/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_configure_pc8736x_gpio_current.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:51:44,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:51:45,039 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 11:51:45,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:51:45,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:51:45,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:51:45,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:51:45,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:51:45,078 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:51:45,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:51:45,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:51:45,082 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:51:45,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:51:45,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:51:45,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:51:45,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:51:45,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:51:45,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:51:45,084 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:51:45,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:51:45,085 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:51:45,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:51:45,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:51:45,086 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:51:45,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:51:45,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:51:45,086 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:51:45,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:51:45,087 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:51:45,087 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:51:45,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:51:45,088 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:51:45,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:51:45,088 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:51:45,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:51:45,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:51:45,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:51:45,361 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:51:45,361 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:51:45,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i [2023-11-10 11:51:46,542 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:51:47,030 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:51:47,031 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i [2023-11-10 11:51:47,077 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8df12a8e8/c480b5b5f65341e59351fa2b4d1ae188/FLAG3c14def38 [2023-11-10 11:51:47,092 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8df12a8e8/c480b5b5f65341e59351fa2b4d1ae188 [2023-11-10 11:51:47,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:51:47,099 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:51:47,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:51:47,102 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:51:47,106 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:51:47,107 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:51:47" (1/1) ... [2023-11-10 11:51:47,108 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@251ab366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:47, skipping insertion in model container [2023-11-10 11:51:47,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:51:47" (1/1) ... [2023-11-10 11:51:47,229 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:51:47,604 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_configure_pc8736x_gpio_current.i[5469,5482] [2023-11-10 11:51:53,402 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-10 11:51:54,152 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:51:54,152 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:51:54,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:51:54,229 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:51:54,241 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_configure_pc8736x_gpio_current.i[5469,5482] [2023-11-10 11:51:54,311 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 11:51:54,313 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 11:51:54,313 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 11:51:54,313 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 11:51:54,393 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-10 11:51:54,415 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-10 11:51:54,446 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:51:54,447 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:51:54,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:51:54,822 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:51:54,822 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:51:54,822 WARN L672 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:51:54,822 WARN L672 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:51:54,822 WARN L672 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:51:54,822 WARN L672 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:51:54,822 WARN L672 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:51:54,829 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:51:54,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:54 WrapperNode [2023-11-10 11:51:54,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:51:54,831 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:51:54,831 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:51:54,831 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:51:54,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:54" (1/1) ... [2023-11-10 11:51:54,959 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:54" (1/1) ... [2023-11-10 11:51:55,026 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 68, statements flattened = 732 [2023-11-10 11:51:55,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:51:55,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:51:55,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:51:55,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:51:55,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:54" (1/1) ... [2023-11-10 11:51:55,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:54" (1/1) ... [2023-11-10 11:51:55,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:54" (1/1) ... [2023-11-10 11:51:55,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:54" (1/1) ... [2023-11-10 11:51:55,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:54" (1/1) ... [2023-11-10 11:51:55,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:54" (1/1) ... [2023-11-10 11:51:55,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:54" (1/1) ... [2023-11-10 11:51:55,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:54" (1/1) ... [2023-11-10 11:51:55,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:51:55,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:51:55,139 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:51:55,140 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:51:55,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:54" (1/1) ... [2023-11-10 11:51:55,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:51:55,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:51:55,183 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 11:51:55,206 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 11:51:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-10 11:51:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-10 11:51:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:51:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-10 11:51:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-11-10 11:51:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-11-10 11:51:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:51:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:51:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-10 11:51:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:51:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-10 11:51:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:51:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2023-11-10 11:51:55,221 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2023-11-10 11:51:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-10 11:51:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:51:55,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-10 11:51:55,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-10 11:51:55,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:51:55,224 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 11:51:55,624 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:51:55,625 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:51:56,414 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:51:56,452 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:51:56,452 INFO L302 CfgBuilder]: Removed 19 assume(true) statements. [2023-11-10 11:51:56,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:51:56 BoogieIcfgContainer [2023-11-10 11:51:56,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:51:56,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:51:56,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:51:56,508 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:51:56,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:51:47" (1/3) ... [2023-11-10 11:51:56,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ef9a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:51:56, skipping insertion in model container [2023-11-10 11:51:56,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:51:54" (2/3) ... [2023-11-10 11:51:56,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ef9a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:51:56, skipping insertion in model container [2023-11-10 11:51:56,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:51:56" (3/3) ... [2023-11-10 11:51:56,511 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i [2023-11-10 11:51:56,527 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:51:56,528 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-10 11:51:56,528 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:51:56,640 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-10 11:51:56,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 881 places, 921 transitions, 1856 flow [2023-11-10 11:51:56,949 INFO L124 PetriNetUnfolderBase]: 47/919 cut-off events. [2023-11-10 11:51:56,949 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-10 11:51:56,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 928 conditions, 919 events. 47/919 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1263 event pairs, 0 based on Foata normal form. 0/870 useless extension candidates. Maximal degree in co-relation 709. Up to 9 conditions per place. [2023-11-10 11:51:56,961 INFO L82 GeneralOperation]: Start removeDead. Operand has 881 places, 921 transitions, 1856 flow [2023-11-10 11:51:56,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 870 places, 910 transitions, 1829 flow [2023-11-10 11:51:56,990 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:51:56,997 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;@781081b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:51:56,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-10 11:51:57,073 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:51:57,074 INFO L124 PetriNetUnfolderBase]: 6/315 cut-off events. [2023-11-10 11:51:57,074 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:51:57,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:51:57,075 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] [2023-11-10 11:51:57,078 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:51:57,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:51:57,084 INFO L85 PathProgramCache]: Analyzing trace with hash 2080015899, now seen corresponding path program 1 times [2023-11-10 11:51:57,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:51:57,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673003852] [2023-11-10 11:51:57,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:51:57,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:51:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:51:58,033 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 11:51:58,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:51:58,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673003852] [2023-11-10 11:51:58,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673003852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:51:58,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:51:58,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-10 11:51:58,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835781190] [2023-11-10 11:51:58,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:51:58,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-10 11:51:58,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:51:58,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-10 11:51:58,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-10 11:51:58,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 855 out of 921 [2023-11-10 11:51:58,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 870 places, 910 transitions, 1829 flow. Second operand has 9 states, 9 states have (on average 857.3333333333334) internal successors, (7716), 9 states have internal predecessors, (7716), 0 states have call successors, (0), 0 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 11:51:58,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:51:58,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 855 of 921 [2023-11-10 11:51:58,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:51:58,614 INFO L124 PetriNetUnfolderBase]: 34/1061 cut-off events. [2023-11-10 11:51:58,616 INFO L125 PetriNetUnfolderBase]: For 12/13 co-relation queries the response was YES. [2023-11-10 11:51:58,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1116 conditions, 1061 events. 34/1061 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2081 event pairs, 2 based on Foata normal form. 16/1041 useless extension candidates. Maximal degree in co-relation 717. Up to 18 conditions per place. [2023-11-10 11:51:58,623 INFO L140 encePairwiseOnDemand]: 881/921 looper letters, 23 selfloop transitions, 17 changer transitions 3/882 dead transitions. [2023-11-10 11:51:58,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 882 places, 882 transitions, 1853 flow [2023-11-10 11:51:58,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-10 11:51:58,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-10 11:51:58,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 15453 transitions. [2023-11-10 11:51:58,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9321389793702497 [2023-11-10 11:51:58,668 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 15453 transitions. [2023-11-10 11:51:58,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 15453 transitions. [2023-11-10 11:51:58,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:51:58,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 15453 transitions. [2023-11-10 11:51:58,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 858.5) internal successors, (15453), 18 states have internal predecessors, (15453), 0 states have call successors, (0), 0 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 11:51:58,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 921.0) internal successors, (17499), 19 states have internal predecessors, (17499), 0 states have call successors, (0), 0 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 11:51:58,774 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 921.0) internal successors, (17499), 19 states have internal predecessors, (17499), 0 states have call successors, (0), 0 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 11:51:58,776 INFO L175 Difference]: Start difference. First operand has 870 places, 910 transitions, 1829 flow. Second operand 18 states and 15453 transitions. [2023-11-10 11:51:58,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 882 places, 882 transitions, 1853 flow [2023-11-10 11:51:58,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 879 places, 882 transitions, 1848 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-10 11:51:58,801 INFO L231 Difference]: Finished difference. Result has 879 places, 879 transitions, 1796 flow [2023-11-10 11:51:58,804 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=1768, PETRI_DIFFERENCE_MINUEND_PLACES=862, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=882, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=865, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1796, PETRI_PLACES=879, PETRI_TRANSITIONS=879} [2023-11-10 11:51:58,807 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 9 predicate places. [2023-11-10 11:51:58,807 INFO L495 AbstractCegarLoop]: Abstraction has has 879 places, 879 transitions, 1796 flow [2023-11-10 11:51:58,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 857.3333333333334) internal successors, (7716), 9 states have internal predecessors, (7716), 0 states have call successors, (0), 0 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 11:51:58,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:51:58,812 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] [2023-11-10 11:51:58,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:51:58,812 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:51:58,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:51:58,813 INFO L85 PathProgramCache]: Analyzing trace with hash 2145550227, now seen corresponding path program 1 times [2023-11-10 11:51:58,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:51:58,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486885609] [2023-11-10 11:51:58,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:51:58,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:51:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:51:59,350 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 11:51:59,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:51:59,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486885609] [2023-11-10 11:51:59,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486885609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:51:59,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:51:59,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-10 11:51:59,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663838017] [2023-11-10 11:51:59,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:51:59,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-10 11:51:59,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:51:59,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-10 11:51:59,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-10 11:51:59,359 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 865 out of 921 [2023-11-10 11:51:59,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 879 places, 879 transitions, 1796 flow. Second operand has 5 states, 5 states have (on average 867.0) internal successors, (4335), 5 states have internal predecessors, (4335), 0 states have call successors, (0), 0 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 11:51:59,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:51:59,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 865 of 921 [2023-11-10 11:51:59,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:51:59,684 INFO L124 PetriNetUnfolderBase]: 34/1065 cut-off events. [2023-11-10 11:51:59,684 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-10 11:51:59,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1127 conditions, 1065 events. 34/1065 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2063 event pairs, 2 based on Foata normal form. 0/1030 useless extension candidates. Maximal degree in co-relation 735. Up to 24 conditions per place. [2023-11-10 11:51:59,690 INFO L140 encePairwiseOnDemand]: 914/921 looper letters, 29 selfloop transitions, 6 changer transitions 0/883 dead transitions. [2023-11-10 11:51:59,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 880 places, 883 transitions, 1874 flow [2023-11-10 11:51:59,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-10 11:51:59,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-10 11:51:59,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4361 transitions. [2023-11-10 11:51:59,699 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9470141150922909 [2023-11-10 11:51:59,699 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 4361 transitions. [2023-11-10 11:51:59,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 4361 transitions. [2023-11-10 11:51:59,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:51:59,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 4361 transitions. [2023-11-10 11:51:59,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 872.2) internal successors, (4361), 5 states have internal predecessors, (4361), 0 states have call successors, (0), 0 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 11:51:59,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 921.0) internal successors, (5526), 6 states have internal predecessors, (5526), 0 states have call successors, (0), 0 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 11:51:59,719 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 921.0) internal successors, (5526), 6 states have internal predecessors, (5526), 0 states have call successors, (0), 0 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 11:51:59,719 INFO L175 Difference]: Start difference. First operand has 879 places, 879 transitions, 1796 flow. Second operand 5 states and 4361 transitions. [2023-11-10 11:51:59,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 880 places, 883 transitions, 1874 flow [2023-11-10 11:51:59,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 863 places, 883 transitions, 1840 flow, removed 0 selfloop flow, removed 17 redundant places. [2023-11-10 11:51:59,736 INFO L231 Difference]: Finished difference. Result has 864 places, 880 transitions, 1782 flow [2023-11-10 11:51:59,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=1762, PETRI_DIFFERENCE_MINUEND_PLACES=859, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=879, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=873, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1782, PETRI_PLACES=864, PETRI_TRANSITIONS=880} [2023-11-10 11:51:59,739 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, -6 predicate places. [2023-11-10 11:51:59,739 INFO L495 AbstractCegarLoop]: Abstraction has has 864 places, 880 transitions, 1782 flow [2023-11-10 11:51:59,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 867.0) internal successors, (4335), 5 states have internal predecessors, (4335), 0 states have call successors, (0), 0 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 11:51:59,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:51:59,741 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] [2023-11-10 11:51:59,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:51:59,741 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:51:59,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:51:59,742 INFO L85 PathProgramCache]: Analyzing trace with hash 385691598, now seen corresponding path program 1 times [2023-11-10 11:51:59,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:51:59,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367561747] [2023-11-10 11:51:59,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:51:59,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:51:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:00,359 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 11:52:00,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:00,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367561747] [2023-11-10 11:52:00,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367561747] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:00,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952448456] [2023-11-10 11:52:00,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:00,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:00,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:00,364 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 11:52:00,365 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 11:52:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:00,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-10 11:52:00,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:00,902 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 11:52:00,949 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 11:52:00,950 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:00,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952448456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:00,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:00,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2023-11-10 11:52:00,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247716783] [2023-11-10 11:52:00,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:00,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:52:00,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:00,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:52:00,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-10 11:52:00,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 837 out of 921 [2023-11-10 11:52:00,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 864 places, 880 transitions, 1782 flow. Second operand has 7 states, 7 states have (on average 842.0) internal successors, (5894), 7 states have internal predecessors, (5894), 0 states have call successors, (0), 0 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 11:52:00,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:00,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 837 of 921 [2023-11-10 11:52:00,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:02,725 INFO L124 PetriNetUnfolderBase]: 636/7317 cut-off events. [2023-11-10 11:52:02,725 INFO L125 PetriNetUnfolderBase]: For 2/4 co-relation queries the response was YES. [2023-11-10 11:52:02,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8111 conditions, 7317 events. 636/7317 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 62156 event pairs, 100 based on Foata normal form. 0/6902 useless extension candidates. Maximal degree in co-relation 7883. Up to 390 conditions per place. [2023-11-10 11:52:02,764 INFO L140 encePairwiseOnDemand]: 907/921 looper letters, 85 selfloop transitions, 30 changer transitions 12/944 dead transitions. [2023-11-10 11:52:02,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 874 places, 944 transitions, 2172 flow [2023-11-10 11:52:02,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 11:52:02,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 11:52:02,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 9331 transitions. [2023-11-10 11:52:02,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9210344487217451 [2023-11-10 11:52:02,781 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 9331 transitions. [2023-11-10 11:52:02,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 9331 transitions. [2023-11-10 11:52:02,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:02,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 9331 transitions. [2023-11-10 11:52:02,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 848.2727272727273) internal successors, (9331), 11 states have internal predecessors, (9331), 0 states have call successors, (0), 0 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 11:52:02,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 921.0) internal successors, (11052), 12 states have internal predecessors, (11052), 0 states have call successors, (0), 0 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 11:52:02,819 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 921.0) internal successors, (11052), 12 states have internal predecessors, (11052), 0 states have call successors, (0), 0 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 11:52:02,820 INFO L175 Difference]: Start difference. First operand has 864 places, 880 transitions, 1782 flow. Second operand 11 states and 9331 transitions. [2023-11-10 11:52:02,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 874 places, 944 transitions, 2172 flow [2023-11-10 11:52:02,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 871 places, 944 transitions, 2162 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-10 11:52:02,840 INFO L231 Difference]: Finished difference. Result has 876 places, 906 transitions, 1942 flow [2023-11-10 11:52:02,842 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=1772, PETRI_DIFFERENCE_MINUEND_PLACES=861, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=880, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=867, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1942, PETRI_PLACES=876, PETRI_TRANSITIONS=906} [2023-11-10 11:52:02,842 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 6 predicate places. [2023-11-10 11:52:02,843 INFO L495 AbstractCegarLoop]: Abstraction has has 876 places, 906 transitions, 1942 flow [2023-11-10 11:52:02,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 842.0) internal successors, (5894), 7 states have internal predecessors, (5894), 0 states have call successors, (0), 0 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 11:52:02,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:02,845 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] [2023-11-10 11:52:02,856 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 11:52:03,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:03,054 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:52:03,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:03,055 INFO L85 PathProgramCache]: Analyzing trace with hash -590947067, now seen corresponding path program 1 times [2023-11-10 11:52:03,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:03,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421205065] [2023-11-10 11:52:03,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:03,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:03,519 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 11:52:03,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:03,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421205065] [2023-11-10 11:52:03,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421205065] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:03,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746755368] [2023-11-10 11:52:03,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:03,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:03,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:03,522 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 11:52:03,525 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 11:52:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:03,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-10 11:52:03,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:03,961 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 11:52:03,965 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 15 treesize of output 11 [2023-11-10 11:52:03,984 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 21 treesize of output 9 [2023-11-10 11:52:03,987 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 11:52:04,015 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 11:52:04,016 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:04,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746755368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:04,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:04,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2023-11-10 11:52:04,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087535411] [2023-11-10 11:52:04,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:04,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:52:04,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:04,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:52:04,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-10 11:52:04,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 849 out of 921 [2023-11-10 11:52:04,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 876 places, 906 transitions, 1942 flow. Second operand has 6 states, 6 states have (on average 853.8333333333334) internal successors, (5123), 6 states have internal predecessors, (5123), 0 states have call successors, (0), 0 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 11:52:04,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:04,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 849 of 921 [2023-11-10 11:52:04,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:04,751 INFO L124 PetriNetUnfolderBase]: 158/2984 cut-off events. [2023-11-10 11:52:04,752 INFO L125 PetriNetUnfolderBase]: For 64/65 co-relation queries the response was YES. [2023-11-10 11:52:04,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3280 conditions, 2984 events. 158/2984 cut-off events. For 64/65 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 16805 event pairs, 3 based on Foata normal form. 0/2858 useless extension candidates. Maximal degree in co-relation 3076. Up to 91 conditions per place. [2023-11-10 11:52:04,774 INFO L140 encePairwiseOnDemand]: 909/921 looper letters, 58 selfloop transitions, 11 changer transitions 0/911 dead transitions. [2023-11-10 11:52:04,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 873 places, 911 transitions, 2090 flow [2023-11-10 11:52:04,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-10 11:52:04,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-10 11:52:04,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5146 transitions. [2023-11-10 11:52:04,783 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.931234165761853 [2023-11-10 11:52:04,783 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 5146 transitions. [2023-11-10 11:52:04,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 5146 transitions. [2023-11-10 11:52:04,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:04,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 5146 transitions. [2023-11-10 11:52:04,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 857.6666666666666) internal successors, (5146), 6 states have internal predecessors, (5146), 0 states have call successors, (0), 0 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 11:52:04,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 921.0) internal successors, (6447), 7 states have internal predecessors, (6447), 0 states have call successors, (0), 0 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 11:52:04,813 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 921.0) internal successors, (6447), 7 states have internal predecessors, (6447), 0 states have call successors, (0), 0 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 11:52:04,813 INFO L175 Difference]: Start difference. First operand has 876 places, 906 transitions, 1942 flow. Second operand 6 states and 5146 transitions. [2023-11-10 11:52:04,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 873 places, 911 transitions, 2090 flow [2023-11-10 11:52:04,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 873 places, 911 transitions, 2090 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-10 11:52:04,833 INFO L231 Difference]: Finished difference. Result has 874 places, 908 transitions, 1983 flow [2023-11-10 11:52:04,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=1938, PETRI_DIFFERENCE_MINUEND_PLACES=868, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=904, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=893, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1983, PETRI_PLACES=874, PETRI_TRANSITIONS=908} [2023-11-10 11:52:04,837 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 4 predicate places. [2023-11-10 11:52:04,837 INFO L495 AbstractCegarLoop]: Abstraction has has 874 places, 908 transitions, 1983 flow [2023-11-10 11:52:04,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 853.8333333333334) internal successors, (5123), 6 states have internal predecessors, (5123), 0 states have call successors, (0), 0 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 11:52:04,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:04,839 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] [2023-11-10 11:52:04,848 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 11:52:05,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-10 11:52:05,046 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:52:05,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:05,047 INFO L85 PathProgramCache]: Analyzing trace with hash 247702184, now seen corresponding path program 1 times [2023-11-10 11:52:05,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:05,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147672032] [2023-11-10 11:52:05,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:05,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:05,531 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 11:52:05,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:05,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147672032] [2023-11-10 11:52:05,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147672032] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:05,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268059549] [2023-11-10 11:52:05,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:05,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:05,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:05,534 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 11:52:05,560 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 11:52:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:06,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 86 conjunts are in the unsatisfiable core [2023-11-10 11:52:06,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:06,326 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:06,327 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 11:52:06,401 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:06,401 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 11:52:06,468 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:06,468 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 11:52:06,545 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:06,545 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 11:52:06,611 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:06,612 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 11:52:06,658 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:06,658 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 11:52:06,704 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:06,704 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 11:52:06,747 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:06,747 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 11:52:06,792 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:06,792 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 11:52:06,842 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:06,843 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 11:52:06,891 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:06,892 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 11:52:06,971 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:06,972 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:52:07,015 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:07,016 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 11:52:07,058 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:07,058 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 11:52:07,101 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:07,101 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 11:52:07,145 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:07,146 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 11:52:07,186 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:07,186 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 11:52:07,232 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:07,233 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 11:52:07,279 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:07,280 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 11:52:07,322 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:07,322 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 11:52:07,379 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:07,379 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 11:52:07,565 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:07,565 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 11:52:07,708 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:07,708 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 11:52:08,229 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 11:52:08,326 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:08,326 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 11:52:08,354 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:52:08,354 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 11:52:08,443 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 11:52:08,482 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 11:52:08,520 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 11:52:08,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:08,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268059549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:08,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:08,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2023-11-10 11:52:08,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599671864] [2023-11-10 11:52:08,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:08,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-10 11:52:08,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:08,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-10 11:52:08,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-11-10 11:52:08,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 775 out of 921 [2023-11-10 11:52:08,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 874 places, 908 transitions, 1983 flow. Second operand has 15 states, 15 states have (on average 780.8) internal successors, (11712), 15 states have internal predecessors, (11712), 0 states have call successors, (0), 0 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 11:52:08,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:08,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 775 of 921 [2023-11-10 11:52:08,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:11,336 INFO L124 PetriNetUnfolderBase]: 741/9746 cut-off events. [2023-11-10 11:52:11,336 INFO L125 PetriNetUnfolderBase]: For 280/1438 co-relation queries the response was YES. [2023-11-10 11:52:11,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11074 conditions, 9746 events. 741/9746 cut-off events. For 280/1438 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 91903 event pairs, 71 based on Foata normal form. 75/9319 useless extension candidates. Maximal degree in co-relation 10796. Up to 257 conditions per place. [2023-11-10 11:52:11,386 INFO L140 encePairwiseOnDemand]: 898/921 looper letters, 134 selfloop transitions, 61 changer transitions 4/959 dead transitions. [2023-11-10 11:52:11,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 890 places, 959 transitions, 2553 flow [2023-11-10 11:52:11,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-10 11:52:11,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-10 11:52:11,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 13344 transitions. [2023-11-10 11:52:11,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8522705499137766 [2023-11-10 11:52:11,412 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 13344 transitions. [2023-11-10 11:52:11,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 13344 transitions. [2023-11-10 11:52:11,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:11,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 13344 transitions. [2023-11-10 11:52:11,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 784.9411764705883) internal successors, (13344), 17 states have internal predecessors, (13344), 0 states have call successors, (0), 0 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 11:52:11,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 921.0) internal successors, (16578), 18 states have internal predecessors, (16578), 0 states have call successors, (0), 0 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 11:52:11,457 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 921.0) internal successors, (16578), 18 states have internal predecessors, (16578), 0 states have call successors, (0), 0 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 11:52:11,458 INFO L175 Difference]: Start difference. First operand has 874 places, 908 transitions, 1983 flow. Second operand 17 states and 13344 transitions. [2023-11-10 11:52:11,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 890 places, 959 transitions, 2553 flow [2023-11-10 11:52:11,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 886 places, 959 transitions, 2538 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-10 11:52:11,479 INFO L231 Difference]: Finished difference. Result has 891 places, 932 transitions, 2252 flow [2023-11-10 11:52:11,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=1968, PETRI_DIFFERENCE_MINUEND_PLACES=870, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=908, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=862, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2252, PETRI_PLACES=891, PETRI_TRANSITIONS=932} [2023-11-10 11:52:11,484 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 21 predicate places. [2023-11-10 11:52:11,485 INFO L495 AbstractCegarLoop]: Abstraction has has 891 places, 932 transitions, 2252 flow [2023-11-10 11:52:11,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 780.8) internal successors, (11712), 15 states have internal predecessors, (11712), 0 states have call successors, (0), 0 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 11:52:11,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:11,490 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] [2023-11-10 11:52:11,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-10 11:52:11,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:11,699 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:52:11,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:11,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1339767986, now seen corresponding path program 1 times [2023-11-10 11:52:11,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:11,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357604379] [2023-11-10 11:52:11,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:11,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:12,161 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 11:52:12,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:12,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357604379] [2023-11-10 11:52:12,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357604379] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:12,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178271980] [2023-11-10 11:52:12,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:12,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:12,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:12,163 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 11:52:12,166 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 11:52:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:12,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-10 11:52:12,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:13,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:52:13,550 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 11:52:13,574 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 11:52:13,615 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 11:52:13,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:13,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178271980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:13,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:13,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2023-11-10 11:52:13,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001719568] [2023-11-10 11:52:13,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:13,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:52:13,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:13,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:52:13,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-11-10 11:52:13,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 830 out of 921 [2023-11-10 11:52:13,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 891 places, 932 transitions, 2252 flow. Second operand has 12 states, 12 states have (on average 833.5) internal successors, (10002), 12 states have internal predecessors, (10002), 0 states have call successors, (0), 0 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 11:52:13,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:13,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 830 of 921 [2023-11-10 11:52:13,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:17,230 INFO L124 PetriNetUnfolderBase]: 2084/15509 cut-off events. [2023-11-10 11:52:17,230 INFO L125 PetriNetUnfolderBase]: For 2124/2146 co-relation queries the response was YES. [2023-11-10 11:52:17,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20442 conditions, 15509 events. 2084/15509 cut-off events. For 2124/2146 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 158559 event pairs, 471 based on Foata normal form. 18/14767 useless extension candidates. Maximal degree in co-relation 20197. Up to 1154 conditions per place. [2023-11-10 11:52:17,299 INFO L140 encePairwiseOnDemand]: 901/921 looper letters, 110 selfloop transitions, 37 changer transitions 169/1124 dead transitions. [2023-11-10 11:52:17,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 913 places, 1124 transitions, 3604 flow [2023-11-10 11:52:17,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-10 11:52:17,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-10 11:52:17,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 19336 transitions. [2023-11-10 11:52:17,329 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9128074399282443 [2023-11-10 11:52:17,329 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 19336 transitions. [2023-11-10 11:52:17,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 19336 transitions. [2023-11-10 11:52:17,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:17,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 19336 transitions. [2023-11-10 11:52:17,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 840.695652173913) internal successors, (19336), 23 states have internal predecessors, (19336), 0 states have call successors, (0), 0 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 11:52:17,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 921.0) internal successors, (22104), 24 states have internal predecessors, (22104), 0 states have call successors, (0), 0 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 11:52:17,380 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 921.0) internal successors, (22104), 24 states have internal predecessors, (22104), 0 states have call successors, (0), 0 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 11:52:17,380 INFO L175 Difference]: Start difference. First operand has 891 places, 932 transitions, 2252 flow. Second operand 23 states and 19336 transitions. [2023-11-10 11:52:17,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 913 places, 1124 transitions, 3604 flow [2023-11-10 11:52:17,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 906 places, 1124 transitions, 3548 flow, removed 14 selfloop flow, removed 7 redundant places. [2023-11-10 11:52:17,410 INFO L231 Difference]: Finished difference. Result has 924 places, 916 transitions, 2304 flow [2023-11-10 11:52:17,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=2219, PETRI_DIFFERENCE_MINUEND_PLACES=884, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=932, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=904, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2304, PETRI_PLACES=924, PETRI_TRANSITIONS=916} [2023-11-10 11:52:17,415 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 54 predicate places. [2023-11-10 11:52:17,415 INFO L495 AbstractCegarLoop]: Abstraction has has 924 places, 916 transitions, 2304 flow [2023-11-10 11:52:17,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 833.5) internal successors, (10002), 12 states have internal predecessors, (10002), 0 states have call successors, (0), 0 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 11:52:17,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:17,417 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] [2023-11-10 11:52:17,425 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 11:52:17,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:17,626 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:52:17,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:17,627 INFO L85 PathProgramCache]: Analyzing trace with hash -332714558, now seen corresponding path program 2 times [2023-11-10 11:52:17,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:17,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639016725] [2023-11-10 11:52:17,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:17,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:18,142 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 11:52:18,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:18,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639016725] [2023-11-10 11:52:18,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639016725] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:18,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201988338] [2023-11-10 11:52:18,143 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-10 11:52:18,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:18,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:18,145 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 11:52:18,147 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 11:52:18,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-10 11:52:18,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:52:18,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-10 11:52:18,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:19,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:52:19,275 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 11:52:19,290 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 11:52:19,329 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 11:52:19,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:19,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201988338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:19,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:19,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2023-11-10 11:52:19,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764853526] [2023-11-10 11:52:19,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:19,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:52:19,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:19,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:52:19,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-10 11:52:19,340 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 830 out of 921 [2023-11-10 11:52:19,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 924 places, 916 transitions, 2304 flow. Second operand has 12 states, 12 states have (on average 833.5) internal successors, (10002), 12 states have internal predecessors, (10002), 0 states have call successors, (0), 0 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 11:52:19,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:19,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 830 of 921 [2023-11-10 11:52:19,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:21,835 INFO L124 PetriNetUnfolderBase]: 1592/11661 cut-off events. [2023-11-10 11:52:21,835 INFO L125 PetriNetUnfolderBase]: For 8193/8590 co-relation queries the response was YES. [2023-11-10 11:52:21,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18260 conditions, 11661 events. 1592/11661 cut-off events. For 8193/8590 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 109354 event pairs, 293 based on Foata normal form. 10/11059 useless extension candidates. Maximal degree in co-relation 18077. Up to 795 conditions per place. [2023-11-10 11:52:21,910 INFO L140 encePairwiseOnDemand]: 903/921 looper letters, 183 selfloop transitions, 57 changer transitions 42/1090 dead transitions. [2023-11-10 11:52:21,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 931 places, 1090 transitions, 4278 flow [2023-11-10 11:52:21,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-10 11:52:21,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-10 11:52:21,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 19288 transitions. [2023-11-10 11:52:21,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9105414719350422 [2023-11-10 11:52:21,934 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 19288 transitions. [2023-11-10 11:52:21,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 19288 transitions. [2023-11-10 11:52:21,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:21,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 19288 transitions. [2023-11-10 11:52:21,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 838.6086956521739) internal successors, (19288), 23 states have internal predecessors, (19288), 0 states have call successors, (0), 0 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 11:52:21,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 921.0) internal successors, (22104), 24 states have internal predecessors, (22104), 0 states have call successors, (0), 0 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 11:52:21,992 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 921.0) internal successors, (22104), 24 states have internal predecessors, (22104), 0 states have call successors, (0), 0 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 11:52:21,992 INFO L175 Difference]: Start difference. First operand has 924 places, 916 transitions, 2304 flow. Second operand 23 states and 19288 transitions. [2023-11-10 11:52:21,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 931 places, 1090 transitions, 4278 flow [2023-11-10 11:52:22,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 915 places, 1090 transitions, 3999 flow, removed 50 selfloop flow, removed 16 redundant places. [2023-11-10 11:52:22,042 INFO L231 Difference]: Finished difference. Result has 933 places, 959 transitions, 3011 flow [2023-11-10 11:52:22,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=2239, PETRI_DIFFERENCE_MINUEND_PLACES=893, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=916, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=882, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3011, PETRI_PLACES=933, PETRI_TRANSITIONS=959} [2023-11-10 11:52:22,045 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 63 predicate places. [2023-11-10 11:52:22,045 INFO L495 AbstractCegarLoop]: Abstraction has has 933 places, 959 transitions, 3011 flow [2023-11-10 11:52:22,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 833.5) internal successors, (10002), 12 states have internal predecessors, (10002), 0 states have call successors, (0), 0 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 11:52:22,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:22,048 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] [2023-11-10 11:52:22,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-10 11:52:22,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:22,258 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:52:22,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:22,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1495281924, now seen corresponding path program 3 times [2023-11-10 11:52:22,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:22,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168834681] [2023-11-10 11:52:22,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:22,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:22,776 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 11:52:22,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:22,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168834681] [2023-11-10 11:52:22,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168834681] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:22,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533155276] [2023-11-10 11:52:22,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-10 11:52:22,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:22,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:22,781 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 11:52:22,807 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 11:52:23,210 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-10 11:52:23,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:52:23,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-10 11:52:23,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:24,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:52:24,143 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 11:52:24,163 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 11:52:24,207 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 11:52:24,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:24,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533155276] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:24,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:24,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2023-11-10 11:52:24,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583580987] [2023-11-10 11:52:24,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:24,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:52:24,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:24,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:52:24,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-11-10 11:52:24,217 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 830 out of 921 [2023-11-10 11:52:24,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 933 places, 959 transitions, 3011 flow. Second operand has 12 states, 12 states have (on average 833.5) internal successors, (10002), 12 states have internal predecessors, (10002), 0 states have call successors, (0), 0 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 11:52:24,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:24,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 830 of 921 [2023-11-10 11:52:24,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:27,447 INFO L124 PetriNetUnfolderBase]: 1973/14915 cut-off events. [2023-11-10 11:52:27,447 INFO L125 PetriNetUnfolderBase]: For 15721/16221 co-relation queries the response was YES. [2023-11-10 11:52:27,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24340 conditions, 14915 events. 1973/14915 cut-off events. For 15721/16221 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 151373 event pairs, 391 based on Foata normal form. 63/14227 useless extension candidates. Maximal degree in co-relation 24071. Up to 1098 conditions per place. [2023-11-10 11:52:27,521 INFO L140 encePairwiseOnDemand]: 901/921 looper letters, 165 selfloop transitions, 101 changer transitions 42/1116 dead transitions. [2023-11-10 11:52:27,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 1116 transitions, 5118 flow [2023-11-10 11:52:27,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-10 11:52:27,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-10 11:52:27,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 20136 transitions. [2023-11-10 11:52:27,536 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9109663409337676 [2023-11-10 11:52:27,536 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 20136 transitions. [2023-11-10 11:52:27,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 20136 transitions. [2023-11-10 11:52:27,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:27,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 20136 transitions. [2023-11-10 11:52:27,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 839.0) internal successors, (20136), 24 states have internal predecessors, (20136), 0 states have call successors, (0), 0 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 11:52:27,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 921.0) internal successors, (23025), 25 states have internal predecessors, (23025), 0 states have call successors, (0), 0 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 11:52:27,577 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 921.0) internal successors, (23025), 25 states have internal predecessors, (23025), 0 states have call successors, (0), 0 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 11:52:27,577 INFO L175 Difference]: Start difference. First operand has 933 places, 959 transitions, 3011 flow. Second operand 24 states and 20136 transitions. [2023-11-10 11:52:27,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 953 places, 1116 transitions, 5118 flow [2023-11-10 11:52:27,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 947 places, 1116 transitions, 4759 flow, removed 167 selfloop flow, removed 6 redundant places. [2023-11-10 11:52:27,658 INFO L231 Difference]: Finished difference. Result has 956 places, 1011 transitions, 3887 flow [2023-11-10 11:52:27,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=2814, PETRI_DIFFERENCE_MINUEND_PLACES=924, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=959, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=903, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=3887, PETRI_PLACES=956, PETRI_TRANSITIONS=1011} [2023-11-10 11:52:27,661 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 86 predicate places. [2023-11-10 11:52:27,661 INFO L495 AbstractCegarLoop]: Abstraction has has 956 places, 1011 transitions, 3887 flow [2023-11-10 11:52:27,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 833.5) internal successors, (10002), 12 states have internal predecessors, (10002), 0 states have call successors, (0), 0 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 11:52:27,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:27,663 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] [2023-11-10 11:52:27,672 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 11:52:27,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:27,870 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:52:27,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:27,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1554807164, now seen corresponding path program 4 times [2023-11-10 11:52:27,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:27,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356372773] [2023-11-10 11:52:27,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:27,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:28,352 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 11:52:28,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:28,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356372773] [2023-11-10 11:52:28,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356372773] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:28,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594551782] [2023-11-10 11:52:28,352 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-10 11:52:28,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:28,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:28,354 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 11:52:28,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-10 11:52:28,813 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-10 11:52:28,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:52:28,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-10 11:52:28,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:29,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:52:29,689 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 11:52:29,707 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 11:52:29,748 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 11:52:29,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:29,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594551782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:29,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:29,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2023-11-10 11:52:29,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500231291] [2023-11-10 11:52:29,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:29,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-10 11:52:29,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:29,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-10 11:52:29,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2023-11-10 11:52:29,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 823 out of 921 [2023-11-10 11:52:29,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 956 places, 1011 transitions, 3887 flow. Second operand has 14 states, 14 states have (on average 826.4285714285714) internal successors, (11570), 14 states have internal predecessors, (11570), 0 states have call successors, (0), 0 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 11:52:29,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:29,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 823 of 921 [2023-11-10 11:52:29,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:33,643 INFO L124 PetriNetUnfolderBase]: 2087/15740 cut-off events. [2023-11-10 11:52:33,643 INFO L125 PetriNetUnfolderBase]: For 25828/26529 co-relation queries the response was YES. [2023-11-10 11:52:33,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27041 conditions, 15740 events. 2087/15740 cut-off events. For 25828/26529 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 162869 event pairs, 437 based on Foata normal form. 18/14917 useless extension candidates. Maximal degree in co-relation 26785. Up to 1052 conditions per place. [2023-11-10 11:52:33,809 INFO L140 encePairwiseOnDemand]: 898/921 looper letters, 220 selfloop transitions, 58 changer transitions 90/1170 dead transitions. [2023-11-10 11:52:33,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 978 places, 1170 transitions, 6363 flow [2023-11-10 11:52:33,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-10 11:52:33,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-10 11:52:33,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 21604 transitions. [2023-11-10 11:52:33,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9021966090369999 [2023-11-10 11:52:33,825 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 21604 transitions. [2023-11-10 11:52:33,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 21604 transitions. [2023-11-10 11:52:33,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:33,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 21604 transitions. [2023-11-10 11:52:33,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 830.9230769230769) internal successors, (21604), 26 states have internal predecessors, (21604), 0 states have call successors, (0), 0 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 11:52:33,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 921.0) internal successors, (24867), 27 states have internal predecessors, (24867), 0 states have call successors, (0), 0 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 11:52:33,873 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 921.0) internal successors, (24867), 27 states have internal predecessors, (24867), 0 states have call successors, (0), 0 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 11:52:33,873 INFO L175 Difference]: Start difference. First operand has 956 places, 1011 transitions, 3887 flow. Second operand 26 states and 21604 transitions. [2023-11-10 11:52:33,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 978 places, 1170 transitions, 6363 flow [2023-11-10 11:52:33,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 972 places, 1170 transitions, 5729 flow, removed 309 selfloop flow, removed 6 redundant places. [2023-11-10 11:52:33,994 INFO L231 Difference]: Finished difference. Result has 992 places, 1040 transitions, 4149 flow [2023-11-10 11:52:33,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=3421, PETRI_DIFFERENCE_MINUEND_PLACES=947, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1011, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4149, PETRI_PLACES=992, PETRI_TRANSITIONS=1040} [2023-11-10 11:52:33,996 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 122 predicate places. [2023-11-10 11:52:33,996 INFO L495 AbstractCegarLoop]: Abstraction has has 992 places, 1040 transitions, 4149 flow [2023-11-10 11:52:33,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 826.4285714285714) internal successors, (11570), 14 states have internal predecessors, (11570), 0 states have call successors, (0), 0 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 11:52:33,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:33,998 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] [2023-11-10 11:52:34,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-10 11:52:34,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:34,208 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:52:34,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:34,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1277172470, now seen corresponding path program 5 times [2023-11-10 11:52:34,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:34,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97705063] [2023-11-10 11:52:34,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:34,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:34,672 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 11:52:34,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:34,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97705063] [2023-11-10 11:52:34,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97705063] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:34,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369191753] [2023-11-10 11:52:34,673 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-10 11:52:34,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:34,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:34,674 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:52:34,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-10 11:52:35,122 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-10 11:52:35,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:52:35,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-10 11:52:35,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:35,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:52:35,885 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 11:52:35,899 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 11:52:35,939 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 11:52:35,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:35,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369191753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:35,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:35,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2023-11-10 11:52:35,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963179568] [2023-11-10 11:52:35,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:35,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:52:35,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:35,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:52:35,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-10 11:52:35,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 830 out of 921 [2023-11-10 11:52:35,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 992 places, 1040 transitions, 4149 flow. Second operand has 12 states, 12 states have (on average 833.5) internal successors, (10002), 12 states have internal predecessors, (10002), 0 states have call successors, (0), 0 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 11:52:35,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:35,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 830 of 921 [2023-11-10 11:52:35,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:39,764 INFO L124 PetriNetUnfolderBase]: 2178/17648 cut-off events. [2023-11-10 11:52:39,764 INFO L125 PetriNetUnfolderBase]: For 28497/29282 co-relation queries the response was YES. [2023-11-10 11:52:39,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29292 conditions, 17648 events. 2178/17648 cut-off events. For 28497/29282 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 190159 event pairs, 475 based on Foata normal form. 42/16795 useless extension candidates. Maximal degree in co-relation 28995. Up to 1406 conditions per place. [2023-11-10 11:52:39,929 INFO L140 encePairwiseOnDemand]: 901/921 looper letters, 184 selfloop transitions, 106 changer transitions 89/1187 dead transitions. [2023-11-10 11:52:39,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1002 places, 1187 transitions, 6548 flow [2023-11-10 11:52:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-10 11:52:39,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-10 11:52:39,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 17615 transitions. [2023-11-10 11:52:39,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9107595263947056 [2023-11-10 11:52:39,943 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 17615 transitions. [2023-11-10 11:52:39,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 17615 transitions. [2023-11-10 11:52:39,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:39,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 17615 transitions. [2023-11-10 11:52:39,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 838.8095238095239) internal successors, (17615), 21 states have internal predecessors, (17615), 0 states have call successors, (0), 0 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 11:52:39,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 921.0) internal successors, (20262), 22 states have internal predecessors, (20262), 0 states have call successors, (0), 0 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 11:52:39,976 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 921.0) internal successors, (20262), 22 states have internal predecessors, (20262), 0 states have call successors, (0), 0 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 11:52:39,977 INFO L175 Difference]: Start difference. First operand has 992 places, 1040 transitions, 4149 flow. Second operand 21 states and 17615 transitions. [2023-11-10 11:52:39,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1002 places, 1187 transitions, 6548 flow [2023-11-10 11:52:40,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 989 places, 1187 transitions, 6125 flow, removed 207 selfloop flow, removed 13 redundant places. [2023-11-10 11:52:40,121 INFO L231 Difference]: Finished difference. Result has 996 places, 1048 transitions, 4562 flow [2023-11-10 11:52:40,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=3924, PETRI_DIFFERENCE_MINUEND_PLACES=969, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1040, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=954, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4562, PETRI_PLACES=996, PETRI_TRANSITIONS=1048} [2023-11-10 11:52:40,124 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 126 predicate places. [2023-11-10 11:52:40,124 INFO L495 AbstractCegarLoop]: Abstraction has has 996 places, 1048 transitions, 4562 flow [2023-11-10 11:52:40,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 833.5) internal successors, (10002), 12 states have internal predecessors, (10002), 0 states have call successors, (0), 0 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 11:52:40,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:40,125 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] [2023-11-10 11:52:40,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-10 11:52:40,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-10 11:52:40,334 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:52:40,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:40,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1465326508, now seen corresponding path program 6 times [2023-11-10 11:52:40,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:40,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123115866] [2023-11-10 11:52:40,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:40,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:40,831 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 11:52:40,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:40,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123115866] [2023-11-10 11:52:40,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123115866] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:40,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288041440] [2023-11-10 11:52:40,831 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-10 11:52:40,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:40,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:40,833 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:52:40,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-10 11:52:41,374 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2023-11-10 11:52:41,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:52:41,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 92 conjunts are in the unsatisfiable core [2023-11-10 11:52:41,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:41,655 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:41,655 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 11:52:41,706 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:41,706 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 11:52:41,755 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:41,755 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 11:52:41,799 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:41,799 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 11:52:41,838 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:41,838 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 11:52:41,872 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:41,872 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 11:52:41,906 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:41,906 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 11:52:41,950 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:41,950 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 11:52:41,987 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:41,987 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 11:52:42,029 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:42,029 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 11:52:42,070 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:42,070 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:52:42,113 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:42,113 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 11:52:42,149 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:42,149 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 11:52:42,186 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:42,186 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 11:52:42,228 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:42,228 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 11:52:42,265 INFO L322 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-11-10 11:52:42,265 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2023-11-10 11:52:42,435 INFO L322 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2023-11-10 11:52:42,435 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 84 [2023-11-10 11:52:42,602 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:42,602 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 11:52:42,656 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:42,656 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 11:52:42,703 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:42,703 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 11:52:42,758 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:42,758 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 11:52:42,951 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:42,952 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 11:52:43,094 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:43,094 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 11:52:43,619 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 11:52:43,711 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:43,711 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 11:52:43,733 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:52:43,733 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 11:52:43,877 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 11:52:44,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:52:44,014 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 11:52:44,033 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 11:52:44,080 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 11:52:44,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:44,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288041440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:44,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:44,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2023-11-10 11:52:44,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900179036] [2023-11-10 11:52:44,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:44,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-10 11:52:44,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:44,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-10 11:52:44,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2023-11-10 11:52:44,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 768 out of 921 [2023-11-10 11:52:44,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 996 places, 1048 transitions, 4562 flow. Second operand has 20 states, 20 states have (on average 772.65) internal successors, (15453), 20 states have internal predecessors, (15453), 0 states have call successors, (0), 0 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 11:52:44,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:44,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 768 of 921 [2023-11-10 11:52:44,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:47,780 INFO L124 PetriNetUnfolderBase]: 1728/12327 cut-off events. [2023-11-10 11:52:47,780 INFO L125 PetriNetUnfolderBase]: For 29493/30342 co-relation queries the response was YES. [2023-11-10 11:52:47,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23770 conditions, 12327 events. 1728/12327 cut-off events. For 29493/30342 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 117388 event pairs, 453 based on Foata normal form. 56/11724 useless extension candidates. Maximal degree in co-relation 23459. Up to 1226 conditions per place. [2023-11-10 11:52:47,914 INFO L140 encePairwiseOnDemand]: 892/921 looper letters, 265 selfloop transitions, 120 changer transitions 26/1164 dead transitions. [2023-11-10 11:52:47,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1018 places, 1164 transitions, 6617 flow [2023-11-10 11:52:47,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-10 11:52:47,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-11-10 11:52:47,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 22518 transitions. [2023-11-10 11:52:47,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8430866000224644 [2023-11-10 11:52:47,931 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 22518 transitions. [2023-11-10 11:52:47,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 22518 transitions. [2023-11-10 11:52:47,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:47,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 22518 transitions. [2023-11-10 11:52:47,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 776.4827586206897) internal successors, (22518), 29 states have internal predecessors, (22518), 0 states have call successors, (0), 0 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 11:52:47,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 921.0) internal successors, (27630), 30 states have internal predecessors, (27630), 0 states have call successors, (0), 0 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 11:52:47,976 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 921.0) internal successors, (27630), 30 states have internal predecessors, (27630), 0 states have call successors, (0), 0 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 11:52:47,976 INFO L175 Difference]: Start difference. First operand has 996 places, 1048 transitions, 4562 flow. Second operand 29 states and 22518 transitions. [2023-11-10 11:52:47,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1018 places, 1164 transitions, 6617 flow [2023-11-10 11:52:48,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1008 places, 1164 transitions, 6284 flow, removed 154 selfloop flow, removed 10 redundant places. [2023-11-10 11:52:48,144 INFO L231 Difference]: Finished difference. Result has 1016 places, 1082 transitions, 5365 flow [2023-11-10 11:52:48,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=4297, PETRI_DIFFERENCE_MINUEND_PLACES=980, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1048, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=5365, PETRI_PLACES=1016, PETRI_TRANSITIONS=1082} [2023-11-10 11:52:48,146 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 146 predicate places. [2023-11-10 11:52:48,146 INFO L495 AbstractCegarLoop]: Abstraction has has 1016 places, 1082 transitions, 5365 flow [2023-11-10 11:52:48,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 772.65) internal successors, (15453), 20 states have internal predecessors, (15453), 0 states have call successors, (0), 0 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 11:52:48,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:48,148 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] [2023-11-10 11:52:48,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-10 11:52:48,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:48,357 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:52:48,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:48,358 INFO L85 PathProgramCache]: Analyzing trace with hash 277916252, now seen corresponding path program 7 times [2023-11-10 11:52:48,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:48,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434730240] [2023-11-10 11:52:48,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:48,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:48,804 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 11:52:48,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:48,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434730240] [2023-11-10 11:52:48,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434730240] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:48,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69530338] [2023-11-10 11:52:48,804 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-10 11:52:48,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:48,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:48,809 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:52:48,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-10 11:52:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:49,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 88 conjunts are in the unsatisfiable core [2023-11-10 11:52:49,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:49,661 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:49,661 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 11:52:49,684 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:49,684 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 11:52:49,706 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:49,707 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 11:52:49,747 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:49,748 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:52:49,779 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:49,779 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 11:52:49,811 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:49,812 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 11:52:49,844 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:49,845 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 11:52:49,882 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:49,882 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 11:52:49,925 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:49,925 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:52:49,967 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:49,967 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 11:52:50,010 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:50,010 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 11:52:50,049 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:50,049 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 11:52:50,082 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:50,083 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 11:52:50,117 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:50,118 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 11:52:50,149 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:50,150 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 11:52:50,199 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:50,200 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 11:52:50,247 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:50,247 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 11:52:50,294 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:50,295 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 11:52:50,332 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:50,333 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 11:52:50,370 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:50,370 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 11:52:50,416 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:50,416 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 11:52:50,589 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:50,589 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 11:52:50,712 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:50,713 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 11:52:51,158 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 11:52:51,275 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:51,276 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 11:52:51,300 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:52:51,301 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 11:52:51,398 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 11:52:51,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:52:51,544 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 11:52:51,562 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 11:52:51,613 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 11:52:51,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:51,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69530338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:51,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:51,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2023-11-10 11:52:51,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664297759] [2023-11-10 11:52:51,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:51,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-10 11:52:51,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:51,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-10 11:52:51,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2023-11-10 11:52:51,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 768 out of 921 [2023-11-10 11:52:51,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1016 places, 1082 transitions, 5365 flow. Second operand has 19 states, 19 states have (on average 772.8947368421053) internal successors, (14685), 19 states have internal predecessors, (14685), 0 states have call successors, (0), 0 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 11:52:51,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:51,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 768 of 921 [2023-11-10 11:52:51,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:57,207 INFO L124 PetriNetUnfolderBase]: 2293/19080 cut-off events. [2023-11-10 11:52:57,207 INFO L125 PetriNetUnfolderBase]: For 40030/41540 co-relation queries the response was YES. [2023-11-10 11:52:57,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33537 conditions, 19080 events. 2293/19080 cut-off events. For 40030/41540 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 210980 event pairs, 539 based on Foata normal form. 82/18165 useless extension candidates. Maximal degree in co-relation 33224. Up to 1256 conditions per place. [2023-11-10 11:52:57,440 INFO L140 encePairwiseOnDemand]: 893/921 looper letters, 258 selfloop transitions, 151 changer transitions 55/1217 dead transitions. [2023-11-10 11:52:57,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1035 places, 1217 transitions, 8128 flow [2023-11-10 11:52:57,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-10 11:52:57,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-10 11:52:57,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 20202 transitions. [2023-11-10 11:52:57,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8436482084690554 [2023-11-10 11:52:57,460 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 20202 transitions. [2023-11-10 11:52:57,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 20202 transitions. [2023-11-10 11:52:57,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:57,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 20202 transitions. [2023-11-10 11:52:57,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 777.0) internal successors, (20202), 26 states have internal predecessors, (20202), 0 states have call successors, (0), 0 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 11:52:57,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 921.0) internal successors, (24867), 27 states have internal predecessors, (24867), 0 states have call successors, (0), 0 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 11:52:57,502 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 921.0) internal successors, (24867), 27 states have internal predecessors, (24867), 0 states have call successors, (0), 0 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 11:52:57,502 INFO L175 Difference]: Start difference. First operand has 1016 places, 1082 transitions, 5365 flow. Second operand 26 states and 20202 transitions. [2023-11-10 11:52:57,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1035 places, 1217 transitions, 8128 flow [2023-11-10 11:52:57,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1023 places, 1217 transitions, 7241 flow, removed 418 selfloop flow, removed 12 redundant places. [2023-11-10 11:52:57,732 INFO L231 Difference]: Finished difference. Result has 1037 places, 1114 transitions, 5926 flow [2023-11-10 11:52:57,734 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=4846, PETRI_DIFFERENCE_MINUEND_PLACES=998, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1082, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=945, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=5926, PETRI_PLACES=1037, PETRI_TRANSITIONS=1114} [2023-11-10 11:52:57,734 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 167 predicate places. [2023-11-10 11:52:57,735 INFO L495 AbstractCegarLoop]: Abstraction has has 1037 places, 1114 transitions, 5926 flow [2023-11-10 11:52:57,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 772.8947368421053) internal successors, (14685), 19 states have internal predecessors, (14685), 0 states have call successors, (0), 0 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 11:52:57,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:57,737 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] [2023-11-10 11:52:57,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-10 11:52:57,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-10 11:52:57,948 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:52:57,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:57,949 INFO L85 PathProgramCache]: Analyzing trace with hash -108535564, now seen corresponding path program 8 times [2023-11-10 11:52:57,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:57,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705350294] [2023-11-10 11:52:57,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:57,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:58,380 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 11:52:58,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:58,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705350294] [2023-11-10 11:52:58,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705350294] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:58,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13369753] [2023-11-10 11:52:58,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-10 11:52:58,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:58,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:58,382 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:52:58,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-10 11:52:59,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-10 11:52:59,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:52:59,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 96 conjunts are in the unsatisfiable core [2023-11-10 11:52:59,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:59,318 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:59,318 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 11:52:59,341 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:59,342 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 11:52:59,370 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:59,370 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 11:52:59,413 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:59,413 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 11:52:59,448 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:59,448 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 11:52:59,479 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:59,479 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 11:52:59,510 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:59,511 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 11:52:59,549 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:59,549 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 11:52:59,589 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:59,589 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 11:52:59,628 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:59,629 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 11:52:59,680 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:59,680 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 28 [2023-11-10 11:52:59,715 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:59,716 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 11:52:59,748 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:59,748 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:52:59,785 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:59,786 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 11:52:59,817 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:59,817 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 11:52:59,864 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:52:59,864 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 11:52:59,898 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:59,899 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 11:52:59,928 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:59,928 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 11:52:59,973 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:52:59,973 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 11:53:00,012 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:53:00,012 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 28 [2023-11-10 11:53:00,057 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:53:00,058 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 28 [2023-11-10 11:53:00,245 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:00,245 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 20 [2023-11-10 11:53:00,389 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:53:00,390 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 28 [2023-11-10 11:53:00,823 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:00,903 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:53:00,904 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 28 [2023-11-10 11:53:00,924 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:53:00,924 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-11-10 11:53:01,030 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:01,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:53:01,195 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:01,215 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:01,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-10 11:53:01,257 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:01,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13369753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:01,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:01,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2023-11-10 11:53:01,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691465731] [2023-11-10 11:53:01,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:01,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-10 11:53:01,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:01,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-10 11:53:01,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2023-11-10 11:53:01,265 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 768 out of 921 [2023-11-10 11:53:01,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1037 places, 1114 transitions, 5926 flow. Second operand has 19 states, 19 states have (on average 772.8947368421053) internal successors, (14685), 19 states have internal predecessors, (14685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:01,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:01,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 768 of 921 [2023-11-10 11:53:01,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:05,816 INFO L124 PetriNetUnfolderBase]: 1943/14214 cut-off events. [2023-11-10 11:53:05,817 INFO L125 PetriNetUnfolderBase]: For 40771/42052 co-relation queries the response was YES. [2023-11-10 11:53:05,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28117 conditions, 14214 events. 1943/14214 cut-off events. For 40771/42052 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 142206 event pairs, 375 based on Foata normal form. 75/13524 useless extension candidates. Maximal degree in co-relation 27832. Up to 971 conditions per place. [2023-11-10 11:53:05,955 INFO L140 encePairwiseOnDemand]: 893/921 looper letters, 258 selfloop transitions, 176 changer transitions 41/1228 dead transitions. [2023-11-10 11:53:05,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1059 places, 1228 transitions, 8306 flow [2023-11-10 11:53:05,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-10 11:53:05,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-11-10 11:53:05,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 22525 transitions. [2023-11-10 11:53:05,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8433486839642068 [2023-11-10 11:53:05,971 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 22525 transitions. [2023-11-10 11:53:05,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 22525 transitions. [2023-11-10 11:53:05,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:05,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 22525 transitions. [2023-11-10 11:53:05,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 776.7241379310345) internal successors, (22525), 29 states have internal predecessors, (22525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:06,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 921.0) internal successors, (27630), 30 states have internal predecessors, (27630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:06,018 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 921.0) internal successors, (27630), 30 states have internal predecessors, (27630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:06,018 INFO L175 Difference]: Start difference. First operand has 1037 places, 1114 transitions, 5926 flow. Second operand 29 states and 22525 transitions. [2023-11-10 11:53:06,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1059 places, 1228 transitions, 8306 flow [2023-11-10 11:53:06,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1042 places, 1228 transitions, 7915 flow, removed 176 selfloop flow, removed 17 redundant places. [2023-11-10 11:53:06,299 INFO L231 Difference]: Finished difference. Result has 1060 places, 1133 transitions, 6815 flow [2023-11-10 11:53:06,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=5719, PETRI_DIFFERENCE_MINUEND_PLACES=1014, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=941, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=6815, PETRI_PLACES=1060, PETRI_TRANSITIONS=1133} [2023-11-10 11:53:06,302 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 190 predicate places. [2023-11-10 11:53:06,302 INFO L495 AbstractCegarLoop]: Abstraction has has 1060 places, 1133 transitions, 6815 flow [2023-11-10 11:53:06,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 772.8947368421053) internal successors, (14685), 19 states have internal predecessors, (14685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:06,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:06,305 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] [2023-11-10 11:53:06,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:06,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-10 11:53:06,514 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:53:06,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:06,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1665797567, now seen corresponding path program 1 times [2023-11-10 11:53:06,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:06,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646961995] [2023-11-10 11:53:06,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:06,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:06,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:06,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:06,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646961995] [2023-11-10 11:53:06,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646961995] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:06,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711960098] [2023-11-10 11:53:06,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:06,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:06,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:06,968 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:53:06,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-10 11:53:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:07,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-10 11:53:07,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:08,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:53:08,035 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:08,067 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:08,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-10 11:53:08,105 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:08,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711960098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:08,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:08,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2023-11-10 11:53:08,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083987084] [2023-11-10 11:53:08,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:08,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:53:08,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:08,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:53:08,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2023-11-10 11:53:08,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 830 out of 921 [2023-11-10 11:53:08,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1060 places, 1133 transitions, 6815 flow. Second operand has 12 states, 12 states have (on average 833.5833333333334) internal successors, (10003), 12 states have internal predecessors, (10003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:08,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:08,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 830 of 921 [2023-11-10 11:53:08,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:12,216 INFO L124 PetriNetUnfolderBase]: 1806/14032 cut-off events. [2023-11-10 11:53:12,216 INFO L125 PetriNetUnfolderBase]: For 42029/43410 co-relation queries the response was YES. [2023-11-10 11:53:12,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27417 conditions, 14032 events. 1806/14032 cut-off events. For 42029/43410 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 140965 event pairs, 206 based on Foata normal form. 112/13404 useless extension candidates. Maximal degree in co-relation 27092. Up to 659 conditions per place. [2023-11-10 11:53:12,352 INFO L140 encePairwiseOnDemand]: 902/921 looper letters, 180 selfloop transitions, 198 changer transitions 61/1247 dead transitions. [2023-11-10 11:53:12,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1083 places, 1247 transitions, 8915 flow [2023-11-10 11:53:12,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-10 11:53:12,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-11-10 11:53:12,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 22629 transitions. [2023-11-10 11:53:12,363 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9100012064181445 [2023-11-10 11:53:12,363 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 22629 transitions. [2023-11-10 11:53:12,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 22629 transitions. [2023-11-10 11:53:12,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:12,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 22629 transitions. [2023-11-10 11:53:12,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 838.1111111111111) internal successors, (22629), 27 states have internal predecessors, (22629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:12,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 921.0) internal successors, (25788), 28 states have internal predecessors, (25788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:12,407 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 921.0) internal successors, (25788), 28 states have internal predecessors, (25788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:12,408 INFO L175 Difference]: Start difference. First operand has 1060 places, 1133 transitions, 6815 flow. Second operand 27 states and 22629 transitions. [2023-11-10 11:53:12,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1083 places, 1247 transitions, 8915 flow [2023-11-10 11:53:12,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1056 places, 1247 transitions, 8468 flow, removed 130 selfloop flow, removed 27 redundant places. [2023-11-10 11:53:12,659 INFO L231 Difference]: Finished difference. Result has 1059 places, 1137 transitions, 7212 flow [2023-11-10 11:53:12,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=6494, PETRI_DIFFERENCE_MINUEND_PLACES=1030, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=179, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=954, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=7212, PETRI_PLACES=1059, PETRI_TRANSITIONS=1137} [2023-11-10 11:53:12,661 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 189 predicate places. [2023-11-10 11:53:12,661 INFO L495 AbstractCegarLoop]: Abstraction has has 1059 places, 1137 transitions, 7212 flow [2023-11-10 11:53:12,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 833.5833333333334) internal successors, (10003), 12 states have internal predecessors, (10003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:12,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:12,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:12,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:12,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-10 11:53:12,871 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:53:12,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:12,872 INFO L85 PathProgramCache]: Analyzing trace with hash 588392154, now seen corresponding path program 1 times [2023-11-10 11:53:12,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:12,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814425173] [2023-11-10 11:53:12,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:12,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:13,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:13,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:13,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814425173] [2023-11-10 11:53:13,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814425173] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:13,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102703465] [2023-11-10 11:53:13,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:13,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:13,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:13,489 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:53:13,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-10 11:53:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:14,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-10 11:53:14,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:14,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:53:14,955 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:14,968 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:15,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-10 11:53:15,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:15,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102703465] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:15,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:15,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2023-11-10 11:53:15,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727735345] [2023-11-10 11:53:15,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:15,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:53:15,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:15,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:53:15,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-11-10 11:53:15,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 830 out of 921 [2023-11-10 11:53:15,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1059 places, 1137 transitions, 7212 flow. Second operand has 12 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:15,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:15,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 830 of 921 [2023-11-10 11:53:15,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:18,998 INFO L124 PetriNetUnfolderBase]: 2218/14227 cut-off events. [2023-11-10 11:53:18,998 INFO L125 PetriNetUnfolderBase]: For 56382/56796 co-relation queries the response was YES. [2023-11-10 11:53:19,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30096 conditions, 14227 events. 2218/14227 cut-off events. For 56382/56796 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 138437 event pairs, 316 based on Foata normal form. 7/13459 useless extension candidates. Maximal degree in co-relation 29924. Up to 1671 conditions per place. [2023-11-10 11:53:19,145 INFO L140 encePairwiseOnDemand]: 903/921 looper letters, 276 selfloop transitions, 10 changer transitions 122/1292 dead transitions. [2023-11-10 11:53:19,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1075 places, 1292 transitions, 10406 flow [2023-11-10 11:53:19,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-10 11:53:19,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-10 11:53:19,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 16769 transitions. [2023-11-10 11:53:19,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9103691639522259 [2023-11-10 11:53:19,157 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 16769 transitions. [2023-11-10 11:53:19,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 16769 transitions. [2023-11-10 11:53:19,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:19,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 16769 transitions. [2023-11-10 11:53:19,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 838.45) internal successors, (16769), 20 states have internal predecessors, (16769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:19,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 921.0) internal successors, (19341), 21 states have internal predecessors, (19341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:19,192 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 921.0) internal successors, (19341), 21 states have internal predecessors, (19341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:19,192 INFO L175 Difference]: Start difference. First operand has 1059 places, 1137 transitions, 7212 flow. Second operand 20 states and 16769 transitions. [2023-11-10 11:53:19,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1075 places, 1292 transitions, 10406 flow [2023-11-10 11:53:19,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1047 places, 1292 transitions, 9403 flow, removed 328 selfloop flow, removed 28 redundant places. [2023-11-10 11:53:19,423 INFO L231 Difference]: Finished difference. Result has 1063 places, 1142 transitions, 6751 flow [2023-11-10 11:53:19,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=6497, PETRI_DIFFERENCE_MINUEND_PLACES=1028, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6751, PETRI_PLACES=1063, PETRI_TRANSITIONS=1142} [2023-11-10 11:53:19,425 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 193 predicate places. [2023-11-10 11:53:19,425 INFO L495 AbstractCegarLoop]: Abstraction has has 1063 places, 1142 transitions, 6751 flow [2023-11-10 11:53:19,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:19,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:19,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:19,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:19,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-10 11:53:19,628 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:53:19,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:19,628 INFO L85 PathProgramCache]: Analyzing trace with hash 289548606, now seen corresponding path program 2 times [2023-11-10 11:53:19,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:19,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956480032] [2023-11-10 11:53:19,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:19,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:20,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:20,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956480032] [2023-11-10 11:53:20,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956480032] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:20,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367544107] [2023-11-10 11:53:20,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-10 11:53:20,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:20,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:20,248 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:53:20,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-10 11:53:20,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-10 11:53:20,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:53:20,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-10 11:53:20,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:22,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:53:22,033 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:22,051 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:22,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-10 11:53:22,089 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:22,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367544107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:22,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:22,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2023-11-10 11:53:22,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767453684] [2023-11-10 11:53:22,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:22,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:53:22,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:22,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:53:22,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-11-10 11:53:22,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 830 out of 921 [2023-11-10 11:53:22,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1063 places, 1142 transitions, 6751 flow. Second operand has 12 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:22,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:22,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 830 of 921 [2023-11-10 11:53:22,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:25,947 INFO L124 PetriNetUnfolderBase]: 2212/14364 cut-off events. [2023-11-10 11:53:25,948 INFO L125 PetriNetUnfolderBase]: For 47434/48404 co-relation queries the response was YES. [2023-11-10 11:53:26,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30564 conditions, 14364 events. 2212/14364 cut-off events. For 47434/48404 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 141286 event pairs, 789 based on Foata normal form. 55/13661 useless extension candidates. Maximal degree in co-relation 30356. Up to 2074 conditions per place. [2023-11-10 11:53:26,098 INFO L140 encePairwiseOnDemand]: 901/921 looper letters, 218 selfloop transitions, 54 changer transitions 102/1254 dead transitions. [2023-11-10 11:53:26,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1070 places, 1254 transitions, 8805 flow [2023-11-10 11:53:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-10 11:53:26,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-10 11:53:26,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 16783 transitions. [2023-11-10 11:53:26,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9111292073832791 [2023-11-10 11:53:26,112 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 16783 transitions. [2023-11-10 11:53:26,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 16783 transitions. [2023-11-10 11:53:26,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:26,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 16783 transitions. [2023-11-10 11:53:26,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 839.15) internal successors, (16783), 20 states have internal predecessors, (16783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:26,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 921.0) internal successors, (19341), 21 states have internal predecessors, (19341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:26,146 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 921.0) internal successors, (19341), 21 states have internal predecessors, (19341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:26,147 INFO L175 Difference]: Start difference. First operand has 1063 places, 1142 transitions, 6751 flow. Second operand 20 states and 16783 transitions. [2023-11-10 11:53:26,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1070 places, 1254 transitions, 8805 flow [2023-11-10 11:53:26,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1059 places, 1254 transitions, 8625 flow, removed 47 selfloop flow, removed 11 redundant places. [2023-11-10 11:53:26,346 INFO L231 Difference]: Finished difference. Result has 1074 places, 1130 transitions, 6597 flow [2023-11-10 11:53:26,347 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=6636, PETRI_DIFFERENCE_MINUEND_PLACES=1040, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1088, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6597, PETRI_PLACES=1074, PETRI_TRANSITIONS=1130} [2023-11-10 11:53:26,348 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 204 predicate places. [2023-11-10 11:53:26,348 INFO L495 AbstractCegarLoop]: Abstraction has has 1074 places, 1130 transitions, 6597 flow [2023-11-10 11:53:26,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:26,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:26,349 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:26,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-10 11:53:26,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:26,550 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:53:26,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:26,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1062389772, now seen corresponding path program 3 times [2023-11-10 11:53:26,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:26,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788946057] [2023-11-10 11:53:26,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:26,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:27,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:27,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:27,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788946057] [2023-11-10 11:53:27,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788946057] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:27,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228123344] [2023-11-10 11:53:27,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-10 11:53:27,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:27,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:27,133 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:53:27,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-10 11:53:27,650 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-10 11:53:27,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:53:27,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-10 11:53:27,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:28,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:53:28,761 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:28,775 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:28,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-10 11:53:28,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:28,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228123344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:28,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:28,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2023-11-10 11:53:28,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103295023] [2023-11-10 11:53:28,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:28,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:53:28,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:28,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:53:28,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-10 11:53:28,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 830 out of 921 [2023-11-10 11:53:28,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1074 places, 1130 transitions, 6597 flow. Second operand has 12 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:28,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:28,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 830 of 921 [2023-11-10 11:53:28,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:32,746 INFO L124 PetriNetUnfolderBase]: 2022/13660 cut-off events. [2023-11-10 11:53:32,746 INFO L125 PetriNetUnfolderBase]: For 53492/54722 co-relation queries the response was YES. [2023-11-10 11:53:32,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30829 conditions, 13660 events. 2022/13660 cut-off events. For 53492/54722 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 132693 event pairs, 802 based on Foata normal form. 63/13011 useless extension candidates. Maximal degree in co-relation 30625. Up to 2062 conditions per place. [2023-11-10 11:53:32,868 INFO L140 encePairwiseOnDemand]: 901/921 looper letters, 219 selfloop transitions, 55 changer transitions 60/1214 dead transitions. [2023-11-10 11:53:32,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1080 places, 1214 transitions, 8443 flow [2023-11-10 11:53:32,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-10 11:53:32,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-10 11:53:32,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 15100 transitions. [2023-11-10 11:53:32,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9108456991193148 [2023-11-10 11:53:32,876 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 15100 transitions. [2023-11-10 11:53:32,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 15100 transitions. [2023-11-10 11:53:32,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:32,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 15100 transitions. [2023-11-10 11:53:32,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 838.8888888888889) internal successors, (15100), 18 states have internal predecessors, (15100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:32,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 921.0) internal successors, (17499), 19 states have internal predecessors, (17499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:32,897 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 921.0) internal successors, (17499), 19 states have internal predecessors, (17499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:32,897 INFO L175 Difference]: Start difference. First operand has 1074 places, 1130 transitions, 6597 flow. Second operand 18 states and 15100 transitions. [2023-11-10 11:53:32,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1080 places, 1214 transitions, 8443 flow [2023-11-10 11:53:33,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1068 places, 1214 transitions, 7988 flow, removed 159 selfloop flow, removed 12 redundant places. [2023-11-10 11:53:33,149 INFO L231 Difference]: Finished difference. Result has 1082 places, 1131 transitions, 6590 flow [2023-11-10 11:53:33,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=6326, PETRI_DIFFERENCE_MINUEND_PLACES=1051, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1077, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6590, PETRI_PLACES=1082, PETRI_TRANSITIONS=1131} [2023-11-10 11:53:33,150 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 212 predicate places. [2023-11-10 11:53:33,151 INFO L495 AbstractCegarLoop]: Abstraction has has 1082 places, 1131 transitions, 6590 flow [2023-11-10 11:53:33,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:33,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:33,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:33,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:33,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-10 11:53:33,358 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:53:33,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:33,358 INFO L85 PathProgramCache]: Analyzing trace with hash -47810602, now seen corresponding path program 4 times [2023-11-10 11:53:33,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:33,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245990691] [2023-11-10 11:53:33,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:33,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:33,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:33,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:33,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245990691] [2023-11-10 11:53:33,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245990691] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:33,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075173193] [2023-11-10 11:53:33,786 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-10 11:53:33,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:33,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:33,788 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:53:33,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-10 11:53:34,493 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-10 11:53:34,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:53:34,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-10 11:53:34,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:35,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:53:35,159 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:35,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:53:35,724 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:35,739 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:35,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-10 11:53:35,776 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:35,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075173193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:35,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:35,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2023-11-10 11:53:35,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590606695] [2023-11-10 11:53:35,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:35,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-10 11:53:35,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:35,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-10 11:53:35,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2023-11-10 11:53:35,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 819 out of 921 [2023-11-10 11:53:35,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1082 places, 1131 transitions, 6590 flow. Second operand has 16 states, 16 states have (on average 822.375) internal successors, (13158), 16 states have internal predecessors, (13158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:35,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:35,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 819 of 921 [2023-11-10 11:53:35,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:40,404 INFO L124 PetriNetUnfolderBase]: 2273/14785 cut-off events. [2023-11-10 11:53:40,404 INFO L125 PetriNetUnfolderBase]: For 50453/51584 co-relation queries the response was YES. [2023-11-10 11:53:40,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32036 conditions, 14785 events. 2273/14785 cut-off events. For 50453/51584 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 146433 event pairs, 853 based on Foata normal form. 81/14113 useless extension candidates. Maximal degree in co-relation 31790. Up to 2273 conditions per place. [2023-11-10 11:53:40,539 INFO L140 encePairwiseOnDemand]: 893/921 looper letters, 281 selfloop transitions, 53 changer transitions 110/1242 dead transitions. [2023-11-10 11:53:40,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1101 places, 1242 transitions, 8629 flow [2023-11-10 11:53:40,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-10 11:53:40,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-10 11:53:40,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 21508 transitions. [2023-11-10 11:53:40,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8981875887413346 [2023-11-10 11:53:40,551 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 21508 transitions. [2023-11-10 11:53:40,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 21508 transitions. [2023-11-10 11:53:40,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:40,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 21508 transitions. [2023-11-10 11:53:40,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 827.2307692307693) internal successors, (21508), 26 states have internal predecessors, (21508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:40,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 921.0) internal successors, (24867), 27 states have internal predecessors, (24867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:40,578 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 921.0) internal successors, (24867), 27 states have internal predecessors, (24867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:40,578 INFO L175 Difference]: Start difference. First operand has 1082 places, 1131 transitions, 6590 flow. Second operand 26 states and 21508 transitions. [2023-11-10 11:53:40,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1101 places, 1242 transitions, 8629 flow [2023-11-10 11:53:40,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1080 places, 1242 transitions, 8298 flow, removed 101 selfloop flow, removed 21 redundant places. [2023-11-10 11:53:40,877 INFO L231 Difference]: Finished difference. Result has 1095 places, 1109 transitions, 6139 flow [2023-11-10 11:53:40,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=6403, PETRI_DIFFERENCE_MINUEND_PLACES=1055, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1078, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=6139, PETRI_PLACES=1095, PETRI_TRANSITIONS=1109} [2023-11-10 11:53:40,879 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 225 predicate places. [2023-11-10 11:53:40,879 INFO L495 AbstractCegarLoop]: Abstraction has has 1095 places, 1109 transitions, 6139 flow [2023-11-10 11:53:40,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 822.375) internal successors, (13158), 16 states have internal predecessors, (13158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:40,881 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:40,881 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:40,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:41,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-10 11:53:41,082 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:53:41,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:41,082 INFO L85 PathProgramCache]: Analyzing trace with hash 643525078, now seen corresponding path program 5 times [2023-11-10 11:53:41,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:41,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998964269] [2023-11-10 11:53:41,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:41,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:41,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:41,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:41,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998964269] [2023-11-10 11:53:41,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998964269] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:41,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428117606] [2023-11-10 11:53:41,537 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-10 11:53:41,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:41,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:41,541 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:53:41,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-10 11:53:42,048 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-10 11:53:42,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:53:42,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-10 11:53:42,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:42,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:53:42,990 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:43,005 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:43,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-10 11:53:43,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:43,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428117606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:43,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:43,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2023-11-10 11:53:43,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456136715] [2023-11-10 11:53:43,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:43,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:53:43,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:43,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:53:43,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-11-10 11:53:43,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 830 out of 921 [2023-11-10 11:53:43,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1095 places, 1109 transitions, 6139 flow. Second operand has 12 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:43,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:43,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 830 of 921 [2023-11-10 11:53:43,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:46,265 INFO L124 PetriNetUnfolderBase]: 1738/11054 cut-off events. [2023-11-10 11:53:46,265 INFO L125 PetriNetUnfolderBase]: For 54553/55743 co-relation queries the response was YES. [2023-11-10 11:53:46,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26735 conditions, 11054 events. 1738/11054 cut-off events. For 54553/55743 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 100269 event pairs, 751 based on Foata normal form. 58/10543 useless extension candidates. Maximal degree in co-relation 26522. Up to 1871 conditions per place. [2023-11-10 11:53:46,374 INFO L140 encePairwiseOnDemand]: 901/921 looper letters, 201 selfloop transitions, 46 changer transitions 74/1194 dead transitions. [2023-11-10 11:53:46,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1096 places, 1194 transitions, 7895 flow [2023-11-10 11:53:46,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-10 11:53:46,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-10 11:53:46,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 16765 transitions. [2023-11-10 11:53:46,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9101520086862106 [2023-11-10 11:53:46,382 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 16765 transitions. [2023-11-10 11:53:46,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 16765 transitions. [2023-11-10 11:53:46,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:46,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 16765 transitions. [2023-11-10 11:53:46,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 838.25) internal successors, (16765), 20 states have internal predecessors, (16765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:46,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 921.0) internal successors, (19341), 21 states have internal predecessors, (19341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:46,407 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 921.0) internal successors, (19341), 21 states have internal predecessors, (19341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:46,407 INFO L175 Difference]: Start difference. First operand has 1095 places, 1109 transitions, 6139 flow. Second operand 20 states and 16765 transitions. [2023-11-10 11:53:46,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1096 places, 1194 transitions, 7895 flow [2023-11-10 11:53:46,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1064 places, 1194 transitions, 7342 flow, removed 147 selfloop flow, removed 32 redundant places. [2023-11-10 11:53:46,638 INFO L231 Difference]: Finished difference. Result has 1076 places, 1105 transitions, 5873 flow [2023-11-10 11:53:46,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=5804, PETRI_DIFFERENCE_MINUEND_PLACES=1045, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1063, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5873, PETRI_PLACES=1076, PETRI_TRANSITIONS=1105} [2023-11-10 11:53:46,639 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 206 predicate places. [2023-11-10 11:53:46,640 INFO L495 AbstractCegarLoop]: Abstraction has has 1076 places, 1105 transitions, 5873 flow [2023-11-10 11:53:46,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:46,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:46,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:46,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:46,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:46,851 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:53:46,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:46,851 INFO L85 PathProgramCache]: Analyzing trace with hash 266919028, now seen corresponding path program 6 times [2023-11-10 11:53:46,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:46,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142333779] [2023-11-10 11:53:46,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:46,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:47,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:47,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:47,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142333779] [2023-11-10 11:53:47,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142333779] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:47,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293053610] [2023-11-10 11:53:47,415 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-10 11:53:47,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:47,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:47,416 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:53:47,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-10 11:53:47,969 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2023-11-10 11:53:47,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:53:47,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-10 11:53:47,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:48,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:53:48,583 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:49,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:53:49,153 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:49,166 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:49,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-10 11:53:49,250 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:49,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293053610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:49,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:49,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2023-11-10 11:53:49,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535236729] [2023-11-10 11:53:49,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:49,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-10 11:53:49,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:49,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-10 11:53:49,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2023-11-10 11:53:49,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 826 out of 921 [2023-11-10 11:53:49,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1076 places, 1105 transitions, 5873 flow. Second operand has 15 states, 15 states have (on average 829.2) internal successors, (12438), 15 states have internal predecessors, (12438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:49,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:49,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 826 of 921 [2023-11-10 11:53:49,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:53,365 INFO L124 PetriNetUnfolderBase]: 1984/14762 cut-off events. [2023-11-10 11:53:53,365 INFO L125 PetriNetUnfolderBase]: For 46395/47179 co-relation queries the response was YES. [2023-11-10 11:53:53,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29277 conditions, 14762 events. 1984/14762 cut-off events. For 46395/47179 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 149432 event pairs, 791 based on Foata normal form. 56/14093 useless extension candidates. Maximal degree in co-relation 29037. Up to 2148 conditions per place. [2023-11-10 11:53:53,492 INFO L140 encePairwiseOnDemand]: 897/921 looper letters, 242 selfloop transitions, 41 changer transitions 108/1195 dead transitions. [2023-11-10 11:53:53,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1088 places, 1195 transitions, 7702 flow [2023-11-10 11:53:53,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-10 11:53:53,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-11-10 11:53:53,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 20839 transitions. [2023-11-10 11:53:53,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9050597176981542 [2023-11-10 11:53:53,501 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 20839 transitions. [2023-11-10 11:53:53,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 20839 transitions. [2023-11-10 11:53:53,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:53,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 20839 transitions. [2023-11-10 11:53:53,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 833.56) internal successors, (20839), 25 states have internal predecessors, (20839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:53,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 921.0) internal successors, (23946), 26 states have internal predecessors, (23946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:53,529 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 921.0) internal successors, (23946), 26 states have internal predecessors, (23946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:53,529 INFO L175 Difference]: Start difference. First operand has 1076 places, 1105 transitions, 5873 flow. Second operand 25 states and 20839 transitions. [2023-11-10 11:53:53,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1088 places, 1195 transitions, 7702 flow [2023-11-10 11:53:53,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1066 places, 1195 transitions, 7258 flow, removed 147 selfloop flow, removed 22 redundant places. [2023-11-10 11:53:53,758 INFO L231 Difference]: Finished difference. Result has 1081 places, 1063 transitions, 5240 flow [2023-11-10 11:53:53,759 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=5647, PETRI_DIFFERENCE_MINUEND_PLACES=1042, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1064, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=5240, PETRI_PLACES=1081, PETRI_TRANSITIONS=1063} [2023-11-10 11:53:53,760 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 211 predicate places. [2023-11-10 11:53:53,760 INFO L495 AbstractCegarLoop]: Abstraction has has 1081 places, 1063 transitions, 5240 flow [2023-11-10 11:53:53,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 829.2) internal successors, (12438), 15 states have internal predecessors, (12438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:53,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:53,762 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:53,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-10 11:53:53,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:53,973 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:53:53,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:53,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1654151126, now seen corresponding path program 7 times [2023-11-10 11:53:53,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:53,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582575398] [2023-11-10 11:53:53,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:53,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:54,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:53:54,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:54,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582575398] [2023-11-10 11:53:54,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582575398] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:54,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144593170] [2023-11-10 11:53:54,462 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-10 11:53:54,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:54,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:54,464 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:53:54,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-10 11:53:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:55,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-10 11:53:55,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:55,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:53:55,582 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:56,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:53:56,203 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:56,217 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-10 11:53:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-10 11:53:56,251 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:56,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144593170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:56,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:56,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2023-11-10 11:53:56,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839750592] [2023-11-10 11:53:56,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:56,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-10 11:53:56,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:56,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-10 11:53:56,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-11-10 11:53:56,258 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 826 out of 921 [2023-11-10 11:53:56,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1081 places, 1063 transitions, 5240 flow. Second operand has 14 states, 14 states have (on average 829.4285714285714) internal successors, (11612), 14 states have internal predecessors, (11612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:56,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:56,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 826 of 921 [2023-11-10 11:53:56,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:59,599 INFO L124 PetriNetUnfolderBase]: 1682/12288 cut-off events. [2023-11-10 11:53:59,600 INFO L125 PetriNetUnfolderBase]: For 39521/40335 co-relation queries the response was YES. [2023-11-10 11:53:59,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24851 conditions, 12288 events. 1682/12288 cut-off events. For 39521/40335 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 117004 event pairs, 685 based on Foata normal form. 56/11749 useless extension candidates. Maximal degree in co-relation 24609. Up to 1824 conditions per place. [2023-11-10 11:53:59,705 INFO L140 encePairwiseOnDemand]: 897/921 looper letters, 235 selfloop transitions, 47 changer transitions 73/1159 dead transitions. [2023-11-10 11:53:59,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1084 places, 1159 transitions, 7105 flow [2023-11-10 11:53:59,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-10 11:53:59,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-10 11:53:59,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 20011 transitions. [2023-11-10 11:53:59,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9053112558812885 [2023-11-10 11:53:59,714 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 20011 transitions. [2023-11-10 11:53:59,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 20011 transitions. [2023-11-10 11:53:59,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:59,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 20011 transitions. [2023-11-10 11:53:59,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 833.7916666666666) internal successors, (20011), 24 states have internal predecessors, (20011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:59,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 921.0) internal successors, (23025), 25 states have internal predecessors, (23025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:59,865 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 921.0) internal successors, (23025), 25 states have internal predecessors, (23025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:59,865 INFO L175 Difference]: Start difference. First operand has 1081 places, 1063 transitions, 5240 flow. Second operand 24 states and 20011 transitions. [2023-11-10 11:53:59,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1084 places, 1159 transitions, 7105 flow [2023-11-10 11:54:00,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1044 places, 1159 transitions, 6543 flow, removed 185 selfloop flow, removed 40 redundant places. [2023-11-10 11:54:00,021 INFO L231 Difference]: Finished difference. Result has 1059 places, 1057 transitions, 5080 flow [2023-11-10 11:54:00,022 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=4938, PETRI_DIFFERENCE_MINUEND_PLACES=1021, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1063, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1016, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=5080, PETRI_PLACES=1059, PETRI_TRANSITIONS=1057} [2023-11-10 11:54:00,023 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 189 predicate places. [2023-11-10 11:54:00,023 INFO L495 AbstractCegarLoop]: Abstraction has has 1059 places, 1057 transitions, 5080 flow [2023-11-10 11:54:00,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 829.4285714285714) internal successors, (11612), 14 states have internal predecessors, (11612), 0 states have call successors, (0), 0 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 11:54:00,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:00,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:00,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-10 11:54:00,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:54:00,225 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:54:00,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:00,225 INFO L85 PathProgramCache]: Analyzing trace with hash -915755020, now seen corresponding path program 8 times [2023-11-10 11:54:00,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:00,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389685091] [2023-11-10 11:54:00,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:00,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:00,654 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 11:54:00,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:00,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389685091] [2023-11-10 11:54:00,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389685091] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:54:00,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87688576] [2023-11-10 11:54:00,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-10 11:54:00,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:54:00,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:54:00,657 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:54:00,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-10 11:54:01,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-10 11:54:01,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:54:01,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-10 11:54:01,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:54:01,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:01,796 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 11:54:02,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:02,437 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 11:54:02,451 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 11:54:02,486 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 11:54:02,486 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:54:02,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87688576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:02,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:54:02,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2023-11-10 11:54:02,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155151966] [2023-11-10 11:54:02,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:02,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-10 11:54:02,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:02,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-10 11:54:02,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-11-10 11:54:02,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 826 out of 921 [2023-11-10 11:54:02,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1059 places, 1057 transitions, 5080 flow. Second operand has 14 states, 14 states have (on average 829.4285714285714) internal successors, (11612), 14 states have internal predecessors, (11612), 0 states have call successors, (0), 0 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 11:54:02,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:02,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 826 of 921 [2023-11-10 11:54:02,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:05,727 INFO L124 PetriNetUnfolderBase]: 1611/11593 cut-off events. [2023-11-10 11:54:05,727 INFO L125 PetriNetUnfolderBase]: For 38764/39474 co-relation queries the response was YES. [2023-11-10 11:54:05,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23708 conditions, 11593 events. 1611/11593 cut-off events. For 38764/39474 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 108262 event pairs, 683 based on Foata normal form. 60/11090 useless extension candidates. Maximal degree in co-relation 23473. Up to 1820 conditions per place. [2023-11-10 11:54:05,831 INFO L140 encePairwiseOnDemand]: 897/921 looper letters, 236 selfloop transitions, 48 changer transitions 49/1137 dead transitions. [2023-11-10 11:54:05,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1067 places, 1137 transitions, 6711 flow [2023-11-10 11:54:05,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-10 11:54:05,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-10 11:54:05,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 17516 transitions. [2023-11-10 11:54:05,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9056408665529186 [2023-11-10 11:54:05,839 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 17516 transitions. [2023-11-10 11:54:05,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 17516 transitions. [2023-11-10 11:54:05,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:05,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 17516 transitions. [2023-11-10 11:54:05,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 834.0952380952381) internal successors, (17516), 21 states have internal predecessors, (17516), 0 states have call successors, (0), 0 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 11:54:05,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 921.0) internal successors, (20262), 22 states have internal predecessors, (20262), 0 states have call successors, (0), 0 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 11:54:05,865 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 921.0) internal successors, (20262), 22 states have internal predecessors, (20262), 0 states have call successors, (0), 0 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 11:54:05,865 INFO L175 Difference]: Start difference. First operand has 1059 places, 1057 transitions, 5080 flow. Second operand 21 states and 17516 transitions. [2023-11-10 11:54:05,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1067 places, 1137 transitions, 6711 flow [2023-11-10 11:54:05,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1038 places, 1137 transitions, 6312 flow, removed 132 selfloop flow, removed 29 redundant places. [2023-11-10 11:54:06,001 INFO L231 Difference]: Finished difference. Result has 1052 places, 1058 transitions, 5104 flow [2023-11-10 11:54:06,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=4878, PETRI_DIFFERENCE_MINUEND_PLACES=1018, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1057, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1011, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=5104, PETRI_PLACES=1052, PETRI_TRANSITIONS=1058} [2023-11-10 11:54:06,002 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 182 predicate places. [2023-11-10 11:54:06,002 INFO L495 AbstractCegarLoop]: Abstraction has has 1052 places, 1058 transitions, 5104 flow [2023-11-10 11:54:06,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 829.4285714285714) internal successors, (11612), 14 states have internal predecessors, (11612), 0 states have call successors, (0), 0 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 11:54:06,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:06,004 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:06,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-10 11:54:06,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-10 11:54:06,210 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:54:06,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:06,211 INFO L85 PathProgramCache]: Analyzing trace with hash 887450740, now seen corresponding path program 9 times [2023-11-10 11:54:06,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:06,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900120197] [2023-11-10 11:54:06,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:06,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:06,669 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 11:54:06,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:06,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900120197] [2023-11-10 11:54:06,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900120197] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:54:06,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322041088] [2023-11-10 11:54:06,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-10 11:54:06,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:54:06,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:54:06,672 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:54:06,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-10 11:54:07,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-10 11:54:07,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:54:07,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-10 11:54:07,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:54:07,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:07,962 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 11:54:08,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:08,624 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 11:54:08,638 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 11:54:08,687 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 11:54:08,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:54:08,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322041088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:08,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:54:08,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2023-11-10 11:54:08,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684057265] [2023-11-10 11:54:08,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:08,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-10 11:54:08,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:08,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-10 11:54:08,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2023-11-10 11:54:08,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 826 out of 921 [2023-11-10 11:54:08,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1052 places, 1058 transitions, 5104 flow. Second operand has 15 states, 15 states have (on average 829.2) internal successors, (12438), 15 states have internal predecessors, (12438), 0 states have call successors, (0), 0 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 11:54:08,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:08,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 826 of 921 [2023-11-10 11:54:08,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:11,839 INFO L124 PetriNetUnfolderBase]: 1586/11568 cut-off events. [2023-11-10 11:54:11,839 INFO L125 PetriNetUnfolderBase]: For 34619/35569 co-relation queries the response was YES. [2023-11-10 11:54:11,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22982 conditions, 11568 events. 1586/11568 cut-off events. For 34619/35569 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 108016 event pairs, 665 based on Foata normal form. 79/11087 useless extension candidates. Maximal degree in co-relation 22764. Up to 1782 conditions per place. [2023-11-10 11:54:11,941 INFO L140 encePairwiseOnDemand]: 897/921 looper letters, 230 selfloop transitions, 44 changer transitions 55/1133 dead transitions. [2023-11-10 11:54:11,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1067 places, 1133 transitions, 6503 flow [2023-11-10 11:54:11,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-10 11:54:11,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-10 11:54:11,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 18343 transitions. [2023-11-10 11:54:12,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.905290691935643 [2023-11-10 11:54:12,106 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 18343 transitions. [2023-11-10 11:54:12,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 18343 transitions. [2023-11-10 11:54:12,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:12,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 18343 transitions. [2023-11-10 11:54:12,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 833.7727272727273) internal successors, (18343), 22 states have internal predecessors, (18343), 0 states have call successors, (0), 0 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 11:54:12,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 921.0) internal successors, (21183), 23 states have internal predecessors, (21183), 0 states have call successors, (0), 0 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 11:54:12,135 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 921.0) internal successors, (21183), 23 states have internal predecessors, (21183), 0 states have call successors, (0), 0 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 11:54:12,136 INFO L175 Difference]: Start difference. First operand has 1052 places, 1058 transitions, 5104 flow. Second operand 22 states and 18343 transitions. [2023-11-10 11:54:12,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1067 places, 1133 transitions, 6503 flow [2023-11-10 11:54:12,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1040 places, 1133 transitions, 6188 flow, removed 87 selfloop flow, removed 27 redundant places. [2023-11-10 11:54:12,262 INFO L231 Difference]: Finished difference. Result has 1052 places, 1052 transitions, 4945 flow [2023-11-10 11:54:12,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=4897, PETRI_DIFFERENCE_MINUEND_PLACES=1019, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1058, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1014, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=4945, PETRI_PLACES=1052, PETRI_TRANSITIONS=1052} [2023-11-10 11:54:12,264 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 182 predicate places. [2023-11-10 11:54:12,264 INFO L495 AbstractCegarLoop]: Abstraction has has 1052 places, 1052 transitions, 4945 flow [2023-11-10 11:54:12,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 829.2) internal successors, (12438), 15 states have internal predecessors, (12438), 0 states have call successors, (0), 0 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 11:54:12,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:12,265 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:12,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-10 11:54:12,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-10 11:54:12,466 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:54:12,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:12,467 INFO L85 PathProgramCache]: Analyzing trace with hash -993188650, now seen corresponding path program 10 times [2023-11-10 11:54:12,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:12,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930649087] [2023-11-10 11:54:12,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:12,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:12,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:54:12,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:12,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930649087] [2023-11-10 11:54:12,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930649087] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:54:12,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870395059] [2023-11-10 11:54:12,850 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-10 11:54:12,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:54:12,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:54:12,853 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:54:12,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-10 11:54:13,656 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-10 11:54:13,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:54:13,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-10 11:54:13,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:54:14,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:14,331 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 11:54:14,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:14,989 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 11:54:15,004 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 11:54:15,041 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 11:54:15,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:54:15,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870395059] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:15,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:54:15,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2023-11-10 11:54:15,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183715927] [2023-11-10 11:54:15,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:15,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-10 11:54:15,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:15,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-10 11:54:15,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-11-10 11:54:15,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 819 out of 921 [2023-11-10 11:54:15,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1052 places, 1052 transitions, 4945 flow. Second operand has 16 states, 16 states have (on average 822.375) internal successors, (13158), 16 states have internal predecessors, (13158), 0 states have call successors, (0), 0 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 11:54:15,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:15,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 819 of 921 [2023-11-10 11:54:15,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:18,589 INFO L124 PetriNetUnfolderBase]: 1630/12754 cut-off events. [2023-11-10 11:54:18,590 INFO L125 PetriNetUnfolderBase]: For 36217/37079 co-relation queries the response was YES. [2023-11-10 11:54:18,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24225 conditions, 12754 events. 1630/12754 cut-off events. For 36217/37079 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 123697 event pairs, 647 based on Foata normal form. 80/12219 useless extension candidates. Maximal degree in co-relation 24029. Up to 1781 conditions per place. [2023-11-10 11:54:18,695 INFO L140 encePairwiseOnDemand]: 893/921 looper letters, 202 selfloop transitions, 39 changer transitions 82/1121 dead transitions. [2023-11-10 11:54:18,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1062 places, 1121 transitions, 6238 flow [2023-11-10 11:54:18,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-10 11:54:18,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-10 11:54:18,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 19828 transitions. [2023-11-10 11:54:18,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8970322113644589 [2023-11-10 11:54:18,704 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 19828 transitions. [2023-11-10 11:54:18,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 19828 transitions. [2023-11-10 11:54:18,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:18,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 19828 transitions. [2023-11-10 11:54:18,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 826.1666666666666) internal successors, (19828), 24 states have internal predecessors, (19828), 0 states have call successors, (0), 0 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 11:54:18,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 921.0) internal successors, (23025), 25 states have internal predecessors, (23025), 0 states have call successors, (0), 0 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 11:54:18,731 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 921.0) internal successors, (23025), 25 states have internal predecessors, (23025), 0 states have call successors, (0), 0 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 11:54:18,731 INFO L175 Difference]: Start difference. First operand has 1052 places, 1052 transitions, 4945 flow. Second operand 24 states and 19828 transitions. [2023-11-10 11:54:18,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1062 places, 1121 transitions, 6238 flow [2023-11-10 11:54:18,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1037 places, 1121 transitions, 5904 flow, removed 96 selfloop flow, removed 25 redundant places. [2023-11-10 11:54:18,850 INFO L231 Difference]: Finished difference. Result has 1049 places, 1020 transitions, 4566 flow [2023-11-10 11:54:18,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=4733, PETRI_DIFFERENCE_MINUEND_PLACES=1014, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1013, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=4566, PETRI_PLACES=1049, PETRI_TRANSITIONS=1020} [2023-11-10 11:54:18,852 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 179 predicate places. [2023-11-10 11:54:18,852 INFO L495 AbstractCegarLoop]: Abstraction has has 1049 places, 1020 transitions, 4566 flow [2023-11-10 11:54:18,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 822.375) internal successors, (13158), 16 states have internal predecessors, (13158), 0 states have call successors, (0), 0 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 11:54:18,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:18,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:18,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-10 11:54:19,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:54:19,064 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:54:19,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:19,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1562407260, now seen corresponding path program 11 times [2023-11-10 11:54:19,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:19,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529562178] [2023-11-10 11:54:19,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:19,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:19,394 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 11:54:19,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:19,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529562178] [2023-11-10 11:54:19,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529562178] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:54:19,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451369309] [2023-11-10 11:54:19,395 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-10 11:54:19,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:54:19,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:54:19,396 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:54:19,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-10 11:54:19,950 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-10 11:54:19,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:54:19,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-10 11:54:19,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:54:20,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:20,864 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 11:54:20,877 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 11:54:20,907 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 11:54:20,908 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:54:20,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451369309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:20,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:54:20,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2023-11-10 11:54:20,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018879995] [2023-11-10 11:54:20,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:20,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:54:20,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:20,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:54:20,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-10 11:54:20,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 830 out of 921 [2023-11-10 11:54:20,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1049 places, 1020 transitions, 4566 flow. Second operand has 12 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 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 11:54:20,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:20,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 830 of 921 [2023-11-10 11:54:20,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:23,165 INFO L124 PetriNetUnfolderBase]: 1107/8058 cut-off events. [2023-11-10 11:54:23,165 INFO L125 PetriNetUnfolderBase]: For 31650/32122 co-relation queries the response was YES. [2023-11-10 11:54:23,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17552 conditions, 8058 events. 1107/8058 cut-off events. For 31650/32122 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 66643 event pairs, 205 based on Foata normal form. 8/7665 useless extension candidates. Maximal degree in co-relation 17435. Up to 641 conditions per place. [2023-11-10 11:54:23,226 INFO L140 encePairwiseOnDemand]: 908/921 looper letters, 202 selfloop transitions, 8 changer transitions 83/1141 dead transitions. [2023-11-10 11:54:23,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1043 places, 1141 transitions, 7243 flow [2023-11-10 11:54:23,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-10 11:54:23,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-10 11:54:23,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 16753 transitions. [2023-11-10 11:54:23,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9095005428881651 [2023-11-10 11:54:23,234 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 16753 transitions. [2023-11-10 11:54:23,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 16753 transitions. [2023-11-10 11:54:23,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:23,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 16753 transitions. [2023-11-10 11:54:23,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 837.65) internal successors, (16753), 20 states have internal predecessors, (16753), 0 states have call successors, (0), 0 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 11:54:23,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 921.0) internal successors, (19341), 21 states have internal predecessors, (19341), 0 states have call successors, (0), 0 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 11:54:23,257 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 921.0) internal successors, (19341), 21 states have internal predecessors, (19341), 0 states have call successors, (0), 0 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 11:54:23,257 INFO L175 Difference]: Start difference. First operand has 1049 places, 1020 transitions, 4566 flow. Second operand 20 states and 16753 transitions. [2023-11-10 11:54:23,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1043 places, 1141 transitions, 7243 flow [2023-11-10 11:54:23,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1014 places, 1141 transitions, 6798 flow, removed 147 selfloop flow, removed 29 redundant places. [2023-11-10 11:54:23,377 INFO L231 Difference]: Finished difference. Result has 1029 places, 1022 transitions, 4448 flow [2023-11-10 11:54:23,378 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=4355, PETRI_DIFFERENCE_MINUEND_PLACES=995, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1020, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1013, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4448, PETRI_PLACES=1029, PETRI_TRANSITIONS=1022} [2023-11-10 11:54:23,378 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 159 predicate places. [2023-11-10 11:54:23,379 INFO L495 AbstractCegarLoop]: Abstraction has has 1029 places, 1022 transitions, 4448 flow [2023-11-10 11:54:23,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 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 11:54:23,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:23,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:23,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-10 11:54:23,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:54:23,590 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:54:23,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:23,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1129707338, now seen corresponding path program 12 times [2023-11-10 11:54:23,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:23,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185808499] [2023-11-10 11:54:23,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:23,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:23,929 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 11:54:23,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:23,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185808499] [2023-11-10 11:54:23,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185808499] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:54:23,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414325800] [2023-11-10 11:54:23,930 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-10 11:54:23,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:54:23,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:54:24,105 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:54:24,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-10 11:54:24,743 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2023-11-10 11:54:24,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:54:24,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-10 11:54:24,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:54:25,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:25,561 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 11:54:25,588 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 11:54:25,620 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 11:54:25,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:54:25,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414325800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:25,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:54:25,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2023-11-10 11:54:25,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104717624] [2023-11-10 11:54:25,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:25,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:54:25,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:25,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:54:25,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-10 11:54:25,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 830 out of 921 [2023-11-10 11:54:25,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1029 places, 1022 transitions, 4448 flow. Second operand has 12 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 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 11:54:25,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:25,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 830 of 921 [2023-11-10 11:54:25,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:28,093 INFO L124 PetriNetUnfolderBase]: 1131/8611 cut-off events. [2023-11-10 11:54:28,093 INFO L125 PetriNetUnfolderBase]: For 28450/29385 co-relation queries the response was YES. [2023-11-10 11:54:28,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17475 conditions, 8611 events. 1131/8611 cut-off events. For 28450/29385 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 73499 event pairs, 123 based on Foata normal form. 46/8239 useless extension candidates. Maximal degree in co-relation 17271. Up to 749 conditions per place. [2023-11-10 11:54:28,186 INFO L140 encePairwiseOnDemand]: 901/921 looper letters, 170 selfloop transitions, 38 changer transitions 60/1116 dead transitions. [2023-11-10 11:54:28,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1034 places, 1116 transitions, 6304 flow [2023-11-10 11:54:28,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-10 11:54:28,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-10 11:54:28,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 15925 transitions. [2023-11-10 11:54:28,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9100520029715984 [2023-11-10 11:54:28,196 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 15925 transitions. [2023-11-10 11:54:28,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 15925 transitions. [2023-11-10 11:54:28,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:28,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 15925 transitions. [2023-11-10 11:54:28,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 838.1578947368421) internal successors, (15925), 19 states have internal predecessors, (15925), 0 states have call successors, (0), 0 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 11:54:28,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 921.0) internal successors, (18420), 20 states have internal predecessors, (18420), 0 states have call successors, (0), 0 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 11:54:28,218 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 921.0) internal successors, (18420), 20 states have internal predecessors, (18420), 0 states have call successors, (0), 0 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 11:54:28,219 INFO L175 Difference]: Start difference. First operand has 1029 places, 1022 transitions, 4448 flow. Second operand 19 states and 15925 transitions. [2023-11-10 11:54:28,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1034 places, 1116 transitions, 6304 flow [2023-11-10 11:54:28,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1012 places, 1116 transitions, 6092 flow, removed 83 selfloop flow, removed 22 redundant places. [2023-11-10 11:54:28,312 INFO L231 Difference]: Finished difference. Result has 1026 places, 1022 transitions, 4513 flow [2023-11-10 11:54:28,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=4371, PETRI_DIFFERENCE_MINUEND_PLACES=994, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1022, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=984, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4513, PETRI_PLACES=1026, PETRI_TRANSITIONS=1022} [2023-11-10 11:54:28,313 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 156 predicate places. [2023-11-10 11:54:28,313 INFO L495 AbstractCegarLoop]: Abstraction has has 1026 places, 1022 transitions, 4513 flow [2023-11-10 11:54:28,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 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 11:54:28,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:28,315 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:28,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-10 11:54:28,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-10 11:54:28,525 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:54:28,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:28,526 INFO L85 PathProgramCache]: Analyzing trace with hash 635578984, now seen corresponding path program 13 times [2023-11-10 11:54:28,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:28,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475771459] [2023-11-10 11:54:28,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:28,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:28,826 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 11:54:28,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:28,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475771459] [2023-11-10 11:54:28,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475771459] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:54:28,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783538521] [2023-11-10 11:54:28,827 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-10 11:54:28,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:54:28,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:54:28,828 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:54:28,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-10 11:54:29,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:29,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-10 11:54:29,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:54:30,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:30,354 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 11:54:30,368 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 11:54:30,398 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 11:54:30,398 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:54:30,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783538521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:30,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:54:30,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2023-11-10 11:54:30,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177024793] [2023-11-10 11:54:30,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:30,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:54:30,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:30,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:54:30,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2023-11-10 11:54:30,404 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 830 out of 921 [2023-11-10 11:54:30,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1026 places, 1022 transitions, 4513 flow. Second operand has 12 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 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 11:54:30,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:30,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 830 of 921 [2023-11-10 11:54:30,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:32,651 INFO L124 PetriNetUnfolderBase]: 1095/8296 cut-off events. [2023-11-10 11:54:32,652 INFO L125 PetriNetUnfolderBase]: For 27545/28007 co-relation queries the response was YES. [2023-11-10 11:54:32,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16846 conditions, 8296 events. 1095/8296 cut-off events. For 27545/28007 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 69998 event pairs, 202 based on Foata normal form. 7/7887 useless extension candidates. Maximal degree in co-relation 16654. Up to 744 conditions per place. [2023-11-10 11:54:32,716 INFO L140 encePairwiseOnDemand]: 907/921 looper letters, 181 selfloop transitions, 6 changer transitions 61/1096 dead transitions. [2023-11-10 11:54:32,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1041 places, 1096 transitions, 6026 flow [2023-11-10 11:54:32,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-10 11:54:32,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-10 11:54:32,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 16731 transitions. [2023-11-10 11:54:32,725 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9083061889250814 [2023-11-10 11:54:32,725 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 16731 transitions. [2023-11-10 11:54:32,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 16731 transitions. [2023-11-10 11:54:32,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:32,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 16731 transitions. [2023-11-10 11:54:32,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 836.55) internal successors, (16731), 20 states have internal predecessors, (16731), 0 states have call successors, (0), 0 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 11:54:32,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 921.0) internal successors, (19341), 21 states have internal predecessors, (19341), 0 states have call successors, (0), 0 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 11:54:32,748 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 921.0) internal successors, (19341), 21 states have internal predecessors, (19341), 0 states have call successors, (0), 0 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 11:54:32,748 INFO L175 Difference]: Start difference. First operand has 1026 places, 1022 transitions, 4513 flow. Second operand 20 states and 16731 transitions. [2023-11-10 11:54:32,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1041 places, 1096 transitions, 6026 flow [2023-11-10 11:54:32,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1011 places, 1096 transitions, 5730 flow, removed 65 selfloop flow, removed 30 redundant places. [2023-11-10 11:54:32,863 INFO L231 Difference]: Finished difference. Result has 1023 places, 1017 transitions, 4241 flow [2023-11-10 11:54:32,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=4303, PETRI_DIFFERENCE_MINUEND_PLACES=992, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1022, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1016, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4241, PETRI_PLACES=1023, PETRI_TRANSITIONS=1017} [2023-11-10 11:54:32,864 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 153 predicate places. [2023-11-10 11:54:32,864 INFO L495 AbstractCegarLoop]: Abstraction has has 1023 places, 1017 transitions, 4241 flow [2023-11-10 11:54:32,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 833.6666666666666) internal successors, (10004), 12 states have internal predecessors, (10004), 0 states have call successors, (0), 0 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 11:54:32,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:32,866 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:32,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-10 11:54:33,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-10 11:54:33,068 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:54:33,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:33,068 INFO L85 PathProgramCache]: Analyzing trace with hash -976549358, now seen corresponding path program 14 times [2023-11-10 11:54:33,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:33,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493812247] [2023-11-10 11:54:33,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:33,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:33,412 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 11:54:33,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:33,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493812247] [2023-11-10 11:54:33,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493812247] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:54:33,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582372387] [2023-11-10 11:54:33,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-10 11:54:33,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:54:33,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:54:33,413 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:54:33,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-10 11:54:33,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-10 11:54:33,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:54:33,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-10 11:54:33,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:54:34,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:34,563 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 11:54:35,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:35,283 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 11:54:35,298 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 11:54:35,330 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 11:54:35,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:54:35,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582372387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:35,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:54:35,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2023-11-10 11:54:35,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43148038] [2023-11-10 11:54:35,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:35,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-10 11:54:35,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:35,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-10 11:54:35,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2023-11-10 11:54:35,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 826 out of 921 [2023-11-10 11:54:35,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1023 places, 1017 transitions, 4241 flow. Second operand has 15 states, 15 states have (on average 829.2) internal successors, (12438), 15 states have internal predecessors, (12438), 0 states have call successors, (0), 0 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 11:54:35,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:35,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 826 of 921 [2023-11-10 11:54:35,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:37,502 INFO L124 PetriNetUnfolderBase]: 1167/7020 cut-off events. [2023-11-10 11:54:37,502 INFO L125 PetriNetUnfolderBase]: For 24765/25137 co-relation queries the response was YES. [2023-11-10 11:54:37,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15713 conditions, 7020 events. 1167/7020 cut-off events. For 24765/25137 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 53337 event pairs, 470 based on Foata normal form. 7/6679 useless extension candidates. Maximal degree in co-relation 15515. Up to 1184 conditions per place. [2023-11-10 11:54:37,556 INFO L140 encePairwiseOnDemand]: 904/921 looper letters, 165 selfloop transitions, 46 changer transitions 76/1091 dead transitions. [2023-11-10 11:54:37,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1027 places, 1091 transitions, 5605 flow [2023-11-10 11:54:37,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-10 11:54:37,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-10 11:54:37,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 18331 transitions. [2023-11-10 11:54:37,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9046984503010561 [2023-11-10 11:54:37,564 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 18331 transitions. [2023-11-10 11:54:37,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 18331 transitions. [2023-11-10 11:54:37,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:37,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 18331 transitions. [2023-11-10 11:54:37,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 833.2272727272727) internal successors, (18331), 22 states have internal predecessors, (18331), 0 states have call successors, (0), 0 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 11:54:37,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 921.0) internal successors, (21183), 23 states have internal predecessors, (21183), 0 states have call successors, (0), 0 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 11:54:37,590 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 921.0) internal successors, (21183), 23 states have internal predecessors, (21183), 0 states have call successors, (0), 0 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 11:54:37,590 INFO L175 Difference]: Start difference. First operand has 1023 places, 1017 transitions, 4241 flow. Second operand 22 states and 18331 transitions. [2023-11-10 11:54:37,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1027 places, 1091 transitions, 5605 flow [2023-11-10 11:54:37,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1007 places, 1091 transitions, 5440 flow, removed 61 selfloop flow, removed 20 redundant places. [2023-11-10 11:54:37,681 INFO L231 Difference]: Finished difference. Result has 1019 places, 1004 transitions, 4148 flow [2023-11-10 11:54:37,682 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=4188, PETRI_DIFFERENCE_MINUEND_PLACES=986, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1017, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=971, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=4148, PETRI_PLACES=1019, PETRI_TRANSITIONS=1004} [2023-11-10 11:54:37,683 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 149 predicate places. [2023-11-10 11:54:37,683 INFO L495 AbstractCegarLoop]: Abstraction has has 1019 places, 1004 transitions, 4148 flow [2023-11-10 11:54:37,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 829.2) internal successors, (12438), 15 states have internal predecessors, (12438), 0 states have call successors, (0), 0 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 11:54:37,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:37,685 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:37,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-10 11:54:37,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-10 11:54:37,888 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:54:37,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:37,888 INFO L85 PathProgramCache]: Analyzing trace with hash 404914994, now seen corresponding path program 15 times [2023-11-10 11:54:37,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:37,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473371302] [2023-11-10 11:54:37,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:37,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:38,434 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 11:54:38,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:38,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473371302] [2023-11-10 11:54:38,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473371302] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:54:38,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125739769] [2023-11-10 11:54:38,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-10 11:54:38,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:54:38,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:54:38,436 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:54:38,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-10 11:54:39,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-10 11:54:39,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:54:39,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-10 11:54:39,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:54:39,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:39,732 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 11:54:40,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:40,316 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 11:54:40,330 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 11:54:40,364 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 11:54:40,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:54:40,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125739769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:40,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:54:40,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2023-11-10 11:54:40,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161521250] [2023-11-10 11:54:40,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:40,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-10 11:54:40,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:40,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-10 11:54:40,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-11-10 11:54:40,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 826 out of 921 [2023-11-10 11:54:40,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1019 places, 1004 transitions, 4148 flow. Second operand has 15 states, 15 states have (on average 829.2) internal successors, (12438), 15 states have internal predecessors, (12438), 0 states have call successors, (0), 0 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 11:54:40,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:40,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 826 of 921 [2023-11-10 11:54:40,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:42,957 INFO L124 PetriNetUnfolderBase]: 1220/8036 cut-off events. [2023-11-10 11:54:42,957 INFO L125 PetriNetUnfolderBase]: For 27711/28495 co-relation queries the response was YES. [2023-11-10 11:54:43,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17076 conditions, 8036 events. 1220/8036 cut-off events. For 27711/28495 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 64763 event pairs, 234 based on Foata normal form. 40/7694 useless extension candidates. Maximal degree in co-relation 16874. Up to 711 conditions per place. [2023-11-10 11:54:43,014 INFO L140 encePairwiseOnDemand]: 898/921 looper letters, 130 selfloop transitions, 58 changer transitions 143/1135 dead transitions. [2023-11-10 11:54:43,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1030 places, 1135 transitions, 6061 flow [2023-11-10 11:54:43,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-10 11:54:43,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-11-10 11:54:43,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 26662 transitions. [2023-11-10 11:54:43,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9046552660152009 [2023-11-10 11:54:43,026 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 26662 transitions. [2023-11-10 11:54:43,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 26662 transitions. [2023-11-10 11:54:43,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:43,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 26662 transitions. [2023-11-10 11:54:43,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 833.1875) internal successors, (26662), 32 states have internal predecessors, (26662), 0 states have call successors, (0), 0 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 11:54:43,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 921.0) internal successors, (30393), 33 states have internal predecessors, (30393), 0 states have call successors, (0), 0 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 11:54:43,064 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 921.0) internal successors, (30393), 33 states have internal predecessors, (30393), 0 states have call successors, (0), 0 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 11:54:43,064 INFO L175 Difference]: Start difference. First operand has 1019 places, 1004 transitions, 4148 flow. Second operand 32 states and 26662 transitions. [2023-11-10 11:54:43,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1030 places, 1135 transitions, 6061 flow [2023-11-10 11:54:43,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1006 places, 1135 transitions, 5560 flow, removed 175 selfloop flow, removed 24 redundant places. [2023-11-10 11:54:43,146 INFO L231 Difference]: Finished difference. Result has 1022 places, 969 transitions, 3635 flow [2023-11-10 11:54:43,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=3861, PETRI_DIFFERENCE_MINUEND_PLACES=975, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1004, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=947, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=3635, PETRI_PLACES=1022, PETRI_TRANSITIONS=969} [2023-11-10 11:54:43,147 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 152 predicate places. [2023-11-10 11:54:43,148 INFO L495 AbstractCegarLoop]: Abstraction has has 1022 places, 969 transitions, 3635 flow [2023-11-10 11:54:43,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 829.2) internal successors, (12438), 15 states have internal predecessors, (12438), 0 states have call successors, (0), 0 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 11:54:43,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:43,150 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:43,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-10 11:54:43,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-10 11:54:43,350 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:54:43,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:43,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1422679246, now seen corresponding path program 16 times [2023-11-10 11:54:43,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:43,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874587519] [2023-11-10 11:54:43,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:43,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:43,794 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 11:54:43,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:43,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874587519] [2023-11-10 11:54:43,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874587519] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:54:43,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171153298] [2023-11-10 11:54:43,795 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-10 11:54:43,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:54:43,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:54:43,796 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:54:43,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-10 11:54:44,500 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-10 11:54:44,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:54:44,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-10 11:54:44,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:54:45,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:45,093 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 11:54:45,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:54:45,692 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 11:54:45,710 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 11:54:45,744 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 11:54:45,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:54:45,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171153298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:54:45,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:54:45,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2023-11-10 11:54:45,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40740941] [2023-11-10 11:54:45,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:54:45,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-10 11:54:45,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:54:45,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-10 11:54:45,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2023-11-10 11:54:45,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 819 out of 921 [2023-11-10 11:54:45,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1022 places, 969 transitions, 3635 flow. Second operand has 17 states, 17 states have (on average 822.1764705882352) internal successors, (13977), 17 states have internal predecessors, (13977), 0 states have call successors, (0), 0 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 11:54:45,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:54:45,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 819 of 921 [2023-11-10 11:54:45,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:54:47,662 INFO L124 PetriNetUnfolderBase]: 870/5978 cut-off events. [2023-11-10 11:54:47,662 INFO L125 PetriNetUnfolderBase]: For 23782/24892 co-relation queries the response was YES. [2023-11-10 11:54:47,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13218 conditions, 5978 events. 870/5978 cut-off events. For 23782/24892 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 43131 event pairs, 216 based on Foata normal form. 53/5761 useless extension candidates. Maximal degree in co-relation 13142. Up to 698 conditions per place. [2023-11-10 11:54:47,703 INFO L140 encePairwiseOnDemand]: 894/921 looper letters, 124 selfloop transitions, 52 changer transitions 73/1047 dead transitions. [2023-11-10 11:54:47,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1019 places, 1047 transitions, 4952 flow [2023-11-10 11:54:47,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-10 11:54:47,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-10 11:54:47,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 19826 transitions. [2023-11-10 11:54:47,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8969417300036192 [2023-11-10 11:54:47,712 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 19826 transitions. [2023-11-10 11:54:47,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 19826 transitions. [2023-11-10 11:54:47,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:54:47,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 19826 transitions. [2023-11-10 11:54:47,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 826.0833333333334) internal successors, (19826), 24 states have internal predecessors, (19826), 0 states have call successors, (0), 0 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 11:54:47,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 921.0) internal successors, (23025), 25 states have internal predecessors, (23025), 0 states have call successors, (0), 0 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 11:54:47,740 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 921.0) internal successors, (23025), 25 states have internal predecessors, (23025), 0 states have call successors, (0), 0 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 11:54:47,740 INFO L175 Difference]: Start difference. First operand has 1022 places, 969 transitions, 3635 flow. Second operand 24 states and 19826 transitions. [2023-11-10 11:54:47,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1019 places, 1047 transitions, 4952 flow [2023-11-10 11:54:47,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 980 places, 1047 transitions, 4334 flow, removed 232 selfloop flow, removed 39 redundant places. [2023-11-10 11:54:47,796 INFO L231 Difference]: Finished difference. Result has 994 places, 957 transitions, 3330 flow [2023-11-10 11:54:47,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=3259, PETRI_DIFFERENCE_MINUEND_PLACES=957, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=969, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=917, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=3330, PETRI_PLACES=994, PETRI_TRANSITIONS=957} [2023-11-10 11:54:47,797 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 124 predicate places. [2023-11-10 11:54:47,798 INFO L495 AbstractCegarLoop]: Abstraction has has 994 places, 957 transitions, 3330 flow [2023-11-10 11:54:47,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 822.1764705882352) internal successors, (13977), 17 states have internal predecessors, (13977), 0 states have call successors, (0), 0 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 11:54:47,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:54:47,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:47,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-10 11:54:48,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:54:48,000 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:54:48,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:54:48,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1725761492, now seen corresponding path program 17 times [2023-11-10 11:54:48,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:54:48,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793903345] [2023-11-10 11:54:48,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:54:48,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:54:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:54:48,349 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 11:54:48,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:54:48,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793903345] [2023-11-10 11:54:48,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793903345] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:54:48,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520412431] [2023-11-10 11:54:48,350 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-10 11:54:48,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:54:48,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:54:48,354 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:54:48,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-10 11:54:49,107 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-10 11:54:49,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:54:49,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 95 conjunts are in the unsatisfiable core [2023-11-10 11:54:49,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:54:49,502 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:54:49,502 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 11:54:49,523 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:49,524 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 11:54:49,568 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:49,568 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 11:54:49,598 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:49,599 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 11:54:49,632 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:49,632 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 11:54:49,665 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:49,665 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 11:54:49,696 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:49,697 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 11:54:49,731 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:49,731 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 11:54:49,761 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:49,762 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 11:54:49,806 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:49,806 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 11:54:49,837 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:49,837 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 11:54:49,868 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:49,868 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 11:54:49,900 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:49,900 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 11:54:49,932 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:49,932 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 11:54:49,968 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:54:49,968 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 11:54:50,002 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:50,002 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 11:54:50,053 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:50,053 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 11:54:50,086 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:50,086 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 11:54:50,123 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:50,123 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 11:54:50,157 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:54:50,157 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 11:54:50,193 INFO L322 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2023-11-10 11:54:50,193 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 11:54:50,545 INFO L322 Elim1Store]: treesize reduction 68, result has 39.3 percent of original size [2023-11-10 11:54:50,545 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 39 treesize of output 66 [2023-11-10 11:54:51,046 INFO L322 Elim1Store]: treesize reduction 60, result has 67.7 percent of original size [2023-11-10 11:54:51,047 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 167 [2023-11-10 11:55:19,084 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 11:55:19,171 INFO L322 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-11-10 11:55:19,171 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2023-11-10 11:55:19,224 INFO L322 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-10 11:55:19,224 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 30 [2023-11-10 11:55:19,351 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 11:55:19,491 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 11:55:20,077 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 11:55:20,093 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 11:55:20,133 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 11:55:20,133 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:55:20,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520412431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:55:20,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:55:20,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [6] total 28 [2023-11-10 11:55:20,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464446881] [2023-11-10 11:55:20,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:55:20,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-10 11:55:20,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:55:20,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-10 11:55:20,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2023-11-10 11:55:20,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 764 out of 921 [2023-11-10 11:55:20,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 994 places, 957 transitions, 3330 flow. Second operand has 24 states, 24 states have (on average 768.125) internal successors, (18435), 24 states have internal predecessors, (18435), 0 states have call successors, (0), 0 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 11:55:20,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:55:20,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 764 of 921 [2023-11-10 11:55:20,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:55:23,227 INFO L124 PetriNetUnfolderBase]: 875/6538 cut-off events. [2023-11-10 11:55:23,227 INFO L125 PetriNetUnfolderBase]: For 16496/17124 co-relation queries the response was YES. [2023-11-10 11:55:23,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12631 conditions, 6538 events. 875/6538 cut-off events. For 16496/17124 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 49632 event pairs, 256 based on Foata normal form. 45/6279 useless extension candidates. Maximal degree in co-relation 12562. Up to 558 conditions per place. [2023-11-10 11:55:23,296 INFO L140 encePairwiseOnDemand]: 888/921 looper letters, 156 selfloop transitions, 37 changer transitions 105/1047 dead transitions. [2023-11-10 11:55:23,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1011 places, 1047 transitions, 4778 flow [2023-11-10 11:55:23,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-10 11:55:23,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-10 11:55:23,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 23158 transitions. [2023-11-10 11:55:23,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8381469417300036 [2023-11-10 11:55:23,307 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 23158 transitions. [2023-11-10 11:55:23,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 23158 transitions. [2023-11-10 11:55:23,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:55:23,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 23158 transitions. [2023-11-10 11:55:23,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 771.9333333333333) internal successors, (23158), 30 states have internal predecessors, (23158), 0 states have call successors, (0), 0 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 11:55:23,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 921.0) internal successors, (28551), 31 states have internal predecessors, (28551), 0 states have call successors, (0), 0 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 11:55:23,343 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 921.0) internal successors, (28551), 31 states have internal predecessors, (28551), 0 states have call successors, (0), 0 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 11:55:23,343 INFO L175 Difference]: Start difference. First operand has 994 places, 957 transitions, 3330 flow. Second operand 30 states and 23158 transitions. [2023-11-10 11:55:23,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1011 places, 1047 transitions, 4778 flow [2023-11-10 11:55:23,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 975 places, 1047 transitions, 4318 flow, removed 158 selfloop flow, removed 36 redundant places. [2023-11-10 11:55:23,391 INFO L231 Difference]: Finished difference. Result has 990 places, 931 transitions, 2874 flow [2023-11-10 11:55:23,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=3076, PETRI_DIFFERENCE_MINUEND_PLACES=946, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=920, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=2874, PETRI_PLACES=990, PETRI_TRANSITIONS=931} [2023-11-10 11:55:23,393 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 120 predicate places. [2023-11-10 11:55:23,393 INFO L495 AbstractCegarLoop]: Abstraction has has 990 places, 931 transitions, 2874 flow [2023-11-10 11:55:23,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 768.125) internal successors, (18435), 24 states have internal predecessors, (18435), 0 states have call successors, (0), 0 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 11:55:23,394 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:55:23,395 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:55:23,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-10 11:55:23,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:55:23,596 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:55:23,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:55:23,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1960582530, now seen corresponding path program 18 times [2023-11-10 11:55:23,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:55:23,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120036194] [2023-11-10 11:55:23,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:55:23,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:55:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:55:23,902 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 11:55:23,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:55:23,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120036194] [2023-11-10 11:55:23,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120036194] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:55:23,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508208671] [2023-11-10 11:55:23,903 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-10 11:55:23,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:55:23,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:55:23,904 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:55:23,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-10 11:55:24,618 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2023-11-10 11:55:24,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:55:24,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 98 conjunts are in the unsatisfiable core [2023-11-10 11:55:24,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:55:24,874 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:24,874 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 11:55:24,924 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:24,925 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:55:24,963 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:24,963 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:55:25,001 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:25,001 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 11:55:25,038 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:25,038 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 11:55:25,074 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:25,075 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 11:55:25,105 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:25,106 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:55:25,147 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:25,148 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 11:55:25,180 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:25,181 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 11:55:25,214 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:25,215 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 11:55:25,244 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:25,245 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 11:55:25,276 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:25,277 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 11:55:25,333 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:25,333 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 11:55:25,373 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:25,374 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 11:55:25,416 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:25,417 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 11:55:25,460 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:25,461 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 11:55:25,504 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:25,505 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 11:55:25,546 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:25,546 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 11:55:25,576 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:25,577 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 11:55:25,629 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:25,629 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 11:55:25,663 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:25,663 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 11:55:25,854 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:25,854 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 11:55:25,960 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:25,961 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 28 treesize of output 33 [2023-11-10 11:55:26,330 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:26,331 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 23 treesize of output 22 [2023-11-10 11:55:26,418 INFO L322 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-11-10 11:55:26,419 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2023-11-10 11:55:26,470 INFO L322 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-10 11:55:26,471 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 30 [2023-11-10 11:55:26,583 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 11:55:26,750 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 11:55:27,478 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 11:55:27,495 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 11:55:27,534 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 11:55:27,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:55:27,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508208671] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:55:27,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:55:27,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2023-11-10 11:55:27,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917962660] [2023-11-10 11:55:27,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:55:27,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-10 11:55:27,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:55:27,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-10 11:55:27,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2023-11-10 11:55:27,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 764 out of 921 [2023-11-10 11:55:27,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 990 places, 931 transitions, 2874 flow. Second operand has 23 states, 23 states have (on average 768.304347826087) internal successors, (17671), 23 states have internal predecessors, (17671), 0 states have call successors, (0), 0 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 11:55:27,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:55:27,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 764 of 921 [2023-11-10 11:55:27,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:55:29,907 INFO L124 PetriNetUnfolderBase]: 585/4591 cut-off events. [2023-11-10 11:55:29,907 INFO L125 PetriNetUnfolderBase]: For 12054/12539 co-relation queries the response was YES. [2023-11-10 11:55:29,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9063 conditions, 4591 events. 585/4591 cut-off events. For 12054/12539 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 30218 event pairs, 174 based on Foata normal form. 31/4446 useless extension candidates. Maximal degree in co-relation 8998. Up to 387 conditions per place. [2023-11-10 11:55:29,936 INFO L140 encePairwiseOnDemand]: 886/921 looper letters, 144 selfloop transitions, 50 changer transitions 78/1021 dead transitions. [2023-11-10 11:55:29,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1004 places, 1021 transitions, 4371 flow [2023-11-10 11:55:29,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-10 11:55:29,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2023-11-10 11:55:29,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 25443 transitions. [2023-11-10 11:55:29,947 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8371335504885994 [2023-11-10 11:55:29,948 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 25443 transitions. [2023-11-10 11:55:29,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 25443 transitions. [2023-11-10 11:55:29,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:55:29,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 25443 transitions. [2023-11-10 11:55:29,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 771.0) internal successors, (25443), 33 states have internal predecessors, (25443), 0 states have call successors, (0), 0 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 11:55:29,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 921.0) internal successors, (31314), 34 states have internal predecessors, (31314), 0 states have call successors, (0), 0 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 11:55:29,990 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 921.0) internal successors, (31314), 34 states have internal predecessors, (31314), 0 states have call successors, (0), 0 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 11:55:29,990 INFO L175 Difference]: Start difference. First operand has 990 places, 931 transitions, 2874 flow. Second operand 33 states and 25443 transitions. [2023-11-10 11:55:29,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1004 places, 1021 transitions, 4371 flow [2023-11-10 11:55:30,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 963 places, 1021 transitions, 3903 flow, removed 154 selfloop flow, removed 41 redundant places. [2023-11-10 11:55:30,023 INFO L231 Difference]: Finished difference. Result has 978 places, 918 transitions, 2673 flow [2023-11-10 11:55:30,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=2644, PETRI_DIFFERENCE_MINUEND_PLACES=931, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=931, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=881, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=2673, PETRI_PLACES=978, PETRI_TRANSITIONS=918} [2023-11-10 11:55:30,024 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 108 predicate places. [2023-11-10 11:55:30,024 INFO L495 AbstractCegarLoop]: Abstraction has has 978 places, 918 transitions, 2673 flow [2023-11-10 11:55:30,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 768.304347826087) internal successors, (17671), 23 states have internal predecessors, (17671), 0 states have call successors, (0), 0 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 11:55:30,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:55:30,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:55:30,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-10 11:55:30,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-10 11:55:30,227 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:55:30,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:55:30,228 INFO L85 PathProgramCache]: Analyzing trace with hash 350167268, now seen corresponding path program 19 times [2023-11-10 11:55:30,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:55:30,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326198428] [2023-11-10 11:55:30,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:55:30,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:55:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:55:30,575 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 11:55:30,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:55:30,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326198428] [2023-11-10 11:55:30,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326198428] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:55:30,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29432230] [2023-11-10 11:55:30,576 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-10 11:55:30,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:55:30,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:55:30,586 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:55:30,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-10 11:55:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:55:31,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 99 conjunts are in the unsatisfiable core [2023-11-10 11:55:31,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:55:31,539 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:55:31,539 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 11:55:31,557 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:31,558 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 11:55:31,593 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:31,594 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 11:55:31,624 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:31,624 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 11:55:31,655 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:31,655 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 11:55:31,684 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:31,684 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 11:55:31,720 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:31,721 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 11:55:31,761 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:31,762 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 11:55:31,800 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:31,800 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 11:55:31,831 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:31,831 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 11:55:31,864 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:31,864 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 11:55:31,909 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:31,909 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:55:31,946 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:31,947 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 11:55:31,981 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:31,982 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 11:55:32,012 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:32,013 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 11:55:32,043 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:32,043 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 11:55:32,091 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:32,092 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 11:55:32,125 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:32,126 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 11:55:32,156 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:32,156 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 11:55:32,187 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:32,187 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 11:55:32,229 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:32,229 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 11:55:32,384 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:55:32,384 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 11:55:32,500 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:32,501 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 11:55:32,921 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 11:55:33,005 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:33,006 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 28 [2023-11-10 11:55:33,033 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:55:33,034 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 11:55:33,132 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 11:55:33,281 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 11:55:33,868 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 11:55:33,883 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 11:55:33,920 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 11:55:33,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:55:33,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29432230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:55:33,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:55:33,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2023-11-10 11:55:33,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786968803] [2023-11-10 11:55:33,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:55:33,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-10 11:55:33,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:55:33,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-10 11:55:33,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2023-11-10 11:55:33,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 764 out of 921 [2023-11-10 11:55:33,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 978 places, 918 transitions, 2673 flow. Second operand has 22 states, 22 states have (on average 768.5) internal successors, (16907), 22 states have internal predecessors, (16907), 0 states have call successors, (0), 0 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 11:55:33,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:55:33,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 764 of 921 [2023-11-10 11:55:33,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:55:35,969 INFO L124 PetriNetUnfolderBase]: 521/4543 cut-off events. [2023-11-10 11:55:35,969 INFO L125 PetriNetUnfolderBase]: For 9814/10275 co-relation queries the response was YES. [2023-11-10 11:55:36,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8268 conditions, 4543 events. 521/4543 cut-off events. For 9814/10275 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 30211 event pairs, 193 based on Foata normal form. 33/4398 useless extension candidates. Maximal degree in co-relation 8212. Up to 444 conditions per place. [2023-11-10 11:55:36,011 INFO L140 encePairwiseOnDemand]: 889/921 looper letters, 132 selfloop transitions, 27 changer transitions 69/977 dead transitions. [2023-11-10 11:55:36,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 993 places, 977 transitions, 3729 flow [2023-11-10 11:55:36,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-10 11:55:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-11-10 11:55:36,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 20829 transitions. [2023-11-10 11:55:36,020 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8376161177464109 [2023-11-10 11:55:36,021 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 20829 transitions. [2023-11-10 11:55:36,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 20829 transitions. [2023-11-10 11:55:36,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:55:36,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 20829 transitions. [2023-11-10 11:55:36,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 771.4444444444445) internal successors, (20829), 27 states have internal predecessors, (20829), 0 states have call successors, (0), 0 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 11:55:36,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 921.0) internal successors, (25788), 28 states have internal predecessors, (25788), 0 states have call successors, (0), 0 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 11:55:36,053 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 921.0) internal successors, (25788), 28 states have internal predecessors, (25788), 0 states have call successors, (0), 0 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 11:55:36,053 INFO L175 Difference]: Start difference. First operand has 978 places, 918 transitions, 2673 flow. Second operand 27 states and 20829 transitions. [2023-11-10 11:55:36,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 993 places, 977 transitions, 3729 flow [2023-11-10 11:55:36,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 951 places, 977 transitions, 3374 flow, removed 110 selfloop flow, removed 42 redundant places. [2023-11-10 11:55:36,083 INFO L231 Difference]: Finished difference. Result has 963 places, 898 transitions, 2383 flow [2023-11-10 11:55:36,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=2468, PETRI_DIFFERENCE_MINUEND_PLACES=925, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=918, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=891, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=2383, PETRI_PLACES=963, PETRI_TRANSITIONS=898} [2023-11-10 11:55:36,084 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 93 predicate places. [2023-11-10 11:55:36,084 INFO L495 AbstractCegarLoop]: Abstraction has has 963 places, 898 transitions, 2383 flow [2023-11-10 11:55:36,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 768.5) internal successors, (16907), 22 states have internal predecessors, (16907), 0 states have call successors, (0), 0 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 11:55:36,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:55:36,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:55:36,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-10 11:55:36,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:55:36,287 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:55:36,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:55:36,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1666072318, now seen corresponding path program 20 times [2023-11-10 11:55:36,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:55:36,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989307530] [2023-11-10 11:55:36,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:55:36,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:55:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:55:36,596 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 11:55:36,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:55:36,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989307530] [2023-11-10 11:55:36,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989307530] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:55:36,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413069052] [2023-11-10 11:55:36,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-10 11:55:36,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:55:36,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:55:36,598 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:55:36,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-10 11:55:37,299 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-10 11:55:37,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:55:37,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 96 conjunts are in the unsatisfiable core [2023-11-10 11:55:37,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:55:37,563 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:55:37,563 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 11:55:37,586 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:37,587 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 11:55:37,629 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:37,629 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 11:55:37,662 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:37,662 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 11:55:37,692 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:37,692 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 11:55:37,727 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:37,727 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 11:55:37,760 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:37,760 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 11:55:37,799 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:37,800 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 11:55:37,831 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:37,831 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 11:55:37,863 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:37,863 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 11:55:37,896 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:37,897 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 11:55:37,929 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:37,929 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 11:55:37,965 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:37,965 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 11:55:37,997 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:37,998 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 11:55:38,028 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:38,028 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 11:55:38,062 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:38,062 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 11:55:38,103 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:38,103 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 11:55:38,140 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:38,140 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-10 11:55:38,170 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:38,171 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 11:55:38,209 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:38,209 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 11:55:38,247 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:38,248 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 11:55:38,420 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:55:38,420 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 11:55:38,545 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:38,545 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 11:55:39,020 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 11:55:39,108 INFO L322 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-11-10 11:55:39,108 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2023-11-10 11:55:39,155 INFO L322 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-10 11:55:39,156 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 30 [2023-11-10 11:55:39,262 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 11:55:39,394 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 11:55:39,999 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 11:55:40,015 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 11:55:40,056 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 11:55:40,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:55:40,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413069052] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:55:40,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:55:40,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2023-11-10 11:55:40,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147476278] [2023-11-10 11:55:40,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:55:40,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-10 11:55:40,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:55:40,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-10 11:55:40,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2023-11-10 11:55:40,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 764 out of 921 [2023-11-10 11:55:40,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 963 places, 898 transitions, 2383 flow. Second operand has 22 states, 22 states have (on average 768.5) internal successors, (16907), 22 states have internal predecessors, (16907), 0 states have call successors, (0), 0 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 11:55:40,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:55:40,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 764 of 921 [2023-11-10 11:55:40,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:55:41,677 INFO L124 PetriNetUnfolderBase]: 420/3412 cut-off events. [2023-11-10 11:55:41,677 INFO L125 PetriNetUnfolderBase]: For 8625/9058 co-relation queries the response was YES. [2023-11-10 11:55:41,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6612 conditions, 3412 events. 420/3412 cut-off events. For 8625/9058 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 19228 event pairs, 155 based on Foata normal form. 33/3322 useless extension candidates. Maximal degree in co-relation 6562. Up to 349 conditions per place. [2023-11-10 11:55:41,707 INFO L140 encePairwiseOnDemand]: 890/921 looper letters, 131 selfloop transitions, 37 changer transitions 48/965 dead transitions. [2023-11-10 11:55:41,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 973 places, 965 transitions, 3516 flow [2023-11-10 11:55:41,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-10 11:55:41,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-11-10 11:55:41,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 21595 transitions. [2023-11-10 11:55:41,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8374049945711184 [2023-11-10 11:55:41,717 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 21595 transitions. [2023-11-10 11:55:41,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 21595 transitions. [2023-11-10 11:55:41,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:55:41,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 21595 transitions. [2023-11-10 11:55:41,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 771.25) internal successors, (21595), 28 states have internal predecessors, (21595), 0 states have call successors, (0), 0 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 11:55:41,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 921.0) internal successors, (26709), 29 states have internal predecessors, (26709), 0 states have call successors, (0), 0 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 11:55:41,748 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 921.0) internal successors, (26709), 29 states have internal predecessors, (26709), 0 states have call successors, (0), 0 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 11:55:41,748 INFO L175 Difference]: Start difference. First operand has 963 places, 898 transitions, 2383 flow. Second operand 28 states and 21595 transitions. [2023-11-10 11:55:41,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 973 places, 965 transitions, 3516 flow [2023-11-10 11:55:41,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 934 places, 965 transitions, 3135 flow, removed 135 selfloop flow, removed 39 redundant places. [2023-11-10 11:55:41,772 INFO L231 Difference]: Finished difference. Result has 950 places, 901 transitions, 2394 flow [2023-11-10 11:55:41,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=2197, PETRI_DIFFERENCE_MINUEND_PLACES=907, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=898, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=863, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=2394, PETRI_PLACES=950, PETRI_TRANSITIONS=901} [2023-11-10 11:55:41,773 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 80 predicate places. [2023-11-10 11:55:41,773 INFO L495 AbstractCegarLoop]: Abstraction has has 950 places, 901 transitions, 2394 flow [2023-11-10 11:55:41,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 768.5) internal successors, (16907), 22 states have internal predecessors, (16907), 0 states have call successors, (0), 0 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 11:55:41,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:55:41,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:55:41,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-10 11:55:41,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:55:41,976 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:55:41,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:55:41,976 INFO L85 PathProgramCache]: Analyzing trace with hash 801300738, now seen corresponding path program 21 times [2023-11-10 11:55:41,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:55:41,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125052367] [2023-11-10 11:55:41,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:55:41,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:55:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:55:42,348 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 11:55:42,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:55:42,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125052367] [2023-11-10 11:55:42,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125052367] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:55:42,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975339849] [2023-11-10 11:55:42,348 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-10 11:55:42,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:55:42,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:55:42,351 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:55:42,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-10 11:55:43,057 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-10 11:55:43,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:55:43,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 103 conjunts are in the unsatisfiable core [2023-11-10 11:55:43,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:55:43,307 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:55:43,307 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 11:55:43,328 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:43,329 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 11:55:43,371 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:43,372 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 11:55:43,405 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:43,405 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 11:55:43,436 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:43,436 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 11:55:43,468 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:43,468 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 11:55:43,500 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:43,501 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 11:55:43,530 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:43,530 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 11:55:43,562 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:43,563 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 11:55:43,605 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:43,605 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 11:55:43,646 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:43,647 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 11:55:43,688 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:43,688 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 11:55:43,732 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:43,733 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 11:55:43,775 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:43,776 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 11:55:43,825 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:43,825 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 11:55:43,870 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:43,870 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 11:55:43,908 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:43,908 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 11:55:43,940 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-10 11:55:43,941 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 11:55:43,980 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:43,980 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 11:55:44,019 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:44,020 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 11:55:44,057 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:44,057 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 11:55:44,206 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-10 11:55:44,206 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 25 [2023-11-10 11:55:44,349 INFO L322 Elim1Store]: treesize reduction 32, result has 45.8 percent of original size [2023-11-10 11:55:44,350 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 40 [2023-11-10 11:55:44,877 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-11-10 11:55:44,963 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-10 11:55:44,964 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 11:55:44,981 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:55:44,982 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 11:55:45,081 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 11:55:45,205 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 11:55:45,799 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 11:55:45,817 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 11:55:45,854 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 11:55:45,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:55:45,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975339849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:55:45,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:55:45,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [6] total 25 [2023-11-10 11:55:45,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574135871] [2023-11-10 11:55:45,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:55:45,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-10 11:55:45,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:55:45,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-10 11:55:45,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2023-11-10 11:55:45,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 764 out of 921 [2023-11-10 11:55:45,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 950 places, 901 transitions, 2394 flow. Second operand has 21 states, 21 states have (on average 768.7142857142857) internal successors, (16143), 21 states have internal predecessors, (16143), 0 states have call successors, (0), 0 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 11:55:45,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:55:45,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 764 of 921 [2023-11-10 11:55:45,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:55:47,376 INFO L124 PetriNetUnfolderBase]: 394/3428 cut-off events. [2023-11-10 11:55:47,376 INFO L125 PetriNetUnfolderBase]: For 7154/7745 co-relation queries the response was YES. [2023-11-10 11:55:47,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6197 conditions, 3428 events. 394/3428 cut-off events. For 7154/7745 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 19581 event pairs, 152 based on Foata normal form. 50/3355 useless extension candidates. Maximal degree in co-relation 6152. Up to 300 conditions per place. [2023-11-10 11:55:47,400 INFO L140 encePairwiseOnDemand]: 890/921 looper letters, 119 selfloop transitions, 25 changer transitions 65/958 dead transitions. [2023-11-10 11:55:47,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 966 places, 958 transitions, 3439 flow [2023-11-10 11:55:47,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-10 11:55:47,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-11-10 11:55:47,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 19293 transitions. [2023-11-10 11:55:47,408 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.837915309446254 [2023-11-10 11:55:47,408 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 19293 transitions. [2023-11-10 11:55:47,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 19293 transitions. [2023-11-10 11:55:47,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:55:47,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 19293 transitions. [2023-11-10 11:55:47,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 771.72) internal successors, (19293), 25 states have internal predecessors, (19293), 0 states have call successors, (0), 0 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 11:55:47,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 921.0) internal successors, (23946), 26 states have internal predecessors, (23946), 0 states have call successors, (0), 0 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 11:55:47,434 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 921.0) internal successors, (23946), 26 states have internal predecessors, (23946), 0 states have call successors, (0), 0 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 11:55:47,434 INFO L175 Difference]: Start difference. First operand has 950 places, 901 transitions, 2394 flow. Second operand 25 states and 19293 transitions. [2023-11-10 11:55:47,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 966 places, 958 transitions, 3439 flow [2023-11-10 11:55:47,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 934 places, 958 transitions, 3069 flow, removed 135 selfloop flow, removed 32 redundant places. [2023-11-10 11:55:47,456 INFO L231 Difference]: Finished difference. Result has 948 places, 886 transitions, 2190 flow [2023-11-10 11:55:47,457 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=2210, PETRI_DIFFERENCE_MINUEND_PLACES=910, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=901, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=876, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=2190, PETRI_PLACES=948, PETRI_TRANSITIONS=886} [2023-11-10 11:55:47,457 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 78 predicate places. [2023-11-10 11:55:47,457 INFO L495 AbstractCegarLoop]: Abstraction has has 948 places, 886 transitions, 2190 flow [2023-11-10 11:55:47,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 768.7142857142857) internal successors, (16143), 21 states have internal predecessors, (16143), 0 states have call successors, (0), 0 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 11:55:47,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:55:47,459 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:55:47,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-10 11:55:47,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-10 11:55:47,660 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-10 11:55:47,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:55:47,661 INFO L85 PathProgramCache]: Analyzing trace with hash 599024113, now seen corresponding path program 1 times [2023-11-10 11:55:47,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:55:47,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573549644] [2023-11-10 11:55:47,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:55:47,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:55:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:55:48,055 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 11:55:48,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:55:48,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573549644] [2023-11-10 11:55:48,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573549644] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:55:48,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987420984] [2023-11-10 11:55:48,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:55:48,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:55:48,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:55:48,057 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:55:48,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-10 11:55:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:55:48,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 1283 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-10 11:55:48,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:55:49,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-10 11:55:49,509 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 11:55:49,536 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 11:55:49,565 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 11:55:49,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:55:49,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987420984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:55:49,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:55:49,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2023-11-10 11:55:49,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589643223] [2023-11-10 11:55:49,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:55:49,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:55:49,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:55:49,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:55:49,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-11-10 11:55:49,571 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 830 out of 921 [2023-11-10 11:55:49,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 948 places, 886 transitions, 2190 flow. Second operand has 12 states, 12 states have (on average 833.75) internal successors, (10005), 12 states have internal predecessors, (10005), 0 states have call successors, (0), 0 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 11:55:49,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:55:49,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 830 of 921 [2023-11-10 11:55:49,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:55:50,223 INFO L124 PetriNetUnfolderBase]: 218/2172 cut-off events. [2023-11-10 11:55:50,223 INFO L125 PetriNetUnfolderBase]: For 3342/3872 co-relation queries the response was YES. [2023-11-10 11:55:50,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3619 conditions, 2172 events. 218/2172 cut-off events. For 3342/3872 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 9295 event pairs, 36 based on Foata normal form. 16/2109 useless extension candidates. Maximal degree in co-relation 3575. Up to 110 conditions per place. [2023-11-10 11:55:50,237 INFO L140 encePairwiseOnDemand]: 904/921 looper letters, 0 selfloop transitions, 0 changer transitions 923/923 dead transitions. [2023-11-10 11:55:50,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 923 transitions, 2671 flow [2023-11-10 11:55:50,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-10 11:55:50,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-10 11:55:50,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 15875 transitions. [2023-11-10 11:55:50,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9071946968398195 [2023-11-10 11:55:50,244 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 15875 transitions. [2023-11-10 11:55:50,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 15875 transitions. [2023-11-10 11:55:50,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:55:50,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 15875 transitions. [2023-11-10 11:55:50,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 835.5263157894736) internal successors, (15875), 19 states have internal predecessors, (15875), 0 states have call successors, (0), 0 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 11:55:50,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 921.0) internal successors, (18420), 20 states have internal predecessors, (18420), 0 states have call successors, (0), 0 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 11:55:50,266 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 921.0) internal successors, (18420), 20 states have internal predecessors, (18420), 0 states have call successors, (0), 0 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 11:55:50,266 INFO L175 Difference]: Start difference. First operand has 948 places, 886 transitions, 2190 flow. Second operand 19 states and 15875 transitions. [2023-11-10 11:55:50,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 923 transitions, 2671 flow [2023-11-10 11:55:50,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 903 places, 923 transitions, 2404 flow, removed 74 selfloop flow, removed 45 redundant places. [2023-11-10 11:55:50,279 INFO L231 Difference]: Finished difference. Result has 903 places, 0 transitions, 0 flow [2023-11-10 11:55:50,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=921, PETRI_DIFFERENCE_MINUEND_FLOW=1981, PETRI_DIFFERENCE_MINUEND_PLACES=885, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=884, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=884, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=0, PETRI_PLACES=903, PETRI_TRANSITIONS=0} [2023-11-10 11:55:50,280 INFO L281 CegarLoopForPetriNet]: 870 programPoint places, 33 predicate places. [2023-11-10 11:55:50,280 INFO L495 AbstractCegarLoop]: Abstraction has has 903 places, 0 transitions, 0 flow [2023-11-10 11:55:50,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 833.75) internal successors, (10005), 12 states have internal predecessors, (10005), 0 states have call successors, (0), 0 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 11:55:50,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-10 11:55:50,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-11-10 11:55:50,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-10 11:55:50,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-10 11:55:50,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-11-10 11:55:50,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-10 11:55:50,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-10 11:55:50,485 INFO L445 BasicCegarLoop]: Path program histogram: [21, 8, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:55:50,489 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 11:55:50,489 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 11:55:50,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:55:50 BasicIcfg [2023-11-10 11:55:50,493 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 11:55:50,493 INFO L158 Benchmark]: Toolchain (without parser) took 243393.92ms. Allocated memory was 234.9MB in the beginning and 6.7GB in the end (delta: 6.5GB). Free memory was 175.8MB in the beginning and 3.5GB in the end (delta: -3.4GB). Peak memory consumption was 3.1GB. Max. memory is 8.0GB. [2023-11-10 11:55:50,493 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 184.5MB. Free memory was 138.3MB in the beginning and 138.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:55:50,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 7728.34ms. Allocated memory was 234.9MB in the beginning and 282.1MB in the end (delta: 47.2MB). Free memory was 175.3MB in the beginning and 210.1MB in the end (delta: -34.8MB). Peak memory consumption was 123.1MB. Max. memory is 8.0GB. [2023-11-10 11:55:50,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 195.36ms. Allocated memory is still 282.1MB. Free memory was 210.1MB in the beginning and 198.1MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-11-10 11:55:50,494 INFO L158 Benchmark]: Boogie Preprocessor took 111.67ms. Allocated memory is still 282.1MB. Free memory was 198.1MB in the beginning and 191.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-11-10 11:55:50,494 INFO L158 Benchmark]: RCFGBuilder took 1362.39ms. Allocated memory is still 282.1MB. Free memory was 191.8MB in the beginning and 211.1MB in the end (delta: -19.3MB). Peak memory consumption was 84.9MB. Max. memory is 8.0GB. [2023-11-10 11:55:50,494 INFO L158 Benchmark]: TraceAbstraction took 233989.23ms. Allocated memory was 282.1MB in the beginning and 6.7GB in the end (delta: 6.5GB). Free memory was 210.4MB in the beginning and 3.5GB in the end (delta: -3.3GB). Peak memory consumption was 3.1GB. Max. memory is 8.0GB. [2023-11-10 11:55:50,495 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 184.5MB. Free memory was 138.3MB in the beginning and 138.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 7728.34ms. Allocated memory was 234.9MB in the beginning and 282.1MB in the end (delta: 47.2MB). Free memory was 175.3MB in the beginning and 210.1MB in the end (delta: -34.8MB). Peak memory consumption was 123.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 195.36ms. Allocated memory is still 282.1MB. Free memory was 210.1MB in the beginning and 198.1MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 111.67ms. Allocated memory is still 282.1MB. Free memory was 198.1MB in the beginning and 191.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1362.39ms. Allocated memory is still 282.1MB. Free memory was 191.8MB in the beginning and 211.1MB in the end (delta: -19.3MB). Peak memory consumption was 84.9MB. Max. memory is 8.0GB. * TraceAbstraction took 233989.23ms. Allocated memory was 282.1MB in the beginning and 6.7GB in the end (delta: 6.5GB). Free memory was 210.4MB in the beginning and 3.5GB in the end (delta: -3.3GB). Peak memory consumption was 3.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 5814]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 174]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 174]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 1103 locations, 5 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: 233.8s, OverallIterations: 36, TraceHistogramMax: 1, PathProgramHistogramMax: 21, EmptinessCheckTime: 0.0s, AutomataDifference: 112.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6980 SdHoareTripleChecker+Valid, 14.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6980 mSDsluCounter, 17224 SdHoareTripleChecker+Invalid, 11.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14645 mSDsCounter, 615 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27480 IncrementalHoareTripleChecker+Invalid, 28095 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 615 mSolverCounterUnsat, 2579 mSDtfsCounter, 27480 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13480 GetRequests, 12283 SyntacticMatches, 0 SemanticMatches, 1197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7385 ImplicationChecksByTransitivity, 14.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7212occurred in iteration=14, InterpolantAutomatonStates: 804, 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: 2.4s SsaConstructionTime, 8.0s SatisfiabilityAnalysisTime, 89.6s InterpolantComputationTime, 25777 NumberOfCodeBlocks, 25657 NumberOfCodeBlocksAsserted, 78 NumberOfCheckSat, 25707 ConstructedInterpolants, 35 QuantifiedInterpolants, 142699 SizeOfPredicates, 673 NumberOfNonLiveVariables, 40077 ConjunctsInSsa, 1363 ConjunctsInUnsatCore, 70 InterpolantComputations, 36 PerfectInterpolantSequences, 34/68 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-10 11:55:50,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...