/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:52:31,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:52:31,787 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-10 11:52:31,811 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:52:31,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:52:31,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:52:31,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:52:31,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:52:31,814 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:52:31,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:52:31,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:52:31,817 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:52:31,818 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:52:31,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:52:31,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:52:31,819 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:52:31,820 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:52:31,820 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:52:31,820 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:52:31,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:52:31,820 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:52:31,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:52:31,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:52:31,821 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:52:31,821 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:52:31,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:52:31,821 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:52:31,822 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:52:31,822 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:52:31,822 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:52:31,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:52:31,823 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:52:31,823 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:52:31,823 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:52:31,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:52:31,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:52:31,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:52:31,964 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:52:31,965 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:52:31,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2023-11-10 11:52:32,871 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:52:33,189 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:52:33,189 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2023-11-10 11:52:33,225 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac05f0a93/6e3dc78ce3e543788dd705709d5b5e3c/FLAG59e1bda3c [2023-11-10 11:52:33,236 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac05f0a93/6e3dc78ce3e543788dd705709d5b5e3c [2023-11-10 11:52:33,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:52:33,241 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:52:33,242 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:52:33,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:52:33,245 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:52:33,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:52:33" (1/1) ... [2023-11-10 11:52:33,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e084b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:33, skipping insertion in model container [2023-11-10 11:52:33,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:52:33" (1/1) ... [2023-11-10 11:52:33,321 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:52:33,607 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i[5469,5482] [2023-11-10 11:52:36,625 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-10 11:52:36,981 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:52:36,981 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:52:37,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:52:37,040 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:52:37,060 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i[5469,5482] [2023-11-10 11:52:37,133 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 11:52:37,135 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 11:52:37,135 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 11:52:37,135 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 11:52:37,197 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-10 11:52:37,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-10 11:52:37,244 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:52:37,244 WARN L1577 CHandler]: Possible shadowing of function iminor [2023-11-10 11:52:37,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:52:37,728 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:52:37,728 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:52:37,728 WARN L672 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:52:37,728 WARN L672 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:52:37,728 WARN L672 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:52:37,728 WARN L672 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:52:37,728 WARN L672 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:52:37,733 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:52:37,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:37 WrapperNode [2023-11-10 11:52:37,734 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:52:37,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:52:37,735 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:52:37,735 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:52:37,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:37" (1/1) ... [2023-11-10 11:52:37,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:37" (1/1) ... [2023-11-10 11:52:37,904 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 49, statements flattened = 640 [2023-11-10 11:52:37,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:52:37,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:52:37,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:52:37,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:52:37,912 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:37" (1/1) ... [2023-11-10 11:52:37,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:37" (1/1) ... [2023-11-10 11:52:37,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:37" (1/1) ... [2023-11-10 11:52:37,921 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:37" (1/1) ... [2023-11-10 11:52:37,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:37" (1/1) ... [2023-11-10 11:52:37,949 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:37" (1/1) ... [2023-11-10 11:52:37,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:37" (1/1) ... [2023-11-10 11:52:37,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:37" (1/1) ... [2023-11-10 11:52:37,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:52:37,983 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:52:37,983 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:52:37,983 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:52:37,984 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:37" (1/1) ... [2023-11-10 11:52:37,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:52:38,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:38,013 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 11:52:38,034 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 11:52:38,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-10 11:52:38,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-10 11:52:38,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:52:38,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-10 11:52:38,057 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-11-10 11:52:38,057 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-11-10 11:52:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:52:38,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:52:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2023-11-10 11:52:38,058 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2023-11-10 11:52:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-10 11:52:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:52:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-10 11:52:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:52:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:52:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-10 11:52:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:52:38,060 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 11:52:38,418 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:52:38,419 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:52:38,854 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:52:38,864 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:52:38,864 INFO L302 CfgBuilder]: Removed 21 assume(true) statements. [2023-11-10 11:52:38,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:52:38 BoogieIcfgContainer [2023-11-10 11:52:38,868 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:52:38,870 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:52:38,870 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:52:38,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:52:38,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:52:33" (1/3) ... [2023-11-10 11:52:38,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c7eed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:52:38, skipping insertion in model container [2023-11-10 11:52:38,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:52:37" (2/3) ... [2023-11-10 11:52:38,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c7eed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:52:38, skipping insertion in model container [2023-11-10 11:52:38,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:52:38" (3/3) ... [2023-11-10 11:52:38,873 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2023-11-10 11:52:38,884 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:52:38,884 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-10 11:52:38,884 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:52:38,944 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-10 11:52:38,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 748 places, 784 transitions, 1582 flow [2023-11-10 11:52:39,186 INFO L124 PetriNetUnfolderBase]: 43/782 cut-off events. [2023-11-10 11:52:39,186 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-10 11:52:39,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 782 events. 43/782 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 932 event pairs, 0 based on Foata normal form. 0/736 useless extension candidates. Maximal degree in co-relation 730. Up to 9 conditions per place. [2023-11-10 11:52:39,193 INFO L82 GeneralOperation]: Start removeDead. Operand has 748 places, 784 transitions, 1582 flow [2023-11-10 11:52:39,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 737 places, 773 transitions, 1555 flow [2023-11-10 11:52:39,212 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:52:39,217 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;@7596da70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:52:39,218 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-10 11:52:39,261 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:52:39,261 INFO L124 PetriNetUnfolderBase]: 6/334 cut-off events. [2023-11-10 11:52:39,262 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:52:39,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:39,263 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] [2023-11-10 11:52:39,263 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:52:39,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:39,267 INFO L85 PathProgramCache]: Analyzing trace with hash -881091886, now seen corresponding path program 1 times [2023-11-10 11:52:39,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:39,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713038257] [2023-11-10 11:52:39,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:39,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:39,967 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 11:52:39,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:39,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713038257] [2023-11-10 11:52:39,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713038257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:39,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:52:39,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-10 11:52:39,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966735182] [2023-11-10 11:52:39,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:39,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-10 11:52:39,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:40,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-10 11:52:40,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-10 11:52:40,019 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 716 out of 784 [2023-11-10 11:52:40,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 737 places, 773 transitions, 1555 flow. Second operand has 9 states, 9 states have (on average 718.4444444444445) internal successors, (6466), 9 states have internal predecessors, (6466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:40,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:40,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 716 of 784 [2023-11-10 11:52:40,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:40,372 INFO L124 PetriNetUnfolderBase]: 17/741 cut-off events. [2023-11-10 11:52:40,373 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2023-11-10 11:52:40,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 788 conditions, 741 events. 17/741 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 848 event pairs, 0 based on Foata normal form. 17/737 useless extension candidates. Maximal degree in co-relation 736. Up to 12 conditions per place. [2023-11-10 11:52:40,377 INFO L140 encePairwiseOnDemand]: 741/784 looper letters, 21 selfloop transitions, 17 changer transitions 1/741 dead transitions. [2023-11-10 11:52:40,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 748 places, 741 transitions, 1567 flow [2023-11-10 11:52:40,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-10 11:52:40,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-10 11:52:40,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 12952 transitions. [2023-11-10 11:52:40,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9178004535147393 [2023-11-10 11:52:40,406 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 12952 transitions. [2023-11-10 11:52:40,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 12952 transitions. [2023-11-10 11:52:40,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:40,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 12952 transitions. [2023-11-10 11:52:40,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 719.5555555555555) internal successors, (12952), 18 states have internal predecessors, (12952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:40,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 784.0) internal successors, (14896), 19 states have internal predecessors, (14896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:40,463 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 784.0) internal successors, (14896), 19 states have internal predecessors, (14896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:40,464 INFO L175 Difference]: Start difference. First operand has 737 places, 773 transitions, 1555 flow. Second operand 18 states and 12952 transitions. [2023-11-10 11:52:40,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 748 places, 741 transitions, 1567 flow [2023-11-10 11:52:40,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 745 places, 741 transitions, 1562 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-10 11:52:40,484 INFO L231 Difference]: Finished difference. Result has 745 places, 740 transitions, 1518 flow [2023-11-10 11:52:40,486 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=1486, PETRI_DIFFERENCE_MINUEND_PLACES=728, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=741, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=724, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1518, PETRI_PLACES=745, PETRI_TRANSITIONS=740} [2023-11-10 11:52:40,488 INFO L281 CegarLoopForPetriNet]: 737 programPoint places, 8 predicate places. [2023-11-10 11:52:40,488 INFO L495 AbstractCegarLoop]: Abstraction has has 745 places, 740 transitions, 1518 flow [2023-11-10 11:52:40,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 718.4444444444445) internal successors, (6466), 9 states have internal predecessors, (6466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:40,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:40,491 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:52:40,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:52:40,492 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:52:40,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:40,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1374593488, now seen corresponding path program 1 times [2023-11-10 11:52:40,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:40,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453483994] [2023-11-10 11:52:40,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:40,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:40,901 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 11:52:40,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:40,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453483994] [2023-11-10 11:52:40,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453483994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:40,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:52:40,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-10 11:52:40,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241320263] [2023-11-10 11:52:40,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:40,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-10 11:52:40,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:40,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-10 11:52:40,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-10 11:52:40,907 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 726 out of 784 [2023-11-10 11:52:40,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 745 places, 740 transitions, 1518 flow. Second operand has 5 states, 5 states have (on average 727.8) internal successors, (3639), 5 states have internal predecessors, (3639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:40,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:40,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 726 of 784 [2023-11-10 11:52:40,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:41,079 INFO L124 PetriNetUnfolderBase]: 17/747 cut-off events. [2023-11-10 11:52:41,080 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2023-11-10 11:52:41,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 747 events. 17/747 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 846 event pairs, 0 based on Foata normal form. 0/727 useless extension candidates. Maximal degree in co-relation 411. Up to 18 conditions per place. [2023-11-10 11:52:41,082 INFO L140 encePairwiseOnDemand]: 777/784 looper letters, 27 selfloop transitions, 6 changer transitions 0/744 dead transitions. [2023-11-10 11:52:41,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 748 places, 744 transitions, 1592 flow [2023-11-10 11:52:41,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-10 11:52:41,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-10 11:52:41,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3664 transitions. [2023-11-10 11:52:41,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9346938775510204 [2023-11-10 11:52:41,087 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3664 transitions. [2023-11-10 11:52:41,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3664 transitions. [2023-11-10 11:52:41,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:41,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3664 transitions. [2023-11-10 11:52:41,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 732.8) internal successors, (3664), 5 states have internal predecessors, (3664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:41,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 784.0) internal successors, (4704), 6 states have internal predecessors, (4704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:41,100 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 784.0) internal successors, (4704), 6 states have internal predecessors, (4704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:41,100 INFO L175 Difference]: Start difference. First operand has 745 places, 740 transitions, 1518 flow. Second operand 5 states and 3664 transitions. [2023-11-10 11:52:41,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 748 places, 744 transitions, 1592 flow [2023-11-10 11:52:41,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 731 places, 744 transitions, 1558 flow, removed 0 selfloop flow, removed 17 redundant places. [2023-11-10 11:52:41,110 INFO L231 Difference]: Finished difference. Result has 732 places, 741 transitions, 1504 flow [2023-11-10 11:52:41,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=1484, PETRI_DIFFERENCE_MINUEND_PLACES=727, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=740, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=734, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1504, PETRI_PLACES=732, PETRI_TRANSITIONS=741} [2023-11-10 11:52:41,112 INFO L281 CegarLoopForPetriNet]: 737 programPoint places, -5 predicate places. [2023-11-10 11:52:41,112 INFO L495 AbstractCegarLoop]: Abstraction has has 732 places, 741 transitions, 1504 flow [2023-11-10 11:52:41,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 727.8) internal successors, (3639), 5 states have internal predecessors, (3639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:41,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:41,113 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 11:52:41,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:52:41,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:52:41,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:41,114 INFO L85 PathProgramCache]: Analyzing trace with hash -248285541, now seen corresponding path program 1 times [2023-11-10 11:52:41,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:41,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071071620] [2023-11-10 11:52:41,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:41,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:41,519 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 11:52:41,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:41,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071071620] [2023-11-10 11:52:41,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071071620] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:41,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406781688] [2023-11-10 11:52:41,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:41,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:41,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:41,548 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 11:52:41,582 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 11:52:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:41,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-10 11:52:41,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:42,014 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 11:52:42,017 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 11:52:42,041 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 11:52:42,045 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 11:52:42,068 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 11:52:42,069 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:42,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406781688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:42,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:42,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2023-11-10 11:52:42,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868178817] [2023-11-10 11:52:42,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:42,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:52:42,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:42,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:52:42,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-10 11:52:42,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 707 out of 784 [2023-11-10 11:52:42,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 732 places, 741 transitions, 1504 flow. Second operand has 6 states, 6 states have (on average 711.8333333333334) internal successors, (4271), 6 states have internal predecessors, (4271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:42,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:42,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 707 of 784 [2023-11-10 11:52:42,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:42,287 INFO L124 PetriNetUnfolderBase]: 32/996 cut-off events. [2023-11-10 11:52:42,288 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-10 11:52:42,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1084 conditions, 996 events. 32/996 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2109 event pairs, 6 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 858. Up to 55 conditions per place. [2023-11-10 11:52:42,293 INFO L140 encePairwiseOnDemand]: 772/784 looper letters, 42 selfloop transitions, 11 changer transitions 0/746 dead transitions. [2023-11-10 11:52:42,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 735 places, 746 transitions, 1620 flow [2023-11-10 11:52:42,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-10 11:52:42,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-10 11:52:42,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4296 transitions. [2023-11-10 11:52:42,300 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9132653061224489 [2023-11-10 11:52:42,300 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4296 transitions. [2023-11-10 11:52:42,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4296 transitions. [2023-11-10 11:52:42,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:42,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4296 transitions. [2023-11-10 11:52:42,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 716.0) internal successors, (4296), 6 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:42,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 784.0) internal successors, (5488), 7 states have internal predecessors, (5488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:42,342 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 784.0) internal successors, (5488), 7 states have internal predecessors, (5488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:42,342 INFO L175 Difference]: Start difference. First operand has 732 places, 741 transitions, 1504 flow. Second operand 6 states and 4296 transitions. [2023-11-10 11:52:42,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 735 places, 746 transitions, 1620 flow [2023-11-10 11:52:42,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 732 places, 746 transitions, 1610 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-10 11:52:42,352 INFO L231 Difference]: Finished difference. Result has 733 places, 743 transitions, 1535 flow [2023-11-10 11:52:42,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=1490, PETRI_DIFFERENCE_MINUEND_PLACES=727, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=739, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=728, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1535, PETRI_PLACES=733, PETRI_TRANSITIONS=743} [2023-11-10 11:52:42,354 INFO L281 CegarLoopForPetriNet]: 737 programPoint places, -4 predicate places. [2023-11-10 11:52:42,354 INFO L495 AbstractCegarLoop]: Abstraction has has 733 places, 743 transitions, 1535 flow [2023-11-10 11:52:42,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 711.8333333333334) internal successors, (4271), 6 states have internal predecessors, (4271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:42,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:42,355 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] [2023-11-10 11:52:42,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-10 11:52:42,563 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 11:52:42,564 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:52:42,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:42,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1795830349, now seen corresponding path program 1 times [2023-11-10 11:52:42,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:42,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303128823] [2023-11-10 11:52:42,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:42,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:43,029 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 11:52:43,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:43,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303128823] [2023-11-10 11:52:43,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303128823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:43,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:52:43,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-10 11:52:43,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083123141] [2023-11-10 11:52:43,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:43,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-10 11:52:43,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:43,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-10 11:52:43,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-10 11:52:43,034 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 713 out of 784 [2023-11-10 11:52:43,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 733 places, 743 transitions, 1535 flow. Second operand has 6 states, 6 states have (on average 717.6666666666666) internal successors, (4306), 6 states have internal predecessors, (4306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:43,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:43,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 713 of 784 [2023-11-10 11:52:43,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:43,342 INFO L124 PetriNetUnfolderBase]: 80/1468 cut-off events. [2023-11-10 11:52:43,342 INFO L125 PetriNetUnfolderBase]: For 12/13 co-relation queries the response was YES. [2023-11-10 11:52:43,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1714 conditions, 1468 events. 80/1468 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5818 event pairs, 13 based on Foata normal form. 0/1417 useless extension candidates. Maximal degree in co-relation 1492. Up to 84 conditions per place. [2023-11-10 11:52:43,350 INFO L140 encePairwiseOnDemand]: 773/784 looper letters, 56 selfloop transitions, 19 changer transitions 0/772 dead transitions. [2023-11-10 11:52:43,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 742 places, 772 transitions, 1759 flow [2023-11-10 11:52:43,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:52:43,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:52:43,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 7203 transitions. [2023-11-10 11:52:43,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.91875 [2023-11-10 11:52:43,359 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 7203 transitions. [2023-11-10 11:52:43,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 7203 transitions. [2023-11-10 11:52:43,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:43,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 7203 transitions. [2023-11-10 11:52:43,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 720.3) internal successors, (7203), 10 states have internal predecessors, (7203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:43,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 784.0) internal successors, (8624), 11 states have internal predecessors, (8624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:43,379 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 784.0) internal successors, (8624), 11 states have internal predecessors, (8624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:43,379 INFO L175 Difference]: Start difference. First operand has 733 places, 743 transitions, 1535 flow. Second operand 10 states and 7203 transitions. [2023-11-10 11:52:43,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 742 places, 772 transitions, 1759 flow [2023-11-10 11:52:43,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 738 places, 772 transitions, 1744 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-10 11:52:43,390 INFO L231 Difference]: Finished difference. Result has 742 places, 760 transitions, 1629 flow [2023-11-10 11:52:43,391 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=1520, PETRI_DIFFERENCE_MINUEND_PLACES=729, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=743, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=733, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1629, PETRI_PLACES=742, PETRI_TRANSITIONS=760} [2023-11-10 11:52:43,391 INFO L281 CegarLoopForPetriNet]: 737 programPoint places, 5 predicate places. [2023-11-10 11:52:43,391 INFO L495 AbstractCegarLoop]: Abstraction has has 742 places, 760 transitions, 1629 flow [2023-11-10 11:52:43,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 717.6666666666666) internal successors, (4306), 6 states have internal predecessors, (4306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:43,392 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:43,392 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] [2023-11-10 11:52:43,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 11:52:43,393 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:52:43,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:43,393 INFO L85 PathProgramCache]: Analyzing trace with hash 840939392, now seen corresponding path program 1 times [2023-11-10 11:52:43,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:43,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370639443] [2023-11-10 11:52:43,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:43,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:43,789 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 11:52:43,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:43,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370639443] [2023-11-10 11:52:43,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370639443] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:43,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616711207] [2023-11-10 11:52:43,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:43,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:43,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:43,791 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 11:52:43,793 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 11:52:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:44,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-10 11:52:44,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:44,162 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 11:52:44,187 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 11:52:44,187 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:44,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616711207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:44,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:44,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2023-11-10 11:52:44,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955649210] [2023-11-10 11:52:44,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:44,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:52:44,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:44,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:52:44,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-10 11:52:44,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 696 out of 784 [2023-11-10 11:52:44,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 742 places, 760 transitions, 1629 flow. Second operand has 7 states, 7 states have (on average 701.2857142857143) internal successors, (4909), 7 states have internal predecessors, (4909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:44,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:44,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 696 of 784 [2023-11-10 11:52:44,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:44,718 INFO L124 PetriNetUnfolderBase]: 437/2722 cut-off events. [2023-11-10 11:52:44,718 INFO L125 PetriNetUnfolderBase]: For 227/245 co-relation queries the response was YES. [2023-11-10 11:52:44,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4074 conditions, 2722 events. 437/2722 cut-off events. For 227/245 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 19055 event pairs, 101 based on Foata normal form. 0/2625 useless extension candidates. Maximal degree in co-relation 4051. Up to 360 conditions per place. [2023-11-10 11:52:44,726 INFO L140 encePairwiseOnDemand]: 772/784 looper letters, 73 selfloop transitions, 13 changer transitions 48/821 dead transitions. [2023-11-10 11:52:44,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 752 places, 821 transitions, 2040 flow [2023-11-10 11:52:44,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 11:52:44,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 11:52:44,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 7778 transitions. [2023-11-10 11:52:44,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9019016697588126 [2023-11-10 11:52:44,735 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 7778 transitions. [2023-11-10 11:52:44,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 7778 transitions. [2023-11-10 11:52:44,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:44,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 7778 transitions. [2023-11-10 11:52:44,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 707.0909090909091) internal successors, (7778), 11 states have internal predecessors, (7778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:44,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 784.0) internal successors, (9408), 12 states have internal predecessors, (9408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:44,755 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 784.0) internal successors, (9408), 12 states have internal predecessors, (9408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:44,755 INFO L175 Difference]: Start difference. First operand has 742 places, 760 transitions, 1629 flow. Second operand 11 states and 7778 transitions. [2023-11-10 11:52:44,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 752 places, 821 transitions, 2040 flow [2023-11-10 11:52:44,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 752 places, 821 transitions, 2040 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-10 11:52:44,766 INFO L231 Difference]: Finished difference. Result has 761 places, 762 transitions, 1701 flow [2023-11-10 11:52:44,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=1629, PETRI_DIFFERENCE_MINUEND_PLACES=742, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=760, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=749, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1701, PETRI_PLACES=761, PETRI_TRANSITIONS=762} [2023-11-10 11:52:44,769 INFO L281 CegarLoopForPetriNet]: 737 programPoint places, 24 predicate places. [2023-11-10 11:52:44,770 INFO L495 AbstractCegarLoop]: Abstraction has has 761 places, 762 transitions, 1701 flow [2023-11-10 11:52:44,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 701.2857142857143) internal successors, (4909), 7 states have internal predecessors, (4909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:44,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:44,772 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] [2023-11-10 11:52:44,787 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 11:52:44,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:44,978 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:52:44,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:44,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1210345821, now seen corresponding path program 1 times [2023-11-10 11:52:44,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:44,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862898951] [2023-11-10 11:52:44,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:44,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:45,993 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 11:52:45,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:45,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862898951] [2023-11-10 11:52:45,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862898951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:45,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:52:45,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-10 11:52:45,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838743736] [2023-11-10 11:52:45,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:45,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-10 11:52:45,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:45,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-10 11:52:45,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-10 11:52:46,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 676 out of 784 [2023-11-10 11:52:46,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 761 places, 762 transitions, 1701 flow. Second operand has 12 states, 12 states have (on average 681.0) internal successors, (8172), 12 states have internal predecessors, (8172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:46,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:46,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 676 of 784 [2023-11-10 11:52:46,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:46,500 INFO L124 PetriNetUnfolderBase]: 72/1469 cut-off events. [2023-11-10 11:52:46,500 INFO L125 PetriNetUnfolderBase]: For 135/138 co-relation queries the response was YES. [2023-11-10 11:52:46,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2094 conditions, 1469 events. 72/1469 cut-off events. For 135/138 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5933 event pairs, 7 based on Foata normal form. 4/1436 useless extension candidates. Maximal degree in co-relation 2076. Up to 35 conditions per place. [2023-11-10 11:52:46,507 INFO L140 encePairwiseOnDemand]: 768/784 looper letters, 68 selfloop transitions, 17 changer transitions 13/768 dead transitions. [2023-11-10 11:52:46,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 764 places, 768 transitions, 1921 flow [2023-11-10 11:52:46,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-10 11:52:46,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-10 11:52:46,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8197 transitions. [2023-11-10 11:52:46,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8712797619047619 [2023-11-10 11:52:46,517 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 8197 transitions. [2023-11-10 11:52:46,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 8197 transitions. [2023-11-10 11:52:46,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:46,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 8197 transitions. [2023-11-10 11:52:46,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 683.0833333333334) internal successors, (8197), 12 states have internal predecessors, (8197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:46,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 784.0) internal successors, (10192), 13 states have internal predecessors, (10192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:46,536 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 784.0) internal successors, (10192), 13 states have internal predecessors, (10192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:46,537 INFO L175 Difference]: Start difference. First operand has 761 places, 762 transitions, 1701 flow. Second operand 12 states and 8197 transitions. [2023-11-10 11:52:46,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 764 places, 768 transitions, 1921 flow [2023-11-10 11:52:46,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 760 places, 768 transitions, 1907 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-11-10 11:52:46,550 INFO L231 Difference]: Finished difference. Result has 760 places, 751 transitions, 1669 flow [2023-11-10 11:52:46,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=1679, PETRI_DIFFERENCE_MINUEND_PLACES=749, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=760, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=743, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1669, PETRI_PLACES=760, PETRI_TRANSITIONS=751} [2023-11-10 11:52:46,553 INFO L281 CegarLoopForPetriNet]: 737 programPoint places, 23 predicate places. [2023-11-10 11:52:46,554 INFO L495 AbstractCegarLoop]: Abstraction has has 760 places, 751 transitions, 1669 flow [2023-11-10 11:52:46,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 681.0) internal successors, (8172), 12 states have internal predecessors, (8172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:46,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:46,556 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] [2023-11-10 11:52:46,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-10 11:52:46,556 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:52:46,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:46,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1009874486, now seen corresponding path program 1 times [2023-11-10 11:52:46,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:46,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018845993] [2023-11-10 11:52:46,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:46,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:46,928 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 11:52:46,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:46,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018845993] [2023-11-10 11:52:46,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018845993] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:46,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580113378] [2023-11-10 11:52:46,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:46,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:46,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:46,937 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 11:52:46,953 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 11:52:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:47,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-10 11:52:47,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:47,521 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:47,521 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 11:52:47,547 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:47,547 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 11:52:47,572 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:47,572 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 11:52:47,587 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:52:47,589 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-10 11:52:48,100 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 11:52:48,116 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 11:52:48,146 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 11:52:48,146 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:48,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580113378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:48,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:48,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2023-11-10 11:52:48,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157681864] [2023-11-10 11:52:48,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:48,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-10 11:52:48,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:48,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-10 11:52:48,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2023-11-10 11:52:48,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 632 out of 784 [2023-11-10 11:52:48,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 760 places, 751 transitions, 1669 flow. Second operand has 16 states, 16 states have (on average 637.75) internal successors, (10204), 16 states have internal predecessors, (10204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:48,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:48,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 632 of 784 [2023-11-10 11:52:48,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:49,464 INFO L124 PetriNetUnfolderBase]: 981/4161 cut-off events. [2023-11-10 11:52:49,464 INFO L125 PetriNetUnfolderBase]: For 1566/1597 co-relation queries the response was YES. [2023-11-10 11:52:49,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7559 conditions, 4161 events. 981/4161 cut-off events. For 1566/1597 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 30886 event pairs, 113 based on Foata normal form. 42/4042 useless extension candidates. Maximal degree in co-relation 7544. Up to 698 conditions per place. [2023-11-10 11:52:49,481 INFO L140 encePairwiseOnDemand]: 757/784 looper letters, 131 selfloop transitions, 19 changer transitions 148/909 dead transitions. [2023-11-10 11:52:49,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 783 places, 909 transitions, 2859 flow [2023-11-10 11:52:49,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-10 11:52:49,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-11-10 11:52:49,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 16057 transitions. [2023-11-10 11:52:49,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.819234693877551 [2023-11-10 11:52:49,501 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 16057 transitions. [2023-11-10 11:52:49,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 16057 transitions. [2023-11-10 11:52:49,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:49,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 16057 transitions. [2023-11-10 11:52:49,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 642.28) internal successors, (16057), 25 states have internal predecessors, (16057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:49,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 784.0) internal successors, (20384), 26 states have internal predecessors, (20384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:49,608 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 784.0) internal successors, (20384), 26 states have internal predecessors, (20384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:49,608 INFO L175 Difference]: Start difference. First operand has 760 places, 751 transitions, 1669 flow. Second operand 25 states and 16057 transitions. [2023-11-10 11:52:49,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 783 places, 909 transitions, 2859 flow [2023-11-10 11:52:49,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 764 places, 909 transitions, 2668 flow, removed 3 selfloop flow, removed 19 redundant places. [2023-11-10 11:52:49,623 INFO L231 Difference]: Finished difference. Result has 780 places, 738 transitions, 1692 flow [2023-11-10 11:52:49,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=1596, PETRI_DIFFERENCE_MINUEND_PLACES=740, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=751, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=732, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1692, PETRI_PLACES=780, PETRI_TRANSITIONS=738} [2023-11-10 11:52:49,624 INFO L281 CegarLoopForPetriNet]: 737 programPoint places, 43 predicate places. [2023-11-10 11:52:49,624 INFO L495 AbstractCegarLoop]: Abstraction has has 780 places, 738 transitions, 1692 flow [2023-11-10 11:52:49,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 637.75) internal successors, (10204), 16 states have internal predecessors, (10204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:49,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:49,627 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] [2023-11-10 11:52:49,652 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 11:52:49,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:49,834 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:52:49,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:49,834 INFO L85 PathProgramCache]: Analyzing trace with hash -60333370, now seen corresponding path program 2 times [2023-11-10 11:52:49,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:49,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069269694] [2023-11-10 11:52:49,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:49,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:50,221 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 11:52:50,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:50,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069269694] [2023-11-10 11:52:50,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069269694] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:50,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283520873] [2023-11-10 11:52:50,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-10 11:52:50,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:50,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:50,223 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 11:52:50,238 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 11:52:50,605 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-10 11:52:50,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:52:50,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-10 11:52:50,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:50,761 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:50,761 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 11:52:50,782 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:50,782 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 11:52:50,804 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:50,804 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 11:52:50,816 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:52:50,816 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-10 11:52:51,456 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 11:52:51,473 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 11:52:51,504 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 11:52:51,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:51,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283520873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:51,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:51,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2023-11-10 11:52:51,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129706449] [2023-11-10 11:52:51,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:51,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-10 11:52:51,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:51,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-10 11:52:51,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-11-10 11:52:51,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 632 out of 784 [2023-11-10 11:52:51,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 780 places, 738 transitions, 1692 flow. Second operand has 16 states, 16 states have (on average 637.75) internal successors, (10204), 16 states have internal predecessors, (10204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:51,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:51,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 632 of 784 [2023-11-10 11:52:51,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:52,556 INFO L124 PetriNetUnfolderBase]: 475/2267 cut-off events. [2023-11-10 11:52:52,556 INFO L125 PetriNetUnfolderBase]: For 2718/2958 co-relation queries the response was YES. [2023-11-10 11:52:52,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4629 conditions, 2267 events. 475/2267 cut-off events. For 2718/2958 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 12212 event pairs, 205 based on Foata normal form. 24/2198 useless extension candidates. Maximal degree in co-relation 4601. Up to 435 conditions per place. [2023-11-10 11:52:52,571 INFO L140 encePairwiseOnDemand]: 758/784 looper letters, 117 selfloop transitions, 23 changer transitions 82/833 dead transitions. [2023-11-10 11:52:52,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 777 places, 833 transitions, 2641 flow [2023-11-10 11:52:52,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-10 11:52:52,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-11-10 11:52:52,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 16012 transitions. [2023-11-10 11:52:52,585 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8169387755102041 [2023-11-10 11:52:52,585 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 16012 transitions. [2023-11-10 11:52:52,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 16012 transitions. [2023-11-10 11:52:52,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:52,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 16012 transitions. [2023-11-10 11:52:52,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 640.48) internal successors, (16012), 25 states have internal predecessors, (16012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:52,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 784.0) internal successors, (20384), 26 states have internal predecessors, (20384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:52,625 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 784.0) internal successors, (20384), 26 states have internal predecessors, (20384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:52,626 INFO L175 Difference]: Start difference. First operand has 780 places, 738 transitions, 1692 flow. Second operand 25 states and 16012 transitions. [2023-11-10 11:52:52,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 777 places, 833 transitions, 2641 flow [2023-11-10 11:52:52,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 759 places, 833 transitions, 2433 flow, removed 88 selfloop flow, removed 18 redundant places. [2023-11-10 11:52:52,642 INFO L231 Difference]: Finished difference. Result has 774 places, 738 transitions, 1754 flow [2023-11-10 11:52:52,643 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=1622, PETRI_DIFFERENCE_MINUEND_PLACES=735, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=738, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=715, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1754, PETRI_PLACES=774, PETRI_TRANSITIONS=738} [2023-11-10 11:52:52,644 INFO L281 CegarLoopForPetriNet]: 737 programPoint places, 37 predicate places. [2023-11-10 11:52:52,644 INFO L495 AbstractCegarLoop]: Abstraction has has 774 places, 738 transitions, 1754 flow [2023-11-10 11:52:52,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 637.75) internal successors, (10204), 16 states have internal predecessors, (10204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:52,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:52,646 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] [2023-11-10 11:52:52,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-10 11:52:52,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:52,876 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:52:52,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:52,877 INFO L85 PathProgramCache]: Analyzing trace with hash -161400526, now seen corresponding path program 3 times [2023-11-10 11:52:52,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:52,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650346888] [2023-11-10 11:52:52,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:52,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:53,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:52:53,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:53,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650346888] [2023-11-10 11:52:53,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650346888] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:53,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201443222] [2023-11-10 11:52:53,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-10 11:52:53,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:53,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:53,205 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 11:52:53,236 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 11:52:53,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-10 11:52:53,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:52:53,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-10 11:52:53,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:53,751 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:53,751 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 11:52:53,770 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:53,771 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 11:52:53,789 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:53,790 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 11:52:53,804 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:52:53,804 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-10 11:52:54,307 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 11:52:54,321 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 11:52:54,350 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 11:52:54,351 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:54,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201443222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:54,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:54,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2023-11-10 11:52:54,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243766425] [2023-11-10 11:52:54,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:54,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-10 11:52:54,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:54,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-10 11:52:54,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2023-11-10 11:52:54,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 632 out of 784 [2023-11-10 11:52:54,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 774 places, 738 transitions, 1754 flow. Second operand has 16 states, 16 states have (on average 637.75) internal successors, (10204), 16 states have internal predecessors, (10204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:54,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:54,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 632 of 784 [2023-11-10 11:52:54,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:55,410 INFO L124 PetriNetUnfolderBase]: 494/2414 cut-off events. [2023-11-10 11:52:55,410 INFO L125 PetriNetUnfolderBase]: For 6658/7310 co-relation queries the response was YES. [2023-11-10 11:52:55,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5592 conditions, 2414 events. 494/2414 cut-off events. For 6658/7310 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 13500 event pairs, 74 based on Foata normal form. 60/2376 useless extension candidates. Maximal degree in co-relation 5559. Up to 254 conditions per place. [2023-11-10 11:52:55,424 INFO L140 encePairwiseOnDemand]: 759/784 looper letters, 145 selfloop transitions, 18 changer transitions 85/859 dead transitions. [2023-11-10 11:52:55,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 785 places, 859 transitions, 3128 flow [2023-11-10 11:52:55,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-10 11:52:55,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-11-10 11:52:55,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 16030 transitions. [2023-11-10 11:52:55,433 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8178571428571428 [2023-11-10 11:52:55,433 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 16030 transitions. [2023-11-10 11:52:55,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 16030 transitions. [2023-11-10 11:52:55,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:55,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 16030 transitions. [2023-11-10 11:52:55,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 641.2) internal successors, (16030), 25 states have internal predecessors, (16030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:55,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 784.0) internal successors, (20384), 26 states have internal predecessors, (20384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:55,460 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 784.0) internal successors, (20384), 26 states have internal predecessors, (20384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:55,460 INFO L175 Difference]: Start difference. First operand has 774 places, 738 transitions, 1754 flow. Second operand 25 states and 16030 transitions. [2023-11-10 11:52:55,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 785 places, 859 transitions, 3128 flow [2023-11-10 11:52:55,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 764 places, 859 transitions, 2780 flow, removed 127 selfloop flow, removed 21 redundant places. [2023-11-10 11:52:55,475 INFO L231 Difference]: Finished difference. Result has 779 places, 741 transitions, 1771 flow [2023-11-10 11:52:55,476 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=1652, PETRI_DIFFERENCE_MINUEND_PLACES=740, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=738, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=721, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1771, PETRI_PLACES=779, PETRI_TRANSITIONS=741} [2023-11-10 11:52:55,477 INFO L281 CegarLoopForPetriNet]: 737 programPoint places, 42 predicate places. [2023-11-10 11:52:55,477 INFO L495 AbstractCegarLoop]: Abstraction has has 779 places, 741 transitions, 1771 flow [2023-11-10 11:52:55,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 637.75) internal successors, (10204), 16 states have internal predecessors, (10204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:55,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:55,478 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] [2023-11-10 11:52:55,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-10 11:52:55,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:55,686 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:52:55,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:55,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1072042694, now seen corresponding path program 4 times [2023-11-10 11:52:55,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:55,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135789448] [2023-11-10 11:52:55,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:55,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:56,002 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 11:52:56,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:56,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135789448] [2023-11-10 11:52:56,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135789448] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:56,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214259875] [2023-11-10 11:52:56,003 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-10 11:52:56,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:56,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:56,019 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 11:52:56,020 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 11:52:56,437 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-10 11:52:56,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:52:56,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-10 11:52:56,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:56,604 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:56,604 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 11:52:56,622 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:56,623 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 11:52:56,641 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:56,641 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 11:52:56,653 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:52:56,653 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-10 11:52:57,137 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 11:52:57,154 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 11:52:57,190 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 11:52:57,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:52:57,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214259875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:52:57,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:52:57,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2023-11-10 11:52:57,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052938749] [2023-11-10 11:52:57,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:52:57,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-10 11:52:57,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:52:57,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-10 11:52:57,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-11-10 11:52:57,196 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 632 out of 784 [2023-11-10 11:52:57,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 779 places, 741 transitions, 1771 flow. Second operand has 16 states, 16 states have (on average 637.75) internal successors, (10204), 16 states have internal predecessors, (10204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:57,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:52:57,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 632 of 784 [2023-11-10 11:52:57,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:52:58,366 INFO L124 PetriNetUnfolderBase]: 485/2347 cut-off events. [2023-11-10 11:52:58,366 INFO L125 PetriNetUnfolderBase]: For 5198/5518 co-relation queries the response was YES. [2023-11-10 11:52:58,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5391 conditions, 2347 events. 485/2347 cut-off events. For 5198/5518 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 12955 event pairs, 205 based on Foata normal form. 46/2292 useless extension candidates. Maximal degree in co-relation 5353. Up to 459 conditions per place. [2023-11-10 11:52:58,377 INFO L140 encePairwiseOnDemand]: 758/784 looper letters, 122 selfloop transitions, 25 changer transitions 81/839 dead transitions. [2023-11-10 11:52:58,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 839 transitions, 2847 flow [2023-11-10 11:52:58,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-10 11:52:58,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-10 11:52:58,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 16650 transitions. [2023-11-10 11:52:58,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8168171114599686 [2023-11-10 11:52:58,389 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 16650 transitions. [2023-11-10 11:52:58,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 16650 transitions. [2023-11-10 11:52:58,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:52:58,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 16650 transitions. [2023-11-10 11:52:58,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 640.3846153846154) internal successors, (16650), 26 states have internal predecessors, (16650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:58,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 784.0) internal successors, (21168), 27 states have internal predecessors, (21168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:58,420 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 784.0) internal successors, (21168), 27 states have internal predecessors, (21168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:58,420 INFO L175 Difference]: Start difference. First operand has 779 places, 741 transitions, 1771 flow. Second operand 26 states and 16650 transitions. [2023-11-10 11:52:58,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 792 places, 839 transitions, 2847 flow [2023-11-10 11:52:58,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 771 places, 839 transitions, 2635 flow, removed 81 selfloop flow, removed 21 redundant places. [2023-11-10 11:52:58,439 INFO L231 Difference]: Finished difference. Result has 787 places, 742 transitions, 1836 flow [2023-11-10 11:52:58,440 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=1688, PETRI_DIFFERENCE_MINUEND_PLACES=746, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=741, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=716, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1836, PETRI_PLACES=787, PETRI_TRANSITIONS=742} [2023-11-10 11:52:58,440 INFO L281 CegarLoopForPetriNet]: 737 programPoint places, 50 predicate places. [2023-11-10 11:52:58,440 INFO L495 AbstractCegarLoop]: Abstraction has has 787 places, 742 transitions, 1836 flow [2023-11-10 11:52:58,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 637.75) internal successors, (10204), 16 states have internal predecessors, (10204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:52:58,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:52:58,442 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] [2023-11-10 11:52:58,448 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 11:52:58,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:58,649 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:52:58,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:52:58,650 INFO L85 PathProgramCache]: Analyzing trace with hash 2055660026, now seen corresponding path program 5 times [2023-11-10 11:52:58,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:52:58,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876652597] [2023-11-10 11:52:58,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:52:58,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:52:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:52:58,972 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 11:52:58,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:52:58,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876652597] [2023-11-10 11:52:58,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876652597] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:52:58,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102733264] [2023-11-10 11:52:58,972 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-10 11:52:58,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:52:58,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:52:58,973 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 11:52:58,975 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 11:52:59,354 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-10 11:52:59,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:52:59,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-10 11:52:59,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:52:59,520 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:59,520 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 11:52:59,539 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:59,539 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 11:52:59,558 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:52:59,559 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 11:52:59,572 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:52:59,572 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-10 11:53:00,094 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 11:53:00,112 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 11:53:00,154 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 11:53:00,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:00,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102733264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:00,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:00,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2023-11-10 11:53:00,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290512636] [2023-11-10 11:53:00,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:00,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-10 11:53:00,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:00,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-10 11:53:00,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-11-10 11:53:00,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 632 out of 784 [2023-11-10 11:53:00,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 787 places, 742 transitions, 1836 flow. Second operand has 16 states, 16 states have (on average 637.75) internal successors, (10204), 16 states have internal predecessors, (10204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:00,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:00,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 632 of 784 [2023-11-10 11:53:00,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:01,258 INFO L124 PetriNetUnfolderBase]: 491/2415 cut-off events. [2023-11-10 11:53:01,258 INFO L125 PetriNetUnfolderBase]: For 10222/10782 co-relation queries the response was YES. [2023-11-10 11:53:01,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6111 conditions, 2415 events. 491/2415 cut-off events. For 10222/10782 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 13720 event pairs, 68 based on Foata normal form. 26/2341 useless extension candidates. Maximal degree in co-relation 6069. Up to 370 conditions per place. [2023-11-10 11:53:01,278 INFO L140 encePairwiseOnDemand]: 758/784 looper letters, 131 selfloop transitions, 21 changer transitions 84/847 dead transitions. [2023-11-10 11:53:01,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 801 places, 847 transitions, 3175 flow [2023-11-10 11:53:01,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-10 11:53:01,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-10 11:53:01,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 16655 transitions. [2023-11-10 11:53:01,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8170624018838305 [2023-11-10 11:53:01,287 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 16655 transitions. [2023-11-10 11:53:01,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 16655 transitions. [2023-11-10 11:53:01,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:01,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 16655 transitions. [2023-11-10 11:53:01,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 640.5769230769231) internal successors, (16655), 26 states have internal predecessors, (16655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:01,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 784.0) internal successors, (21168), 27 states have internal predecessors, (21168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:01,315 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 784.0) internal successors, (21168), 27 states have internal predecessors, (21168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:01,315 INFO L175 Difference]: Start difference. First operand has 787 places, 742 transitions, 1836 flow. Second operand 26 states and 16655 transitions. [2023-11-10 11:53:01,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 801 places, 847 transitions, 3175 flow [2023-11-10 11:53:01,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 772 places, 847 transitions, 2719 flow, removed 190 selfloop flow, removed 29 redundant places. [2023-11-10 11:53:01,334 INFO L231 Difference]: Finished difference. Result has 788 places, 743 transitions, 1827 flow [2023-11-10 11:53:01,334 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=1688, PETRI_DIFFERENCE_MINUEND_PLACES=747, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=742, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=722, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1827, PETRI_PLACES=788, PETRI_TRANSITIONS=743} [2023-11-10 11:53:01,335 INFO L281 CegarLoopForPetriNet]: 737 programPoint places, 51 predicate places. [2023-11-10 11:53:01,335 INFO L495 AbstractCegarLoop]: Abstraction has has 788 places, 743 transitions, 1827 flow [2023-11-10 11:53:01,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 637.75) internal successors, (10204), 16 states have internal predecessors, (10204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:01,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:01,336 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] [2023-11-10 11:53:01,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-10 11:53:01,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:01,544 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:53:01,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:01,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1206812200, now seen corresponding path program 6 times [2023-11-10 11:53:01,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:01,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101937543] [2023-11-10 11:53:01,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:01,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:01,841 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 11:53:01,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:01,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101937543] [2023-11-10 11:53:01,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101937543] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:01,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742693838] [2023-11-10 11:53:01,842 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-10 11:53:01,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:01,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:01,843 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:53:01,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-10 11:53:02,250 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2023-11-10 11:53:02,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-10 11:53:02,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-10 11:53:02,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:02,420 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:02,420 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 19 treesize of output 16 [2023-11-10 11:53:02,436 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:02,437 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:02,455 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:02,457 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:02,469 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:53:02,470 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-10 11:53:02,930 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 11:53:02,946 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 11:53:02,969 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 11:53:02,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:02,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742693838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:02,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:02,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2023-11-10 11:53:02,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263897162] [2023-11-10 11:53:02,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:02,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-10 11:53:02,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:02,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-10 11:53:02,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2023-11-10 11:53:02,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 632 out of 784 [2023-11-10 11:53:02,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 788 places, 743 transitions, 1827 flow. Second operand has 16 states, 16 states have (on average 637.75) internal successors, (10204), 16 states have internal predecessors, (10204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:02,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:02,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 632 of 784 [2023-11-10 11:53:02,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:03,884 INFO L124 PetriNetUnfolderBase]: 379/2051 cut-off events. [2023-11-10 11:53:03,884 INFO L125 PetriNetUnfolderBase]: For 7041/7281 co-relation queries the response was YES. [2023-11-10 11:53:03,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4791 conditions, 2051 events. 379/2051 cut-off events. For 7041/7281 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 10446 event pairs, 146 based on Foata normal form. 26/2007 useless extension candidates. Maximal degree in co-relation 4749. Up to 300 conditions per place. [2023-11-10 11:53:03,895 INFO L140 encePairwiseOnDemand]: 758/784 looper letters, 108 selfloop transitions, 15 changer transitions 91/825 dead transitions. [2023-11-10 11:53:03,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 795 places, 825 transitions, 2846 flow [2023-11-10 11:53:03,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-10 11:53:03,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-10 11:53:03,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 14737 transitions. [2023-11-10 11:53:03,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8172692990239574 [2023-11-10 11:53:03,905 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 14737 transitions. [2023-11-10 11:53:03,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 14737 transitions. [2023-11-10 11:53:03,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:03,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 14737 transitions. [2023-11-10 11:53:03,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 640.7391304347826) internal successors, (14737), 23 states have internal predecessors, (14737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:03,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 784.0) internal successors, (18816), 24 states have internal predecessors, (18816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:03,926 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 784.0) internal successors, (18816), 24 states have internal predecessors, (18816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:03,926 INFO L175 Difference]: Start difference. First operand has 788 places, 743 transitions, 1827 flow. Second operand 23 states and 14737 transitions. [2023-11-10 11:53:03,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 795 places, 825 transitions, 2846 flow [2023-11-10 11:53:03,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 769 places, 825 transitions, 2556 flow, removed 118 selfloop flow, removed 26 redundant places. [2023-11-10 11:53:03,943 INFO L231 Difference]: Finished difference. Result has 783 places, 731 transitions, 1686 flow [2023-11-10 11:53:03,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=1694, PETRI_DIFFERENCE_MINUEND_PLACES=747, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=743, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=728, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1686, PETRI_PLACES=783, PETRI_TRANSITIONS=731} [2023-11-10 11:53:03,944 INFO L281 CegarLoopForPetriNet]: 737 programPoint places, 46 predicate places. [2023-11-10 11:53:03,944 INFO L495 AbstractCegarLoop]: Abstraction has has 783 places, 731 transitions, 1686 flow [2023-11-10 11:53:03,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 637.75) internal successors, (10204), 16 states have internal predecessors, (10204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:03,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:53:03,946 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] [2023-11-10 11:53:03,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-10 11:53:04,153 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,SelfDestructingSolverStorable11 [2023-11-10 11:53:04,153 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-10 11:53:04,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:53:04,153 INFO L85 PathProgramCache]: Analyzing trace with hash 511944171, now seen corresponding path program 1 times [2023-11-10 11:53:04,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:53:04,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363212656] [2023-11-10 11:53:04,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:04,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:53:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:04,426 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 11:53:04,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:53:04,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363212656] [2023-11-10 11:53:04,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363212656] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 11:53:04,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345184408] [2023-11-10 11:53:04,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:53:04,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 11:53:04,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:53:04,427 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-10 11:53:04,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-10 11:53:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:53:04,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-10 11:53:04,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 11:53:05,046 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:05,047 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:05,068 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:05,069 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:05,091 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-10 11:53:05,091 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-10 11:53:05,106 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-10 11:53:05,106 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-10 11:53:05,765 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-10 11:53:05,770 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-10 11:53:05,774 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-10 11:53:05,804 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 19 treesize of output 7 [2023-11-10 11:53:05,921 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 11:53:05,952 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 11:53:05,952 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-10 11:53:05,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345184408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:53:05,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-10 11:53:05,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2023-11-10 11:53:05,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035163062] [2023-11-10 11:53:05,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:53:05,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-10 11:53:05,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:53:05,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-10 11:53:05,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2023-11-10 11:53:05,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 784 [2023-11-10 11:53:05,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 783 places, 731 transitions, 1686 flow. Second operand has 19 states, 19 states have (on average 623.6315789473684) internal successors, (11849), 19 states have internal predecessors, (11849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:05,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:53:05,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 784 [2023-11-10 11:53:05,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:53:06,985 INFO L124 PetriNetUnfolderBase]: 203/1398 cut-off events. [2023-11-10 11:53:06,985 INFO L125 PetriNetUnfolderBase]: For 1565/1575 co-relation queries the response was YES. [2023-11-10 11:53:06,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2492 conditions, 1398 events. 203/1398 cut-off events. For 1565/1575 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4748 event pairs, 18 based on Foata normal form. 16/1386 useless extension candidates. Maximal degree in co-relation 2453. Up to 81 conditions per place. [2023-11-10 11:53:06,989 INFO L140 encePairwiseOnDemand]: 758/784 looper letters, 0 selfloop transitions, 0 changer transitions 800/800 dead transitions. [2023-11-10 11:53:06,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 791 places, 800 transitions, 2401 flow [2023-11-10 11:53:06,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-10 11:53:06,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2023-11-10 11:53:06,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 19353 transitions. [2023-11-10 11:53:07,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.796288676761027 [2023-11-10 11:53:07,000 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 19353 transitions. [2023-11-10 11:53:07,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 19353 transitions. [2023-11-10 11:53:07,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:53:07,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 19353 transitions. [2023-11-10 11:53:07,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 624.2903225806451) internal successors, (19353), 31 states have internal predecessors, (19353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:07,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 784.0) internal successors, (25088), 32 states have internal predecessors, (25088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:07,031 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 784.0) internal successors, (25088), 32 states have internal predecessors, (25088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:07,031 INFO L175 Difference]: Start difference. First operand has 783 places, 731 transitions, 1686 flow. Second operand 31 states and 19353 transitions. [2023-11-10 11:53:07,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 791 places, 800 transitions, 2401 flow [2023-11-10 11:53:07,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 763 places, 800 transitions, 2255 flow, removed 46 selfloop flow, removed 28 redundant places. [2023-11-10 11:53:07,042 INFO L231 Difference]: Finished difference. Result has 763 places, 0 transitions, 0 flow [2023-11-10 11:53:07,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=784, PETRI_DIFFERENCE_MINUEND_FLOW=1583, PETRI_DIFFERENCE_MINUEND_PLACES=733, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=729, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=0, PETRI_PLACES=763, PETRI_TRANSITIONS=0} [2023-11-10 11:53:07,044 INFO L281 CegarLoopForPetriNet]: 737 programPoint places, 26 predicate places. [2023-11-10 11:53:07,044 INFO L495 AbstractCegarLoop]: Abstraction has has 763 places, 0 transitions, 0 flow [2023-11-10 11:53:07,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 623.6315789473684) internal successors, (11849), 19 states have internal predecessors, (11849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:53:07,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-11-10 11:53:07,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-11-10 11:53:07,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-11-10 11:53:07,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-11-10 11:53:07,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-11-10 11:53:07,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-11-10 11:53:07,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-11-10 11:53:07,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-10 11:53:07,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-10 11:53:07,257 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:53:07,262 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 11:53:07,262 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 11:53:07,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:53:07 BasicIcfg [2023-11-10 11:53:07,264 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 11:53:07,265 INFO L158 Benchmark]: Toolchain (without parser) took 34024.10ms. Allocated memory was 260.0MB in the beginning and 1.0GB in the end (delta: 786.4MB). Free memory was 212.1MB in the beginning and 834.2MB in the end (delta: -622.1MB). Peak memory consumption was 701.6MB. Max. memory is 8.0GB. [2023-11-10 11:53:07,265 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 216.0MB. Free memory is still 169.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:53:07,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4491.33ms. Allocated memory was 260.0MB in the beginning and 373.3MB in the end (delta: 113.2MB). Free memory was 211.6MB in the beginning and 251.7MB in the end (delta: -40.0MB). Peak memory consumption was 119.9MB. Max. memory is 8.0GB. [2023-11-10 11:53:07,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 169.79ms. Allocated memory is still 373.3MB. Free memory was 251.7MB in the beginning and 240.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-11-10 11:53:07,265 INFO L158 Benchmark]: Boogie Preprocessor took 77.51ms. Allocated memory is still 373.3MB. Free memory was 240.7MB in the beginning and 234.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-11-10 11:53:07,265 INFO L158 Benchmark]: RCFGBuilder took 885.45ms. Allocated memory is still 373.3MB. Free memory was 234.9MB in the beginning and 171.5MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2023-11-10 11:53:07,266 INFO L158 Benchmark]: TraceAbstraction took 28394.64ms. Allocated memory was 373.3MB in the beginning and 1.0GB in the end (delta: 673.2MB). Free memory was 171.0MB in the beginning and 834.2MB in the end (delta: -663.2MB). Peak memory consumption was 545.8MB. Max. memory is 8.0GB. [2023-11-10 11:53:07,266 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 216.0MB. Free memory is still 169.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4491.33ms. Allocated memory was 260.0MB in the beginning and 373.3MB in the end (delta: 113.2MB). Free memory was 211.6MB in the beginning and 251.7MB in the end (delta: -40.0MB). Peak memory consumption was 119.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 169.79ms. Allocated memory is still 373.3MB. Free memory was 251.7MB in the beginning and 240.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 77.51ms. Allocated memory is still 373.3MB. Free memory was 240.7MB in the beginning and 234.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 885.45ms. Allocated memory is still 373.3MB. Free memory was 234.9MB in the beginning and 171.5MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * TraceAbstraction took 28394.64ms. Allocated memory was 373.3MB in the beginning and 1.0GB in the end (delta: 673.2MB). Free memory was 171.0MB in the beginning and 834.2MB in the end (delta: -663.2MB). Peak memory consumption was 545.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 3227]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3227] - GenericResultAtLocation [Line: 5814]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 174]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 174]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 174]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 837 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 28.3s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2047 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2047 mSDsluCounter, 6280 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5477 mSDsCounter, 219 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8840 IncrementalHoareTripleChecker+Invalid, 9059 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 219 mSolverCounterUnsat, 803 mSDtfsCounter, 8840 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2802 GetRequests, 2453 SyntacticMatches, 0 SemanticMatches, 349 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2124 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1836occurred in iteration=10, InterpolantAutomatonStates: 243, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 6100 NumberOfCodeBlocks, 6076 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 6078 ConstructedInterpolants, 0 QuantifiedInterpolants, 23258 SizeOfPredicates, 155 NumberOfNonLiveVariables, 9105 ConjunctsInSsa, 327 ConjunctsInUnsatCore, 22 InterpolantComputations, 13 PerfectInterpolantSequences, 11/20 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-10 11:53:07,299 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...