/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:52:53,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:52:53,228 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-10 11:52:53,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:52:53,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:52:53,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:52:53,256 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:52:53,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:52:53,257 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:52:53,260 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:52:53,260 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:52:53,261 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:52:53,261 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:52:53,262 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:52:53,262 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:52:53,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:52:53,263 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:52:53,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:52:53,263 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:52:53,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:52:53,263 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:52:53,264 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:52:53,264 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:52:53,264 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:52:53,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:52:53,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:52:53,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:52:53,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:52:53,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:52:53,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:52:53,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:52:53,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:52:53,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:52:53,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:52:53,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:52:53,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:52:53,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:52:53,484 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:52:53,484 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:52:53,485 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2023-11-10 11:52:54,609 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:52:55,018 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:52:55,019 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2023-11-10 11:52:55,050 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a0d2ab51/73ebea7e89134a47bc05ad7596747401/FLAG3576241e5 [2023-11-10 11:52:55,061 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a0d2ab51/73ebea7e89134a47bc05ad7596747401 [2023-11-10 11:52:55,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:52:55,064 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:52:55,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:52:55,064 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:52:55,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:52:55,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:52:55" (1/1) ... [2023-11-10 11:52:55,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7515b97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:55, skipping insertion in model container [2023-11-10 11:52:55,070 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:52:55" (1/1) ... [2023-11-10 11:52:55,140 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:52:55,452 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i[5469,5482] [2023-11-10 11:52:59,730 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-10 11:53:00,115 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:53:00,115 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:53:00,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:53:00,200 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:53:00,209 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i[5469,5482] [2023-11-10 11:53:00,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2023-11-10 11:53:00,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2023-11-10 11:53:00,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2023-11-10 11:53:00,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] [2023-11-10 11:53:00,351 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-10 11:53:00,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-10 11:53:00,391 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:53:00,392 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:53:00,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:53:00,798 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:53:00,798 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:53:00,798 WARN L672 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:53:00,798 WARN L672 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:53:00,798 WARN L672 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:53:00,798 WARN L672 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:53:00,798 WARN L672 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:53:00,803 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:53:00,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:53:00 WrapperNode [2023-11-10 11:53:00,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:53:00,805 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:53:00,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:53:00,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:53:00,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:53:00" (1/1) ... [2023-11-10 11:53:00,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:53:00" (1/1) ... [2023-11-10 11:53:00,941 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 53, statements flattened = 709 [2023-11-10 11:53:00,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:53:00,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:53:00,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:53:00,942 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:53:00,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:53:00" (1/1) ... [2023-11-10 11:53:00,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:53:00" (1/1) ... [2023-11-10 11:53:00,954 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:53:00" (1/1) ... [2023-11-10 11:53:00,954 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:53:00" (1/1) ... [2023-11-10 11:53:00,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:53:00" (1/1) ... [2023-11-10 11:53:00,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:53:00" (1/1) ... [2023-11-10 11:53:00,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:53:00" (1/1) ... [2023-11-10 11:53:00,993 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:53:00" (1/1) ... [2023-11-10 11:53:01,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:53:01,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:53:01,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:53:01,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:53:01,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:53:00" (1/1) ... [2023-11-10 11:53:01,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:53:01,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:01,054 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) [2023-11-10 11:53:01,075 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 [2023-11-10 11:53:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-10 11:53:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-10 11:53:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:53:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-10 11:53:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:53:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:53:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2023-11-10 11:53:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2023-11-10 11:53:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-10 11:53:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:53:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-10 11:53:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:53:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:53:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-10 11:53:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-11-10 11:53:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-11-10 11:53:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:53:01,089 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 11:53:01,410 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:53:01,412 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:53:01,961 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:53:01,971 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:53:01,971 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2023-11-10 11:53:01,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:53:01 BoogieIcfgContainer [2023-11-10 11:53:01,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:53:01,977 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:53:01,977 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:53:01,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:53:01,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:52:55" (1/3) ... [2023-11-10 11:53:01,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675cb633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:53:01, skipping insertion in model container [2023-11-10 11:53:01,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:53:00" (2/3) ... [2023-11-10 11:53:01,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675cb633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:53:01, skipping insertion in model container [2023-11-10 11:53:01,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:53:01" (3/3) ... [2023-11-10 11:53:01,981 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2023-11-10 11:53:01,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:53:01,992 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-10 11:53:01,992 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:53:02,103 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-10 11:53:02,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 821 places, 868 transitions, 1750 flow [2023-11-10 11:53:02,286 INFO L124 PetriNetUnfolderBase]: 54/866 cut-off events. [2023-11-10 11:53:02,286 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-10 11:53:02,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 866 events. 54/866 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1229 event pairs, 0 based on Foata normal form. 0/809 useless extension candidates. Maximal degree in co-relation 793. Up to 9 conditions per place. [2023-11-10 11:53:02,293 INFO L82 GeneralOperation]: Start removeDead. Operand has 821 places, 868 transitions, 1750 flow [2023-11-10 11:53:02,301 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 810 places, 857 transitions, 1723 flow [2023-11-10 11:53:02,307 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:53:02,311 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=LoopHeads, 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;@30f383, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:53:02,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-10 11:53:02,345 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:53:02,345 INFO L124 PetriNetUnfolderBase]: 10/360 cut-off events. [2023-11-10 11:53:02,345 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:53:02,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:02,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:02,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:02,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:02,350 INFO L85 PathProgramCache]: Analyzing trace with hash 305341754, now seen corresponding path program 1 times [2023-11-10 11:53:02,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:02,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890200227] [2023-11-10 11:53:02,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:02,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:03,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:03,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:03,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890200227] [2023-11-10 11:53:03,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890200227] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:03,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:53:03,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-10 11:53:03,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933316687] [2023-11-10 11:53:03,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:03,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-10 11:53:03,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:03,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-10 11:53:03,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-10 11:53:03,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 794 out of 868 [2023-11-10 11:53:03,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 810 places, 857 transitions, 1723 flow. Second operand has 9 states, 9 states have (on average 796.4444444444445) internal successors, (7168), 9 states have internal predecessors, (7168), 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) [2023-11-10 11:53:03,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:03,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 794 of 868 [2023-11-10 11:53:03,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:03,546 INFO L124 PetriNetUnfolderBase]: 22/819 cut-off events. [2023-11-10 11:53:03,546 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2023-11-10 11:53:03,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 866 conditions, 819 events. 22/819 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1088 event pairs, 0 based on Foata normal form. 21/814 useless extension candidates. Maximal degree in co-relation 795. Up to 12 conditions per place. [2023-11-10 11:53:03,552 INFO L140 encePairwiseOnDemand]: 819/868 looper letters, 21 selfloop transitions, 17 changer transitions 1/819 dead transitions. [2023-11-10 11:53:03,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 821 places, 819 transitions, 1723 flow [2023-11-10 11:53:03,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-10 11:53:03,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-10 11:53:03,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 14362 transitions. [2023-11-10 11:53:03,585 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9192268305171531 [2023-11-10 11:53:03,587 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 14362 transitions. [2023-11-10 11:53:03,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 14362 transitions. [2023-11-10 11:53:03,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:03,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 14362 transitions. [2023-11-10 11:53:03,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 797.8888888888889) internal successors, (14362), 18 states have internal predecessors, (14362), 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) [2023-11-10 11:53:03,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 868.0) internal successors, (16492), 19 states have internal predecessors, (16492), 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) [2023-11-10 11:53:03,661 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 868.0) internal successors, (16492), 19 states have internal predecessors, (16492), 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) [2023-11-10 11:53:03,663 INFO L175 Difference]: Start difference. First operand has 810 places, 857 transitions, 1723 flow. Second operand 18 states and 14362 transitions. [2023-11-10 11:53:03,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 821 places, 819 transitions, 1723 flow [2023-11-10 11:53:03,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 818 places, 819 transitions, 1718 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-10 11:53:03,684 INFO L231 Difference]: Finished difference. Result has 818 places, 818 transitions, 1674 flow [2023-11-10 11:53:03,687 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1642, PETRI_DIFFERENCE_MINUEND_PLACES=801, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=802, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1674, PETRI_PLACES=818, PETRI_TRANSITIONS=818} [2023-11-10 11:53:03,690 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 8 predicate places. [2023-11-10 11:53:03,690 INFO L495 AbstractCegarLoop]: Abstraction has has 818 places, 818 transitions, 1674 flow [2023-11-10 11:53:03,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 796.4444444444445) internal successors, (7168), 9 states have internal predecessors, (7168), 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) [2023-11-10 11:53:03,694 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:03,695 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:03,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:53:03,696 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:03,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:03,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1486667653, now seen corresponding path program 1 times [2023-11-10 11:53:03,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:03,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371537036] [2023-11-10 11:53:03,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:03,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:04,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:04,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:04,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371537036] [2023-11-10 11:53:04,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371537036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:04,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:53:04,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:53:04,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152817041] [2023-11-10 11:53:04,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:04,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:53:04,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:04,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:53:04,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:53:04,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 784 out of 868 [2023-11-10 11:53:04,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 818 places, 818 transitions, 1674 flow. Second operand has 6 states, 6 states have (on average 788.6666666666666) internal successors, (4732), 6 states have internal predecessors, (4732), 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) [2023-11-10 11:53:04,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:04,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 784 of 868 [2023-11-10 11:53:04,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:04,702 INFO L124 PetriNetUnfolderBase]: 37/1025 cut-off events. [2023-11-10 11:53:04,703 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-10 11:53:04,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1122 conditions, 1025 events. 37/1025 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2163 event pairs, 8 based on Foata normal form. 0/987 useless extension candidates. Maximal degree in co-relation 634. Up to 59 conditions per place. [2023-11-10 11:53:04,707 INFO L140 encePairwiseOnDemand]: 856/868 looper letters, 43 selfloop transitions, 11 changer transitions 0/823 dead transitions. [2023-11-10 11:53:04,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 820 places, 823 transitions, 1792 flow [2023-11-10 11:53:04,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-10 11:53:04,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-10 11:53:04,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4759 transitions. [2023-11-10 11:53:04,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9137864823348695 [2023-11-10 11:53:04,714 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4759 transitions. [2023-11-10 11:53:04,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4759 transitions. [2023-11-10 11:53:04,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:04,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4759 transitions. [2023-11-10 11:53:04,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 793.1666666666666) internal successors, (4759), 6 states have internal predecessors, (4759), 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) [2023-11-10 11:53:04,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 868.0) internal successors, (6076), 7 states have internal predecessors, (6076), 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) [2023-11-10 11:53:04,730 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 868.0) internal successors, (6076), 7 states have internal predecessors, (6076), 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) [2023-11-10 11:53:04,730 INFO L175 Difference]: Start difference. First operand has 818 places, 818 transitions, 1674 flow. Second operand 6 states and 4759 transitions. [2023-11-10 11:53:04,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 820 places, 823 transitions, 1792 flow [2023-11-10 11:53:04,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 803 places, 823 transitions, 1758 flow, removed 0 selfloop flow, removed 17 redundant places. [2023-11-10 11:53:04,741 INFO L231 Difference]: Finished difference. Result has 804 places, 820 transitions, 1681 flow [2023-11-10 11:53:04,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1636, PETRI_DIFFERENCE_MINUEND_PLACES=798, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=816, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=805, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1681, PETRI_PLACES=804, PETRI_TRANSITIONS=820} [2023-11-10 11:53:04,742 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, -6 predicate places. [2023-11-10 11:53:04,743 INFO L495 AbstractCegarLoop]: Abstraction has has 804 places, 820 transitions, 1681 flow [2023-11-10 11:53:04,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 788.6666666666666) internal successors, (4732), 6 states have internal predecessors, (4732), 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) [2023-11-10 11:53:04,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:04,744 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:04,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:53:04,744 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:04,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:04,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1954365019, now seen corresponding path program 1 times [2023-11-10 11:53:04,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:04,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391658495] [2023-11-10 11:53:04,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:04,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:05,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:05,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:05,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391658495] [2023-11-10 11:53:05,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391658495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:05,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:53:05,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:53:05,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721885726] [2023-11-10 11:53:05,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:05,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:53:05,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:05,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:53:05,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:53:05,374 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 790 out of 868 [2023-11-10 11:53:05,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 804 places, 820 transitions, 1681 flow. Second operand has 6 states, 6 states have (on average 794.8333333333334) internal successors, (4769), 6 states have internal predecessors, (4769), 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) [2023-11-10 11:53:05,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:05,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 790 of 868 [2023-11-10 11:53:05,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:05,656 INFO L124 PetriNetUnfolderBase]: 76/1298 cut-off events. [2023-11-10 11:53:05,656 INFO L125 PetriNetUnfolderBase]: For 43/45 co-relation queries the response was YES. [2023-11-10 11:53:05,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1483 conditions, 1298 events. 76/1298 cut-off events. For 43/45 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4749 event pairs, 15 based on Foata normal form. 0/1235 useless extension candidates. Maximal degree in co-relation 1009. Up to 88 conditions per place. [2023-11-10 11:53:05,662 INFO L140 encePairwiseOnDemand]: 857/868 looper letters, 54 selfloop transitions, 19 changer transitions 3/849 dead transitions. [2023-11-10 11:53:05,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 813 places, 849 transitions, 1899 flow [2023-11-10 11:53:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:53:05,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:53:05,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 7974 transitions. [2023-11-10 11:53:05,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9186635944700461 [2023-11-10 11:53:05,673 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 7974 transitions. [2023-11-10 11:53:05,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 7974 transitions. [2023-11-10 11:53:05,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:05,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 7974 transitions. [2023-11-10 11:53:05,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 797.4) internal successors, (7974), 10 states have internal predecessors, (7974), 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) [2023-11-10 11:53:05,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 868.0) internal successors, (9548), 11 states have internal predecessors, (9548), 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) [2023-11-10 11:53:05,732 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 868.0) internal successors, (9548), 11 states have internal predecessors, (9548), 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) [2023-11-10 11:53:05,732 INFO L175 Difference]: Start difference. First operand has 804 places, 820 transitions, 1681 flow. Second operand 10 states and 7974 transitions. [2023-11-10 11:53:05,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 813 places, 849 transitions, 1899 flow [2023-11-10 11:53:05,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 809 places, 849 transitions, 1884 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-10 11:53:05,743 INFO L231 Difference]: Finished difference. Result has 813 places, 837 transitions, 1775 flow [2023-11-10 11:53:05,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1666, PETRI_DIFFERENCE_MINUEND_PLACES=800, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=820, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=810, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1775, PETRI_PLACES=813, PETRI_TRANSITIONS=837} [2023-11-10 11:53:05,745 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 3 predicate places. [2023-11-10 11:53:05,745 INFO L495 AbstractCegarLoop]: Abstraction has has 813 places, 837 transitions, 1775 flow [2023-11-10 11:53:05,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 794.8333333333334) internal successors, (4769), 6 states have internal predecessors, (4769), 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) [2023-11-10 11:53:05,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:05,746 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:05,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:53:05,747 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:05,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:05,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1773936712, now seen corresponding path program 1 times [2023-11-10 11:53:05,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:05,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191813427] [2023-11-10 11:53:05,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:05,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:06,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:06,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:06,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191813427] [2023-11-10 11:53:06,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191813427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:06,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:53:06,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-10 11:53:06,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359795525] [2023-11-10 11:53:06,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:06,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-10 11:53:06,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:06,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-10 11:53:06,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-10 11:53:06,208 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 804 out of 868 [2023-11-10 11:53:06,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 813 places, 837 transitions, 1775 flow. Second operand has 5 states, 5 states have (on average 806.0) internal successors, (4030), 5 states have internal predecessors, (4030), 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) [2023-11-10 11:53:06,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:06,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 804 of 868 [2023-11-10 11:53:06,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:06,392 INFO L124 PetriNetUnfolderBase]: 37/1131 cut-off events. [2023-11-10 11:53:06,392 INFO L125 PetriNetUnfolderBase]: For 22/25 co-relation queries the response was YES. [2023-11-10 11:53:06,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1253 conditions, 1131 events. 37/1131 cut-off events. For 22/25 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3086 event pairs, 1 based on Foata normal form. 0/1090 useless extension candidates. Maximal degree in co-relation 1216. Up to 31 conditions per place. [2023-11-10 11:53:06,396 INFO L140 encePairwiseOnDemand]: 861/868 looper letters, 28 selfloop transitions, 6 changer transitions 0/841 dead transitions. [2023-11-10 11:53:06,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 817 places, 841 transitions, 1851 flow [2023-11-10 11:53:06,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-10 11:53:06,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-10 11:53:06,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4054 transitions. [2023-11-10 11:53:06,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9341013824884793 [2023-11-10 11:53:06,402 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 4054 transitions. [2023-11-10 11:53:06,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 4054 transitions. [2023-11-10 11:53:06,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:06,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 4054 transitions. [2023-11-10 11:53:06,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 810.8) internal successors, (4054), 5 states have internal predecessors, (4054), 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) [2023-11-10 11:53:06,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 868.0) internal successors, (5208), 6 states have internal predecessors, (5208), 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) [2023-11-10 11:53:06,415 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 868.0) internal successors, (5208), 6 states have internal predecessors, (5208), 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) [2023-11-10 11:53:06,415 INFO L175 Difference]: Start difference. First operand has 813 places, 837 transitions, 1775 flow. Second operand 5 states and 4054 transitions. [2023-11-10 11:53:06,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 817 places, 841 transitions, 1851 flow [2023-11-10 11:53:06,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 817 places, 841 transitions, 1851 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-10 11:53:06,427 INFO L231 Difference]: Finished difference. Result has 818 places, 838 transitions, 1795 flow [2023-11-10 11:53:06,428 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1775, PETRI_DIFFERENCE_MINUEND_PLACES=813, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=837, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=831, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1795, PETRI_PLACES=818, PETRI_TRANSITIONS=838} [2023-11-10 11:53:06,429 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 8 predicate places. [2023-11-10 11:53:06,429 INFO L495 AbstractCegarLoop]: Abstraction has has 818 places, 838 transitions, 1795 flow [2023-11-10 11:53:06,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 806.0) internal successors, (4030), 5 states have internal predecessors, (4030), 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) [2023-11-10 11:53:06,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:06,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:06,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 11:53:06,430 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:06,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:06,431 INFO L85 PathProgramCache]: Analyzing trace with hash -714281003, now seen corresponding path program 1 times [2023-11-10 11:53:06,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:06,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580536904] [2023-11-10 11:53:06,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:06,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:06,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:06,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:06,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580536904] [2023-11-10 11:53:06,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580536904] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:06,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961346071] [2023-11-10 11:53:06,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:06,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:06,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:06,984 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) [2023-11-10 11:53:07,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-10 11:53:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:07,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-10 11:53:07,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:07,643 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-10 11:53:07,697 INFO L351 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 [2023-11-10 11:53:07,715 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:07,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-10 11:53:07,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:07,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961346071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:07,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:07,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2023-11-10 11:53:07,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645285798] [2023-11-10 11:53:07,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:07,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:53:07,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:07,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:53:07,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-10 11:53:07,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 768 out of 868 [2023-11-10 11:53:07,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 818 places, 838 transitions, 1795 flow. Second operand has 7 states, 7 states have (on average 774.1428571428571) internal successors, (5419), 7 states have internal predecessors, (5419), 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) [2023-11-10 11:53:07,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:07,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 768 of 868 [2023-11-10 11:53:07,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:08,491 INFO L124 PetriNetUnfolderBase]: 533/3373 cut-off events. [2023-11-10 11:53:08,492 INFO L125 PetriNetUnfolderBase]: For 369/373 co-relation queries the response was YES. [2023-11-10 11:53:08,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4953 conditions, 3373 events. 533/3373 cut-off events. For 369/373 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 22245 event pairs, 188 based on Foata normal form. 0/3202 useless extension candidates. Maximal degree in co-relation 4851. Up to 351 conditions per place. [2023-11-10 11:53:08,507 INFO L140 encePairwiseOnDemand]: 856/868 looper letters, 79 selfloop transitions, 15 changer transitions 32/891 dead transitions. [2023-11-10 11:53:08,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 827 places, 891 transitions, 2201 flow [2023-11-10 11:53:08,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:53:08,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:53:08,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 7800 transitions. [2023-11-10 11:53:08,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8986175115207373 [2023-11-10 11:53:08,518 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 7800 transitions. [2023-11-10 11:53:08,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 7800 transitions. [2023-11-10 11:53:08,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:08,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 7800 transitions. [2023-11-10 11:53:08,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 780.0) internal successors, (7800), 10 states have internal predecessors, (7800), 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) [2023-11-10 11:53:08,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 868.0) internal successors, (9548), 11 states have internal predecessors, (9548), 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) [2023-11-10 11:53:08,540 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 868.0) internal successors, (9548), 11 states have internal predecessors, (9548), 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) [2023-11-10 11:53:08,540 INFO L175 Difference]: Start difference. First operand has 818 places, 838 transitions, 1795 flow. Second operand 10 states and 7800 transitions. [2023-11-10 11:53:08,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 827 places, 891 transitions, 2201 flow [2023-11-10 11:53:08,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 824 places, 891 transitions, 2191 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-10 11:53:08,555 INFO L231 Difference]: Finished difference. Result has 831 places, 846 transitions, 1897 flow [2023-11-10 11:53:08,556 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1785, PETRI_DIFFERENCE_MINUEND_PLACES=815, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=838, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=823, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1897, PETRI_PLACES=831, PETRI_TRANSITIONS=846} [2023-11-10 11:53:08,557 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 21 predicate places. [2023-11-10 11:53:08,557 INFO L495 AbstractCegarLoop]: Abstraction has has 831 places, 846 transitions, 1897 flow [2023-11-10 11:53:08,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 774.1428571428571) internal successors, (5419), 7 states have internal predecessors, (5419), 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) [2023-11-10 11:53:08,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:08,559 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:08,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-10 11:53:08,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:08,769 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:08,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:08,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1644961435, now seen corresponding path program 1 times [2023-11-10 11:53:08,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:08,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229089158] [2023-11-10 11:53:08,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:08,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:09,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:09,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:09,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229089158] [2023-11-10 11:53:09,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229089158] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:09,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269290954] [2023-11-10 11:53:09,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:09,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:09,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:09,209 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) [2023-11-10 11:53:09,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-10 11:53:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:09,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-10 11:53:09,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:09,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-10 11:53:09,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:09,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269290954] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-10 11:53:09,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-10 11:53:09,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-10 11:53:09,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101909156] [2023-11-10 11:53:09,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-10 11:53:09,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:53:09,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:09,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:53:09,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-10 11:53:09,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 804 out of 868 [2023-11-10 11:53:09,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 831 places, 846 transitions, 1897 flow. Second operand has 12 states, 12 states have (on average 806.5) internal successors, (9678), 12 states have internal predecessors, (9678), 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) [2023-11-10 11:53:09,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:09,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 804 of 868 [2023-11-10 11:53:09,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:10,201 INFO L124 PetriNetUnfolderBase]: 44/1225 cut-off events. [2023-11-10 11:53:10,201 INFO L125 PetriNetUnfolderBase]: For 242/274 co-relation queries the response was YES. [2023-11-10 11:53:10,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1653 conditions, 1225 events. 44/1225 cut-off events. For 242/274 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3734 event pairs, 2 based on Foata normal form. 3/1193 useless extension candidates. Maximal degree in co-relation 1594. Up to 39 conditions per place. [2023-11-10 11:53:10,208 INFO L140 encePairwiseOnDemand]: 852/868 looper letters, 29 selfloop transitions, 18 changer transitions 1/860 dead transitions. [2023-11-10 11:53:10,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 839 places, 860 transitions, 2019 flow [2023-11-10 11:53:10,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-10 11:53:10,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-10 11:53:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 9700 transitions. [2023-11-10 11:53:10,225 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9312596006144394 [2023-11-10 11:53:10,225 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 9700 transitions. [2023-11-10 11:53:10,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 9700 transitions. [2023-11-10 11:53:10,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:10,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 9700 transitions. [2023-11-10 11:53:10,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 808.3333333333334) internal successors, (9700), 12 states have internal predecessors, (9700), 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) [2023-11-10 11:53:10,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 868.0) internal successors, (11284), 13 states have internal predecessors, (11284), 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) [2023-11-10 11:53:10,318 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 868.0) internal successors, (11284), 13 states have internal predecessors, (11284), 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) [2023-11-10 11:53:10,318 INFO L175 Difference]: Start difference. First operand has 831 places, 846 transitions, 1897 flow. Second operand 12 states and 9700 transitions. [2023-11-10 11:53:10,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 839 places, 860 transitions, 2019 flow [2023-11-10 11:53:10,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 834 places, 860 transitions, 1993 flow, removed 8 selfloop flow, removed 5 redundant places. [2023-11-10 11:53:10,332 INFO L231 Difference]: Finished difference. Result has 841 places, 848 transitions, 1945 flow [2023-11-10 11:53:10,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1863, PETRI_DIFFERENCE_MINUEND_PLACES=823, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=844, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=829, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1945, PETRI_PLACES=841, PETRI_TRANSITIONS=848} [2023-11-10 11:53:10,348 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 31 predicate places. [2023-11-10 11:53:10,348 INFO L495 AbstractCegarLoop]: Abstraction has has 841 places, 848 transitions, 1945 flow [2023-11-10 11:53:10,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 806.5) internal successors, (9678), 12 states have internal predecessors, (9678), 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) [2023-11-10 11:53:10,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:10,351 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:10,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:10,551 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,SelfDestructingSolverStorable5 [2023-11-10 11:53:10,552 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:10,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:10,553 INFO L85 PathProgramCache]: Analyzing trace with hash -645795554, now seen corresponding path program 2 times [2023-11-10 11:53:10,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:10,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900696341] [2023-11-10 11:53:10,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:10,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:11,180 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:11,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:11,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900696341] [2023-11-10 11:53:11,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900696341] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:11,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679895685] [2023-11-10 11:53:11,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-10 11:53:11,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:11,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:11,184 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) [2023-11-10 11:53:11,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-10 11:53:11,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-10 11:53:11,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:53:11,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 80 conjunts are in the unsatisfiable core [2023-11-10 11:53:11,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:11,886 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:11,887 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2023-11-10 11:53:11,924 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:11,925 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:11,963 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:11,963 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:11,999 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:11,999 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:12,036 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:12,037 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:12,069 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:12,070 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:12,105 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:12,106 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:12,140 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:12,140 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:12,174 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:12,174 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:12,208 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:12,208 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:12,240 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:12,241 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:12,272 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:12,272 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:12,303 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:12,304 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:12,345 INFO L322 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2023-11-10 11:53:12,345 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2023-11-10 11:53:12,499 INFO L322 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2023-11-10 11:53:12,500 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 84 [2023-11-10 11:53:12,888 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:12,889 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:12,943 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:12,943 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:12,972 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:12,972 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:13,006 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:53:13,006 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 28 [2023-11-10 11:53:13,039 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:13,039 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:13,073 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:53:13,073 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 28 [2023-11-10 11:53:13,162 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:13,162 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 20 [2023-11-10 11:53:13,262 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:53:13,263 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 28 [2023-11-10 11:53:13,851 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 18 treesize of output 13 [2023-11-10 11:53:13,908 INFO L322 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-11-10 11:53:13,909 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2023-11-10 11:53:13,956 INFO L322 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-10 11:53:13,957 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 30 [2023-11-10 11:53:14,150 INFO L351 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 [2023-11-10 11:53:14,204 INFO L351 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 18 treesize of output 13 [2023-11-10 11:53:14,224 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:14,264 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-10 11:53:14,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:14,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679895685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:14,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:14,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [9] total 22 [2023-11-10 11:53:14,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139570699] [2023-11-10 11:53:14,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:14,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-10 11:53:14,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:14,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-10 11:53:14,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2023-11-10 11:53:14,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 713 out of 868 [2023-11-10 11:53:14,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 841 places, 848 transitions, 1945 flow. Second operand has 15 states, 15 states have (on average 718.9333333333333) internal successors, (10784), 15 states have internal predecessors, (10784), 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) [2023-11-10 11:53:14,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:14,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 713 of 868 [2023-11-10 11:53:14,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:15,395 INFO L124 PetriNetUnfolderBase]: 441/3114 cut-off events. [2023-11-10 11:53:15,395 INFO L125 PetriNetUnfolderBase]: For 1461/1549 co-relation queries the response was YES. [2023-11-10 11:53:15,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5227 conditions, 3114 events. 441/3114 cut-off events. For 1461/1549 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 20267 event pairs, 144 based on Foata normal form. 7/2991 useless extension candidates. Maximal degree in co-relation 5086. Up to 308 conditions per place. [2023-11-10 11:53:15,414 INFO L140 encePairwiseOnDemand]: 850/868 looper letters, 120 selfloop transitions, 22 changer transitions 25/887 dead transitions. [2023-11-10 11:53:15,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 855 places, 887 transitions, 2457 flow [2023-11-10 11:53:15,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-10 11:53:15,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-10 11:53:15,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 10851 transitions. [2023-11-10 11:53:15,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8334101382488479 [2023-11-10 11:53:15,430 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 10851 transitions. [2023-11-10 11:53:15,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 10851 transitions. [2023-11-10 11:53:15,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:15,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 10851 transitions. [2023-11-10 11:53:15,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 723.4) internal successors, (10851), 15 states have internal predecessors, (10851), 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) [2023-11-10 11:53:15,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 868.0) internal successors, (13888), 16 states have internal predecessors, (13888), 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) [2023-11-10 11:53:15,456 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 868.0) internal successors, (13888), 16 states have internal predecessors, (13888), 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) [2023-11-10 11:53:15,456 INFO L175 Difference]: Start difference. First operand has 841 places, 848 transitions, 1945 flow. Second operand 15 states and 10851 transitions. [2023-11-10 11:53:15,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 855 places, 887 transitions, 2457 flow [2023-11-10 11:53:15,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 851 places, 887 transitions, 2437 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-10 11:53:15,472 INFO L231 Difference]: Finished difference. Result has 858 places, 849 transitions, 2037 flow [2023-11-10 11:53:15,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1925, PETRI_DIFFERENCE_MINUEND_PLACES=837, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=848, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=826, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2037, PETRI_PLACES=858, PETRI_TRANSITIONS=849} [2023-11-10 11:53:15,474 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 48 predicate places. [2023-11-10 11:53:15,474 INFO L495 AbstractCegarLoop]: Abstraction has has 858 places, 849 transitions, 2037 flow [2023-11-10 11:53:15,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 718.9333333333333) internal successors, (10784), 15 states have internal predecessors, (10784), 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) [2023-11-10 11:53:15,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:15,478 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:15,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:15,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:15,686 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:15,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:15,687 INFO L85 PathProgramCache]: Analyzing trace with hash -866808073, now seen corresponding path program 1 times [2023-11-10 11:53:15,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:15,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447038782] [2023-11-10 11:53:15,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:15,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:17,436 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-10 11:53:17,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:17,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447038782] [2023-11-10 11:53:17,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447038782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:17,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:53:17,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-10 11:53:17,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32899471] [2023-11-10 11:53:17,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:17,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-10 11:53:17,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:17,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-10 11:53:17,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-11-10 11:53:17,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 868 [2023-11-10 11:53:17,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 858 places, 849 transitions, 2037 flow. Second operand has 16 states, 16 states have (on average 733.375) internal successors, (11734), 16 states have internal predecessors, (11734), 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) [2023-11-10 11:53:17,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:17,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 868 [2023-11-10 11:53:17,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:18,087 INFO L124 PetriNetUnfolderBase]: 112/1497 cut-off events. [2023-11-10 11:53:18,087 INFO L125 PetriNetUnfolderBase]: For 1204/1528 co-relation queries the response was YES. [2023-11-10 11:53:18,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 1497 events. 112/1497 cut-off events. For 1204/1528 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6182 event pairs, 17 based on Foata normal form. 33/1489 useless extension candidates. Maximal degree in co-relation 2601. Up to 64 conditions per place. [2023-11-10 11:53:18,097 INFO L140 encePairwiseOnDemand]: 845/868 looper letters, 88 selfloop transitions, 24 changer transitions 40/866 dead transitions. [2023-11-10 11:53:18,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 867 places, 866 transitions, 2437 flow [2023-11-10 11:53:18,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-10 11:53:18,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-10 11:53:18,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 11039 transitions. [2023-11-10 11:53:18,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8478494623655914 [2023-11-10 11:53:18,106 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 11039 transitions. [2023-11-10 11:53:18,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 11039 transitions. [2023-11-10 11:53:18,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:18,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 11039 transitions. [2023-11-10 11:53:18,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 735.9333333333333) internal successors, (11039), 15 states have internal predecessors, (11039), 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) [2023-11-10 11:53:18,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 868.0) internal successors, (13888), 16 states have internal predecessors, (13888), 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) [2023-11-10 11:53:18,133 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 868.0) internal successors, (13888), 16 states have internal predecessors, (13888), 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) [2023-11-10 11:53:18,133 INFO L175 Difference]: Start difference. First operand has 858 places, 849 transitions, 2037 flow. Second operand 15 states and 11039 transitions. [2023-11-10 11:53:18,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 867 places, 866 transitions, 2437 flow [2023-11-10 11:53:18,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 849 places, 866 transitions, 2337 flow, removed 18 selfloop flow, removed 18 redundant places. [2023-11-10 11:53:18,149 INFO L231 Difference]: Finished difference. Result has 849 places, 819 transitions, 1857 flow [2023-11-10 11:53:18,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1943, PETRI_DIFFERENCE_MINUEND_PLACES=835, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=847, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=823, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1857, PETRI_PLACES=849, PETRI_TRANSITIONS=819} [2023-11-10 11:53:18,150 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 39 predicate places. [2023-11-10 11:53:18,150 INFO L495 AbstractCegarLoop]: Abstraction has has 849 places, 819 transitions, 1857 flow [2023-11-10 11:53:18,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 733.375) internal successors, (11734), 16 states have internal predecessors, (11734), 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) [2023-11-10 11:53:18,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:18,154 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:18,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-10 11:53:18,155 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:18,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:18,155 INFO L85 PathProgramCache]: Analyzing trace with hash -4455971, now seen corresponding path program 1 times [2023-11-10 11:53:18,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:18,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821835102] [2023-11-10 11:53:18,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:18,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:18,645 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:18,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:18,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821835102] [2023-11-10 11:53:18,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821835102] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:18,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108433224] [2023-11-10 11:53:18,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:18,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:18,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:18,663 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) [2023-11-10 11:53:18,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-10 11:53:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:19,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-10 11:53:19,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:19,406 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:19,406 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:19,426 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:19,426 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:19,445 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:19,446 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:19,457 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:53:19,458 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-10 11:53:20,265 INFO L351 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 [2023-11-10 11:53:20,488 INFO L351 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 18 treesize of output 13 [2023-11-10 11:53:20,526 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:20,575 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-10 11:53:20,575 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:20,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108433224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:20,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:20,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [10] total 26 [2023-11-10 11:53:20,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264992428] [2023-11-10 11:53:20,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:20,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-10 11:53:20,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:20,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-10 11:53:20,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2023-11-10 11:53:20,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 697 out of 868 [2023-11-10 11:53:20,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 849 places, 819 transitions, 1857 flow. Second operand has 18 states, 18 states have (on average 702.8888888888889) internal successors, (12652), 18 states have internal predecessors, (12652), 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) [2023-11-10 11:53:20,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:20,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 697 of 868 [2023-11-10 11:53:20,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:23,277 INFO L124 PetriNetUnfolderBase]: 1690/7762 cut-off events. [2023-11-10 11:53:23,278 INFO L125 PetriNetUnfolderBase]: For 4613/4647 co-relation queries the response was YES. [2023-11-10 11:53:23,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13163 conditions, 7762 events. 1690/7762 cut-off events. For 4613/4647 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 67710 event pairs, 653 based on Foata normal form. 20/7313 useless extension candidates. Maximal degree in co-relation 12991. Up to 872 conditions per place. [2023-11-10 11:53:23,314 INFO L140 encePairwiseOnDemand]: 835/868 looper letters, 173 selfloop transitions, 27 changer transitions 120/1005 dead transitions. [2023-11-10 11:53:23,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 873 places, 1005 transitions, 3278 flow [2023-11-10 11:53:23,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-10 11:53:23,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-11-10 11:53:23,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 27503 transitions. [2023-11-10 11:53:23,332 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8124483043837882 [2023-11-10 11:53:23,332 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 27503 transitions. [2023-11-10 11:53:23,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 27503 transitions. [2023-11-10 11:53:23,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:23,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 27503 transitions. [2023-11-10 11:53:23,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 705.2051282051282) internal successors, (27503), 39 states have internal predecessors, (27503), 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) [2023-11-10 11:53:23,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 868.0) internal successors, (34720), 40 states have internal predecessors, (34720), 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) [2023-11-10 11:53:23,389 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 868.0) internal successors, (34720), 40 states have internal predecessors, (34720), 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) [2023-11-10 11:53:23,390 INFO L175 Difference]: Start difference. First operand has 849 places, 819 transitions, 1857 flow. Second operand 39 states and 27503 transitions. [2023-11-10 11:53:23,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 873 places, 1005 transitions, 3278 flow [2023-11-10 11:53:23,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 851 places, 1005 transitions, 2906 flow, removed 67 selfloop flow, removed 22 redundant places. [2023-11-10 11:53:23,412 INFO L231 Difference]: Finished difference. Result has 878 places, 826 transitions, 1997 flow [2023-11-10 11:53:23,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1761, PETRI_DIFFERENCE_MINUEND_PLACES=813, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=796, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=1997, PETRI_PLACES=878, PETRI_TRANSITIONS=826} [2023-11-10 11:53:23,413 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 68 predicate places. [2023-11-10 11:53:23,413 INFO L495 AbstractCegarLoop]: Abstraction has has 878 places, 826 transitions, 1997 flow [2023-11-10 11:53:23,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 702.8888888888889) internal successors, (12652), 18 states have internal predecessors, (12652), 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) [2023-11-10 11:53:23,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:23,415 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:23,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:23,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:23,640 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:23,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:23,640 INFO L85 PathProgramCache]: Analyzing trace with hash -165522593, now seen corresponding path program 2 times [2023-11-10 11:53:23,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:23,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914391314] [2023-11-10 11:53:23,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:23,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:24,132 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:24,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:24,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914391314] [2023-11-10 11:53:24,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914391314] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:24,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613630247] [2023-11-10 11:53:24,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-10 11:53:24,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:24,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:24,133 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) [2023-11-10 11:53:24,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-10 11:53:24,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-10 11:53:24,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:53:24,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-10 11:53:24,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:24,935 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-10 11:53:24,935 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:24,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613630247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:24,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:24,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-11-10 11:53:24,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578034013] [2023-11-10 11:53:24,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:24,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:53:24,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:24,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:53:24,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-10 11:53:24,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 809 out of 868 [2023-11-10 11:53:24,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 878 places, 826 transitions, 1997 flow. Second operand has 8 states, 8 states have (on average 811.25) internal successors, (6490), 8 states have internal predecessors, (6490), 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) [2023-11-10 11:53:24,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:24,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 809 of 868 [2023-11-10 11:53:24,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:25,251 INFO L124 PetriNetUnfolderBase]: 89/1385 cut-off events. [2023-11-10 11:53:25,251 INFO L125 PetriNetUnfolderBase]: For 2046/2208 co-relation queries the response was YES. [2023-11-10 11:53:25,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2320 conditions, 1385 events. 89/1385 cut-off events. For 2046/2208 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4936 event pairs, 37 based on Foata normal form. 2/1332 useless extension candidates. Maximal degree in co-relation 2133. Up to 46 conditions per place. [2023-11-10 11:53:25,262 INFO L140 encePairwiseOnDemand]: 859/868 looper letters, 23 selfloop transitions, 9 changer transitions 0/831 dead transitions. [2023-11-10 11:53:25,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 863 places, 831 transitions, 2077 flow [2023-11-10 11:53:25,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-10 11:53:25,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-10 11:53:25,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 6502 transitions. [2023-11-10 11:53:25,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9363479262672811 [2023-11-10 11:53:25,266 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 6502 transitions. [2023-11-10 11:53:25,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 6502 transitions. [2023-11-10 11:53:25,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:25,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 6502 transitions. [2023-11-10 11:53:25,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 812.75) internal successors, (6502), 8 states have internal predecessors, (6502), 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) [2023-11-10 11:53:25,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 868.0) internal successors, (7812), 9 states have internal predecessors, (7812), 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) [2023-11-10 11:53:25,276 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 868.0) internal successors, (7812), 9 states have internal predecessors, (7812), 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) [2023-11-10 11:53:25,276 INFO L175 Difference]: Start difference. First operand has 878 places, 826 transitions, 1997 flow. Second operand 8 states and 6502 transitions. [2023-11-10 11:53:25,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 863 places, 831 transitions, 2077 flow [2023-11-10 11:53:25,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 837 places, 831 transitions, 1963 flow, removed 38 selfloop flow, removed 26 redundant places. [2023-11-10 11:53:25,290 INFO L231 Difference]: Finished difference. Result has 837 places, 825 transitions, 1893 flow [2023-11-10 11:53:25,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1873, PETRI_DIFFERENCE_MINUEND_PLACES=830, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=824, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=816, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1893, PETRI_PLACES=837, PETRI_TRANSITIONS=825} [2023-11-10 11:53:25,291 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 27 predicate places. [2023-11-10 11:53:25,291 INFO L495 AbstractCegarLoop]: Abstraction has has 837 places, 825 transitions, 1893 flow [2023-11-10 11:53:25,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 811.25) internal successors, (6490), 8 states have internal predecessors, (6490), 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) [2023-11-10 11:53:25,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:25,292 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:25,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:25,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-10 11:53:25,501 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:25,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:25,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1973722837, now seen corresponding path program 1 times [2023-11-10 11:53:25,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:25,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392415746] [2023-11-10 11:53:25,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:25,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:26,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:26,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392415746] [2023-11-10 11:53:26,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392415746] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:26,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334352280] [2023-11-10 11:53:26,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:26,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:26,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:26,117 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) [2023-11-10 11:53:26,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-10 11:53:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:26,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-10 11:53:26,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:27,028 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:27,029 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:27,047 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:27,047 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:27,065 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:27,066 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:27,078 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:53:27,078 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-10 11:53:27,653 INFO L351 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 [2023-11-10 11:53:27,813 INFO L351 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 18 treesize of output 13 [2023-11-10 11:53:27,836 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:27,878 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-10 11:53:27,879 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:27,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334352280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:27,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:27,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [9] total 23 [2023-11-10 11:53:27,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187232408] [2023-11-10 11:53:27,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:27,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-10 11:53:27,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:27,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-10 11:53:27,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2023-11-10 11:53:27,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 704 out of 868 [2023-11-10 11:53:27,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 837 places, 825 transitions, 1893 flow. Second operand has 16 states, 16 states have (on average 710.25) internal successors, (11364), 16 states have internal predecessors, (11364), 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) [2023-11-10 11:53:27,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:27,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 704 of 868 [2023-11-10 11:53:27,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:29,662 INFO L124 PetriNetUnfolderBase]: 1642/7472 cut-off events. [2023-11-10 11:53:29,662 INFO L125 PetriNetUnfolderBase]: For 7329/8262 co-relation queries the response was YES. [2023-11-10 11:53:29,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13834 conditions, 7472 events. 1642/7472 cut-off events. For 7329/8262 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 64614 event pairs, 839 based on Foata normal form. 36/7082 useless extension candidates. Maximal degree in co-relation 13654. Up to 1050 conditions per place. [2023-11-10 11:53:29,705 INFO L140 encePairwiseOnDemand]: 842/868 looper letters, 145 selfloop transitions, 25 changer transitions 63/925 dead transitions. [2023-11-10 11:53:29,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 859 places, 925 transitions, 2891 flow [2023-11-10 11:53:29,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-10 11:53:29,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-10 11:53:29,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 16414 transitions. [2023-11-10 11:53:29,713 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8221799238629534 [2023-11-10 11:53:29,714 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 16414 transitions. [2023-11-10 11:53:29,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 16414 transitions. [2023-11-10 11:53:29,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:29,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 16414 transitions. [2023-11-10 11:53:29,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 713.6521739130435) internal successors, (16414), 23 states have internal predecessors, (16414), 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) [2023-11-10 11:53:29,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 868.0) internal successors, (20832), 24 states have internal predecessors, (20832), 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) [2023-11-10 11:53:29,743 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 868.0) internal successors, (20832), 24 states have internal predecessors, (20832), 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) [2023-11-10 11:53:29,744 INFO L175 Difference]: Start difference. First operand has 837 places, 825 transitions, 1893 flow. Second operand 23 states and 16414 transitions. [2023-11-10 11:53:29,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 859 places, 925 transitions, 2891 flow [2023-11-10 11:53:29,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 854 places, 925 transitions, 2880 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-10 11:53:29,763 INFO L231 Difference]: Finished difference. Result has 868 places, 830 transitions, 2068 flow [2023-11-10 11:53:29,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1882, PETRI_DIFFERENCE_MINUEND_PLACES=832, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=825, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=804, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2068, PETRI_PLACES=868, PETRI_TRANSITIONS=830} [2023-11-10 11:53:29,764 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 58 predicate places. [2023-11-10 11:53:29,765 INFO L495 AbstractCegarLoop]: Abstraction has has 868 places, 830 transitions, 2068 flow [2023-11-10 11:53:29,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 710.25) internal successors, (11364), 16 states have internal predecessors, (11364), 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) [2023-11-10 11:53:29,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:29,766 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:29,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-10 11:53:29,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:29,975 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:29,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:29,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1154900863, now seen corresponding path program 2 times [2023-11-10 11:53:29,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:29,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197386962] [2023-11-10 11:53:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:29,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:30,475 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:30,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:30,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197386962] [2023-11-10 11:53:30,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197386962] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:30,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917670388] [2023-11-10 11:53:30,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-10 11:53:30,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:30,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:30,477 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) [2023-11-10 11:53:30,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-10 11:53:31,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-10 11:53:31,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:53:31,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-10 11:53:31,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:31,198 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:31,198 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:31,218 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:31,218 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:31,235 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:31,236 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:31,247 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:53:31,248 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-10 11:53:31,883 INFO L351 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 [2023-11-10 11:53:31,967 INFO L351 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 18 treesize of output 13 [2023-11-10 11:53:31,992 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:32,036 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-10 11:53:32,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:32,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917670388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:32,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:32,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [9] total 23 [2023-11-10 11:53:32,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881495433] [2023-11-10 11:53:32,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:32,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-10 11:53:32,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:32,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-10 11:53:32,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2023-11-10 11:53:32,043 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 704 out of 868 [2023-11-10 11:53:32,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 868 places, 830 transitions, 2068 flow. Second operand has 16 states, 16 states have (on average 710.25) internal successors, (11364), 16 states have internal predecessors, (11364), 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) [2023-11-10 11:53:32,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:32,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 704 of 868 [2023-11-10 11:53:32,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:33,768 INFO L124 PetriNetUnfolderBase]: 1586/6977 cut-off events. [2023-11-10 11:53:33,768 INFO L125 PetriNetUnfolderBase]: For 21504/23157 co-relation queries the response was YES. [2023-11-10 11:53:33,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16119 conditions, 6977 events. 1586/6977 cut-off events. For 21504/23157 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 58910 event pairs, 321 based on Foata normal form. 32/6669 useless extension candidates. Maximal degree in co-relation 15924. Up to 1116 conditions per place. [2023-11-10 11:53:33,820 INFO L140 encePairwiseOnDemand]: 844/868 looper letters, 167 selfloop transitions, 17 changer transitions 79/955 dead transitions. [2023-11-10 11:53:33,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 881 places, 955 transitions, 3545 flow [2023-11-10 11:53:33,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-10 11:53:33,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-10 11:53:33,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 17133 transitions. [2023-11-10 11:53:33,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8224366359447005 [2023-11-10 11:53:33,827 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 17133 transitions. [2023-11-10 11:53:33,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 17133 transitions. [2023-11-10 11:53:33,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:33,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 17133 transitions. [2023-11-10 11:53:34,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 713.875) internal successors, (17133), 24 states have internal predecessors, (17133), 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) [2023-11-10 11:53:34,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 868.0) internal successors, (21700), 25 states have internal predecessors, (21700), 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) [2023-11-10 11:53:34,146 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 868.0) internal successors, (21700), 25 states have internal predecessors, (21700), 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) [2023-11-10 11:53:34,146 INFO L175 Difference]: Start difference. First operand has 868 places, 830 transitions, 2068 flow. Second operand 24 states and 17133 transitions. [2023-11-10 11:53:34,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 881 places, 955 transitions, 3545 flow [2023-11-10 11:53:34,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 861 places, 955 transitions, 3181 flow, removed 150 selfloop flow, removed 20 redundant places. [2023-11-10 11:53:34,175 INFO L231 Difference]: Finished difference. Result has 875 places, 830 transitions, 2061 flow [2023-11-10 11:53:34,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1975, PETRI_DIFFERENCE_MINUEND_PLACES=838, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=830, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=813, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2061, PETRI_PLACES=875, PETRI_TRANSITIONS=830} [2023-11-10 11:53:34,177 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 65 predicate places. [2023-11-10 11:53:34,177 INFO L495 AbstractCegarLoop]: Abstraction has has 875 places, 830 transitions, 2061 flow [2023-11-10 11:53:34,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 710.25) internal successors, (11364), 16 states have internal predecessors, (11364), 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) [2023-11-10 11:53:34,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:34,178 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:34,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:34,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:34,387 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:34,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:34,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1994970105, now seen corresponding path program 3 times [2023-11-10 11:53:34,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:34,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102339775] [2023-11-10 11:53:34,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:34,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:34,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:34,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102339775] [2023-11-10 11:53:34,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102339775] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:34,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656614140] [2023-11-10 11:53:34,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-10 11:53:34,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:34,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:34,950 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:53:34,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-10 11:53:35,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-10 11:53:35,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:53:35,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-10 11:53:35,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:35,679 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:35,680 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:35,701 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:35,701 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:35,719 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:35,720 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:35,732 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:53:35,732 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-10 11:53:36,382 INFO L351 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 [2023-11-10 11:53:36,530 INFO L351 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 18 treesize of output 13 [2023-11-10 11:53:36,555 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:36,606 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-10 11:53:36,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:36,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656614140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:36,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:36,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [10] total 24 [2023-11-10 11:53:36,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790593731] [2023-11-10 11:53:36,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:36,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-10 11:53:36,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:36,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-10 11:53:36,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2023-11-10 11:53:36,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 704 out of 868 [2023-11-10 11:53:36,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 875 places, 830 transitions, 2061 flow. Second operand has 16 states, 16 states have (on average 710.25) internal successors, (11364), 16 states have internal predecessors, (11364), 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) [2023-11-10 11:53:36,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:36,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 704 of 868 [2023-11-10 11:53:36,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:38,638 INFO L124 PetriNetUnfolderBase]: 1530/6877 cut-off events. [2023-11-10 11:53:38,639 INFO L125 PetriNetUnfolderBase]: For 14650/15495 co-relation queries the response was YES. [2023-11-10 11:53:38,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15164 conditions, 6877 events. 1530/6877 cut-off events. For 14650/15495 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 58000 event pairs, 381 based on Foata normal form. 48/6575 useless extension candidates. Maximal degree in co-relation 14966. Up to 1262 conditions per place. [2023-11-10 11:53:38,699 INFO L140 encePairwiseOnDemand]: 843/868 looper letters, 161 selfloop transitions, 22 changer transitions 61/936 dead transitions. [2023-11-10 11:53:38,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 884 places, 936 transitions, 3348 flow [2023-11-10 11:53:38,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-10 11:53:38,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-10 11:53:38,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 16419 transitions. [2023-11-10 11:53:38,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8224303746744139 [2023-11-10 11:53:38,707 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 16419 transitions. [2023-11-10 11:53:38,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 16419 transitions. [2023-11-10 11:53:38,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:38,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 16419 transitions. [2023-11-10 11:53:38,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 713.8695652173913) internal successors, (16419), 23 states have internal predecessors, (16419), 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) [2023-11-10 11:53:38,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 868.0) internal successors, (20832), 24 states have internal predecessors, (20832), 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) [2023-11-10 11:53:38,787 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 868.0) internal successors, (20832), 24 states have internal predecessors, (20832), 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) [2023-11-10 11:53:38,787 INFO L175 Difference]: Start difference. First operand has 875 places, 830 transitions, 2061 flow. Second operand 23 states and 16419 transitions. [2023-11-10 11:53:38,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 884 places, 936 transitions, 3348 flow [2023-11-10 11:53:38,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 861 places, 936 transitions, 3048 flow, removed 121 selfloop flow, removed 23 redundant places. [2023-11-10 11:53:38,822 INFO L231 Difference]: Finished difference. Result has 875 places, 835 transitions, 2160 flow [2023-11-10 11:53:38,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1981, PETRI_DIFFERENCE_MINUEND_PLACES=839, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=830, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=809, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2160, PETRI_PLACES=875, PETRI_TRANSITIONS=835} [2023-11-10 11:53:38,824 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 65 predicate places. [2023-11-10 11:53:38,824 INFO L495 AbstractCegarLoop]: Abstraction has has 875 places, 835 transitions, 2160 flow [2023-11-10 11:53:38,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 710.25) internal successors, (11364), 16 states have internal predecessors, (11364), 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) [2023-11-10 11:53:38,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:38,826 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:38,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:39,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-10 11:53:39,036 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:39,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:39,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1467763935, now seen corresponding path program 4 times [2023-11-10 11:53:39,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:39,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300463268] [2023-11-10 11:53:39,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:39,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:39,549 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:39,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:39,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300463268] [2023-11-10 11:53:39,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300463268] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:39,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794641408] [2023-11-10 11:53:39,550 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-10 11:53:39,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:39,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:39,565 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:53:39,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-10 11:53:40,265 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-10 11:53:40,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:53:40,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-10 11:53:40,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:40,295 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-10 11:53:40,415 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:40,415 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:40,433 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:40,434 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:40,448 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:40,449 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:40,459 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:53:40,460 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-10 11:53:41,075 INFO L351 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 [2023-11-10 11:53:41,149 INFO L351 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 18 treesize of output 13 [2023-11-10 11:53:41,171 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:41,211 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-10 11:53:41,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:41,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794641408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:41,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:41,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [9] total 23 [2023-11-10 11:53:41,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332858340] [2023-11-10 11:53:41,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:41,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-10 11:53:41,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:41,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-10 11:53:41,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2023-11-10 11:53:41,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 704 out of 868 [2023-11-10 11:53:41,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 875 places, 835 transitions, 2160 flow. Second operand has 16 states, 16 states have (on average 710.25) internal successors, (11364), 16 states have internal predecessors, (11364), 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) [2023-11-10 11:53:41,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:41,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 704 of 868 [2023-11-10 11:53:41,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:42,838 INFO L124 PetriNetUnfolderBase]: 1288/6187 cut-off events. [2023-11-10 11:53:42,839 INFO L125 PetriNetUnfolderBase]: For 14878/16035 co-relation queries the response was YES. [2023-11-10 11:53:42,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13373 conditions, 6187 events. 1288/6187 cut-off events. For 14878/16035 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 50999 event pairs, 273 based on Foata normal form. 56/5969 useless extension candidates. Maximal degree in co-relation 13174. Up to 1262 conditions per place. [2023-11-10 11:53:42,867 INFO L140 encePairwiseOnDemand]: 844/868 looper letters, 139 selfloop transitions, 15 changer transitions 80/926 dead transitions. [2023-11-10 11:53:42,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 887 places, 926 transitions, 3302 flow [2023-11-10 11:53:42,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-10 11:53:42,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-10 11:53:42,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 17113 transitions. [2023-11-10 11:53:42,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.821476574500768 [2023-11-10 11:53:42,874 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 17113 transitions. [2023-11-10 11:53:42,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 17113 transitions. [2023-11-10 11:53:42,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:42,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 17113 transitions. [2023-11-10 11:53:42,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 713.0416666666666) internal successors, (17113), 24 states have internal predecessors, (17113), 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) [2023-11-10 11:53:42,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 868.0) internal successors, (21700), 25 states have internal predecessors, (21700), 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) [2023-11-10 11:53:42,898 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 868.0) internal successors, (21700), 25 states have internal predecessors, (21700), 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) [2023-11-10 11:53:42,898 INFO L175 Difference]: Start difference. First operand has 875 places, 835 transitions, 2160 flow. Second operand 24 states and 17113 transitions. [2023-11-10 11:53:42,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 887 places, 926 transitions, 3302 flow [2023-11-10 11:53:42,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 868 places, 926 transitions, 3031 flow, removed 120 selfloop flow, removed 19 redundant places. [2023-11-10 11:53:42,928 INFO L231 Difference]: Finished difference. Result has 882 places, 828 transitions, 2061 flow [2023-11-10 11:53:42,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=2083, PETRI_DIFFERENCE_MINUEND_PLACES=845, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=835, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=820, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2061, PETRI_PLACES=882, PETRI_TRANSITIONS=828} [2023-11-10 11:53:42,929 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 72 predicate places. [2023-11-10 11:53:42,929 INFO L495 AbstractCegarLoop]: Abstraction has has 882 places, 828 transitions, 2061 flow [2023-11-10 11:53:42,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 710.25) internal successors, (11364), 16 states have internal predecessors, (11364), 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) [2023-11-10 11:53:42,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:42,930 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:42,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-10 11:53:43,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-10 11:53:43,139 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:43,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:43,140 INFO L85 PathProgramCache]: Analyzing trace with hash -546500663, now seen corresponding path program 5 times [2023-11-10 11:53:43,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:43,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899432584] [2023-11-10 11:53:43,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:43,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:43,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:43,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899432584] [2023-11-10 11:53:43,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899432584] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:43,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434908568] [2023-11-10 11:53:43,634 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-10 11:53:43,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:43,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:43,636 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:53:43,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-10 11:53:44,342 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-11-10 11:53:44,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:53:44,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-10 11:53:44,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:44,472 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:44,472 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:44,487 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:44,488 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:44,505 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:44,506 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:44,535 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:53:44,535 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-10 11:53:45,167 INFO L351 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 [2023-11-10 11:53:45,250 INFO L351 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 18 treesize of output 13 [2023-11-10 11:53:45,275 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:45,320 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-10 11:53:45,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:45,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434908568] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:45,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:45,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [9] total 23 [2023-11-10 11:53:45,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286342232] [2023-11-10 11:53:45,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:45,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-10 11:53:45,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:45,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-10 11:53:45,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2023-11-10 11:53:45,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 704 out of 868 [2023-11-10 11:53:45,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 882 places, 828 transitions, 2061 flow. Second operand has 16 states, 16 states have (on average 710.25) internal successors, (11364), 16 states have internal predecessors, (11364), 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) [2023-11-10 11:53:45,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:45,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 704 of 868 [2023-11-10 11:53:45,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:47,121 INFO L124 PetriNetUnfolderBase]: 1282/6512 cut-off events. [2023-11-10 11:53:47,121 INFO L125 PetriNetUnfolderBase]: For 16212/17269 co-relation queries the response was YES. [2023-11-10 11:53:47,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13543 conditions, 6512 events. 1282/6512 cut-off events. For 16212/17269 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 54857 event pairs, 679 based on Foata normal form. 44/6218 useless extension candidates. Maximal degree in co-relation 13341. Up to 1050 conditions per place. [2023-11-10 11:53:47,147 INFO L140 encePairwiseOnDemand]: 843/868 looper letters, 120 selfloop transitions, 21 changer transitions 82/915 dead transitions. [2023-11-10 11:53:47,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 889 places, 915 transitions, 3267 flow [2023-11-10 11:53:47,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-10 11:53:47,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-10 11:53:47,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 17111 transitions. [2023-11-10 11:53:47,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8213805683563749 [2023-11-10 11:53:47,155 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 17111 transitions. [2023-11-10 11:53:47,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 17111 transitions. [2023-11-10 11:53:47,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:47,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 17111 transitions. [2023-11-10 11:53:47,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 712.9583333333334) internal successors, (17111), 24 states have internal predecessors, (17111), 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) [2023-11-10 11:53:47,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 868.0) internal successors, (21700), 25 states have internal predecessors, (21700), 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) [2023-11-10 11:53:47,179 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 868.0) internal successors, (21700), 25 states have internal predecessors, (21700), 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) [2023-11-10 11:53:47,179 INFO L175 Difference]: Start difference. First operand has 882 places, 828 transitions, 2061 flow. Second operand 24 states and 17111 transitions. [2023-11-10 11:53:47,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 889 places, 915 transitions, 3267 flow [2023-11-10 11:53:47,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 862 places, 915 transitions, 2887 flow, removed 163 selfloop flow, removed 27 redundant places. [2023-11-10 11:53:47,210 INFO L231 Difference]: Finished difference. Result has 874 places, 821 transitions, 1958 flow [2023-11-10 11:53:47,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1955, PETRI_DIFFERENCE_MINUEND_PLACES=839, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=828, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=807, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1958, PETRI_PLACES=874, PETRI_TRANSITIONS=821} [2023-11-10 11:53:47,211 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 64 predicate places. [2023-11-10 11:53:47,211 INFO L495 AbstractCegarLoop]: Abstraction has has 874 places, 821 transitions, 1958 flow [2023-11-10 11:53:47,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 710.25) internal successors, (11364), 16 states have internal predecessors, (11364), 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) [2023-11-10 11:53:47,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:47,212 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:47,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:47,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-10 11:53:47,422 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-10 11:53:47,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:47,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1549495279, now seen corresponding path program 6 times [2023-11-10 11:53:47,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:47,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957952370] [2023-11-10 11:53:47,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:47,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:48,097 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:48,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:48,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957952370] [2023-11-10 11:53:48,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957952370] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:48,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428148167] [2023-11-10 11:53:48,097 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-10 11:53:48,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:48,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:48,100 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:53:48,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-10 11:53:48,858 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2023-11-10 11:53:48,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:53:48,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 91 conjunts are in the unsatisfiable core [2023-11-10 11:53:48,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:49,050 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:49,051 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:49,072 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:49,072 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:49,091 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:49,091 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:49,112 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:49,112 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:49,170 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,170 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2023-11-10 11:53:49,215 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,216 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,255 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,255 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,292 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,292 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,329 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,330 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,362 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,362 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,395 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,395 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,429 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,429 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,463 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,463 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,499 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,499 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,532 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,532 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,565 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,565 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,601 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,601 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,636 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,636 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,674 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,675 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,748 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,748 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,783 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:49,783 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:49,975 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:49,976 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 20 [2023-11-10 11:53:50,129 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:53:50,129 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:53:50,874 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 18 treesize of output 13 [2023-11-10 11:53:50,978 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:53:50,978 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 28 [2023-11-10 11:53:51,004 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:53:51,004 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-11-10 11:53:51,497 INFO L351 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 [2023-11-10 11:53:51,577 INFO L351 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 18 treesize of output 13 [2023-11-10 11:53:51,770 INFO L351 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 18 treesize of output 13 [2023-11-10 11:53:51,789 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:51,828 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-10 11:53:51,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:51,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428148167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:51,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:51,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [10] total 28 [2023-11-10 11:53:51,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212046389] [2023-11-10 11:53:51,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:51,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-10 11:53:51,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:51,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-10 11:53:51,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2023-11-10 11:53:51,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 696 out of 868 [2023-11-10 11:53:51,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 874 places, 821 transitions, 1958 flow. Second operand has 20 states, 20 states have (on average 701.2) internal successors, (14024), 20 states have internal predecessors, (14024), 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) [2023-11-10 11:53:51,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:51,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 696 of 868 [2023-11-10 11:53:51,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:52,819 INFO L124 PetriNetUnfolderBase]: 388/2451 cut-off events. [2023-11-10 11:53:52,819 INFO L125 PetriNetUnfolderBase]: For 4317/4557 co-relation queries the response was YES. [2023-11-10 11:53:52,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4965 conditions, 2451 events. 388/2451 cut-off events. For 4317/4557 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 12651 event pairs, 69 based on Foata normal form. 20/2376 useless extension candidates. Maximal degree in co-relation 4766. Up to 145 conditions per place. [2023-11-10 11:53:52,831 INFO L140 encePairwiseOnDemand]: 842/868 looper letters, 0 selfloop transitions, 0 changer transitions 867/867 dead transitions. [2023-11-10 11:53:52,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 883 places, 867 transitions, 2643 flow [2023-11-10 11:53:52,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-10 11:53:52,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-10 11:53:52,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 16882 transitions. [2023-11-10 11:53:52,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8103878648233487 [2023-11-10 11:53:52,838 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 16882 transitions. [2023-11-10 11:53:52,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 16882 transitions. [2023-11-10 11:53:52,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:52,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 16882 transitions. [2023-11-10 11:53:52,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 703.4166666666666) internal successors, (16882), 24 states have internal predecessors, (16882), 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) [2023-11-10 11:53:52,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 868.0) internal successors, (21700), 25 states have internal predecessors, (21700), 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) [2023-11-10 11:53:52,862 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 868.0) internal successors, (21700), 25 states have internal predecessors, (21700), 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) [2023-11-10 11:53:52,862 INFO L175 Difference]: Start difference. First operand has 874 places, 821 transitions, 1958 flow. Second operand 24 states and 16882 transitions. [2023-11-10 11:53:52,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 883 places, 867 transitions, 2643 flow [2023-11-10 11:53:52,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 853 places, 867 transitions, 2424 flow, removed 59 selfloop flow, removed 30 redundant places. [2023-11-10 11:53:52,875 INFO L231 Difference]: Finished difference. Result has 853 places, 0 transitions, 0 flow [2023-11-10 11:53:52,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=868, PETRI_DIFFERENCE_MINUEND_FLOW=1834, PETRI_DIFFERENCE_MINUEND_PLACES=830, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=819, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=0, PETRI_PLACES=853, PETRI_TRANSITIONS=0} [2023-11-10 11:53:52,875 INFO L281 CegarLoopForPetriNet]: 810 programPoint places, 43 predicate places. [2023-11-10 11:53:52,875 INFO L495 AbstractCegarLoop]: Abstraction has has 853 places, 0 transitions, 0 flow [2023-11-10 11:53:52,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 701.2) internal successors, (14024), 20 states have internal predecessors, (14024), 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) [2023-11-10 11:53:52,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-11-10 11:53:52,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-11-10 11:53:52,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-10 11:53:52,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-11-10 11:53:52,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-11-10 11:53:52,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-11-10 11:53:52,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-11-10 11:53:52,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:53,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-10 11:53:53,090 INFO L445 BasicCegarLoop]: Path program histogram: [6, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:53,093 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 11:53:53,093 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 11:53:53,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:53:53 BasicIcfg [2023-11-10 11:53:53,096 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 11:53:53,097 INFO L158 Benchmark]: Toolchain (without parser) took 58033.36ms. Allocated memory was 248.5MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 185.8MB in the beginning and 2.3GB in the end (delta: -2.1GB). Peak memory consumption was 857.5MB. Max. memory is 8.0GB. [2023-11-10 11:53:53,097 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 206.6MB. Free memory is still 157.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:53:53,097 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5739.59ms. Allocated memory was 248.5MB in the beginning and 327.2MB in the end (delta: 78.6MB). Free memory was 185.4MB in the beginning and 240.7MB in the end (delta: -55.4MB). Peak memory consumption was 120.4MB. Max. memory is 8.0GB. [2023-11-10 11:53:53,097 INFO L158 Benchmark]: Boogie Procedure Inliner took 137.35ms. Allocated memory is still 327.2MB. Free memory was 240.7MB in the beginning and 229.3MB in the end (delta: 11.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-11-10 11:53:53,097 INFO L158 Benchmark]: Boogie Preprocessor took 73.61ms. Allocated memory is still 327.2MB. Free memory was 229.3MB in the beginning and 223.5MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-11-10 11:53:53,098 INFO L158 Benchmark]: RCFGBuilder took 959.38ms. Allocated memory is still 327.2MB. Free memory was 223.5MB in the beginning and 154.3MB in the end (delta: 69.2MB). Peak memory consumption was 69.2MB. Max. memory is 8.0GB. [2023-11-10 11:53:53,098 INFO L158 Benchmark]: TraceAbstraction took 51119.35ms. Allocated memory was 327.2MB in the beginning and 3.2GB in the end (delta: 2.9GB). Free memory was 153.8MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 745.9MB. Max. memory is 8.0GB. [2023-11-10 11:53:53,098 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 206.6MB. Free memory is still 157.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 5739.59ms. Allocated memory was 248.5MB in the beginning and 327.2MB in the end (delta: 78.6MB). Free memory was 185.4MB in the beginning and 240.7MB in the end (delta: -55.4MB). Peak memory consumption was 120.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 137.35ms. Allocated memory is still 327.2MB. Free memory was 240.7MB in the beginning and 229.3MB in the end (delta: 11.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 73.61ms. Allocated memory is still 327.2MB. Free memory was 229.3MB in the beginning and 223.5MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 959.38ms. Allocated memory is still 327.2MB. Free memory was 223.5MB in the beginning and 154.3MB in the end (delta: 69.2MB). Peak memory consumption was 69.2MB. Max. memory is 8.0GB. * TraceAbstraction took 51119.35ms. Allocated memory was 327.2MB in the beginning and 3.2GB in the end (delta: 2.9GB). Free memory was 153.8MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 745.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 5814]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 174]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 174]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 174]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 983 locations, 7 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: 51.0s, OverallIterations: 16, TraceHistogramMax: 4, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 18.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3017 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3017 mSDsluCounter, 8065 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7043 mSDsCounter, 305 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8152 IncrementalHoareTripleChecker+Invalid, 8457 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 305 mSolverCounterUnsat, 1022 mSDtfsCounter, 8152 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4676 GetRequests, 4229 SyntacticMatches, 0 SemanticMatches, 447 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3489 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2160occurred in iteration=13, InterpolantAutomatonStates: 280, 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: 0.8s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 20.6s InterpolantComputationTime, 9454 NumberOfCodeBlocks, 9294 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 9756 ConstructedInterpolants, 4 QuantifiedInterpolants, 44266 SizeOfPredicates, 201 NumberOfNonLiveVariables, 12495 ConjunctsInSsa, 452 ConjunctsInUnsatCore, 28 InterpolantComputations, 15 PerfectInterpolantSequences, 521/993 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-10 11:53:53,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...