/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:42:36,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:42:36,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:42:36,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:42:36,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:42:36,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:42:36,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:42:36,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:42:36,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:42:36,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:42:36,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:42:36,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:42:36,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:42:36,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:42:36,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:42:36,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:42:36,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:42:36,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:42:36,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:42:36,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:42:36,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:42:36,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:42:36,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:42:36,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:42:36,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 18:42:36,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 18:42:36,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 18:42:36,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 18:42:36,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 18:42:36,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 18:42:36,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 18:42:36,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 18:42:36,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 18:42:36,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 18:42:36,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 18:42:36,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 18:42:36,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 18:42:36,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 18:42:36,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:42:36,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:42:36,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:42:36,302 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 [2023-01-27 18:42:36,323 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:42:36,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:42:36,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:42:36,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:42:36,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:42:36,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:42:36,324 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:42:36,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:42:36,327 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:42:36,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:42:36,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:42:36,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:42:36,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:42:36,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:42:36,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:42:36,328 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:42:36,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:42:36,328 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:42:36,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:42:36,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:42:36,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:42:36,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:42:36,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:42:36,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:42:36,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:42:36,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:42:36,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:42:36,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:42:36,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:42:36,329 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:42:36,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:42:36,329 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:42:36,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:42:36,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:42:36,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:42:36,524 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:42:36,524 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:42:36,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2023-01-27 18:42:37,480 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:42:37,849 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:42:37,850 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2023-01-27 18:42:37,883 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2e6676a7/3e1f8d7c90b045cb8effa4d4435704b1/FLAG7990b433a [2023-01-27 18:42:38,052 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2e6676a7/3e1f8d7c90b045cb8effa4d4435704b1 [2023-01-27 18:42:38,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:42:38,055 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:42:38,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:42:38,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:42:38,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:42:38,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:42:38" (1/1) ... [2023-01-27 18:42:38,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd6ddea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:42:38, skipping insertion in model container [2023-01-27 18:42:38,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:42:38" (1/1) ... [2023-01-27 18:42:38,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:42:38,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:42:38,366 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_configure_pc8736x_gpio_set.i[5469,5482] [2023-01-27 18:42:40,167 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:42:40,538 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:42:40,539 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:42:40,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:42:40,604 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:42:40,621 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_configure_pc8736x_gpio_set.i[5469,5482] [2023-01-27 18:42:40,733 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:42:40,821 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:42:40,822 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:42:40,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:42:41,155 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:42:41,155 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:42:41,155 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:42:41,155 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:42:41,155 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:42:41,155 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:42:41,155 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:42:41,160 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:42:41,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:42:41 WrapperNode [2023-01-27 18:42:41,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:42:41,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:42:41,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:42:41,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:42:41,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:42:41" (1/1) ... [2023-01-27 18:42:41,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:42:41" (1/1) ... [2023-01-27 18:42:41,268 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 72, statements flattened = 800 [2023-01-27 18:42:41,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:42:41,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:42:41,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:42:41,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:42:41,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:42:41" (1/1) ... [2023-01-27 18:42:41,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:42:41" (1/1) ... [2023-01-27 18:42:41,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:42:41" (1/1) ... [2023-01-27 18:42:41,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:42:41" (1/1) ... [2023-01-27 18:42:41,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:42:41" (1/1) ... [2023-01-27 18:42:41,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:42:41" (1/1) ... [2023-01-27 18:42:41,300 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:42:41" (1/1) ... [2023-01-27 18:42:41,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:42:41" (1/1) ... [2023-01-27 18:42:41,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:42:41,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:42:41,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:42:41,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:42:41,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:42:41" (1/1) ... [2023-01-27 18:42:41,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:42:41,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:42:41,333 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) [2023-01-27 18:42:41,356 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 [2023-01-27 18:42:41,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 18:42:41,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 18:42:41,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:42:41,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-27 18:42:41,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:42:41,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:42:41,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-27 18:42:41,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:42:41,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-27 18:42:41,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:42:41,363 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2023-01-27 18:42:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2023-01-27 18:42:41,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 18:42:41,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:42:41,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 18:42:41,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-27 18:42:41,364 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-27 18:42:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-27 18:42:41,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:42:41,365 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 18:42:41,727 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:42:41,728 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:42:42,378 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:42:42,400 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:42:42,401 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-01-27 18:42:42,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:42:42 BoogieIcfgContainer [2023-01-27 18:42:42,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:42:42,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:42:42,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:42:42,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:42:42,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:42:38" (1/3) ... [2023-01-27 18:42:42,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b6eecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:42:42, skipping insertion in model container [2023-01-27 18:42:42,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:42:41" (2/3) ... [2023-01-27 18:42:42,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b6eecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:42:42, skipping insertion in model container [2023-01-27 18:42:42,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:42:42" (3/3) ... [2023-01-27 18:42:42,411 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2023-01-27 18:42:42,421 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:42:42,421 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-27 18:42:42,422 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:42:42,503 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 18:42:42,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 826 places, 877 transitions, 1770 flow [2023-01-27 18:42:42,721 INFO L130 PetriNetUnfolder]: 58/875 cut-off events. [2023-01-27 18:42:42,721 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:42:42,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 875 events. 58/875 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1525 event pairs, 0 based on Foata normal form. 0/815 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-27 18:42:42,732 INFO L82 GeneralOperation]: Start removeDead. Operand has 826 places, 877 transitions, 1770 flow [2023-01-27 18:42:42,742 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 816 places, 867 transitions, 1743 flow [2023-01-27 18:42:42,744 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:42:42,754 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 816 places, 867 transitions, 1743 flow [2023-01-27 18:42:42,759 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 816 places, 867 transitions, 1743 flow [2023-01-27 18:42:42,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 816 places, 867 transitions, 1743 flow [2023-01-27 18:42:42,943 INFO L130 PetriNetUnfolder]: 58/867 cut-off events. [2023-01-27 18:42:42,944 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 18:42:42,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 867 events. 58/867 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1378 event pairs, 0 based on Foata normal form. 0/807 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-27 18:42:42,960 INFO L119 LiptonReduction]: Number of co-enabled transitions 38404 [2023-01-27 18:43:46,255 WARN L222 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:43:51,821 WARN L222 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 281 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:44:03,288 WARN L222 SmtUtils]: Spent 11.46s on a formula simplification. DAG size of input: 295 DAG size of output: 293 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:44:08,736 WARN L222 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 284 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:46:54,951 WARN L222 SmtUtils]: Spent 2.48m on a formula simplification. DAG size of input: 677 DAG size of output: 675 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:47:23,755 WARN L222 SmtUtils]: Spent 28.78s 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) [2023-01-27 18:48:48,382 WARN L222 SmtUtils]: Spent 1.41m on a formula simplification. DAG size of input: 680 DAG size of output: 678 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:50:00,575 WARN L222 SmtUtils]: Spent 1.20m 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) [2023-01-27 18:50:11,642 INFO L134 LiptonReduction]: Checked pairs total: 29151 [2023-01-27 18:50:11,642 INFO L136 LiptonReduction]: Total number of compositions: 955 [2023-01-27 18:50:11,658 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:50:11,662 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;@26a3419d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:50:11,663 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-27 18:50:11,669 INFO L130 PetriNetUnfolder]: 6/12 cut-off events. [2023-01-27 18:50:11,669 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:50:11,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:50:11,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-27 18:50:11,671 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:50:11,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:50:11,674 INFO L85 PathProgramCache]: Analyzing trace with hash 3293283, now seen corresponding path program 1 times [2023-01-27 18:50:11,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:50:11,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456303115] [2023-01-27 18:50:11,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:50:11,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:50:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:50:12,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:12,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:50:12,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456303115] [2023-01-27 18:50:12,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456303115] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:50:12,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:50:12,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 18:50:12,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706261992] [2023-01-27 18:50:12,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:50:12,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-27 18:50:12,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:50:12,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-27 18:50:12,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-27 18:50:12,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 842 out of 1832 [2023-01-27 18:50:12,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 50 transitions, 109 flow. Second operand has 2 states, 2 states have (on average 843.5) internal successors, (1687), 2 states have internal predecessors, (1687), 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) [2023-01-27 18:50:12,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:50:12,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 842 of 1832 [2023-01-27 18:50:12,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:50:12,387 INFO L130 PetriNetUnfolder]: 88/178 cut-off events. [2023-01-27 18:50:12,387 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-01-27 18:50:12,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 178 events. 88/178 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 480 event pairs, 78 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 308. Up to 179 conditions per place. [2023-01-27 18:50:12,389 INFO L137 encePairwiseOnDemand]: 1820/1832 looper letters, 35 selfloop transitions, 0 changer transitions 3/38 dead transitions. [2023-01-27 18:50:12,389 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 161 flow [2023-01-27 18:50:12,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-27 18:50:12,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-27 18:50:12,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1734 transitions. [2023-01-27 18:50:12,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4732532751091703 [2023-01-27 18:50:12,408 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1734 transitions. [2023-01-27 18:50:12,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1734 transitions. [2023-01-27 18:50:12,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:50:12,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1734 transitions. [2023-01-27 18:50:12,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 867.0) internal successors, (1734), 2 states have internal predecessors, (1734), 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) [2023-01-27 18:50:12,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1832.0) internal successors, (5496), 3 states have internal predecessors, (5496), 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) [2023-01-27 18:50:12,432 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1832.0) internal successors, (5496), 3 states have internal predecessors, (5496), 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) [2023-01-27 18:50:12,433 INFO L175 Difference]: Start difference. First operand has 36 places, 50 transitions, 109 flow. Second operand 2 states and 1734 transitions. [2023-01-27 18:50:12,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 161 flow [2023-01-27 18:50:12,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 38 transitions, 156 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 18:50:12,442 INFO L231 Difference]: Finished difference. Result has 33 places, 35 transitions, 73 flow [2023-01-27 18:50:12,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=73, PETRI_PLACES=33, PETRI_TRANSITIONS=35} [2023-01-27 18:50:12,446 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-01-27 18:50:12,446 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 35 transitions, 73 flow [2023-01-27 18:50:12,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 843.5) internal successors, (1687), 2 states have internal predecessors, (1687), 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) [2023-01-27 18:50:12,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:50:12,447 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:50:12,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:50:12,448 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:50:12,453 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:50:12,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1951064947, now seen corresponding path program 1 times [2023-01-27 18:50:12,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:50:12,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574674642] [2023-01-27 18:50:12,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:50:12,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:50:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:50:13,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:13,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:50:13,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574674642] [2023-01-27 18:50:13,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574674642] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:50:13,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:50:13,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:50:13,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212275355] [2023-01-27 18:50:13,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:50:13,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:50:13,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:50:13,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:50:13,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:50:13,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 824 out of 1832 [2023-01-27 18:50:13,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 35 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 827.3333333333334) internal successors, (2482), 3 states have internal predecessors, (2482), 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) [2023-01-27 18:50:13,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:50:13,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 824 of 1832 [2023-01-27 18:50:13,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:50:13,613 INFO L130 PetriNetUnfolder]: 75/152 cut-off events. [2023-01-27 18:50:13,613 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:50:13,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 152 events. 75/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 391 event pairs, 65 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 321. Up to 152 conditions per place. [2023-01-27 18:50:13,614 INFO L137 encePairwiseOnDemand]: 1828/1832 looper letters, 34 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2023-01-27 18:50:13,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 36 transitions, 147 flow [2023-01-27 18:50:13,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:50:13,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:50:13,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2510 transitions. [2023-01-27 18:50:13,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4566957787481805 [2023-01-27 18:50:13,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2510 transitions. [2023-01-27 18:50:13,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2510 transitions. [2023-01-27 18:50:13,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:50:13,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2510 transitions. [2023-01-27 18:50:13,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 836.6666666666666) internal successors, (2510), 3 states have internal predecessors, (2510), 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) [2023-01-27 18:50:13,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1832.0) internal successors, (7328), 4 states have internal predecessors, (7328), 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) [2023-01-27 18:50:13,633 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1832.0) internal successors, (7328), 4 states have internal predecessors, (7328), 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) [2023-01-27 18:50:13,634 INFO L175 Difference]: Start difference. First operand has 33 places, 35 transitions, 73 flow. Second operand 3 states and 2510 transitions. [2023-01-27 18:50:13,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 36 transitions, 147 flow [2023-01-27 18:50:13,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 147 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-27 18:50:13,635 INFO L231 Difference]: Finished difference. Result has 33 places, 36 transitions, 87 flow [2023-01-27 18:50:13,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=33, PETRI_TRANSITIONS=36} [2023-01-27 18:50:13,636 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-01-27 18:50:13,636 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 36 transitions, 87 flow [2023-01-27 18:50:13,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 827.3333333333334) internal successors, (2482), 3 states have internal predecessors, (2482), 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) [2023-01-27 18:50:13,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:50:13,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:50:13,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:50:13,639 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:50:13,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:50:13,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1865034357, now seen corresponding path program 1 times [2023-01-27 18:50:13,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:50:13,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340005063] [2023-01-27 18:50:13,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:50:13,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:50:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:50:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:14,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:50:14,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340005063] [2023-01-27 18:50:14,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340005063] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:50:14,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925956257] [2023-01-27 18:50:14,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:50:14,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:50:14,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:50:14,606 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) [2023-01-27 18:50:14,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-27 18:50:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:50:15,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-27 18:50:15,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:50:15,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:15,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:50:15,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:15,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925956257] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:50:15,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:50:15,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-01-27 18:50:15,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759690110] [2023-01-27 18:50:15,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:50:15,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-27 18:50:15,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:50:15,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-27 18:50:15,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:50:15,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 820 out of 1832 [2023-01-27 18:50:15,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 36 transitions, 87 flow. Second operand has 8 states, 8 states have (on average 822.125) internal successors, (6577), 8 states have internal predecessors, (6577), 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) [2023-01-27 18:50:15,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:50:15,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 820 of 1832 [2023-01-27 18:50:15,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:50:16,373 INFO L130 PetriNetUnfolder]: 75/157 cut-off events. [2023-01-27 18:50:16,373 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:50:16,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 157 events. 75/157 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 409 event pairs, 65 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 340. Up to 152 conditions per place. [2023-01-27 18:50:16,375 INFO L137 encePairwiseOnDemand]: 1824/1832 looper letters, 33 selfloop transitions, 8 changer transitions 0/41 dead transitions. [2023-01-27 18:50:16,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 185 flow [2023-01-27 18:50:16,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 18:50:16,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 18:50:16,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4971 transitions. [2023-01-27 18:50:16,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45223799126637554 [2023-01-27 18:50:16,384 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4971 transitions. [2023-01-27 18:50:16,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4971 transitions. [2023-01-27 18:50:16,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:50:16,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4971 transitions. [2023-01-27 18:50:16,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 828.5) internal successors, (4971), 6 states have internal predecessors, (4971), 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) [2023-01-27 18:50:16,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1832.0) internal successors, (12824), 7 states have internal predecessors, (12824), 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) [2023-01-27 18:50:16,408 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1832.0) internal successors, (12824), 7 states have internal predecessors, (12824), 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) [2023-01-27 18:50:16,409 INFO L175 Difference]: Start difference. First operand has 33 places, 36 transitions, 87 flow. Second operand 6 states and 4971 transitions. [2023-01-27 18:50:16,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 185 flow [2023-01-27 18:50:16,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 181 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-27 18:50:16,410 INFO L231 Difference]: Finished difference. Result has 40 places, 41 transitions, 149 flow [2023-01-27 18:50:16,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=149, PETRI_PLACES=40, PETRI_TRANSITIONS=41} [2023-01-27 18:50:16,412 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2023-01-27 18:50:16,412 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 41 transitions, 149 flow [2023-01-27 18:50:16,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 822.125) internal successors, (6577), 8 states have internal predecessors, (6577), 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) [2023-01-27 18:50:16,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:50:16,414 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:50:16,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-27 18:50:16,620 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 [2023-01-27 18:50:16,621 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:50:16,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:50:16,621 INFO L85 PathProgramCache]: Analyzing trace with hash 714763277, now seen corresponding path program 2 times [2023-01-27 18:50:16,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:50:16,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207008718] [2023-01-27 18:50:16,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:50:16,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:50:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:50:17,206 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:17,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:50:17,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207008718] [2023-01-27 18:50:17,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207008718] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:50:17,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294908585] [2023-01-27 18:50:17,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:50:17,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:50:17,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:50:17,208 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) [2023-01-27 18:50:17,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-27 18:50:18,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 18:50:18,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:50:18,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 22 conjunts are in the unsatisfiable core [2023-01-27 18:50:18,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:50:18,673 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-27 18:50:18,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 53 [2023-01-27 18:50:18,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-27 18:50:18,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-01-27 18:50:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-01-27 18:50:18,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:50:18,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294908585] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:50:18,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:50:18,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-01-27 18:50:18,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332574307] [2023-01-27 18:50:18,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:50:18,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 18:50:18,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:50:18,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 18:50:18,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-01-27 18:50:18,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 789 out of 1832 [2023-01-27 18:50:18,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 41 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 791.75) internal successors, (3167), 4 states have internal predecessors, (3167), 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) [2023-01-27 18:50:18,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:50:18,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 789 of 1832 [2023-01-27 18:50:18,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:50:19,456 INFO L130 PetriNetUnfolder]: 75/163 cut-off events. [2023-01-27 18:50:19,456 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:50:19,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 163 events. 75/163 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 447 event pairs, 40 based on Foata normal form. 8/164 useless extension candidates. Maximal degree in co-relation 377. Up to 107 conditions per place. [2023-01-27 18:50:19,457 INFO L137 encePairwiseOnDemand]: 1826/1832 looper letters, 45 selfloop transitions, 5 changer transitions 1/51 dead transitions. [2023-01-27 18:50:19,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 275 flow [2023-01-27 18:50:19,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 18:50:19,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 18:50:19,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3202 transitions. [2023-01-27 18:50:19,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43695414847161573 [2023-01-27 18:50:19,464 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3202 transitions. [2023-01-27 18:50:19,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3202 transitions. [2023-01-27 18:50:19,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:50:19,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3202 transitions. [2023-01-27 18:50:19,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 800.5) internal successors, (3202), 4 states have internal predecessors, (3202), 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) [2023-01-27 18:50:19,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1832.0) internal successors, (9160), 5 states have internal predecessors, (9160), 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) [2023-01-27 18:50:19,477 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1832.0) internal successors, (9160), 5 states have internal predecessors, (9160), 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) [2023-01-27 18:50:19,477 INFO L175 Difference]: Start difference. First operand has 40 places, 41 transitions, 149 flow. Second operand 4 states and 3202 transitions. [2023-01-27 18:50:19,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 275 flow [2023-01-27 18:50:19,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 265 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-01-27 18:50:19,479 INFO L231 Difference]: Finished difference. Result has 43 places, 44 transitions, 167 flow [2023-01-27 18:50:19,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=167, PETRI_PLACES=43, PETRI_TRANSITIONS=44} [2023-01-27 18:50:19,479 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2023-01-27 18:50:19,479 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 44 transitions, 167 flow [2023-01-27 18:50:19,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 791.75) internal successors, (3167), 4 states have internal predecessors, (3167), 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) [2023-01-27 18:50:19,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:50:19,480 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:50:19,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-27 18:50:19,693 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 [2023-01-27 18:50:19,693 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:50:19,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:50:19,693 INFO L85 PathProgramCache]: Analyzing trace with hash 682825850, now seen corresponding path program 1 times [2023-01-27 18:50:19,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:50:19,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963310756] [2023-01-27 18:50:19,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:50:19,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:50:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:50:20,556 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:20,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:50:20,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963310756] [2023-01-27 18:50:20,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963310756] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:50:20,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111396639] [2023-01-27 18:50:20,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:50:20,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:50:20,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:50:20,558 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) [2023-01-27 18:50:20,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-27 18:50:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:50:21,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1175 conjuncts, 15 conjunts are in the unsatisfiable core [2023-01-27 18:50:21,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:50:21,669 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:21,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:50:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:21,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111396639] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:50:21,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:50:21,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-01-27 18:50:21,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391171101] [2023-01-27 18:50:21,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:50:21,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-27 18:50:21,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:50:21,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-27 18:50:21,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-01-27 18:50:21,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 820 out of 1832 [2023-01-27 18:50:21,886 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 44 transitions, 167 flow. Second operand has 17 states, 17 states have (on average 821.5882352941177) internal successors, (13967), 17 states have internal predecessors, (13967), 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) [2023-01-27 18:50:21,886 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:50:21,886 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 820 of 1832 [2023-01-27 18:50:21,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:50:24,042 INFO L130 PetriNetUnfolder]: 75/172 cut-off events. [2023-01-27 18:50:24,042 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2023-01-27 18:50:24,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 172 events. 75/172 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 481 event pairs, 57 based on Foata normal form. 9/174 useless extension candidates. Maximal degree in co-relation 476. Up to 158 conditions per place. [2023-01-27 18:50:24,043 INFO L137 encePairwiseOnDemand]: 1824/1832 looper letters, 36 selfloop transitions, 17 changer transitions 0/53 dead transitions. [2023-01-27 18:50:24,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 53 transitions, 321 flow [2023-01-27 18:50:24,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-27 18:50:24,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-27 18:50:24,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 9908 transitions. [2023-01-27 18:50:24,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4506914119359534 [2023-01-27 18:50:24,058 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 9908 transitions. [2023-01-27 18:50:24,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 9908 transitions. [2023-01-27 18:50:24,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:50:24,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 9908 transitions. [2023-01-27 18:50:24,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 825.6666666666666) internal successors, (9908), 12 states have internal predecessors, (9908), 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) [2023-01-27 18:50:24,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1832.0) internal successors, (23816), 13 states have internal predecessors, (23816), 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) [2023-01-27 18:50:24,092 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1832.0) internal successors, (23816), 13 states have internal predecessors, (23816), 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) [2023-01-27 18:50:24,093 INFO L175 Difference]: Start difference. First operand has 43 places, 44 transitions, 167 flow. Second operand 12 states and 9908 transitions. [2023-01-27 18:50:24,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 53 transitions, 321 flow [2023-01-27 18:50:24,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 315 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:50:24,095 INFO L231 Difference]: Finished difference. Result has 58 places, 53 transitions, 305 flow [2023-01-27 18:50:24,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=305, PETRI_PLACES=58, PETRI_TRANSITIONS=53} [2023-01-27 18:50:24,095 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 22 predicate places. [2023-01-27 18:50:24,096 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 53 transitions, 305 flow [2023-01-27 18:50:24,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 821.5882352941177) internal successors, (13967), 17 states have internal predecessors, (13967), 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) [2023-01-27 18:50:24,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:50:24,099 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:50:24,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-27 18:50:24,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:50:24,309 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:50:24,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:50:24,309 INFO L85 PathProgramCache]: Analyzing trace with hash -607907526, now seen corresponding path program 2 times [2023-01-27 18:50:24,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:50:24,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863001447] [2023-01-27 18:50:24,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:50:24,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:50:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:50:25,662 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:25,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:50:25,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863001447] [2023-01-27 18:50:25,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863001447] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:50:25,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022951651] [2023-01-27 18:50:25,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:50:25,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:50:25,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:50:25,664 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) [2023-01-27 18:50:25,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-27 18:50:26,699 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 18:50:26,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:50:26,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 288 conjunts are in the unsatisfiable core [2023-01-27 18:50:26,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:50:26,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:26,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:26,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:26,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:26,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:26,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:26,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:26,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:26,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:26,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:26,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:26,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:26,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:27,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:27,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:27,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:27,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:27,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:27,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:27,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:27,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:27,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:27,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:32,382 WARN L222 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 1236 DAG size of output: 265 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-27 18:50:32,387 INFO L321 Elim1Store]: treesize reduction 9114, result has 6.0 percent of original size [2023-01-27 18:50:32,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 12 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 84 case distinctions, treesize of input 524 treesize of output 1020 [2023-01-27 18:50:52,054 INFO L321 Elim1Store]: treesize reduction 83, result has 27.2 percent of original size [2023-01-27 18:50:52,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 421 treesize of output 424 [2023-01-27 18:50:52,133 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-01-27 18:50:52,134 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 327 treesize of output 326 [2023-01-27 18:50:52,160 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 315 treesize of output 315 [2023-01-27 18:50:52,191 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 309 treesize of output 309 [2023-01-27 18:50:52,215 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 303 treesize of output 303 [2023-01-27 18:50:52,312 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-01-27 18:50:52,317 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 [2023-01-27 18:50:52,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-01-27 18:50:52,511 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 [2023-01-27 18:50:52,544 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-01-27 18:50:52,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:50:52,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022951651] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:50:52,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:50:52,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 17 [2023-01-27 18:50:52,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947817204] [2023-01-27 18:50:52,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:50:52,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:50:52,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:50:52,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:50:52,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2023-01-27 18:50:52,548 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 730 out of 1832 [2023-01-27 18:50:52,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 305 flow. Second operand has 7 states, 7 states have (on average 731.7142857142857) internal successors, (5122), 7 states have internal predecessors, (5122), 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) [2023-01-27 18:50:52,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:50:52,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 730 of 1832 [2023-01-27 18:50:52,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:50:53,628 INFO L130 PetriNetUnfolder]: 71/165 cut-off events. [2023-01-27 18:50:53,628 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2023-01-27 18:50:53,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 165 events. 71/165 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 451 event pairs, 38 based on Foata normal form. 3/161 useless extension candidates. Maximal degree in co-relation 490. Up to 85 conditions per place. [2023-01-27 18:50:53,629 INFO L137 encePairwiseOnDemand]: 1819/1832 looper letters, 47 selfloop transitions, 13 changer transitions 1/61 dead transitions. [2023-01-27 18:50:53,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 61 transitions, 455 flow [2023-01-27 18:50:53,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 18:50:53,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 18:50:53,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4426 transitions. [2023-01-27 18:50:53,636 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4026564774381368 [2023-01-27 18:50:53,636 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4426 transitions. [2023-01-27 18:50:53,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4426 transitions. [2023-01-27 18:50:53,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:50:53,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4426 transitions. [2023-01-27 18:50:53,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 737.6666666666666) internal successors, (4426), 6 states have internal predecessors, (4426), 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) [2023-01-27 18:50:53,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1832.0) internal successors, (12824), 7 states have internal predecessors, (12824), 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) [2023-01-27 18:50:53,654 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1832.0) internal successors, (12824), 7 states have internal predecessors, (12824), 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) [2023-01-27 18:50:53,654 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 305 flow. Second operand 6 states and 4426 transitions. [2023-01-27 18:50:53,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 61 transitions, 455 flow [2023-01-27 18:50:53,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 61 transitions, 415 flow, removed 18 selfloop flow, removed 2 redundant places. [2023-01-27 18:50:53,660 INFO L231 Difference]: Finished difference. Result has 62 places, 54 transitions, 303 flow [2023-01-27 18:50:53,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=303, PETRI_PLACES=62, PETRI_TRANSITIONS=54} [2023-01-27 18:50:53,662 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 26 predicate places. [2023-01-27 18:50:53,662 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 54 transitions, 303 flow [2023-01-27 18:50:53,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 731.7142857142857) internal successors, (5122), 7 states have internal predecessors, (5122), 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) [2023-01-27 18:50:53,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:50:53,663 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:50:53,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-27 18:50:53,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:50:53,876 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:50:53,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:50:53,876 INFO L85 PathProgramCache]: Analyzing trace with hash 261067698, now seen corresponding path program 1 times [2023-01-27 18:50:53,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:50:53,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38294962] [2023-01-27 18:50:53,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:50:53,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:50:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:50:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:55,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:50:55,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38294962] [2023-01-27 18:50:55,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38294962] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:50:55,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599709649] [2023-01-27 18:50:55,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:50:55,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:50:55,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:50:55,616 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) [2023-01-27 18:50:55,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-27 18:50:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:50:57,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 27 conjunts are in the unsatisfiable core [2023-01-27 18:50:57,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:50:57,245 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:57,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:50:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:57,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599709649] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:50:57,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:50:57,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-01-27 18:50:57,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212942376] [2023-01-27 18:50:57,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:50:57,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-01-27 18:50:57,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:50:57,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-01-27 18:50:57,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=874, Unknown=0, NotChecked=0, Total=1190 [2023-01-27 18:50:57,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 820 out of 1832 [2023-01-27 18:50:57,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 54 transitions, 303 flow. Second operand has 35 states, 35 states have (on average 821.3428571428572) internal successors, (28747), 35 states have internal predecessors, (28747), 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) [2023-01-27 18:50:57,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:50:57,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 820 of 1832 [2023-01-27 18:50:57,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:51:28,899 INFO L130 PetriNetUnfolder]: 71/183 cut-off events. [2023-01-27 18:51:28,899 INFO L131 PetriNetUnfolder]: For 1179/1179 co-relation queries the response was YES. [2023-01-27 18:51:28,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 183 events. 71/183 cut-off events. For 1179/1179 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 472 event pairs, 55 based on Foata normal form. 30/208 useless extension candidates. Maximal degree in co-relation 588. Up to 151 conditions per place. [2023-01-27 18:51:28,900 INFO L137 encePairwiseOnDemand]: 1824/1832 looper letters, 37 selfloop transitions, 35 changer transitions 0/72 dead transitions. [2023-01-27 18:51:28,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 72 transitions, 543 flow [2023-01-27 18:51:28,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-27 18:51:28,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-27 18:51:28,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 19784 transitions. [2023-01-27 18:51:28,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44996360989810774 [2023-01-27 18:51:28,921 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 19784 transitions. [2023-01-27 18:51:28,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 19784 transitions. [2023-01-27 18:51:28,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:51:28,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 19784 transitions. [2023-01-27 18:51:28,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 824.3333333333334) internal successors, (19784), 24 states have internal predecessors, (19784), 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) [2023-01-27 18:51:29,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 1832.0) internal successors, (45800), 25 states have internal predecessors, (45800), 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) [2023-01-27 18:51:29,004 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 1832.0) internal successors, (45800), 25 states have internal predecessors, (45800), 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) [2023-01-27 18:51:29,005 INFO L175 Difference]: Start difference. First operand has 62 places, 54 transitions, 303 flow. Second operand 24 states and 19784 transitions. [2023-01-27 18:51:29,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 72 transitions, 543 flow [2023-01-27 18:51:29,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 72 transitions, 521 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-27 18:51:29,009 INFO L231 Difference]: Finished difference. Result has 93 places, 72 transitions, 569 flow [2023-01-27 18:51:29,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=569, PETRI_PLACES=93, PETRI_TRANSITIONS=72} [2023-01-27 18:51:29,009 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 57 predicate places. [2023-01-27 18:51:29,009 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 72 transitions, 569 flow [2023-01-27 18:51:29,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 821.3428571428572) internal successors, (28747), 35 states have internal predecessors, (28747), 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) [2023-01-27 18:51:29,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:51:29,012 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:51:29,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-27 18:51:29,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:51:29,213 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:51:29,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:51:29,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1007318322, now seen corresponding path program 2 times [2023-01-27 18:51:29,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:51:29,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207871181] [2023-01-27 18:51:29,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:51:29,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:51:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:51:30,850 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:51:30,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:51:30,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207871181] [2023-01-27 18:51:30,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207871181] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:51:30,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286417436] [2023-01-27 18:51:30,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:51:30,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:51:30,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:51:30,852 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) [2023-01-27 18:51:30,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-27 18:51:31,877 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 18:51:31,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:51:31,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 27 conjunts are in the unsatisfiable core [2023-01-27 18:51:31,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:51:32,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-01-27 18:51:32,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:51:32,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 16 treesize of output 18 [2023-01-27 18:51:32,308 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-01-27 18:51:32,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:51:32,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286417436] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:51:32,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:51:32,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [24] total 28 [2023-01-27 18:51:32,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282988337] [2023-01-27 18:51:32,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:51:32,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-27 18:51:32,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:51:32,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-27 18:51:32,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2023-01-27 18:51:32,312 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 786 out of 1832 [2023-01-27 18:51:32,313 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 72 transitions, 569 flow. Second operand has 6 states, 6 states have (on average 788.3333333333334) internal successors, (4730), 6 states have internal predecessors, (4730), 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) [2023-01-27 18:51:32,313 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:51:32,313 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 786 of 1832 [2023-01-27 18:51:32,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:51:32,957 INFO L130 PetriNetUnfolder]: 71/187 cut-off events. [2023-01-27 18:51:32,957 INFO L131 PetriNetUnfolder]: For 305/305 co-relation queries the response was YES. [2023-01-27 18:51:32,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 187 events. 71/187 cut-off events. For 305/305 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 498 event pairs, 44 based on Foata normal form. 4/184 useless extension candidates. Maximal degree in co-relation 672. Up to 133 conditions per place. [2023-01-27 18:51:32,958 INFO L137 encePairwiseOnDemand]: 1827/1832 looper letters, 64 selfloop transitions, 4 changer transitions 12/80 dead transitions. [2023-01-27 18:51:32,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 80 transitions, 759 flow [2023-01-27 18:51:32,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 18:51:32,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 18:51:32,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3976 transitions. [2023-01-27 18:51:32,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.434061135371179 [2023-01-27 18:51:32,963 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3976 transitions. [2023-01-27 18:51:32,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3976 transitions. [2023-01-27 18:51:32,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:51:32,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3976 transitions. [2023-01-27 18:51:32,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 795.2) internal successors, (3976), 5 states have internal predecessors, (3976), 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) [2023-01-27 18:51:32,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1832.0) internal successors, (10992), 6 states have internal predecessors, (10992), 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) [2023-01-27 18:51:32,972 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1832.0) internal successors, (10992), 6 states have internal predecessors, (10992), 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) [2023-01-27 18:51:32,972 INFO L175 Difference]: Start difference. First operand has 93 places, 72 transitions, 569 flow. Second operand 5 states and 3976 transitions. [2023-01-27 18:51:32,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 80 transitions, 759 flow [2023-01-27 18:51:32,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 80 transitions, 675 flow, removed 35 selfloop flow, removed 6 redundant places. [2023-01-27 18:51:32,977 INFO L231 Difference]: Finished difference. Result has 92 places, 68 transitions, 475 flow [2023-01-27 18:51:32,977 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1832, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=475, PETRI_PLACES=92, PETRI_TRANSITIONS=68} [2023-01-27 18:51:32,977 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 56 predicate places. [2023-01-27 18:51:32,977 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 68 transitions, 475 flow [2023-01-27 18:51:32,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 788.3333333333334) internal successors, (4730), 6 states have internal predecessors, (4730), 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) [2023-01-27 18:51:32,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:51:32,978 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:51:32,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-01-27 18:51:33,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:51:33,196 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:51:33,196 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:51:33,197 INFO L85 PathProgramCache]: Analyzing trace with hash 661977512, now seen corresponding path program 3 times [2023-01-27 18:51:33,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:51:33,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667309474] [2023-01-27 18:51:33,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:51:33,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:51:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:51:35,066 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:51:35,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:51:35,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667309474] [2023-01-27 18:51:35,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667309474] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:51:35,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662022391] [2023-01-27 18:51:35,066 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-27 18:51:35,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:51:35,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:51:35,067 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) [2023-01-27 18:51:35,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-27 18:51:36,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-01-27 18:51:36,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:51:36,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 496 conjunts are in the unsatisfiable core [2023-01-27 18:51:36,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:51:36,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:51:36,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:51:36,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:51:36,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:51:36,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:51:36,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:51:36,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:51:36,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:51:57,299 WARN L222 SmtUtils]: Spent 20.57s on a formula simplification. DAG size of input: 2564 DAG size of output: 522 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-27 18:51:57,301 INFO L321 Elim1Store]: treesize reduction 18916, result has 4.9 percent of original size [2023-01-27 18:51:57,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 28 select indices, 28 select index equivalence classes, 33 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 397 case distinctions, treesize of input 1034 treesize of output 1881 [2023-01-27 18:53:09,025 INFO L321 Elim1Store]: treesize reduction 870, result has 28.7 percent of original size [2023-01-27 18:53:09,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 36 disjoint index pairs (out of 105 index pairs), introduced 16 new quantified variables, introduced 93 case distinctions, treesize of input 801 treesize of output 1040 [2023-01-27 18:53:09,310 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-01-27 18:53:09,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 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 [2023-01-27 18:53:09,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 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 [2023-01-27 18:53:09,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 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 [2023-01-27 18:53:09,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 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 [2023-01-27 18:56:25,736 WARN L222 SmtUtils]: Spent 12.20s on a formula simplification. DAG size of input: 658 DAG size of output: 772 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-01-27 18:56:28,070 WARN L238 SmtUtils]: Removed 1 from assertion stack [2023-01-27 18:56:28,074 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-27 18:56:28,077 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 [2023-01-27 18:56:28,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-01-27 18:56:28,090 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 [2023-01-27 18:56:28,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:56:28,289 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 36 with TraceHistMax 22,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-4-2-4-7-10-5-19-4-24-3-23-3-16-3-12-3-12-2-7-2-8-2-6-2-5-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 13 xjuncts wrt. a ∧-63-7-5-19-5-24-3-23-3-17-3-12-3-8-2-8-3-8-2-8-2-8-2-2-1 context. [2023-01-27 18:56:28,291 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-27 18:56:28,291 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-27 18:56:28,291 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-27 18:56:28,291 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-01-27 18:56:28,291 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1] [2023-01-27 18:56:28,296 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 18:56:28,296 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 18:56:28,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 06:56:28 BasicIcfg [2023-01-27 18:56:28,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 18:56:28,298 INFO L158 Benchmark]: Toolchain (without parser) took 830243.12ms. Allocated memory was 346.0MB in the beginning and 1.3GB in the end (delta: 918.6MB). Free memory was 276.6MB in the beginning and 1.1GB in the end (delta: -810.0MB). Peak memory consumption was 822.9MB. Max. memory is 16.0GB. [2023-01-27 18:56:28,298 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 346.0MB. Free memory is still 295.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:56:28,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3104.80ms. Allocated memory was 346.0MB in the beginning and 503.3MB in the end (delta: 157.3MB). Free memory was 276.2MB in the beginning and 376.8MB in the end (delta: -100.5MB). Peak memory consumption was 109.1MB. Max. memory is 16.0GB. [2023-01-27 18:56:28,298 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.91ms. Allocated memory is still 503.3MB. Free memory was 376.8MB in the beginning and 365.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 18:56:28,299 INFO L158 Benchmark]: Boogie Preprocessor took 40.80ms. Allocated memory is still 503.3MB. Free memory was 365.2MB in the beginning and 358.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-01-27 18:56:28,299 INFO L158 Benchmark]: RCFGBuilder took 1093.19ms. Allocated memory is still 503.3MB. Free memory was 358.9MB in the beginning and 406.0MB in the end (delta: -47.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.0GB. [2023-01-27 18:56:28,299 INFO L158 Benchmark]: TraceAbstraction took 825891.49ms. Allocated memory was 503.3MB in the beginning and 1.3GB in the end (delta: 761.3MB). Free memory was 405.0MB in the beginning and 1.1GB in the end (delta: -681.6MB). Peak memory consumption was 792.3MB. Max. memory is 16.0GB. [2023-01-27 18:56:28,303 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 346.0MB. Free memory is still 295.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 3104.80ms. Allocated memory was 346.0MB in the beginning and 503.3MB in the end (delta: 157.3MB). Free memory was 276.2MB in the beginning and 376.8MB in the end (delta: -100.5MB). Peak memory consumption was 109.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 107.91ms. Allocated memory is still 503.3MB. Free memory was 376.8MB in the beginning and 365.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Preprocessor took 40.80ms. Allocated memory is still 503.3MB. Free memory was 365.2MB in the beginning and 358.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * RCFGBuilder took 1093.19ms. Allocated memory is still 503.3MB. Free memory was 358.9MB in the beginning and 406.0MB in the end (delta: -47.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.0GB. * TraceAbstraction took 825891.49ms. Allocated memory was 503.3MB in the beginning and 1.3GB in the end (delta: 761.3MB). Free memory was 405.0MB in the beginning and 1.1GB in the end (delta: -681.6MB). Peak memory consumption was 792.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 448.9s, 816 PlacesBefore, 36 PlacesAfterwards, 867 TransitionsBefore, 50 TransitionsAfterwards, 38404 CoEnabledTransitionPairs, 11 FixpointIterations, 561 TrivialSequentialCompositions, 247 ConcurrentSequentialCompositions, 81 TrivialYvCompositions, 29 ConcurrentYvCompositions, 37 ChoiceCompositions, 955 TotalNumberOfCompositions, 29151 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26720, independent: 26595, independent conditional: 0, independent unconditional: 26595, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 19621, independent: 19580, independent conditional: 0, independent unconditional: 19580, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 26720, independent: 7015, independent conditional: 0, independent unconditional: 7015, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 19621, unknown conditional: 0, unknown unconditional: 19621] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, 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 CegarLoopForPetriNet was analyzing trace of length 36 with TraceHistMax 22,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-4-2-4-7-10-5-19-4-24-3-23-3-16-3-12-3-12-2-7-2-8-2-6-2-5-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 13 xjuncts wrt. a ∧-63-7-5-19-5-24-3-23-3-17-3-12-3-8-2-8-3-8-2-8-2-8-2-2-1 context. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 36 with TraceHistMax 22,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-4-2-4-7-10-5-19-4-24-3-23-3-16-3-12-3-12-2-7-2-8-2-6-2-5-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 13 xjuncts wrt. a ∧-63-7-5-19-5-24-3-23-3-17-3-12-3-8-2-8-3-8-2-8-2-8-2-2-1 context. - 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 CegarLoopForPetriNet was analyzing trace of length 36 with TraceHistMax 22,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-4-2-4-7-10-5-19-4-24-3-23-3-16-3-12-3-12-2-7-2-8-2-6-2-5-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 13 xjuncts wrt. a ∧-63-7-5-19-5-24-3-23-3-17-3-12-3-8-2-8-3-8-2-8-2-8-2-2-1 context. - 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 CegarLoopForPetriNet was analyzing trace of length 36 with TraceHistMax 22,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-4-2-4-7-10-5-19-4-24-3-23-3-16-3-12-3-12-2-7-2-8-2-6-2-5-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 13 xjuncts wrt. a ∧-63-7-5-19-5-24-3-23-3-17-3-12-3-8-2-8-3-8-2-8-2-8-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 1070 locations, 5 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: 825.8s, OverallIterations: 9, TraceHistogramMax: 22, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 37.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 449.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 10.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 9.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 145 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1854 IncrementalHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 145 mSolverCounterUnsat, 0 mSDtfsCounter, 1854 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 27.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=569occurred in iteration=7, 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: 0.4s SsaConstructionTime, 8.0s SatisfiabilityAnalysisTime, 32.6s InterpolantComputationTime, 251 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 283 ConstructedInterpolants, 0 QuantifiedInterpolants, 2234 SizeOfPredicates, 159 NumberOfNonLiveVariables, 7019 ConjunctsInSsa, 388 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 318/834 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