/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_change_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:51:36,576 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:51:36,653 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 11:51:36,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:51:36,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:51:36,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:51:36,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:51:36,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:51:36,689 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:51:36,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:51:36,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:51:36,693 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:51:36,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:51:36,695 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:51:36,695 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:51:36,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:51:36,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:51:36,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:51:36,696 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:51:36,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:51:36,696 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:51:36,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:51:36,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:51:36,698 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:51:36,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:51:36,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:51:36,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:51:36,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:51:36,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:51:36,700 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:51:36,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:51:36,701 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:51:36,701 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:51:36,702 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:51:36,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:51:36,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:51:36,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:51:36,955 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:51:36,956 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:51:36,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2023-11-10 11:51:38,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:51:38,771 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:51:38,772 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2023-11-10 11:51:38,817 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c8080cd5/c64405290d194f3ba3e36bfc4d964009/FLAGb42d2eddd [2023-11-10 11:51:38,833 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c8080cd5/c64405290d194f3ba3e36bfc4d964009 [2023-11-10 11:51:38,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:51:38,839 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:51:38,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:51:38,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:51:38,847 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:51:38,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:51:38" (1/1) ... [2023-11-10 11:51:38,848 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354b457f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:38, skipping insertion in model container [2023-11-10 11:51:38,850 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:51:38" (1/1) ... [2023-11-10 11:51:38,951 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:51:39,313 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_change_pc8736x_gpio_set.i[5469,5482] [2023-11-10 11:51:42,078 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-10 11:51:42,693 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:51:42,693 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:51:42,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:51:42,790 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:51:42,803 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_change_pc8736x_gpio_set.i[5469,5482] [2023-11-10 11:51:42,900 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 11:51:42,901 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 11:51:42,902 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 11:51:42,902 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 11:51:42,984 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-10 11:51:43,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-10 11:51:43,037 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:51:43,038 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:51:43,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:51:43,597 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:51:43,597 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:51:43,597 WARN L672 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:51:43,597 WARN L672 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:51:43,597 WARN L672 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:51:43,598 WARN L672 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:51:43,598 WARN L672 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:51:43,605 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:51:43,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:43 WrapperNode [2023-11-10 11:51:43,605 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:51:43,606 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:51:43,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:51:43,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:51:43,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:43" (1/1) ... [2023-11-10 11:51:43,710 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:43" (1/1) ... [2023-11-10 11:51:43,813 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 58, statements flattened = 792 [2023-11-10 11:51:43,813 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:51:43,814 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:51:43,814 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:51:43,814 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:51:43,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:43" (1/1) ... [2023-11-10 11:51:43,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:43" (1/1) ... [2023-11-10 11:51:43,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:43" (1/1) ... [2023-11-10 11:51:43,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:43" (1/1) ... [2023-11-10 11:51:43,867 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:43" (1/1) ... [2023-11-10 11:51:43,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:43" (1/1) ... [2023-11-10 11:51:43,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:43" (1/1) ... [2023-11-10 11:51:43,886 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:43" (1/1) ... [2023-11-10 11:51:43,896 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:51:43,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:51:43,897 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:51:43,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:51:43,898 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:43" (1/1) ... [2023-11-10 11:51:43,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:51:43,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:51:43,943 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 11:51:43,965 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 11:51:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-10 11:51:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-10 11:51:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:51:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-10 11:51:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-11-10 11:51:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-11-10 11:51:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:51:44,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:51:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-10 11:51:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:51:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-10 11:51:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:51:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:51:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-10 11:51:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-11-10 11:51:44,005 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-11-10 11:51:44,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:51:44,008 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 11:51:44,393 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:51:44,395 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:51:45,213 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:51:45,234 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:51:45,236 INFO L302 CfgBuilder]: Removed 31 assume(true) statements. [2023-11-10 11:51:45,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:51:45 BoogieIcfgContainer [2023-11-10 11:51:45,248 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:51:45,250 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:51:45,251 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:51:45,254 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:51:45,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:51:38" (1/3) ... [2023-11-10 11:51:45,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31395831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:51:45, skipping insertion in model container [2023-11-10 11:51:45,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:43" (2/3) ... [2023-11-10 11:51:45,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31395831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:51:45, skipping insertion in model container [2023-11-10 11:51:45,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:51:45" (3/3) ... [2023-11-10 11:51:45,256 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2023-11-10 11:51:45,272 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:51:45,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-10 11:51:45,273 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:51:45,456 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-10 11:51:45,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 913 places, 971 transitions, 1956 flow [2023-11-10 11:51:45,881 INFO L124 PetriNetUnfolderBase]: 65/969 cut-off events. [2023-11-10 11:51:45,881 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-10 11:51:45,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 978 conditions, 969 events. 65/969 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1702 event pairs, 0 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 793. Up to 9 conditions per place. [2023-11-10 11:51:45,899 INFO L82 GeneralOperation]: Start removeDead. Operand has 913 places, 971 transitions, 1956 flow [2023-11-10 11:51:45,915 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 902 places, 960 transitions, 1929 flow [2023-11-10 11:51:45,930 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:51:45,938 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;@65657ee0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:51:45,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-10 11:51:46,015 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:51:46,016 INFO L124 PetriNetUnfolderBase]: 9/347 cut-off events. [2023-11-10 11:51:46,016 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:51:46,016 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:51:46,017 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] [2023-11-10 11:51:46,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-10 11:51:46,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:51:46,022 INFO L85 PathProgramCache]: Analyzing trace with hash -280736102, now seen corresponding path program 1 times [2023-11-10 11:51:46,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:51:46,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778254644] [2023-11-10 11:51:46,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:51:46,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:51:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:51:46,936 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 11:51:46,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:51:46,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778254644] [2023-11-10 11:51:46,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778254644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:51:46,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:51:46,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-10 11:51:46,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836036290] [2023-11-10 11:51:46,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:51:46,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-10 11:51:46,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:51:46,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-10 11:51:46,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-10 11:51:46,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 891 out of 971 [2023-11-10 11:51:47,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 902 places, 960 transitions, 1929 flow. Second operand has 9 states, 9 states have (on average 893.4444444444445) internal successors, (8041), 9 states have internal predecessors, (8041), 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 11:51:47,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:51:47,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 891 of 971 [2023-11-10 11:51:47,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:51:47,516 INFO L124 PetriNetUnfolderBase]: 28/916 cut-off events. [2023-11-10 11:51:47,517 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2023-11-10 11:51:47,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 916 events. 28/916 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1422 event pairs, 0 based on Foata normal form. 25/908 useless extension candidates. Maximal degree in co-relation 795. Up to 12 conditions per place. [2023-11-10 11:51:47,525 INFO L140 encePairwiseOnDemand]: 917/971 looper letters, 21 selfloop transitions, 17 changer transitions 1/916 dead transitions. [2023-11-10 11:51:47,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 912 places, 916 transitions, 1917 flow [2023-11-10 11:51:47,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-10 11:51:47,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-10 11:51:47,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 16113 transitions. [2023-11-10 11:51:47,567 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9219018194301407 [2023-11-10 11:51:47,568 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 16113 transitions. [2023-11-10 11:51:47,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 16113 transitions. [2023-11-10 11:51:47,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:51:47,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 16113 transitions. [2023-11-10 11:51:47,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 895.1666666666666) internal successors, (16113), 18 states have internal predecessors, (16113), 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 11:51:47,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 971.0) internal successors, (18449), 19 states have internal predecessors, (18449), 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 11:51:47,674 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 971.0) internal successors, (18449), 19 states have internal predecessors, (18449), 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 11:51:47,676 INFO L175 Difference]: Start difference. First operand has 902 places, 960 transitions, 1929 flow. Second operand 18 states and 16113 transitions. [2023-11-10 11:51:47,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 912 places, 916 transitions, 1917 flow [2023-11-10 11:51:47,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 909 places, 916 transitions, 1912 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-10 11:51:47,699 INFO L231 Difference]: Finished difference. Result has 909 places, 915 transitions, 1868 flow [2023-11-10 11:51:47,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=971, PETRI_DIFFERENCE_MINUEND_FLOW=1836, PETRI_DIFFERENCE_MINUEND_PLACES=892, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=916, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=899, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1868, PETRI_PLACES=909, PETRI_TRANSITIONS=915} [2023-11-10 11:51:47,706 INFO L281 CegarLoopForPetriNet]: 902 programPoint places, 7 predicate places. [2023-11-10 11:51:47,706 INFO L495 AbstractCegarLoop]: Abstraction has has 909 places, 915 transitions, 1868 flow [2023-11-10 11:51:47,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 893.4444444444445) internal successors, (8041), 9 states have internal predecessors, (8041), 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 11:51:47,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:51:47,710 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 11:51:47,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:51:47,711 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-10 11:51:47,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:51:47,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1132856247, now seen corresponding path program 1 times [2023-11-10 11:51:47,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:51:47,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662179707] [2023-11-10 11:51:47,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:51:47,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:51:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:51:48,509 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 11:51:48,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:51:48,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662179707] [2023-11-10 11:51:48,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662179707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:51:48,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:51:48,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:51:48,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847832345] [2023-11-10 11:51:48,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:51:48,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:51:48,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:51:48,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:51:48,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:51:48,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 883 out of 971 [2023-11-10 11:51:48,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 909 places, 915 transitions, 1868 flow. Second operand has 6 states, 6 states have (on average 887.6666666666666) internal successors, (5326), 6 states have internal predecessors, (5326), 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 11:51:48,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:51:48,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 883 of 971 [2023-11-10 11:51:48,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:51:49,065 INFO L124 PetriNetUnfolderBase]: 45/1209 cut-off events. [2023-11-10 11:51:49,066 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-10 11:51:49,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1296 conditions, 1209 events. 45/1209 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 2984 event pairs, 4 based on Foata normal form. 0/1160 useless extension candidates. Maximal degree in co-relation 808. Up to 49 conditions per place. [2023-11-10 11:51:49,074 INFO L140 encePairwiseOnDemand]: 959/971 looper letters, 41 selfloop transitions, 11 changer transitions 0/920 dead transitions. [2023-11-10 11:51:49,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 911 places, 920 transitions, 1982 flow [2023-11-10 11:51:49,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-10 11:51:49,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-10 11:51:49,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5351 transitions. [2023-11-10 11:51:49,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9184689323721249 [2023-11-10 11:51:49,087 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 5351 transitions. [2023-11-10 11:51:49,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 5351 transitions. [2023-11-10 11:51:49,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:51:49,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 5351 transitions. [2023-11-10 11:51:49,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 891.8333333333334) internal successors, (5351), 6 states have internal predecessors, (5351), 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 11:51:49,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 971.0) internal successors, (6797), 7 states have internal predecessors, (6797), 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 11:51:49,113 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 971.0) internal successors, (6797), 7 states have internal predecessors, (6797), 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 11:51:49,113 INFO L175 Difference]: Start difference. First operand has 909 places, 915 transitions, 1868 flow. Second operand 6 states and 5351 transitions. [2023-11-10 11:51:49,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 911 places, 920 transitions, 1982 flow [2023-11-10 11:51:49,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 894 places, 920 transitions, 1948 flow, removed 0 selfloop flow, removed 17 redundant places. [2023-11-10 11:51:49,134 INFO L231 Difference]: Finished difference. Result has 895 places, 917 transitions, 1875 flow [2023-11-10 11:51:49,138 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=971, PETRI_DIFFERENCE_MINUEND_FLOW=1830, PETRI_DIFFERENCE_MINUEND_PLACES=889, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=913, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=902, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1875, PETRI_PLACES=895, PETRI_TRANSITIONS=917} [2023-11-10 11:51:49,144 INFO L281 CegarLoopForPetriNet]: 902 programPoint places, -7 predicate places. [2023-11-10 11:51:49,144 INFO L495 AbstractCegarLoop]: Abstraction has has 895 places, 917 transitions, 1875 flow [2023-11-10 11:51:49,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 887.6666666666666) internal successors, (5326), 6 states have internal predecessors, (5326), 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 11:51:49,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:51:49,146 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] [2023-11-10 11:51:49,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:51:49,146 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-10 11:51:49,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:51:49,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1841903537, now seen corresponding path program 1 times [2023-11-10 11:51:49,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:51:49,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430274269] [2023-11-10 11:51:49,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:51:49,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:51:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:51:49,702 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 11:51:49,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:51:49,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430274269] [2023-11-10 11:51:49,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430274269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:51:49,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:51:49,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-10 11:51:49,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61600459] [2023-11-10 11:51:49,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:51:49,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-10 11:51:49,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:51:49,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-10 11:51:49,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-10 11:51:49,711 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 901 out of 971 [2023-11-10 11:51:49,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 895 places, 917 transitions, 1875 flow. Second operand has 5 states, 5 states have (on average 903.2) internal successors, (4516), 5 states have internal predecessors, (4516), 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 11:51:49,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:51:49,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 901 of 971 [2023-11-10 11:51:49,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:51:49,932 INFO L124 PetriNetUnfolderBase]: 34/1052 cut-off events. [2023-11-10 11:51:49,933 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-10 11:51:49,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1118 conditions, 1052 events. 34/1052 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 2040 event pairs, 0 based on Foata normal form. 0/1015 useless extension candidates. Maximal degree in co-relation 634. Up to 24 conditions per place. [2023-11-10 11:51:49,942 INFO L140 encePairwiseOnDemand]: 964/971 looper letters, 28 selfloop transitions, 6 changer transitions 0/921 dead transitions. [2023-11-10 11:51:49,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 899 places, 921 transitions, 1951 flow [2023-11-10 11:51:49,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-10 11:51:49,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-10 11:51:49,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4539 transitions. [2023-11-10 11:51:49,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9349124613800206 [2023-11-10 11:51:49,951 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 4539 transitions. [2023-11-10 11:51:49,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 4539 transitions. [2023-11-10 11:51:49,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:51:49,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 4539 transitions. [2023-11-10 11:51:49,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 907.8) internal successors, (4539), 5 states have internal predecessors, (4539), 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 11:51:49,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 971.0) internal successors, (5826), 6 states have internal predecessors, (5826), 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 11:51:49,970 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 971.0) internal successors, (5826), 6 states have internal predecessors, (5826), 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 11:51:49,970 INFO L175 Difference]: Start difference. First operand has 895 places, 917 transitions, 1875 flow. Second operand 5 states and 4539 transitions. [2023-11-10 11:51:49,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 899 places, 921 transitions, 1951 flow [2023-11-10 11:51:49,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 895 places, 921 transitions, 1936 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-10 11:51:49,988 INFO L231 Difference]: Finished difference. Result has 896 places, 918 transitions, 1880 flow [2023-11-10 11:51:49,989 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=971, PETRI_DIFFERENCE_MINUEND_FLOW=1860, PETRI_DIFFERENCE_MINUEND_PLACES=891, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=917, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=911, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1880, PETRI_PLACES=896, PETRI_TRANSITIONS=918} [2023-11-10 11:51:49,991 INFO L281 CegarLoopForPetriNet]: 902 programPoint places, -6 predicate places. [2023-11-10 11:51:49,991 INFO L495 AbstractCegarLoop]: Abstraction has has 896 places, 918 transitions, 1880 flow [2023-11-10 11:51:49,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 903.2) internal successors, (4516), 5 states have internal predecessors, (4516), 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 11:51:49,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:51:49,993 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] [2023-11-10 11:51:49,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:51:49,993 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-10 11:51:49,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:51:49,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1912990014, now seen corresponding path program 1 times [2023-11-10 11:51:49,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:51:49,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741940047] [2023-11-10 11:51:49,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:51:49,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:51:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:51:50,626 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 11:51:50,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:51:50,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741940047] [2023-11-10 11:51:50,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741940047] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:51:50,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252966338] [2023-11-10 11:51:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:51:50,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:51:50,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:51:50,641 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 11:51:50,660 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 11:51:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:51:51,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-10 11:51:51,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:51:51,163 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 11:51:51,200 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 11:51:51,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:51:51,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252966338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:51:51,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:51:51,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2023-11-10 11:51:51,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834900024] [2023-11-10 11:51:51,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:51:51,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:51:51,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:51:51,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:51:51,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-10 11:51:51,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 854 out of 971 [2023-11-10 11:51:51,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 896 places, 918 transitions, 1880 flow. Second operand has 7 states, 7 states have (on average 859.2857142857143) internal successors, (6015), 7 states have internal predecessors, (6015), 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 11:51:51,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:51:51,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 854 of 971 [2023-11-10 11:51:51,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:51:52,365 INFO L124 PetriNetUnfolderBase]: 886/3873 cut-off events. [2023-11-10 11:51:52,365 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-11-10 11:51:52,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5433 conditions, 3873 events. 886/3873 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 28265 event pairs, 437 based on Foata normal form. 0/3613 useless extension candidates. Maximal degree in co-relation 5204. Up to 923 conditions per place. [2023-11-10 11:51:52,400 INFO L140 encePairwiseOnDemand]: 959/971 looper letters, 147 selfloop transitions, 21 changer transitions 0/1006 dead transitions. [2023-11-10 11:51:52,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 906 places, 1006 transitions, 2401 flow [2023-11-10 11:51:52,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 11:51:52,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 11:51:52,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 9560 transitions. [2023-11-10 11:51:52,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8950472802172081 [2023-11-10 11:51:52,424 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 9560 transitions. [2023-11-10 11:51:52,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 9560 transitions. [2023-11-10 11:51:52,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:51:52,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 9560 transitions. [2023-11-10 11:51:52,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 869.0909090909091) internal successors, (9560), 11 states have internal predecessors, (9560), 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 11:51:52,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 971.0) internal successors, (11652), 12 states have internal predecessors, (11652), 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 11:51:52,542 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 971.0) internal successors, (11652), 12 states have internal predecessors, (11652), 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 11:51:52,542 INFO L175 Difference]: Start difference. First operand has 896 places, 918 transitions, 1880 flow. Second operand 11 states and 9560 transitions. [2023-11-10 11:51:52,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 906 places, 1006 transitions, 2401 flow [2023-11-10 11:51:52,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 903 places, 1006 transitions, 2391 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-10 11:51:52,563 INFO L231 Difference]: Finished difference. Result has 908 places, 938 transitions, 1993 flow [2023-11-10 11:51:52,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=971, PETRI_DIFFERENCE_MINUEND_FLOW=1870, PETRI_DIFFERENCE_MINUEND_PLACES=893, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=918, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=907, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1993, PETRI_PLACES=908, PETRI_TRANSITIONS=938} [2023-11-10 11:51:52,567 INFO L281 CegarLoopForPetriNet]: 902 programPoint places, 6 predicate places. [2023-11-10 11:51:52,567 INFO L495 AbstractCegarLoop]: Abstraction has has 908 places, 938 transitions, 1993 flow [2023-11-10 11:51:52,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 859.2857142857143) internal successors, (6015), 7 states have internal predecessors, (6015), 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 11:51:52,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:51:52,569 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 11:51:52,581 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 11:51:52,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:51:52,778 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-10 11:51:52,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:51:52,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1074019502, now seen corresponding path program 1 times [2023-11-10 11:51:52,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:51:52,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192885928] [2023-11-10 11:51:52,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:51:52,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:51:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:51:53,526 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 11:51:53,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:51:53,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192885928] [2023-11-10 11:51:53,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192885928] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:51:53,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910174352] [2023-11-10 11:51:53,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:51:53,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:51:53,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:51:53,529 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 11:51:53,531 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 11:51:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:51:54,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-10 11:51:54,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:51:54,262 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 11:51:54,262 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-10 11:51:54,364 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 11:51:54,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910174352] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-10 11:51:54,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-10 11:51:54,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 13 [2023-11-10 11:51:54,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099617543] [2023-11-10 11:51:54,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-10 11:51:54,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-10 11:51:54,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:51:54,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-10 11:51:54,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-10 11:51:54,376 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 901 out of 971 [2023-11-10 11:51:54,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 908 places, 938 transitions, 1993 flow. Second operand has 13 states, 13 states have (on average 903.3076923076923) internal successors, (11743), 13 states have internal predecessors, (11743), 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 11:51:54,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:51:54,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 901 of 971 [2023-11-10 11:51:54,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:51:54,879 INFO L124 PetriNetUnfolderBase]: 51/1391 cut-off events. [2023-11-10 11:51:54,880 INFO L125 PetriNetUnfolderBase]: For 24/25 co-relation queries the response was YES. [2023-11-10 11:51:54,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1544 conditions, 1391 events. 51/1391 cut-off events. For 24/25 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4277 event pairs, 1 based on Foata normal form. 3/1338 useless extension candidates. Maximal degree in co-relation 1504. Up to 16 conditions per place. [2023-11-10 11:51:54,891 INFO L140 encePairwiseOnDemand]: 953/971 looper letters, 25 selfloop transitions, 23 changer transitions 0/955 dead transitions. [2023-11-10 11:51:54,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 921 places, 955 transitions, 2127 flow [2023-11-10 11:51:54,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-10 11:51:54,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-10 11:51:54,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 12666 transitions. [2023-11-10 11:51:54,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9317345887891717 [2023-11-10 11:51:54,911 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 12666 transitions. [2023-11-10 11:51:54,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 12666 transitions. [2023-11-10 11:51:54,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:51:54,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 12666 transitions. [2023-11-10 11:51:54,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 904.7142857142857) internal successors, (12666), 14 states have internal predecessors, (12666), 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 11:51:54,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 971.0) internal successors, (14565), 15 states have internal predecessors, (14565), 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 11:51:54,953 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 971.0) internal successors, (14565), 15 states have internal predecessors, (14565), 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 11:51:54,953 INFO L175 Difference]: Start difference. First operand has 908 places, 938 transitions, 1993 flow. Second operand 14 states and 12666 transitions. [2023-11-10 11:51:54,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 921 places, 955 transitions, 2127 flow [2023-11-10 11:51:54,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 921 places, 955 transitions, 2127 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-10 11:51:54,972 INFO L231 Difference]: Finished difference. Result has 924 places, 945 transitions, 2082 flow [2023-11-10 11:51:54,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=971, PETRI_DIFFERENCE_MINUEND_FLOW=1993, PETRI_DIFFERENCE_MINUEND_PLACES=908, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=919, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2082, PETRI_PLACES=924, PETRI_TRANSITIONS=945} [2023-11-10 11:51:54,975 INFO L281 CegarLoopForPetriNet]: 902 programPoint places, 22 predicate places. [2023-11-10 11:51:54,975 INFO L495 AbstractCegarLoop]: Abstraction has has 924 places, 945 transitions, 2082 flow [2023-11-10 11:51:54,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 903.3076923076923) internal successors, (11743), 13 states have internal predecessors, (11743), 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 11:51:54,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:51:54,979 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] [2023-11-10 11:51:54,990 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 11:51:55,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:51:55,188 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-10 11:51:55,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:51:55,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1354170965, now seen corresponding path program 2 times [2023-11-10 11:51:55,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:51:55,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466502045] [2023-11-10 11:51:55,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:51:55,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:51:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:51:56,070 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 11:51:56,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:51:56,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466502045] [2023-11-10 11:51:56,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466502045] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:51:56,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776766147] [2023-11-10 11:51:56,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-10 11:51:56,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:51:56,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:51:56,073 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 11:51:56,075 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 11:51:56,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-10 11:51:56,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:51:56,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-10 11:51:56,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:51:56,717 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 11:51:56,737 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 11:51:56,791 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 11:51:56,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:51:56,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776766147] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:51:56,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:51:56,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-11-10 11:51:56,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855502014] [2023-11-10 11:51:56,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:51:56,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:51:56,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:51:56,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:51:56,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-10 11:51:56,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 859 out of 971 [2023-11-10 11:51:56,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 924 places, 945 transitions, 2082 flow. Second operand has 7 states, 7 states have (on average 865.1428571428571) internal successors, (6056), 7 states have internal predecessors, (6056), 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 11:51:56,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:51:56,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 859 of 971 [2023-11-10 11:51:56,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:51:58,683 INFO L124 PetriNetUnfolderBase]: 1456/7046 cut-off events. [2023-11-10 11:51:58,683 INFO L125 PetriNetUnfolderBase]: For 443/506 co-relation queries the response was YES. [2023-11-10 11:51:58,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10177 conditions, 7046 events. 1456/7046 cut-off events. For 443/506 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 58370 event pairs, 637 based on Foata normal form. 63/6596 useless extension candidates. Maximal degree in co-relation 10062. Up to 860 conditions per place. [2023-11-10 11:51:58,734 INFO L140 encePairwiseOnDemand]: 959/971 looper letters, 158 selfloop transitions, 29 changer transitions 0/1050 dead transitions. [2023-11-10 11:51:58,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 933 places, 1050 transitions, 2738 flow [2023-11-10 11:51:58,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:51:58,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:51:58,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 8764 transitions. [2023-11-10 11:51:58,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9025746652935118 [2023-11-10 11:51:58,752 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 8764 transitions. [2023-11-10 11:51:58,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 8764 transitions. [2023-11-10 11:51:58,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:51:58,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 8764 transitions. [2023-11-10 11:51:58,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 876.4) internal successors, (8764), 10 states have internal predecessors, (8764), 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 11:51:58,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 971.0) internal successors, (10681), 11 states have internal predecessors, (10681), 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 11:51:58,782 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 971.0) internal successors, (10681), 11 states have internal predecessors, (10681), 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 11:51:58,782 INFO L175 Difference]: Start difference. First operand has 924 places, 945 transitions, 2082 flow. Second operand 10 states and 8764 transitions. [2023-11-10 11:51:58,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 933 places, 1050 transitions, 2738 flow [2023-11-10 11:51:58,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 927 places, 1050 transitions, 2712 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-11-10 11:51:58,808 INFO L231 Difference]: Finished difference. Result has 932 places, 966 transitions, 2216 flow [2023-11-10 11:51:58,809 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=971, PETRI_DIFFERENCE_MINUEND_FLOW=2056, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=928, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2216, PETRI_PLACES=932, PETRI_TRANSITIONS=966} [2023-11-10 11:51:58,812 INFO L281 CegarLoopForPetriNet]: 902 programPoint places, 30 predicate places. [2023-11-10 11:51:58,812 INFO L495 AbstractCegarLoop]: Abstraction has has 932 places, 966 transitions, 2216 flow [2023-11-10 11:51:58,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 865.1428571428571) internal successors, (6056), 7 states have internal predecessors, (6056), 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 11:51:58,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:51:58,815 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 11:51:58,825 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 11:51:59,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:51:59,026 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-10 11:51:59,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:51:59,026 INFO L85 PathProgramCache]: Analyzing trace with hash 74495358, now seen corresponding path program 1 times [2023-11-10 11:51:59,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:51:59,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299664146] [2023-11-10 11:51:59,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:51:59,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:51:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:51:59,794 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 11:51:59,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:51:59,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299664146] [2023-11-10 11:51:59,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299664146] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:51:59,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619211072] [2023-11-10 11:51:59,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:51:59,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:51:59,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:51:59,797 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 11:51:59,820 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 11:52:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:00,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 88 conjunts are in the unsatisfiable core [2023-11-10 11:52:00,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:00,793 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:00,794 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 11:52:00,826 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:00,826 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 11:52:00,856 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:00,857 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 11:52:00,911 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:00,912 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 11:52:00,972 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:00,974 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 11:52:01,024 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:01,025 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 11:52:01,079 INFO L322 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2023-11-10 11:52:01,083 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 11:52:01,299 INFO L322 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2023-11-10 11:52:01,299 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 44 treesize of output 81 [2023-11-10 11:52:01,750 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:01,751 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 11:52:01,793 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:01,794 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 11:52:01,842 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:01,843 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 11:52:01,882 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:01,882 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 11:52:01,924 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:01,924 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 11:52:01,972 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:01,973 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 11:52:02,019 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:02,020 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 11:52:02,067 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:02,068 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 11:52:02,117 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:02,117 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 11:52:02,159 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:02,160 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 11:52:02,209 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:02,210 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 11:52:02,264 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:02,264 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 11:52:02,312 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:02,312 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 11:52:02,442 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:02,442 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 11:52:02,569 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:02,569 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 11:52:03,323 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 11:52:03,423 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:03,424 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 11:52:03,450 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:52:03,450 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 11:52:03,715 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 11:52:03,789 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 11:52:03,818 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 11:52:03,865 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 11:52:03,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:03,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619211072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:03,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:03,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [9] total 21 [2023-11-10 11:52:03,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128352437] [2023-11-10 11:52:03,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:03,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-10 11:52:03,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:03,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-10 11:52:03,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2023-11-10 11:52:03,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 804 out of 971 [2023-11-10 11:52:03,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 932 places, 966 transitions, 2216 flow. Second operand has 14 states, 14 states have (on average 810.3571428571429) internal successors, (11345), 14 states have internal predecessors, (11345), 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 11:52:03,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:03,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 804 of 971 [2023-11-10 11:52:03,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:06,433 INFO L124 PetriNetUnfolderBase]: 1483/7353 cut-off events. [2023-11-10 11:52:06,433 INFO L125 PetriNetUnfolderBase]: For 1617/1678 co-relation queries the response was YES. [2023-11-10 11:52:06,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11818 conditions, 7353 events. 1483/7353 cut-off events. For 1617/1678 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 61795 event pairs, 502 based on Foata normal form. 80/6966 useless extension candidates. Maximal degree in co-relation 11669. Up to 822 conditions per place. [2023-11-10 11:52:06,519 INFO L140 encePairwiseOnDemand]: 953/971 looper letters, 180 selfloop transitions, 53 changer transitions 0/1047 dead transitions. [2023-11-10 11:52:06,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 946 places, 1047 transitions, 2968 flow [2023-11-10 11:52:06,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-10 11:52:06,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-10 11:52:06,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 12259 transitions. [2023-11-10 11:52:06,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8416752488843117 [2023-11-10 11:52:06,535 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 12259 transitions. [2023-11-10 11:52:06,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 12259 transitions. [2023-11-10 11:52:06,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:06,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 12259 transitions. [2023-11-10 11:52:06,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 817.2666666666667) internal successors, (12259), 15 states have internal predecessors, (12259), 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 11:52:06,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 971.0) internal successors, (15536), 16 states have internal predecessors, (15536), 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 11:52:06,577 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 971.0) internal successors, (15536), 16 states have internal predecessors, (15536), 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 11:52:06,578 INFO L175 Difference]: Start difference. First operand has 932 places, 966 transitions, 2216 flow. Second operand 15 states and 12259 transitions. [2023-11-10 11:52:06,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 946 places, 1047 transitions, 2968 flow [2023-11-10 11:52:06,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 946 places, 1047 transitions, 2968 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-10 11:52:06,608 INFO L231 Difference]: Finished difference. Result has 949 places, 988 transitions, 2492 flow [2023-11-10 11:52:06,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=971, PETRI_DIFFERENCE_MINUEND_FLOW=2216, PETRI_DIFFERENCE_MINUEND_PLACES=932, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2492, PETRI_PLACES=949, PETRI_TRANSITIONS=988} [2023-11-10 11:52:06,611 INFO L281 CegarLoopForPetriNet]: 902 programPoint places, 47 predicate places. [2023-11-10 11:52:06,611 INFO L495 AbstractCegarLoop]: Abstraction has has 949 places, 988 transitions, 2492 flow [2023-11-10 11:52:06,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 810.3571428571429) internal successors, (11345), 14 states have internal predecessors, (11345), 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 11:52:06,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:06,613 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] [2023-11-10 11:52:06,628 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 11:52:06,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:06,826 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-10 11:52:06,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:06,827 INFO L85 PathProgramCache]: Analyzing trace with hash 137586257, now seen corresponding path program 1 times [2023-11-10 11:52:06,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:06,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262119579] [2023-11-10 11:52:06,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:06,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:07,518 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 11:52:07,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:07,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262119579] [2023-11-10 11:52:07,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262119579] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:07,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358521164] [2023-11-10 11:52:07,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:07,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:07,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:07,521 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 11:52:07,523 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 11:52:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:08,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-10 11:52:08,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:08,720 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 11:52:08,720 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-10 11:52:08,913 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 11:52:08,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358521164] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-10 11:52:08,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-10 11:52:08,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2023-11-10 11:52:08,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143599670] [2023-11-10 11:52:08,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-10 11:52:08,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-10 11:52:08,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:08,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-10 11:52:08,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2023-11-10 11:52:08,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 901 out of 971 [2023-11-10 11:52:08,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 988 transitions, 2492 flow. Second operand has 21 states, 21 states have (on average 904.1904761904761) internal successors, (18988), 21 states have internal predecessors, (18988), 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 11:52:08,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:08,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 901 of 971 [2023-11-10 11:52:08,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:10,591 INFO L124 PetriNetUnfolderBase]: 124/2593 cut-off events. [2023-11-10 11:52:10,591 INFO L125 PetriNetUnfolderBase]: For 584/630 co-relation queries the response was YES. [2023-11-10 11:52:10,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3492 conditions, 2593 events. 124/2593 cut-off events. For 584/630 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 13245 event pairs, 3 based on Foata normal form. 8/2494 useless extension candidates. Maximal degree in co-relation 3416. Up to 46 conditions per place. [2023-11-10 11:52:10,613 INFO L140 encePairwiseOnDemand]: 955/971 looper letters, 56 selfloop transitions, 27 changer transitions 0/1031 dead transitions. [2023-11-10 11:52:10,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 969 places, 1031 transitions, 2808 flow [2023-11-10 11:52:10,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-10 11:52:10,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-10 11:52:10,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 19014 transitions. [2023-11-10 11:52:10,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9324702074444607 [2023-11-10 11:52:10,632 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 19014 transitions. [2023-11-10 11:52:10,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 19014 transitions. [2023-11-10 11:52:10,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:10,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 19014 transitions. [2023-11-10 11:52:10,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 905.4285714285714) internal successors, (19014), 21 states have internal predecessors, (19014), 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 11:52:10,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 971.0) internal successors, (21362), 22 states have internal predecessors, (21362), 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 11:52:10,676 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 971.0) internal successors, (21362), 22 states have internal predecessors, (21362), 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 11:52:10,677 INFO L175 Difference]: Start difference. First operand has 949 places, 988 transitions, 2492 flow. Second operand 21 states and 19014 transitions. [2023-11-10 11:52:10,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 969 places, 1031 transitions, 2808 flow [2023-11-10 11:52:10,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 962 places, 1031 transitions, 2733 flow, removed 20 selfloop flow, removed 7 redundant places. [2023-11-10 11:52:10,701 INFO L231 Difference]: Finished difference. Result has 973 places, 996 transitions, 2572 flow [2023-11-10 11:52:10,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=971, PETRI_DIFFERENCE_MINUEND_FLOW=2415, PETRI_DIFFERENCE_MINUEND_PLACES=942, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=985, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2572, PETRI_PLACES=973, PETRI_TRANSITIONS=996} [2023-11-10 11:52:10,703 INFO L281 CegarLoopForPetriNet]: 902 programPoint places, 71 predicate places. [2023-11-10 11:52:10,703 INFO L495 AbstractCegarLoop]: Abstraction has has 973 places, 996 transitions, 2572 flow [2023-11-10 11:52:10,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 904.1904761904761) internal successors, (18988), 21 states have internal predecessors, (18988), 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 11:52:10,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:10,706 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:52:10,726 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 11:52:10,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:10,926 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-10 11:52:10,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:10,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1245429217, now seen corresponding path program 2 times [2023-11-10 11:52:10,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:10,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239495453] [2023-11-10 11:52:10,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:10,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:12,164 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:52:12,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:12,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239495453] [2023-11-10 11:52:12,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239495453] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:12,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854245764] [2023-11-10 11:52:12,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-10 11:52:12,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:12,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:12,167 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 11:52:12,169 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 11:52:14,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-10 11:52:14,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:52:14,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-10 11:52:14,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:15,410 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:52:15,411 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-10 11:52:15,929 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:52:15,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854245764] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-10 11:52:15,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-10 11:52:15,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 39 [2023-11-10 11:52:15,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693223586] [2023-11-10 11:52:15,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-10 11:52:15,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-11-10 11:52:15,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:15,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-11-10 11:52:15,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=1099, Unknown=0, NotChecked=0, Total=1482 [2023-11-10 11:52:15,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 901 out of 971 [2023-11-10 11:52:15,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 973 places, 996 transitions, 2572 flow. Second operand has 39 states, 39 states have (on average 904.5641025641025) internal successors, (35278), 39 states have internal predecessors, (35278), 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 11:52:15,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:15,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 901 of 971 [2023-11-10 11:52:15,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:37,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-10 11:52:50,519 INFO L124 PetriNetUnfolderBase]: 124/2740 cut-off events. [2023-11-10 11:52:50,519 INFO L125 PetriNetUnfolderBase]: For 1118/1141 co-relation queries the response was YES. [2023-11-10 11:52:50,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3841 conditions, 2740 events. 124/2740 cut-off events. For 1118/1141 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 13273 event pairs, 2 based on Foata normal form. 22/2656 useless extension candidates. Maximal degree in co-relation 3758. Up to 34 conditions per place. [2023-11-10 11:52:50,538 INFO L140 encePairwiseOnDemand]: 955/971 looper letters, 110 selfloop transitions, 45 changer transitions 0/1103 dead transitions. [2023-11-10 11:52:50,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1011 places, 1103 transitions, 3393 flow [2023-11-10 11:52:50,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-10 11:52:50,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-11-10 11:52:50,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 35312 transitions. [2023-11-10 11:52:50,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9324777522511817 [2023-11-10 11:52:50,564 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 35312 transitions. [2023-11-10 11:52:50,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 35312 transitions. [2023-11-10 11:52:50,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:50,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 35312 transitions. [2023-11-10 11:52:50,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 905.4358974358975) internal successors, (35312), 39 states have internal predecessors, (35312), 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 11:52:50,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 971.0) internal successors, (38840), 40 states have internal predecessors, (38840), 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 11:52:50,642 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 971.0) internal successors, (38840), 40 states have internal predecessors, (38840), 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 11:52:50,643 INFO L175 Difference]: Start difference. First operand has 973 places, 996 transitions, 2572 flow. Second operand 39 states and 35312 transitions. [2023-11-10 11:52:50,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1011 places, 1103 transitions, 3393 flow [2023-11-10 11:52:50,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1004 places, 1103 transitions, 3373 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-10 11:52:50,666 INFO L231 Difference]: Finished difference. Result has 1024 places, 1016 transitions, 2903 flow [2023-11-10 11:52:50,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=971, PETRI_DIFFERENCE_MINUEND_FLOW=2552, PETRI_DIFFERENCE_MINUEND_PLACES=966, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=996, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=969, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=2903, PETRI_PLACES=1024, PETRI_TRANSITIONS=1016} [2023-11-10 11:52:50,668 INFO L281 CegarLoopForPetriNet]: 902 programPoint places, 122 predicate places. [2023-11-10 11:52:50,668 INFO L495 AbstractCegarLoop]: Abstraction has has 1024 places, 1016 transitions, 2903 flow [2023-11-10 11:52:50,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 904.5641025641025) internal successors, (35278), 39 states have internal predecessors, (35278), 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 11:52:50,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:50,674 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:52:50,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-10 11:52:50,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:50,886 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-10 11:52:50,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:50,886 INFO L85 PathProgramCache]: Analyzing trace with hash 386096509, now seen corresponding path program 3 times [2023-11-10 11:52:50,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:50,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732680126] [2023-11-10 11:52:50,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:50,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:53,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1870 backedges. 0 proven. 1870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:52:53,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:53,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732680126] [2023-11-10 11:52:53,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732680126] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:53,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78028684] [2023-11-10 11:52:53,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-10 11:52:53,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:53,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:53,405 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 11:52:53,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process Received shutdown request... [2023-11-10 12:00:54,598 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-10 12:00:54,598 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-10 12:00:55,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-11-10 12:00:55,799 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forcibly destroying the process [2023-11-10 12:00:55,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 137 [2023-11-10 12:00:55,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-10 12:00:55,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-10 12:00:55,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2023-11-10 12:00:55,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142079102] [2023-11-10 12:00:55,816 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-10 12:00:55,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-10 12:00:55,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:00:55,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-10 12:00:55,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2023-11-10 12:00:55,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 901 out of 971 [2023-11-10 12:00:55,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1024 places, 1016 transitions, 2903 flow. Second operand has 27 states, 27 states have (on average 904.6666666666666) internal successors, (24426), 27 states have internal predecessors, (24426), 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 12:00:55,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:00:55,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 901 of 971 [2023-11-10 12:00:55,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:00:55,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-10 12:00:55,853 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2023-11-10 12:00:55,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-10 12:00:55,853 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 901/971 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 52 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). [2023-11-10 12:00:55,855 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2023-11-10 12:00:55,855 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 9 remaining) [2023-11-10 12:00:55,855 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2023-11-10 12:00:55,855 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2023-11-10 12:00:55,855 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2023-11-10 12:00:55,856 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2023-11-10 12:00:55,856 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2023-11-10 12:00:55,856 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2023-11-10 12:00:55,856 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2023-11-10 12:00:55,862 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 12:00:55,863 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 12:00:55,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:00:55 BasicIcfg [2023-11-10 12:00:55,870 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 12:00:55,870 INFO L158 Benchmark]: Toolchain (without parser) took 557030.97ms. Allocated memory was 168.8MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 108.7MB in the beginning and 616.9MB in the end (delta: -508.2MB). Peak memory consumption was 525.9MB. Max. memory is 8.0GB. [2023-11-10 12:00:55,870 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 168.8MB. Free memory is still 120.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 12:00:55,870 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4763.42ms. Allocated memory was 168.8MB in the beginning and 228.6MB in the end (delta: 59.8MB). Free memory was 108.4MB in the beginning and 88.2MB in the end (delta: 20.2MB). Peak memory consumption was 148.9MB. Max. memory is 8.0GB. [2023-11-10 12:00:55,871 INFO L158 Benchmark]: Boogie Procedure Inliner took 207.35ms. Allocated memory is still 228.6MB. Free memory was 88.2MB in the beginning and 76.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-11-10 12:00:55,871 INFO L158 Benchmark]: Boogie Preprocessor took 82.17ms. Allocated memory is still 228.6MB. Free memory was 76.1MB in the beginning and 69.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-11-10 12:00:55,873 INFO L158 Benchmark]: RCFGBuilder took 1350.76ms. Allocated memory is still 228.6MB. Free memory was 69.8MB in the beginning and 92.4MB in the end (delta: -22.6MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. [2023-11-10 12:00:55,873 INFO L158 Benchmark]: TraceAbstraction took 550619.41ms. Allocated memory was 228.6MB in the beginning and 1.2GB in the end (delta: 974.1MB). Free memory was 91.9MB in the beginning and 616.9MB in the end (delta: -525.0MB). Peak memory consumption was 449.7MB. Max. memory is 8.0GB. [2023-11-10 12:00:55,875 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 168.8MB. Free memory is still 120.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4763.42ms. Allocated memory was 168.8MB in the beginning and 228.6MB in the end (delta: 59.8MB). Free memory was 108.4MB in the beginning and 88.2MB in the end (delta: 20.2MB). Peak memory consumption was 148.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 207.35ms. Allocated memory is still 228.6MB. Free memory was 88.2MB in the beginning and 76.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 82.17ms. Allocated memory is still 228.6MB. Free memory was 76.1MB in the beginning and 69.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1350.76ms. Allocated memory is still 228.6MB. Free memory was 69.8MB in the beginning and 92.4MB in the end (delta: -22.6MB). Peak memory consumption was 9.9MB. Max. memory is 8.0GB. * TraceAbstraction took 550619.41ms. Allocated memory was 228.6MB in the beginning and 1.2GB in the end (delta: 974.1MB). Free memory was 91.9MB in the beginning and 616.9MB in the end (delta: -525.0MB). Peak memory consumption was 449.7MB. 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: - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 901/971 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 52 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 901/971 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 52 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 7068]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 901/971 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 52 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 7069]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 901/971 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 52 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 901/971 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 52 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 901/971 universal loopers) in iteration 10,while PetriNetUnfolder was constructing finite prefix that currently has 52 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 1167 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 550.4s, OverallIterations: 10, TraceHistogramMax: 22, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 44.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1505 SdHoareTripleChecker+Valid, 11.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1505 mSDsluCounter, 1446 SdHoareTripleChecker+Invalid, 11.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1130 mSDsCounter, 173 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3002 IncrementalHoareTripleChecker+Invalid, 3175 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 173 mSolverCounterUnsat, 316 mSDtfsCounter, 3002 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3405 GetRequests, 3156 SyntacticMatches, 0 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2069 ImplicationChecksByTransitivity, 27.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2903occurred in iteration=9, InterpolantAutomatonStates: 139, 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: 0.6s SsaConstructionTime, 5.5s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 5444 NumberOfCodeBlocks, 5412 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 6540 ConstructedInterpolants, 3 QuantifiedInterpolants, 16120 SizeOfPredicates, 54 NumberOfNonLiveVariables, 6718 ConjunctsInSsa, 170 ConjunctsInUnsatCore, 19 InterpolantComputations, 6 PerfectInterpolantSequences, 105/3349 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown