-30 17:22:57,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2278 transitions. [2023-08-30 17:22:57,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:22:57,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2278 transitions. [2023-08-30 17:22:57,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 759.3333333333334) internal successors, (2278), 3 states have internal predecessors, (2278), 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 17:22:57,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 17:22:57,113 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 17:22:57,113 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 207 flow. Second operand 3 states and 2278 transitions. [2023-08-30 17:22:57,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 51 transitions, 310 flow [2023-08-30 17:22:57,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 288 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-30 17:22:57,115 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 156 flow [2023-08-30 17:22:57,116 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2023-08-30 17:22:57,116 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2023-08-30 17:22:57,116 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 156 flow [2023-08-30 17:22:57,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 749.3333333333334) internal successors, (2248), 3 states have internal predecessors, (2248), 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 17:22:57,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:22:57,117 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:22:57,128 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 17:22:57,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:22:57,325 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 17:22:57,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:22:57,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1705656848, now seen corresponding path program 1 times [2023-08-30 17:22:57,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:22:57,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083561356] [2023-08-30 17:22:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:22:57,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:22:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:22:58,281 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 17:22:58,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:22:58,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083561356] [2023-08-30 17:22:58,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083561356] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:22:58,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510985310] [2023-08-30 17:22:58,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:22:58,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:22:58,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:22:58,283 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 17:22:58,285 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 17:22:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:22:59,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 17:22:59,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:22:59,257 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 17:22:59,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 17:22:59,469 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 17:22:59,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510985310] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 17:22:59,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 17:22:59,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-30 17:22:59,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148255068] [2023-08-30 17:22:59,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 17:22:59,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 17:22:59,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:22:59,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 17:22:59,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-08-30 17:22:59,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 736 out of 1661 [2023-08-30 17:22:59,897 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 156 flow. Second operand has 17 states, 17 states have (on average 737.5882352941177) internal successors, (12539), 17 states have internal predecessors, (12539), 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 17:22:59,897 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:22:59,897 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 736 of 1661 [2023-08-30 17:22:59,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:23:02,430 INFO L130 PetriNetUnfolder]: 67/177 cut-off events. [2023-08-30 17:23:02,430 INFO L131 PetriNetUnfolder]: For 146/146 co-relation queries the response was YES. [2023-08-30 17:23:02,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 177 events. 67/177 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 463 event pairs, 53 based on Foata normal form. 6/175 useless extension candidates. Maximal degree in co-relation 556. Up to 163 conditions per place. [2023-08-30 17:23:02,431 INFO L137 encePairwiseOnDemand]: 1654/1661 looper letters, 33 selfloop transitions, 17 changer transitions 0/50 dead transitions. [2023-08-30 17:23:02,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 50 transitions, 292 flow [2023-08-30 17:23:02,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 17:23:02,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 17:23:02,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8892 transitions. [2023-08-30 17:23:02,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461167971101746 [2023-08-30 17:23:02,457 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 8892 transitions. [2023-08-30 17:23:02,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 8892 transitions. [2023-08-30 17:23:02,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:23:02,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 8892 transitions. [2023-08-30 17:23:02,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 741.0) internal successors, (8892), 12 states have internal predecessors, (8892), 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 17:23:02,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1661.0) internal successors, (21593), 13 states have internal predecessors, (21593), 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 17:23:02,485 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1661.0) internal successors, (21593), 13 states have internal predecessors, (21593), 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 17:23:02,485 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 156 flow. Second operand 12 states and 8892 transitions. [2023-08-30 17:23:02,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 50 transitions, 292 flow [2023-08-30 17:23:02,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 50 transitions, 286 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 17:23:02,487 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 276 flow [2023-08-30 17:23:02,487 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=276, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2023-08-30 17:23:02,489 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 20 predicate places. [2023-08-30 17:23:02,489 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 276 flow [2023-08-30 17:23:02,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 737.5882352941177) internal successors, (12539), 17 states have internal predecessors, (12539), 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 17:23:02,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:23:02,491 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:23:02,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-30 17:23:02,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:23:02,701 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 17:23:02,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:23:02,701 INFO L85 PathProgramCache]: Analyzing trace with hash 580811568, now seen corresponding path program 2 times [2023-08-30 17:23:02,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:23:02,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761690988] [2023-08-30 17:23:02,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:23:02,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:23:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:23:03,743 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 17:23:03,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:23:03,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761690988] [2023-08-30 17:23:03,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761690988] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:23:03,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840347976] [2023-08-30 17:23:03,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 17:23:03,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:23:03,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:23:03,745 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 17:23:03,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-30 17:23:05,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 17:23:05,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 17:23:05,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 27 conjunts are in the unsatisfiable core [2023-08-30 17:23:05,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:23:05,981 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 17:23:05,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 17:23:06,465 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 17:23:06,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840347976] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 17:23:06,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 17:23:06,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-08-30 17:23:06,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393981837] [2023-08-30 17:23:06,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 17:23:06,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-30 17:23:06,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:23:06,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-30 17:23:06,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=871, Unknown=0, NotChecked=0, Total=1190 [2023-08-30 17:23:08,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 736 out of 1661 [2023-08-30 17:23:08,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 276 flow. Second operand has 35 states, 35 states have (on average 737.2857142857143) internal successors, (25805), 35 states have internal predecessors, (25805), 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 17:23:08,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:23:08,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 736 of 1661 [2023-08-30 17:23:08,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:23:24,926 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| 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| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false [2023-08-30 17:23:36,293 INFO L130 PetriNetUnfolder]: 68/190 cut-off events. [2023-08-30 17:23:36,294 INFO L131 PetriNetUnfolder]: For 587/587 co-relation queries the response was YES. [2023-08-30 17:23:36,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 190 events. 68/190 cut-off events. For 587/587 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 522 event pairs, 53 based on Foata normal form. 23/208 useless extension candidates. Maximal degree in co-relation 615. Up to 167 conditions per place. [2023-08-30 17:23:36,295 INFO L137 encePairwiseOnDemand]: 1655/1661 looper letters, 36 selfloop transitions, 27 changer transitions 0/63 dead transitions. [2023-08-30 17:23:36,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 63 transitions, 489 flow [2023-08-30 17:23:36,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-30 17:23:36,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-30 17:23:36,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 17742 transitions. [2023-08-30 17:23:36,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4450632149307646 [2023-08-30 17:23:36,315 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 17742 transitions. [2023-08-30 17:23:36,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 17742 transitions. [2023-08-30 17:23:36,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:23:36,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 17742 transitions. [2023-08-30 17:23:36,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 739.25) internal successors, (17742), 24 states have internal predecessors, (17742), 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 17:23:36,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 1661.0) internal successors, (41525), 25 states have internal predecessors, (41525), 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 17:23:36,402 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 1661.0) internal successors, (41525), 25 states have internal predecessors, (41525), 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 17:23:36,403 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 276 flow. Second operand 24 states and 17742 transitions. [2023-08-30 17:23:36,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 63 transitions, 489 flow [2023-08-30 17:23:36,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 63 transitions, 465 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-08-30 17:23:36,406 INFO L231 Difference]: Finished difference. Result has 88 places, 63 transitions, 472 flow [2023-08-30 17:23:36,406 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=472, PETRI_PLACES=88, PETRI_TRANSITIONS=63} [2023-08-30 17:23:36,407 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 53 predicate places. [2023-08-30 17:23:36,407 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 63 transitions, 472 flow [2023-08-30 17:23:36,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 737.2857142857143) internal successors, (25805), 35 states have internal predecessors, (25805), 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 17:23:36,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:23:36,410 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:23:36,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-30 17:23:36,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:23:36,617 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 17:23:36,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:23:36,618 INFO L85 PathProgramCache]: Analyzing trace with hash -38732603, now seen corresponding path program 1 times [2023-08-30 17:23:36,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:23:36,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913974412] [2023-08-30 17:23:36,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:23:36,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:23:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:23:37,753 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:23:37,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:23:37,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913974412] [2023-08-30 17:23:37,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913974412] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:23:37,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463699785] [2023-08-30 17:23:37,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:23:37,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:23:37,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:23:37,757 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 17:23:37,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-30 17:23:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:23:41,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 1485 conjuncts, 31 conjunts are in the unsatisfiable core [2023-08-30 17:23:41,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:23:41,931 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:23:41,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 17:23:42,403 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:23:42,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463699785] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 17:23:42,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 17:23:42,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 39 [2023-08-30 17:23:42,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110095413] [2023-08-30 17:23:42,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 17:23:42,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-08-30 17:23:42,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:23:42,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-08-30 17:23:42,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2023-08-30 17:23:44,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 738 out of 1661 [2023-08-30 17:23:44,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 63 transitions, 472 flow. Second operand has 40 states, 40 states have (on average 739.3) internal successors, (29572), 40 states have internal predecessors, (29572), 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 17:23:44,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:23:44,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 738 of 1661 [2023-08-30 17:23:44,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:24:00,545 WARN L222 SmtUtils]: Spent 8.43s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 17:24:14,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 17:24:39,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-30 17:24:40,126 INFO L130 PetriNetUnfolder]: 67/201 cut-off events. [2023-08-30 17:24:40,127 INFO L131 PetriNetUnfolder]: For 1762/1762 co-relation queries the response was YES. [2023-08-30 17:24:40,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 201 events. 67/201 cut-off events. For 1762/1762 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 450 event pairs, 53 based on Foata normal form. 17/213 useless extension candidates. Maximal degree in co-relation 712. Up to 163 conditions per place. [2023-08-30 17:24:40,128 INFO L137 encePairwiseOnDemand]: 1654/1661 looper letters, 33 selfloop transitions, 41 changer transitions 0/74 dead transitions. [2023-08-30 17:24:40,128 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 74 transitions, 682 flow [2023-08-30 17:24:40,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-08-30 17:24:40,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-08-30 17:24:40,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 20750 transitions. [2023-08-30 17:24:40,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461598004644362 [2023-08-30 17:24:40,149 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 20750 transitions. [2023-08-30 17:24:40,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 20750 transitions. [2023-08-30 17:24:40,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:24:40,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 20750 transitions. [2023-08-30 17:24:40,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 741.0714285714286) internal successors, (20750), 28 states have internal predecessors, (20750), 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 17:24:40,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 1661.0) internal successors, (48169), 29 states have internal predecessors, (48169), 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 17:24:40,233 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 1661.0) internal successors, (48169), 29 states have internal predecessors, (48169), 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 17:24:40,234 INFO L175 Difference]: Start difference. First operand has 88 places, 63 transitions, 472 flow. Second operand 28 states and 20750 transitions. [2023-08-30 17:24:40,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 74 transitions, 682 flow [2023-08-30 17:24:40,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 74 transitions, 598 flow, removed 37 selfloop flow, removed 5 redundant places. [2023-08-30 17:24:40,238 INFO L231 Difference]: Finished difference. Result has 118 places, 74 transitions, 600 flow [2023-08-30 17:24:40,239 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=600, PETRI_PLACES=118, PETRI_TRANSITIONS=74} [2023-08-30 17:24:40,239 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 83 predicate places. [2023-08-30 17:24:40,239 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 74 transitions, 600 flow [2023-08-30 17:24:40,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 739.3) internal successors, (29572), 40 states have internal predecessors, (29572), 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 17:24:40,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:24:40,242 INFO L208 CegarLoopForPetriNet]: trace histogram [26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:24:40,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-30 17:24:40,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:24:40,443 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 17:24:40,444 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:24:40,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1087398352, now seen corresponding path program 3 times [2023-08-30 17:24:40,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:24:40,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677056470] [2023-08-30 17:24:40,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:24:40,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:24:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:24:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:24:42,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:24:42,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677056470] [2023-08-30 17:24:42,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677056470] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:24:42,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502857773] [2023-08-30 17:24:42,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 17:24:42,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:24:42,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:24:42,128 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 17:24:42,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process Killed by 15