/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:18:08,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:18:08,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:18:08,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:18:08,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:18:08,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:18:08,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:18:08,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:18:08,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:18:08,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:18:08,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:18:08,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:18:08,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:18:08,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:18:08,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:18:08,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:18:08,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:18:08,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:18:08,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:18:08,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:18:08,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:18:08,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:18:08,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:18:08,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:18:08,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:18:08,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:18:08,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:18:08,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:18:08,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:18:08,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:18:08,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:18:08,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:18:08,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:18:08,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:18:08,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:18:08,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:18:08,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:18:08,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:18:08,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:18:08,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:18:08,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:18:08,530 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 07:18:08,550 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:18:08,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:18:08,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:18:08,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:18:08,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:18:08,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:18:08,552 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:18:08,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:18:08,552 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:18:08,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:18:08,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:18:08,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:18:08,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:18:08,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:18:08,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:18:08,553 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:18:08,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:18:08,554 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:18:08,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:18:08,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:18:08,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:18:08,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:18:08,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:18:08,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:18:08,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:18:08,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:18:08,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:18:08,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:18:08,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:18:08,555 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:18:08,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:18:08,555 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:18:08,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:18:08,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:18:08,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:18:08,756 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:18:08,757 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:18:08,757 INFO L432 ainManager$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 [2023-01-28 07:18:09,701 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:18:10,105 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:18:10,105 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-01-28 07:18:10,136 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58ec77ad5/6bcc6b7cb46b40f4be459273a383e0d1/FLAG53f5a6ae8 [2023-01-28 07:18:10,148 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58ec77ad5/6bcc6b7cb46b40f4be459273a383e0d1 [2023-01-28 07:18:10,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:18:10,150 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:18:10,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:18:10,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:18:10,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:18:10,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:18:10" (1/1) ... [2023-01-28 07:18:10,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2659017a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:18:10, skipping insertion in model container [2023-01-28 07:18:10,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:18:10" (1/1) ... [2023-01-28 07:18:10,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:18:10,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:18:10,491 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] [2023-01-28 07:18:12,887 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 07:18:13,358 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:18:13,359 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:18:13,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:18:13,423 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:18:13,442 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] [2023-01-28 07:18:13,558 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 07:18:13,597 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:18:13,598 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:18:13,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:18:13,964 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:18:13,965 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:18:13,965 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:18:13,965 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:18:13,965 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:18:13,965 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:18:13,965 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:18:13,969 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:18:13,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:18:13 WrapperNode [2023-01-28 07:18:13,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:18:13,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:18:13,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:18:13,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:18:13,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:18:13" (1/1) ... [2023-01-28 07:18:14,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:18:13" (1/1) ... [2023-01-28 07:18:14,104 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 54, statements flattened = 722 [2023-01-28 07:18:14,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:18:14,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:18:14,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:18:14,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:18:14,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:18:13" (1/1) ... [2023-01-28 07:18:14,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:18:13" (1/1) ... [2023-01-28 07:18:14,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:18:13" (1/1) ... [2023-01-28 07:18:14,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:18:13" (1/1) ... [2023-01-28 07:18:14,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:18:13" (1/1) ... [2023-01-28 07:18:14,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:18:13" (1/1) ... [2023-01-28 07:18:14,169 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:18:13" (1/1) ... [2023-01-28 07:18:14,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:18:13" (1/1) ... [2023-01-28 07:18:14,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:18:14,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:18:14,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:18:14,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:18:14,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:18:13" (1/1) ... [2023-01-28 07:18:14,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:18:14,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:18:14,230 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) [2023-01-28 07:18:14,260 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 [2023-01-28 07:18:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:18:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 07:18:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:18:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-28 07:18:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-01-28 07:18:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-01-28 07:18:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-01-28 07:18:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-01-28 07:18:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:18:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:18:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-28 07:18:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:18:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-28 07:18:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:18:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:18:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-28 07:18:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:18:14,268 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 07:18:14,584 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:18:14,585 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:18:15,153 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:18:15,160 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:18:15,160 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-01-28 07:18:15,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:18:15 BoogieIcfgContainer [2023-01-28 07:18:15,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:18:15,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:18:15,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:18:15,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:18:15,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:18:10" (1/3) ... [2023-01-28 07:18:15,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c39be70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:18:15, skipping insertion in model container [2023-01-28 07:18:15,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:18:13" (2/3) ... [2023-01-28 07:18:15,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c39be70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:18:15, skipping insertion in model container [2023-01-28 07:18:15,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:18:15" (3/3) ... [2023-01-28 07:18:15,167 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-01-28 07:18:15,177 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:18:15,177 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-01-28 07:18:15,177 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:18:15,241 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 07:18:15,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 741 places, 788 transitions, 1592 flow [2023-01-28 07:18:15,413 INFO L130 PetriNetUnfolder]: 54/786 cut-off events. [2023-01-28 07:18:15,413 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:18:15,420 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. [2023-01-28 07:18:15,420 INFO L82 GeneralOperation]: Start removeDead. Operand has 741 places, 788 transitions, 1592 flow [2023-01-28 07:18:15,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 731 places, 778 transitions, 1565 flow [2023-01-28 07:18:15,429 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:18:15,435 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 731 places, 778 transitions, 1565 flow [2023-01-28 07:18:15,437 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 731 places, 778 transitions, 1565 flow [2023-01-28 07:18:15,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 731 places, 778 transitions, 1565 flow [2023-01-28 07:18:15,519 INFO L130 PetriNetUnfolder]: 54/778 cut-off events. [2023-01-28 07:18:15,519 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:18:15,521 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. [2023-01-28 07:18:15,525 INFO L119 LiptonReduction]: Number of co-enabled transitions 12132 [2023-01-28 07:19:38,362 WARN L222 SmtUtils]: Spent 27.08s 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) [2023-01-28 07:20:06,851 WARN L222 SmtUtils]: Spent 28.49s 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) [2023-01-28 07:20:29,745 WARN L222 SmtUtils]: Spent 22.89s 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) [2023-01-28 07:20:49,236 WARN L222 SmtUtils]: Spent 19.49s 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) [2023-01-28 07:22:14,117 WARN L222 SmtUtils]: Spent 1.35m 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) [2023-01-28 07:22:58,897 WARN L222 SmtUtils]: Spent 44.77s 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) [2023-01-28 07:25:18,745 WARN L222 SmtUtils]: Spent 2.33m 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) [2023-01-28 07:25:54,049 WARN L222 SmtUtils]: Spent 35.30s 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) [2023-01-28 07:26:04,817 INFO L134 LiptonReduction]: Checked pairs total: 10811 [2023-01-28 07:26:04,817 INFO L136 LiptonReduction]: Total number of compositions: 873 [2023-01-28 07:26:04,826 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:26:04,845 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=false, 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;@6674fc99, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:26:04,845 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-01-28 07:26:04,853 INFO L130 PetriNetUnfolder]: 6/12 cut-off events. [2023-01-28 07:26:04,853 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:26:04,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:26:04,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-28 07:26:04,854 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)] === [2023-01-28 07:26:04,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:26:04,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2899248, now seen corresponding path program 1 times [2023-01-28 07:26:04,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:26:04,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633006043] [2023-01-28 07:26:04,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:26:04,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:26:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:26:05,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:26:05,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:26:05,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633006043] [2023-01-28 07:26:05,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633006043] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:26:05,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:26:05,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 07:26:05,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58885523] [2023-01-28 07:26:05,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:26:05,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 07:26:05,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:26:05,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 07:26:05,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 07:26:05,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 1661 [2023-01-28 07:26:05,331 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) [2023-01-28 07:26:05,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:26:05,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 1661 [2023-01-28 07:26:05,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:26:05,517 INFO L130 PetriNetUnfolder]: 79/159 cut-off events. [2023-01-28 07:26:05,517 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-01-28 07:26:05,517 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. [2023-01-28 07:26:05,519 INFO L137 encePairwiseOnDemand]: 1648/1661 looper letters, 36 selfloop transitions, 0 changer transitions 0/36 dead transitions. [2023-01-28 07:26:05,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 153 flow [2023-01-28 07:26:05,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 07:26:05,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 07:26:05,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1549 transitions. [2023-01-28 07:26:05,535 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46628537025888017 [2023-01-28 07:26:05,536 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1549 transitions. [2023-01-28 07:26:05,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1549 transitions. [2023-01-28 07:26:05,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:26:05,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1549 transitions. [2023-01-28 07:26:05,546 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) [2023-01-28 07:26:05,553 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) [2023-01-28 07:26:05,555 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) [2023-01-28 07:26:05,557 INFO L175 Difference]: Start difference. First operand has 35 places, 49 transitions, 107 flow. Second operand 2 states and 1549 transitions. [2023-01-28 07:26:05,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 153 flow [2023-01-28 07:26:05,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 36 transitions, 148 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-28 07:26:05,563 INFO L231 Difference]: Finished difference. Result has 31 places, 36 transitions, 76 flow [2023-01-28 07:26:05,570 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} [2023-01-28 07:26:05,572 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -4 predicate places. [2023-01-28 07:26:05,572 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 36 transitions, 76 flow [2023-01-28 07:26:05,573 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) [2023-01-28 07:26:05,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:26:05,573 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-28 07:26:05,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:26:05,574 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)] === [2023-01-28 07:26:05,574 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:26:05,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1507659460, now seen corresponding path program 1 times [2023-01-28 07:26:05,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:26:05,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000306237] [2023-01-28 07:26:05,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:26:05,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:26:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:26:06,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:26:06,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:26:06,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000306237] [2023-01-28 07:26:06,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000306237] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:26:06,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:26:06,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:26:06,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565542900] [2023-01-28 07:26:06,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:26:06,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:26:06,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:26:06,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:26:06,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:26:06,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 732 out of 1661 [2023-01-28 07:26:06,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 36 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 733.6666666666666) internal successors, (2201), 3 states have internal predecessors, (2201), 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) [2023-01-28 07:26:06,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:26:06,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 732 of 1661 [2023-01-28 07:26:06,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:26:06,415 INFO L130 PetriNetUnfolder]: 79/160 cut-off events. [2023-01-28 07:26:06,415 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-01-28 07:26:06,416 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. [2023-01-28 07:26:06,416 INFO L137 encePairwiseOnDemand]: 1657/1661 looper letters, 35 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-01-28 07:26:06,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 37 transitions, 152 flow [2023-01-28 07:26:06,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:26:06,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:26:06,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2235 transitions. [2023-01-28 07:26:06,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44852498494882603 [2023-01-28 07:26:06,421 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2235 transitions. [2023-01-28 07:26:06,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2235 transitions. [2023-01-28 07:26:06,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:26:06,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2235 transitions. [2023-01-28 07:26:06,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 745.0) internal successors, (2235), 3 states have internal predecessors, (2235), 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) [2023-01-28 07:26:06,430 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) [2023-01-28 07:26:06,432 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) [2023-01-28 07:26:06,432 INFO L175 Difference]: Start difference. First operand has 31 places, 36 transitions, 76 flow. Second operand 3 states and 2235 transitions. [2023-01-28 07:26:06,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 37 transitions, 152 flow [2023-01-28 07:26:06,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 07:26:06,434 INFO L231 Difference]: Finished difference. Result has 34 places, 37 transitions, 90 flow [2023-01-28 07:26:06,434 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} [2023-01-28 07:26:06,434 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-01-28 07:26:06,434 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 37 transitions, 90 flow [2023-01-28 07:26:06,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 733.6666666666666) internal successors, (2201), 3 states have internal predecessors, (2201), 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) [2023-01-28 07:26:06,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:26:06,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 07:26:06,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:26:06,436 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)] === [2023-01-28 07:26:06,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:26:06,438 INFO L85 PathProgramCache]: Analyzing trace with hash 406583551, now seen corresponding path program 1 times [2023-01-28 07:26:06,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:26:06,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790267889] [2023-01-28 07:26:06,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:26:06,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:26:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:26:07,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:26:07,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:26:07,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790267889] [2023-01-28 07:26:07,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790267889] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:26:07,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953568832] [2023-01-28 07:26:07,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:26:07,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:26:07,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:26:07,069 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) [2023-01-28 07:26:07,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 07:26:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:26:07,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-28 07:26:07,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:26:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 07:26:07,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 07:26:07,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953568832] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:26:07,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:26:07,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-01-28 07:26:07,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827276277] [2023-01-28 07:26:07,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:26:07,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:26:07,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:26:07,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:26:07,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 07:26:07,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 697 out of 1661 [2023-01-28 07:26:07,498 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 37 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 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) [2023-01-28 07:26:07,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:26:07,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 697 of 1661 [2023-01-28 07:26:07,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:26:07,993 INFO L130 PetriNetUnfolder]: 109/227 cut-off events. [2023-01-28 07:26:07,993 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-01-28 07:26:07,993 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. [2023-01-28 07:26:07,994 INFO L137 encePairwiseOnDemand]: 1656/1661 looper letters, 44 selfloop transitions, 4 changer transitions 0/48 dead transitions. [2023-01-28 07:26:07,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 48 transitions, 211 flow [2023-01-28 07:26:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:26:07,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:26:07,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2139 transitions. [2023-01-28 07:26:07,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4292594822396147 [2023-01-28 07:26:07,998 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2139 transitions. [2023-01-28 07:26:07,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2139 transitions. [2023-01-28 07:26:07,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:26:07,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2139 transitions. [2023-01-28 07:26:08,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 713.0) internal successors, (2139), 3 states have internal predecessors, (2139), 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) [2023-01-28 07:26:08,008 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) [2023-01-28 07:26:08,010 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) [2023-01-28 07:26:08,010 INFO L175 Difference]: Start difference. First operand has 34 places, 37 transitions, 90 flow. Second operand 3 states and 2139 transitions. [2023-01-28 07:26:08,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 48 transitions, 211 flow [2023-01-28 07:26:08,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 48 transitions, 207 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 07:26:08,012 INFO L231 Difference]: Finished difference. Result has 36 places, 40 transitions, 112 flow [2023-01-28 07:26:08,012 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} [2023-01-28 07:26:08,013 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-01-28 07:26:08,013 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 40 transitions, 112 flow [2023-01-28 07:26:08,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 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) [2023-01-28 07:26:08,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:26:08,014 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:26:08,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-28 07:26:08,222 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 [2023-01-28 07:26:08,222 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)] === [2023-01-28 07:26:08,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:26:08,225 INFO L85 PathProgramCache]: Analyzing trace with hash -280812396, now seen corresponding path program 1 times [2023-01-28 07:26:08,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:26:08,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493116276] [2023-01-28 07:26:08,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:26:08,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:26:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:26:08,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:26:08,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:26:08,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493116276] [2023-01-28 07:26:08,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493116276] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:26:08,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448247801] [2023-01-28 07:26:08,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:26:08,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:26:08,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:26:08,620 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) [2023-01-28 07:26:08,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 07:26:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:26:09,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 284 conjunts are in the unsatisfiable core [2023-01-28 07:26:09,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:26:09,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:26:09,767 INFO L217 Elim1Store]: Index analysis took 141 ms [2023-01-28 07:26:15,064 WARN L222 SmtUtils]: Spent 5.24s 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) [2023-01-28 07:26:15,081 INFO L321 Elim1Store]: treesize reduction 8656, result has 6.5 percent of original size [2023-01-28 07:26:15,084 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 [2023-01-28 07:26:19,524 INFO L321 Elim1Store]: treesize reduction 83, result has 27.2 percent of original size [2023-01-28 07:26:19,524 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 [2023-01-28 07:26:19,644 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-01-28 07:26:19,645 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 [2023-01-28 07:26:19,678 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 [2023-01-28 07:26:19,710 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 [2023-01-28 07:26:19,743 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 [2023-01-28 07:26:19,875 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-01-28 07:26:19,882 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 [2023-01-28 07:26:19,919 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 [2023-01-28 07:26:19,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 07:26:19,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 07:26:19,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448247801] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:26:19,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:26:19,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2023-01-28 07:26:19,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084018903] [2023-01-28 07:26:19,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:26:19,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 07:26:19,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:26:19,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 07:26:19,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-01-28 07:26:19,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 638 out of 1661 [2023-01-28 07:26:19,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 40 transitions, 112 flow. Second operand has 6 states, 6 states have (on average 639.1666666666666) internal successors, (3835), 6 states have internal predecessors, (3835), 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) [2023-01-28 07:26:19,936 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:26:19,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 638 of 1661 [2023-01-28 07:26:19,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:26:20,859 INFO L130 PetriNetUnfolder]: 192/407 cut-off events. [2023-01-28 07:26:20,859 INFO L131 PetriNetUnfolder]: For 100/100 co-relation queries the response was YES. [2023-01-28 07:26:20,859 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. [2023-01-28 07:26:20,860 INFO L137 encePairwiseOnDemand]: 1651/1661 looper letters, 55 selfloop transitions, 11 changer transitions 1/67 dead transitions. [2023-01-28 07:26:20,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 67 transitions, 331 flow [2023-01-28 07:26:20,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 07:26:20,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 07:26:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3252 transitions. [2023-01-28 07:26:20,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39157134256472004 [2023-01-28 07:26:20,866 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3252 transitions. [2023-01-28 07:26:20,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3252 transitions. [2023-01-28 07:26:20,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:26:20,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3252 transitions. [2023-01-28 07:26:20,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 650.4) internal successors, (3252), 5 states have internal predecessors, (3252), 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) [2023-01-28 07:26:20,879 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) [2023-01-28 07:26:20,880 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) [2023-01-28 07:26:20,880 INFO L175 Difference]: Start difference. First operand has 36 places, 40 transitions, 112 flow. Second operand 5 states and 3252 transitions. [2023-01-28 07:26:20,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 67 transitions, 331 flow [2023-01-28 07:26:20,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 67 transitions, 323 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:26:20,882 INFO L231 Difference]: Finished difference. Result has 41 places, 45 transitions, 176 flow [2023-01-28 07:26:20,882 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} [2023-01-28 07:26:20,883 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2023-01-28 07:26:20,883 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 45 transitions, 176 flow [2023-01-28 07:26:20,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 639.1666666666666) internal successors, (3835), 6 states have internal predecessors, (3835), 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) [2023-01-28 07:26:20,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:26:20,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:26:20,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-28 07:26:21,092 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 [2023-01-28 07:26:21,092 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)] === [2023-01-28 07:26:21,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:26:21,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1253748659, now seen corresponding path program 1 times [2023-01-28 07:26:21,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:26:21,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608397202] [2023-01-28 07:26:21,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:26:21,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:26:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:26:21,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 07:26:21,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:26:21,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608397202] [2023-01-28 07:26:21,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608397202] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:26:21,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:26:21,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:26:21,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840661339] [2023-01-28 07:26:21,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:26:21,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:26:21,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:26:21,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:26:21,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:26:21,312 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 742 out of 1661 [2023-01-28 07:26:21,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 45 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 745.3333333333334) internal successors, (2236), 3 states have internal predecessors, (2236), 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) [2023-01-28 07:26:21,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:26:21,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 742 of 1661 [2023-01-28 07:26:21,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:26:21,586 INFO L130 PetriNetUnfolder]: 191/405 cut-off events. [2023-01-28 07:26:21,587 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 07:26:21,587 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. [2023-01-28 07:26:21,588 INFO L137 encePairwiseOnDemand]: 1659/1661 looper letters, 42 selfloop transitions, 1 changer transitions 0/43 dead transitions. [2023-01-28 07:26:21,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 258 flow [2023-01-28 07:26:21,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:26:21,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:26:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2261 transitions. [2023-01-28 07:26:21,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4537427252659041 [2023-01-28 07:26:21,595 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2261 transitions. [2023-01-28 07:26:21,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2261 transitions. [2023-01-28 07:26:21,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:26:21,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2261 transitions. [2023-01-28 07:26:21,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 753.6666666666666) internal successors, (2261), 3 states have internal predecessors, (2261), 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) [2023-01-28 07:26:21,605 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) [2023-01-28 07:26:21,605 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) [2023-01-28 07:26:21,606 INFO L175 Difference]: Start difference. First operand has 41 places, 45 transitions, 176 flow. Second operand 3 states and 2261 transitions. [2023-01-28 07:26:21,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 258 flow [2023-01-28 07:26:21,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 43 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:26:21,609 INFO L231 Difference]: Finished difference. Result has 40 places, 43 transitions, 166 flow [2023-01-28 07:26:21,610 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} [2023-01-28 07:26:21,611 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2023-01-28 07:26:21,611 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 43 transitions, 166 flow [2023-01-28 07:26:21,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 745.3333333333334) internal successors, (2236), 3 states have internal predecessors, (2236), 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) [2023-01-28 07:26:21,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:26:21,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:26:21,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 07:26:21,612 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)] === [2023-01-28 07:26:21,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:26:21,612 INFO L85 PathProgramCache]: Analyzing trace with hash 194489575, now seen corresponding path program 1 times [2023-01-28 07:26:21,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:26:21,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993434391] [2023-01-28 07:26:21,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:26:21,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:26:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:26:22,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:26:22,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:26:22,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993434391] [2023-01-28 07:26:22,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993434391] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:26:22,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072786087] [2023-01-28 07:26:22,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:26:22,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:26:22,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:26:22,166 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) [2023-01-28 07:26:22,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 07:26:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:26:23,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-28 07:26:23,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:26:23,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:26:23,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:26:23,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:26:23,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072786087] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:26:23,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:26:23,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-01-28 07:26:23,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676634980] [2023-01-28 07:26:23,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:26:23,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-28 07:26:23,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:26:23,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-28 07:26:23,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-01-28 07:26:23,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1661 [2023-01-28 07:26:23,164 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 43 transitions, 166 flow. Second operand has 8 states, 8 states have (on average 730.0) internal successors, (5840), 8 states have internal predecessors, (5840), 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) [2023-01-28 07:26:23,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:26:23,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1661 [2023-01-28 07:26:23,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:26:23,549 INFO L130 PetriNetUnfolder]: 191/410 cut-off events. [2023-01-28 07:26:23,550 INFO L131 PetriNetUnfolder]: For 205/205 co-relation queries the response was YES. [2023-01-28 07:26:23,550 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. [2023-01-28 07:26:23,551 INFO L137 encePairwiseOnDemand]: 1654/1661 looper letters, 37 selfloop transitions, 11 changer transitions 0/48 dead transitions. [2023-01-28 07:26:23,551 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 48 transitions, 278 flow [2023-01-28 07:26:23,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 07:26:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 07:26:23,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 5144 transitions. [2023-01-28 07:26:23,559 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4424185086436742 [2023-01-28 07:26:23,559 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 5144 transitions. [2023-01-28 07:26:23,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 5144 transitions. [2023-01-28 07:26:23,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:26:23,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 5144 transitions. [2023-01-28 07:26:23,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 734.8571428571429) internal successors, (5144), 7 states have internal predecessors, (5144), 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) [2023-01-28 07:26:23,575 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) [2023-01-28 07:26:23,576 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) [2023-01-28 07:26:23,576 INFO L175 Difference]: Start difference. First operand has 40 places, 43 transitions, 166 flow. Second operand 7 states and 5144 transitions. [2023-01-28 07:26:23,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 48 transitions, 278 flow [2023-01-28 07:26:23,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 48 transitions, 277 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:26:23,578 INFO L231 Difference]: Finished difference. Result has 45 places, 48 transitions, 207 flow [2023-01-28 07:26:23,578 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} [2023-01-28 07:26:23,578 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2023-01-28 07:26:23,578 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 207 flow [2023-01-28 07:26:23,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 730.0) internal successors, (5840), 8 states have internal predecessors, (5840), 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) [2023-01-28 07:26:23,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:26:23,580 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:26:23,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 07:26:23,788 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 [2023-01-28 07:26:23,789 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)] === [2023-01-28 07:26:23,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:26:23,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1968621724, now seen corresponding path program 2 times [2023-01-28 07:26:23,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:26:23,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878132506] [2023-01-28 07:26:23,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:26:23,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:26:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:26:24,614 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:26:24,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:26:24,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878132506] [2023-01-28 07:26:24,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878132506] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:26:24,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392083358] [2023-01-28 07:26:24,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:26:24,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:26:24,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:26:24,615 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) [2023-01-28 07:26:24,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-28 07:26:25,533 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-28 07:26:25,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:26:25,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 22 conjunts are in the unsatisfiable core [2023-01-28 07:26:25,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:26:25,771 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-01-28 07:26:25,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 07:26:25,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392083358] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:26:25,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:26:25,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2023-01-28 07:26:25,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854118004] [2023-01-28 07:26:25,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:26:25,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:26:25,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:26:25,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:26:25,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-01-28 07:26:25,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 739 out of 1661 [2023-01-28 07:26:25,775 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 742.3333333333334) internal successors, (2227), 3 states have internal predecessors, (2227), 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) [2023-01-28 07:26:25,775 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:26:25,775 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 739 of 1661 [2023-01-28 07:26:25,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:26:26,108 INFO L130 PetriNetUnfolder]: 157/344 cut-off events. [2023-01-28 07:26:26,109 INFO L131 PetriNetUnfolder]: For 176/176 co-relation queries the response was YES. [2023-01-28 07:26:26,109 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. [2023-01-28 07:26:26,110 INFO L137 encePairwiseOnDemand]: 1657/1661 looper letters, 42 selfloop transitions, 3 changer transitions 6/51 dead transitions. [2023-01-28 07:26:26,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 51 transitions, 310 flow [2023-01-28 07:26:26,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:26:26,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:26:26,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2257 transitions. [2023-01-28 07:26:26,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4529399959863536 [2023-01-28 07:26:26,114 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2257 transitions. [2023-01-28 07:26:26,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2257 transitions. [2023-01-28 07:26:26,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:26:26,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2257 transitions. [2023-01-28 07:26:26,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 752.3333333333334) internal successors, (2257), 3 states have internal predecessors, (2257), 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) [2023-01-28 07:26:26,121 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) [2023-01-28 07:26:26,122 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) [2023-01-28 07:26:26,122 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 207 flow. Second operand 3 states and 2257 transitions. [2023-01-28 07:26:26,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 51 transitions, 310 flow [2023-01-28 07:26:26,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 288 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-01-28 07:26:26,125 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 156 flow [2023-01-28 07:26:26,125 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} [2023-01-28 07:26:26,126 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2023-01-28 07:26:26,126 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 156 flow [2023-01-28 07:26:26,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 742.3333333333334) internal successors, (2227), 3 states have internal predecessors, (2227), 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) [2023-01-28 07:26:26,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:26:26,127 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:26:26,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-28 07:26:26,336 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 [2023-01-28 07:26:26,336 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)] === [2023-01-28 07:26:26,336 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:26:26,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1705656848, now seen corresponding path program 1 times [2023-01-28 07:26:26,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:26:26,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330489792] [2023-01-28 07:26:26,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:26:26,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:26:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:26:27,290 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:26:27,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:26:27,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330489792] [2023-01-28 07:26:27,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330489792] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:26:27,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811679945] [2023-01-28 07:26:27,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:26:27,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:26:27,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:26:27,292 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) [2023-01-28 07:26:27,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-28 07:26:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:26:28,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 15 conjunts are in the unsatisfiable core [2023-01-28 07:26:28,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:26:28,229 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:26:28,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:26:28,403 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:26:28,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811679945] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:26:28,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:26:28,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-01-28 07:26:28,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116192204] [2023-01-28 07:26:28,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:26:28,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-28 07:26:28,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:26:28,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-28 07:26:28,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-01-28 07:26:28,410 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1661 [2023-01-28 07:26:28,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 156 flow. Second operand has 17 states, 17 states have (on average 729.5882352941177) internal successors, (12403), 17 states have internal predecessors, (12403), 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) [2023-01-28 07:26:28,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:26:28,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1661 [2023-01-28 07:26:28,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:26:31,388 INFO L130 PetriNetUnfolder]: 67/177 cut-off events. [2023-01-28 07:26:31,388 INFO L131 PetriNetUnfolder]: For 146/146 co-relation queries the response was YES. [2023-01-28 07:26:31,389 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. [2023-01-28 07:26:31,389 INFO L137 encePairwiseOnDemand]: 1654/1661 looper letters, 33 selfloop transitions, 17 changer transitions 0/50 dead transitions. [2023-01-28 07:26:31,389 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 50 transitions, 292 flow [2023-01-28 07:26:31,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-28 07:26:31,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-28 07:26:31,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8796 transitions. [2023-01-28 07:26:31,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44130042143287174 [2023-01-28 07:26:31,405 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 8796 transitions. [2023-01-28 07:26:31,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 8796 transitions. [2023-01-28 07:26:31,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:26:31,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 8796 transitions. [2023-01-28 07:26:31,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 733.0) internal successors, (8796), 12 states have internal predecessors, (8796), 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) [2023-01-28 07:26:31,437 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) [2023-01-28 07:26:31,440 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) [2023-01-28 07:26:31,440 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 156 flow. Second operand 12 states and 8796 transitions. [2023-01-28 07:26:31,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 50 transitions, 292 flow [2023-01-28 07:26:31,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 50 transitions, 286 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:26:31,442 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 276 flow [2023-01-28 07:26:31,442 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} [2023-01-28 07:26:31,445 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 20 predicate places. [2023-01-28 07:26:31,445 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 276 flow [2023-01-28 07:26:31,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 729.5882352941177) internal successors, (12403), 17 states have internal predecessors, (12403), 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) [2023-01-28 07:26:31,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:26:31,447 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:26:31,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-01-28 07:26:31,657 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 [2023-01-28 07:26:31,657 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)] === [2023-01-28 07:26:31,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:26:31,658 INFO L85 PathProgramCache]: Analyzing trace with hash 580811568, now seen corresponding path program 2 times [2023-01-28 07:26:31,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:26:31,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19278639] [2023-01-28 07:26:31,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:26:31,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:26:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:26:32,773 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:26:32,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:26:32,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19278639] [2023-01-28 07:26:32,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19278639] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:26:32,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810498296] [2023-01-28 07:26:32,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:26:32,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:26:32,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:26:32,775 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) [2023-01-28 07:26:32,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-28 07:26:34,959 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 07:26:34,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:26:34,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 27 conjunts are in the unsatisfiable core [2023-01-28 07:26:34,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:26:35,178 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:26:35,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:26:35,654 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:26:35,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810498296] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:26:35,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:26:35,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-01-28 07:26:35,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800149077] [2023-01-28 07:26:35,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:26:35,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-01-28 07:26:35,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:26:35,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-01-28 07:26:35,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=871, Unknown=0, NotChecked=0, Total=1190 [2023-01-28 07:26:35,669 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1661 [2023-01-28 07:26:35,682 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 276 flow. Second operand has 35 states, 35 states have (on average 729.2857142857143) internal successors, (25525), 35 states have internal predecessors, (25525), 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) [2023-01-28 07:26:35,683 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:26:35,683 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1661 [2023-01-28 07:26:35,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:26:49,145 WARN L222 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 07:27:07,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-28 07:27:08,130 INFO L130 PetriNetUnfolder]: 67/195 cut-off events. [2023-01-28 07:27:08,130 INFO L131 PetriNetUnfolder]: For 605/605 co-relation queries the response was YES. [2023-01-28 07:27:08,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 195 events. 67/195 cut-off events. For 605/605 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 450 event pairs, 53 based on Foata normal form. 30/220 useless extension candidates. Maximal degree in co-relation 631. Up to 163 conditions per place. [2023-01-28 07:27:08,131 INFO L137 encePairwiseOnDemand]: 1654/1661 looper letters, 33 selfloop transitions, 35 changer transitions 0/68 dead transitions. [2023-01-28 07:27:08,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 68 transitions, 520 flow [2023-01-28 07:27:08,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-28 07:27:08,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-28 07:27:08,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 17565 transitions. [2023-01-28 07:27:08,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44062311860325104 [2023-01-28 07:27:08,152 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 17565 transitions. [2023-01-28 07:27:08,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 17565 transitions. [2023-01-28 07:27:08,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:27:08,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 17565 transitions. [2023-01-28 07:27:08,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 731.875) internal successors, (17565), 24 states have internal predecessors, (17565), 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) [2023-01-28 07:27:08,199 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) [2023-01-28 07:27:08,201 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) [2023-01-28 07:27:08,201 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 276 flow. Second operand 24 states and 17565 transitions. [2023-01-28 07:27:08,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 68 transitions, 520 flow [2023-01-28 07:27:08,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 68 transitions, 496 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-01-28 07:27:08,204 INFO L231 Difference]: Finished difference. Result has 88 places, 68 transitions, 540 flow [2023-01-28 07:27:08,204 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=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=540, PETRI_PLACES=88, PETRI_TRANSITIONS=68} [2023-01-28 07:27:08,204 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 53 predicate places. [2023-01-28 07:27:08,205 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 68 transitions, 540 flow [2023-01-28 07:27:08,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 729.2857142857143) internal successors, (25525), 35 states have internal predecessors, (25525), 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) [2023-01-28 07:27:08,206 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:27:08,207 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:27:08,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-28 07:27:08,432 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 [2023-01-28 07:27:08,432 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)] === [2023-01-28 07:27:08,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:27:08,432 INFO L85 PathProgramCache]: Analyzing trace with hash 609412464, now seen corresponding path program 3 times [2023-01-28 07:27:08,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:27:08,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372221220] [2023-01-28 07:27:08,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:27:08,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:27:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:27:10,284 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:27:10,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:27:10,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372221220] [2023-01-28 07:27:10,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372221220] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:27:10,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601905552] [2023-01-28 07:27:10,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 07:27:10,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:27:10,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:27:10,286 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) [2023-01-28 07:27:10,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process Received shutdown request... [2023-01-28 07:32:33,516 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 07:32:33,516 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 07:32:34,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-01-28 07:32:34,729 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forcibly destroying the process [2023-01-28 07:32:34,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 137 [2023-01-28 07:32:34,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-01-28 07:32:34,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:32:34,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2023-01-28 07:32:34,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107173337] [2023-01-28 07:32:34,742 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-01-28 07:32:34,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-01-28 07:32:34,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:32:34,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-01-28 07:32:34,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2023-01-28 07:32:34,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1661 [2023-01-28 07:32:34,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 68 transitions, 540 flow. Second operand has 25 states, 25 states have (on average 729.32) internal successors, (18233), 25 states have internal predecessors, (18233), 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) [2023-01-28 07:32:34,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:32:34,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1661 [2023-01-28 07:32:34,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:32:34,761 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2023-01-28 07:32:34,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 07:32:34,761 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-01-28 07:32:34,762 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2023-01-28 07:32:34,762 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2023-01-28 07:32:34,762 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2023-01-28 07:32:34,762 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-01-28 07:32:34,762 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2023-01-28 07:32:34,762 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2023-01-28 07:32:34,763 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2023-01-28 07:32:34,763 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2023-01-28 07:32:34,763 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2023-01-28 07:32:34,766 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:32:34,766 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:32:34,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:32:34 BasicIcfg [2023-01-28 07:32:34,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:32:34,768 INFO L158 Benchmark]: Toolchain (without parser) took 864617.16ms. Allocated memory was 325.1MB in the beginning and 1.3GB in the end (delta: 994.1MB). Free memory was 274.5MB in the beginning and 1.0GB in the end (delta: -740.7MB). Peak memory consumption was 255.6MB. Max. memory is 16.0GB. [2023-01-28 07:32:34,768 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 325.1MB. Free memory is still 273.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:32:34,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3817.84ms. Allocated memory was 325.1MB in the beginning and 440.4MB in the end (delta: 115.3MB). Free memory was 274.0MB in the beginning and 307.5MB in the end (delta: -33.5MB). Peak memory consumption was 132.8MB. Max. memory is 16.0GB. [2023-01-28 07:32:34,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.81ms. Allocated memory is still 440.4MB. Free memory was 307.5MB in the beginning and 296.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 07:32:34,768 INFO L158 Benchmark]: Boogie Preprocessor took 72.91ms. Allocated memory is still 440.4MB. Free memory was 296.0MB in the beginning and 289.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-01-28 07:32:34,768 INFO L158 Benchmark]: RCFGBuilder took 984.09ms. Allocated memory is still 440.4MB. Free memory was 289.7MB in the beginning and 353.4MB in the end (delta: -63.6MB). Peak memory consumption was 60.8MB. Max. memory is 16.0GB. [2023-01-28 07:32:34,769 INFO L158 Benchmark]: TraceAbstraction took 859603.92ms. Allocated memory was 440.4MB in the beginning and 1.3GB in the end (delta: 878.7MB). Free memory was 353.4MB in the beginning and 1.0GB in the end (delta: -661.9MB). Peak memory consumption was 216.8MB. Max. memory is 16.0GB. [2023-01-28 07:32:34,769 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 325.1MB. Free memory is still 273.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 3817.84ms. Allocated memory was 325.1MB in the beginning and 440.4MB in the end (delta: 115.3MB). Free memory was 274.0MB in the beginning and 307.5MB in the end (delta: -33.5MB). Peak memory consumption was 132.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 133.81ms. Allocated memory is still 440.4MB. Free memory was 307.5MB in the beginning and 296.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Preprocessor took 72.91ms. Allocated memory is still 440.4MB. Free memory was 296.0MB in the beginning and 289.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * RCFGBuilder took 984.09ms. Allocated memory is still 440.4MB. Free memory was 289.7MB in the beginning and 353.4MB in the end (delta: -63.6MB). Peak memory consumption was 60.8MB. Max. memory is 16.0GB. * TraceAbstraction took 859603.92ms. Allocated memory was 440.4MB in the beginning and 1.3GB in the end (delta: 878.7MB). Free memory was 353.4MB in the beginning and 1.0GB in the end (delta: -661.9MB). Peak memory consumption was 216.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 469.4s, 731 PlacesBefore, 35 PlacesAfterwards, 778 TransitionsBefore, 49 TransitionsAfterwards, 12132 CoEnabledTransitionPairs, 11 FixpointIterations, 560 TrivialSequentialCompositions, 166 ConcurrentSequentialCompositions, 83 TrivialYvCompositions, 31 ConcurrentYvCompositions, 33 ChoiceCompositions, 873 TotalNumberOfCompositions, 10811 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9807, independent: 9735, independent conditional: 0, independent unconditional: 9735, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6586, independent: 6569, independent conditional: 0, independent unconditional: 6569, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9807, independent: 3166, independent conditional: 0, independent unconditional: 3166, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 6586, unknown conditional: 0, unknown unconditional: 6586] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 7068]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 7069]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 900 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 859.5s, OverallIterations: 10, TraceHistogramMax: 22, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 38.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 469.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 10.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 10.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1602 IncrementalHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 131 mSolverCounterUnsat, 0 mSDtfsCounter, 1602 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 202 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 28.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=540occurred in iteration=9, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 6.2s SatisfiabilityAnalysisTime, 16.6s InterpolantComputationTime, 195 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 222 ConstructedInterpolants, 1 QuantifiedInterpolants, 1496 SizeOfPredicates, 115 NumberOfNonLiveVariables, 6971 ConjunctsInSsa, 372 ConjunctsInUnsatCore, 19 InterpolantComputations, 6 PerfectInterpolantSequences, 13/476 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown