/usr/lib/jvm/java-1.11.0-openjdk-amd64/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_configure.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 15:30:50,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 15:30:50,766 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-SemanticLbe.epf [2023-11-17 15:30:50,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 15:30:50,792 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 15:30:50,792 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 15:30:50,793 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 15:30:50,793 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 15:30:50,793 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 15:30:50,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 15:30:50,797 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 15:30:50,797 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 15:30:50,797 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 15:30:50,798 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 15:30:50,798 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 15:30:50,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 15:30:50,798 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 15:30:50,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 15:30:50,798 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 15:30:50,799 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 15:30:50,799 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 15:30:50,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 15:30:50,799 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 15:30:50,800 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 15:30:50,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 15:30:50,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:30:50,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 15:30:50,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 15:30:50,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 15:30:50,801 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 15:30:50,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 15:30:50,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 15:30:50,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 15:30:50,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 15:30:50,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 15:30:51,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 15:30:51,002 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 15:30:51,002 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 15:30:51,003 INFO L431 ainManager$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_configure.i [2023-11-17 15:30:51,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 15:30:52,311 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 15:30:52,311 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_configure.i [2023-11-17 15:30:52,345 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/248642888/d206c9173a3f4f8aa8c7f78dccc1301b/FLAG9ce0fb81a [2023-11-17 15:30:52,517 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/248642888/d206c9173a3f4f8aa8c7f78dccc1301b [2023-11-17 15:30:52,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 15:30:52,520 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 15:30:52,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 15:30:52,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 15:30:52,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 15:30:52,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:30:52" (1/1) ... [2023-11-17 15:30:52,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b0191aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:52, skipping insertion in model container [2023-11-17 15:30:52,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:30:52" (1/1) ... [2023-11-17 15:30:52,622 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 15:30:52,852 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_configure.i[5469,5482] [2023-11-17 15:30:55,723 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-17 15:30:56,112 WARN L1588 CHandler]: Possible shadowing of function iminor [2023-11-17 15:30:56,115 WARN L1588 CHandler]: Possible shadowing of function iminor [2023-11-17 15:30:56,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:30:56,193 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 15:30:56,211 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_configure.i[5469,5482] [2023-11-17 15:30:56,273 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] [2023-11-17 15:30:56,274 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] [2023-11-17 15:30:56,274 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] [2023-11-17 15:30:56,274 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] [2023-11-17 15:30:56,331 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-17 15:30:56,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-17 15:30:56,368 WARN L1588 CHandler]: Possible shadowing of function iminor [2023-11-17 15:30:56,369 WARN L1588 CHandler]: Possible shadowing of function iminor [2023-11-17 15:30:56,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:30:56,788 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:30:56,789 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:30:56,789 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:30:56,789 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:30:56,789 WARN L675 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:30:56,789 WARN L675 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:30:56,789 WARN L675 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:30:56,794 INFO L206 MainTranslator]: Completed translation [2023-11-17 15:30:56,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:56 WrapperNode [2023-11-17 15:30:56,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 15:30:56,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 15:30:56,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 15:30:56,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 15:30:56,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:56" (1/1) ... [2023-11-17 15:30:56,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:56" (1/1) ... [2023-11-17 15:30:56,976 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 70, statements flattened = 747 [2023-11-17 15:30:56,976 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 15:30:56,977 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 15:30:56,977 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 15:30:56,977 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 15:30:56,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:56" (1/1) ... [2023-11-17 15:30:56,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:56" (1/1) ... [2023-11-17 15:30:57,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:56" (1/1) ... [2023-11-17 15:30:57,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:56" (1/1) ... [2023-11-17 15:30:57,017 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:56" (1/1) ... [2023-11-17 15:30:57,022 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:56" (1/1) ... [2023-11-17 15:30:57,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:56" (1/1) ... [2023-11-17 15:30:57,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:56" (1/1) ... [2023-11-17 15:30:57,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 15:30:57,043 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 15:30:57,044 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 15:30:57,044 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 15:30:57,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:56" (1/1) ... [2023-11-17 15:30:57,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:30:57,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:30:57,069 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) [2023-11-17 15:30:57,105 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 [2023-11-17 15:30:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 15:30:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 15:30:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 15:30:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-17 15:30:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 15:30:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 15:30:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2023-11-17 15:30:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2023-11-17 15:30:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-17 15:30:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 15:30:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-17 15:30:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 15:30:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2023-11-17 15:30:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2023-11-17 15:30:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 15:30:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 15:30:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 15:30:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-17 15:30:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 15:30:57,116 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 15:30:57,458 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 15:30:57,460 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 15:30:58,148 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 15:30:58,180 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 15:30:58,180 INFO L307 CfgBuilder]: Removed 21 assume(true) statements. [2023-11-17 15:30:58,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:30:58 BoogieIcfgContainer [2023-11-17 15:30:58,181 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 15:30:58,183 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 15:30:58,183 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 15:30:58,185 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 15:30:58,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:30:52" (1/3) ... [2023-11-17 15:30:58,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f43e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:30:58, skipping insertion in model container [2023-11-17 15:30:58,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:56" (2/3) ... [2023-11-17 15:30:58,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f43e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:30:58, skipping insertion in model container [2023-11-17 15:30:58,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:30:58" (3/3) ... [2023-11-17 15:30:58,187 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_configure.i [2023-11-17 15:30:58,199 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 15:30:58,199 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-17 15:30:58,199 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 15:30:58,297 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-17 15:30:58,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 900 places, 942 transitions, 1898 flow [2023-11-17 15:30:58,563 INFO L124 PetriNetUnfolderBase]: 49/940 cut-off events. [2023-11-17 15:30:58,563 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-17 15:30:58,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 949 conditions, 940 events. 49/940 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1395 event pairs, 0 based on Foata normal form. 0/889 useless extension candidates. Maximal degree in co-relation 730. Up to 9 conditions per place. [2023-11-17 15:30:58,572 INFO L82 GeneralOperation]: Start removeDead. Operand has 900 places, 942 transitions, 1898 flow [2023-11-17 15:30:58,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 889 places, 931 transitions, 1871 flow [2023-11-17 15:30:58,581 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:30:58,591 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 889 places, 931 transitions, 1871 flow [2023-11-17 15:30:58,594 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 889 places, 931 transitions, 1871 flow [2023-11-17 15:30:58,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 889 places, 931 transitions, 1871 flow [2023-11-17 15:30:58,731 INFO L124 PetriNetUnfolderBase]: 49/931 cut-off events. [2023-11-17 15:30:58,731 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 15:30:58,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 931 events. 49/931 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1289 event pairs, 0 based on Foata normal form. 0/880 useless extension candidates. Maximal degree in co-relation 730. Up to 9 conditions per place. [2023-11-17 15:30:58,743 INFO L119 LiptonReduction]: Number of co-enabled transitions 26542 [2023-11-17 15:32:11,903 WARN L293 SmtUtils]: Spent 5.48s on a formula simplification that was a NOOP. DAG size: 287 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:32:35,553 WARN L293 SmtUtils]: Spent 7.17s on a formula simplification that was a NOOP. DAG size: 285 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:32:42,294 WARN L293 SmtUtils]: Spent 6.74s on a formula simplification that was a NOOP. DAG size: 281 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:32:49,558 WARN L293 SmtUtils]: Spent 7.26s on a formula simplification that was a NOOP. DAG size: 285 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:32:56,321 WARN L293 SmtUtils]: Spent 6.76s on a formula simplification that was a NOOP. DAG size: 281 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:33:56,050 WARN L293 SmtUtils]: Spent 58.05s on a formula simplification. DAG size of input: 619 DAG size of output: 617 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:34:22,418 WARN L293 SmtUtils]: Spent 26.36s on a formula simplification that was a NOOP. DAG size: 573 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:36:45,983 WARN L293 SmtUtils]: Spent 2.39m on a formula simplification. DAG size of input: 619 DAG size of output: 617 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:37:50,498 WARN L293 SmtUtils]: Spent 1.08m on a formula simplification that was a NOOP. DAG size: 573 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:37:53,476 INFO L134 LiptonReduction]: Checked pairs total: 20888 [2023-11-17 15:37:53,476 INFO L136 LiptonReduction]: Total number of compositions: 1024 [2023-11-17 15:37:53,489 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:37:53,497 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;@1670936b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:37:53,498 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-17 15:37:53,503 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:37:53,504 INFO L124 PetriNetUnfolderBase]: 2/6 cut-off events. [2023-11-17 15:37:53,504 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:37:53,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:37:53,504 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-17 15:37:53,505 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 15:37:53,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:37:53,509 INFO L85 PathProgramCache]: Analyzing trace with hash 3455512, now seen corresponding path program 1 times [2023-11-17 15:37:53,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:37:53,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891609794] [2023-11-17 15:37:53,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:37:53,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:37:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:37:53,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:37:53,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:37:53,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891609794] [2023-11-17 15:37:53,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891609794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:37:53,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:37:53,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 15:37:53,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251351258] [2023-11-17 15:37:53,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:37:53,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 15:37:53,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:37:53,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 15:37:53,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 15:37:53,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 910 out of 1966 [2023-11-17 15:37:53,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 45 transitions, 99 flow. Second operand has 2 states, 2 states have (on average 911.5) internal successors, (1823), 2 states have internal predecessors, (1823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:53,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:37:53,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 910 of 1966 [2023-11-17 15:37:53,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:37:54,223 INFO L124 PetriNetUnfolderBase]: 61/127 cut-off events. [2023-11-17 15:37:54,224 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-17 15:37:54,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 127 events. 61/127 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 339 event pairs, 51 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 200. Up to 128 conditions per place. [2023-11-17 15:37:54,226 INFO L140 encePairwiseOnDemand]: 1956/1966 looper letters, 31 selfloop transitions, 0 changer transitions 4/35 dead transitions. [2023-11-17 15:37:54,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 35 transitions, 149 flow [2023-11-17 15:37:54,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 15:37:54,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-17 15:37:54,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1865 transitions. [2023-11-17 15:37:54,246 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47431332655137337 [2023-11-17 15:37:54,247 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1865 transitions. [2023-11-17 15:37:54,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1865 transitions. [2023-11-17 15:37:54,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:37:54,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1865 transitions. [2023-11-17 15:37:54,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 932.5) internal successors, (1865), 2 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:54,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1966.0) internal successors, (5898), 3 states have internal predecessors, (5898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:54,271 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1966.0) internal successors, (5898), 3 states have internal predecessors, (5898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:54,272 INFO L175 Difference]: Start difference. First operand has 33 places, 45 transitions, 99 flow. Second operand 2 states and 1865 transitions. [2023-11-17 15:37:54,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 35 transitions, 149 flow [2023-11-17 15:37:54,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-17 15:37:54,276 INFO L231 Difference]: Finished difference. Result has 30 places, 31 transitions, 65 flow [2023-11-17 15:37:54,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1966, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=31} [2023-11-17 15:37:54,281 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2023-11-17 15:37:54,282 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 31 transitions, 65 flow [2023-11-17 15:37:54,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 911.5) internal successors, (1823), 2 states have internal predecessors, (1823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:54,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:37:54,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-17 15:37:54,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 15:37:54,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 15:37:54,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:37:54,289 INFO L85 PathProgramCache]: Analyzing trace with hash -123491780, now seen corresponding path program 1 times [2023-11-17 15:37:54,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:37:54,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750058336] [2023-11-17 15:37:54,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:37:54,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:37:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:37:54,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:37:54,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:37:54,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750058336] [2023-11-17 15:37:54,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750058336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:37:54,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:37:54,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 15:37:54,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003489200] [2023-11-17 15:37:54,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:37:54,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:37:54,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:37:54,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:37:54,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:37:54,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 878 out of 1966 [2023-11-17 15:37:54,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 31 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 880.0) internal successors, (2640), 3 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:54,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:37:54,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 878 of 1966 [2023-11-17 15:37:54,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:37:55,651 INFO L124 PetriNetUnfolderBase]: 39/89 cut-off events. [2023-11-17 15:37:55,653 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:37:55,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 89 events. 39/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 251 event pairs, 17 based on Foata normal form. 8/87 useless extension candidates. Maximal degree in co-relation 189. Up to 78 conditions per place. [2023-11-17 15:37:55,654 INFO L140 encePairwiseOnDemand]: 1961/1966 looper letters, 32 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2023-11-17 15:37:55,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 36 transitions, 149 flow [2023-11-17 15:37:55,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:37:55,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:37:55,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2671 transitions. [2023-11-17 15:37:55,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45286537809426924 [2023-11-17 15:37:55,662 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2671 transitions. [2023-11-17 15:37:55,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2671 transitions. [2023-11-17 15:37:55,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:37:55,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2671 transitions. [2023-11-17 15:37:55,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 890.3333333333334) internal successors, (2671), 3 states have internal predecessors, (2671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:55,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1966.0) internal successors, (7864), 4 states have internal predecessors, (7864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:55,678 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1966.0) internal successors, (7864), 4 states have internal predecessors, (7864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:55,678 INFO L175 Difference]: Start difference. First operand has 30 places, 31 transitions, 65 flow. Second operand 3 states and 2671 transitions. [2023-11-17 15:37:55,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 36 transitions, 149 flow [2023-11-17 15:37:55,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 36 transitions, 149 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 15:37:55,680 INFO L231 Difference]: Finished difference. Result has 29 places, 34 transitions, 91 flow [2023-11-17 15:37:55,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1966, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=29, PETRI_TRANSITIONS=34} [2023-11-17 15:37:55,680 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2023-11-17 15:37:55,680 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 34 transitions, 91 flow [2023-11-17 15:37:55,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 880.0) internal successors, (2640), 3 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:55,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:37:55,683 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:37:55,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 15:37:55,683 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 15:37:55,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:37:55,684 INFO L85 PathProgramCache]: Analyzing trace with hash 466722528, now seen corresponding path program 1 times [2023-11-17 15:37:55,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:37:55,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060953761] [2023-11-17 15:37:55,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:37:55,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:37:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:37:56,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:37:56,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:37:56,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060953761] [2023-11-17 15:37:56,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060953761] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:37:56,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:37:56,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 15:37:56,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438091599] [2023-11-17 15:37:56,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:37:56,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 15:37:56,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:37:56,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 15:37:56,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-17 15:37:56,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 835 out of 1966 [2023-11-17 15:37:56,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 34 transitions, 91 flow. Second operand has 7 states, 7 states have (on average 836.0) internal successors, (5852), 7 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:56,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:37:56,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 835 of 1966 [2023-11-17 15:37:56,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:37:57,080 INFO L124 PetriNetUnfolderBase]: 63/149 cut-off events. [2023-11-17 15:37:57,080 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2023-11-17 15:37:57,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 149 events. 63/149 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 535 event pairs, 19 based on Foata normal form. 3/142 useless extension candidates. Maximal degree in co-relation 399. Up to 75 conditions per place. [2023-11-17 15:37:57,081 INFO L140 encePairwiseOnDemand]: 1957/1966 looper letters, 43 selfloop transitions, 12 changer transitions 1/56 dead transitions. [2023-11-17 15:37:57,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 56 transitions, 284 flow [2023-11-17 15:37:57,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 15:37:57,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-17 15:37:57,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 5901 transitions. [2023-11-17 15:37:57,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42878942014242116 [2023-11-17 15:37:57,092 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 5901 transitions. [2023-11-17 15:37:57,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 5901 transitions. [2023-11-17 15:37:57,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:37:57,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 5901 transitions. [2023-11-17 15:37:57,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 843.0) internal successors, (5901), 7 states have internal predecessors, (5901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:57,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1966.0) internal successors, (15728), 8 states have internal predecessors, (15728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:57,122 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1966.0) internal successors, (15728), 8 states have internal predecessors, (15728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:57,122 INFO L175 Difference]: Start difference. First operand has 29 places, 34 transitions, 91 flow. Second operand 7 states and 5901 transitions. [2023-11-17 15:37:57,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 56 transitions, 284 flow [2023-11-17 15:37:57,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 56 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:37:57,124 INFO L231 Difference]: Finished difference. Result has 37 places, 40 transitions, 151 flow [2023-11-17 15:37:57,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1966, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=151, PETRI_PLACES=37, PETRI_TRANSITIONS=40} [2023-11-17 15:37:57,125 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2023-11-17 15:37:57,125 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 40 transitions, 151 flow [2023-11-17 15:37:57,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 836.0) internal successors, (5852), 7 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:57,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:37:57,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:37:57,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 15:37:57,127 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 15:37:57,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:37:57,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1576904718, now seen corresponding path program 1 times [2023-11-17 15:37:57,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:37:57,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500115771] [2023-11-17 15:37:57,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:37:57,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:37:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:37:57,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:37:57,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:37:57,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500115771] [2023-11-17 15:37:57,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500115771] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:37:57,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:37:57,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 15:37:57,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926153672] [2023-11-17 15:37:57,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:37:57,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 15:37:57,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:37:57,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 15:37:57,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-17 15:37:57,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 870 out of 1966 [2023-11-17 15:37:57,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 40 transitions, 151 flow. Second operand has 6 states, 6 states have (on average 871.5) internal successors, (5229), 6 states have internal predecessors, (5229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:57,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:37:57,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 870 of 1966 [2023-11-17 15:37:57,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:37:58,520 INFO L124 PetriNetUnfolderBase]: 63/157 cut-off events. [2023-11-17 15:37:58,520 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2023-11-17 15:37:58,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 157 events. 63/157 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 579 event pairs, 20 based on Foata normal form. 8/157 useless extension candidates. Maximal degree in co-relation 498. Up to 75 conditions per place. [2023-11-17 15:37:58,521 INFO L140 encePairwiseOnDemand]: 1961/1966 looper letters, 28 selfloop transitions, 7 changer transitions 13/48 dead transitions. [2023-11-17 15:37:58,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 48 transitions, 277 flow [2023-11-17 15:37:58,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:37:58,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:37:58,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4392 transitions. [2023-11-17 15:37:58,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.446795523906409 [2023-11-17 15:37:58,529 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 4392 transitions. [2023-11-17 15:37:58,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 4392 transitions. [2023-11-17 15:37:58,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:37:58,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 4392 transitions. [2023-11-17 15:37:58,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 878.4) internal successors, (4392), 5 states have internal predecessors, (4392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:58,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1966.0) internal successors, (11796), 6 states have internal predecessors, (11796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:58,548 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1966.0) internal successors, (11796), 6 states have internal predecessors, (11796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:58,548 INFO L175 Difference]: Start difference. First operand has 37 places, 40 transitions, 151 flow. Second operand 5 states and 4392 transitions. [2023-11-17 15:37:58,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 48 transitions, 277 flow [2023-11-17 15:37:58,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 48 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:37:58,550 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 136 flow [2023-11-17 15:37:58,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1966, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2023-11-17 15:37:58,550 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2023-11-17 15:37:58,550 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 136 flow [2023-11-17 15:37:58,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 871.5) internal successors, (5229), 6 states have internal predecessors, (5229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:58,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:37:58,552 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:37:58,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 15:37:58,552 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 15:37:58,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:37:58,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1843025202, now seen corresponding path program 2 times [2023-11-17 15:37:58,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:37:58,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696950076] [2023-11-17 15:37:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:37:58,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:37:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:37:59,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:37:59,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:37:59,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696950076] [2023-11-17 15:37:59,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696950076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:37:59,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:37:59,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 15:37:59,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739677635] [2023-11-17 15:37:59,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:37:59,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 15:37:59,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:37:59,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 15:37:59,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-17 15:37:59,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 830 out of 1966 [2023-11-17 15:37:59,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 136 flow. Second operand has 8 states, 8 states have (on average 831.125) internal successors, (6649), 8 states have internal predecessors, (6649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:37:59,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:37:59,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 830 of 1966 [2023-11-17 15:37:59,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:38:00,077 INFO L124 PetriNetUnfolderBase]: 21/61 cut-off events. [2023-11-17 15:38:00,077 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2023-11-17 15:38:00,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 61 events. 21/61 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 122 event pairs, 12 based on Foata normal form. 4/56 useless extension candidates. Maximal degree in co-relation 194. Up to 46 conditions per place. [2023-11-17 15:38:00,077 INFO L140 encePairwiseOnDemand]: 1959/1966 looper letters, 26 selfloop transitions, 4 changer transitions 9/39 dead transitions. [2023-11-17 15:38:00,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 39 transitions, 227 flow [2023-11-17 15:38:00,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 15:38:00,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-17 15:38:00,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 5850 transitions. [2023-11-17 15:38:00,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42508356343554715 [2023-11-17 15:38:00,087 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 5850 transitions. [2023-11-17 15:38:00,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 5850 transitions. [2023-11-17 15:38:00,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:38:00,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 5850 transitions. [2023-11-17 15:38:00,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 835.7142857142857) internal successors, (5850), 7 states have internal predecessors, (5850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:38:00,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1966.0) internal successors, (15728), 8 states have internal predecessors, (15728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:38:00,109 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1966.0) internal successors, (15728), 8 states have internal predecessors, (15728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:38:00,109 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 136 flow. Second operand 7 states and 5850 transitions. [2023-11-17 15:38:00,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 39 transitions, 227 flow [2023-11-17 15:38:00,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 39 transitions, 203 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-11-17 15:38:00,113 INFO L231 Difference]: Finished difference. Result has 42 places, 30 transitions, 95 flow [2023-11-17 15:38:00,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1966, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=95, PETRI_PLACES=42, PETRI_TRANSITIONS=30} [2023-11-17 15:38:00,115 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2023-11-17 15:38:00,115 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 30 transitions, 95 flow [2023-11-17 15:38:00,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 831.125) internal successors, (6649), 8 states have internal predecessors, (6649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:38:00,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:38:00,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:38:00,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 15:38:00,117 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 15:38:00,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:38:00,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1541296192, now seen corresponding path program 1 times [2023-11-17 15:38:00,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:38:00,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608754340] [2023-11-17 15:38:00,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:38:00,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:38:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:38:00,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:38:00,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:38:00,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608754340] [2023-11-17 15:38:00,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608754340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:38:00,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:38:00,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 15:38:00,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906597359] [2023-11-17 15:38:00,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:38:00,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 15:38:00,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:38:00,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 15:38:00,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-17 15:38:00,471 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 843 out of 1966 [2023-11-17 15:38:00,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 95 flow. Second operand has 7 states, 7 states have (on average 844.2857142857143) internal successors, (5910), 7 states have internal predecessors, (5910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:38:00,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:38:00,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 843 of 1966 [2023-11-17 15:38:00,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:38:01,526 INFO L124 PetriNetUnfolderBase]: 15/41 cut-off events. [2023-11-17 15:38:01,526 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-11-17 15:38:01,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 41 events. 15/41 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 2 based on Foata normal form. 3/36 useless extension candidates. Maximal degree in co-relation 115. Up to 15 conditions per place. [2023-11-17 15:38:01,527 INFO L140 encePairwiseOnDemand]: 1955/1966 looper letters, 21 selfloop transitions, 10 changer transitions 0/31 dead transitions. [2023-11-17 15:38:01,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 31 transitions, 159 flow [2023-11-17 15:38:01,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 15:38:01,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-17 15:38:01,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5090 transitions. [2023-11-17 15:38:01,535 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4315022041369956 [2023-11-17 15:38:01,535 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 5090 transitions. [2023-11-17 15:38:01,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 5090 transitions. [2023-11-17 15:38:01,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:38:01,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 5090 transitions. [2023-11-17 15:38:01,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 848.3333333333334) internal successors, (5090), 6 states have internal predecessors, (5090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:38:01,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1966.0) internal successors, (13762), 7 states have internal predecessors, (13762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:38:01,553 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1966.0) internal successors, (13762), 7 states have internal predecessors, (13762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:38:01,553 INFO L175 Difference]: Start difference. First operand has 42 places, 30 transitions, 95 flow. Second operand 6 states and 5090 transitions. [2023-11-17 15:38:01,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 31 transitions, 159 flow [2023-11-17 15:38:01,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 31 transitions, 133 flow, removed 5 selfloop flow, removed 9 redundant places. [2023-11-17 15:38:01,554 INFO L231 Difference]: Finished difference. Result has 33 places, 30 transitions, 93 flow [2023-11-17 15:38:01,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1966, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=93, PETRI_PLACES=33, PETRI_TRANSITIONS=30} [2023-11-17 15:38:01,554 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2023-11-17 15:38:01,555 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 30 transitions, 93 flow [2023-11-17 15:38:01,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 844.2857142857143) internal successors, (5910), 7 states have internal predecessors, (5910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:38:01,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:38:01,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:38:01,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 15:38:01,556 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 15:38:01,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:38:01,556 INFO L85 PathProgramCache]: Analyzing trace with hash 577351186, now seen corresponding path program 1 times [2023-11-17 15:38:01,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:38:01,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590275262] [2023-11-17 15:38:01,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:38:01,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:38:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:38:02,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:38:02,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:38:02,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590275262] [2023-11-17 15:38:02,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590275262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:38:02,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:38:02,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 15:38:02,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207513723] [2023-11-17 15:38:02,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:38:02,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 15:38:02,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:38:02,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 15:38:02,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-17 15:38:02,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 838 out of 1966 [2023-11-17 15:38:02,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 93 flow. Second operand has 8 states, 8 states have (on average 839.375) internal successors, (6715), 8 states have internal predecessors, (6715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:38:02,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:38:02,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 838 of 1966 [2023-11-17 15:38:02,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:38:02,786 INFO L124 PetriNetUnfolderBase]: 11/33 cut-off events. [2023-11-17 15:38:02,786 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-11-17 15:38:02,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 33 events. 11/33 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 2 based on Foata normal form. 4/29 useless extension candidates. Maximal degree in co-relation 85. Up to 15 conditions per place. [2023-11-17 15:38:02,787 INFO L140 encePairwiseOnDemand]: 1956/1966 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2023-11-17 15:38:02,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 29 transitions, 145 flow [2023-11-17 15:38:02,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 15:38:02,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-17 15:38:02,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5058 transitions. [2023-11-17 15:38:02,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42878942014242116 [2023-11-17 15:38:02,794 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 5058 transitions. [2023-11-17 15:38:02,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 5058 transitions. [2023-11-17 15:38:02,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:38:02,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 5058 transitions. [2023-11-17 15:38:02,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 843.0) internal successors, (5058), 6 states have internal predecessors, (5058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:38:02,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1966.0) internal successors, (13762), 7 states have internal predecessors, (13762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:38:02,810 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1966.0) internal successors, (13762), 7 states have internal predecessors, (13762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:38:02,810 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 93 flow. Second operand 6 states and 5058 transitions. [2023-11-17 15:38:02,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 29 transitions, 145 flow [2023-11-17 15:38:02,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 119 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-11-17 15:38:02,811 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2023-11-17 15:38:02,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1966, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2023-11-17 15:38:02,811 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2023-11-17 15:38:02,811 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2023-11-17 15:38:02,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 839.375) internal successors, (6715), 8 states have internal predecessors, (6715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:38:02,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-17 15:38:02,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-11-17 15:38:02,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-17 15:38:02,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-17 15:38:02,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-11-17 15:38:02,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-17 15:38:02,815 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-11-17 15:38:02,818 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 15:38:02,818 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 15:38:02,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:38:02 BasicIcfg [2023-11-17 15:38:02,822 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 15:38:02,822 INFO L158 Benchmark]: Toolchain (without parser) took 430302.61ms. Allocated memory was 254.8MB in the beginning and 451.9MB in the end (delta: 197.1MB). Free memory was 205.4MB in the beginning and 126.5MB in the end (delta: 78.9MB). Peak memory consumption was 276.5MB. Max. memory is 8.0GB. [2023-11-17 15:38:02,822 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 175.1MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 15:38:02,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4273.20ms. Allocated memory is still 254.8MB. Free memory was 205.4MB in the beginning and 97.3MB in the end (delta: 108.1MB). Peak memory consumption was 137.9MB. Max. memory is 8.0GB. [2023-11-17 15:38:02,823 INFO L158 Benchmark]: Boogie Procedure Inliner took 180.71ms. Allocated memory was 254.8MB in the beginning and 376.4MB in the end (delta: 121.6MB). Free memory was 97.3MB in the beginning and 310.0MB in the end (delta: -212.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-11-17 15:38:02,823 INFO L158 Benchmark]: Boogie Preprocessor took 59.50ms. Allocated memory is still 376.4MB. Free memory was 310.0MB in the beginning and 303.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-11-17 15:38:02,823 INFO L158 Benchmark]: RCFGBuilder took 1138.16ms. Allocated memory is still 376.4MB. Free memory was 303.7MB in the beginning and 227.2MB in the end (delta: 76.6MB). Peak memory consumption was 76.5MB. Max. memory is 8.0GB. [2023-11-17 15:38:02,823 INFO L158 Benchmark]: TraceAbstraction took 424639.00ms. Allocated memory was 376.4MB in the beginning and 451.9MB in the end (delta: 75.5MB). Free memory was 226.6MB in the beginning and 126.5MB in the end (delta: 100.1MB). Peak memory consumption was 175.6MB. Max. memory is 8.0GB. [2023-11-17 15:38:02,825 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 175.1MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4273.20ms. Allocated memory is still 254.8MB. Free memory was 205.4MB in the beginning and 97.3MB in the end (delta: 108.1MB). Peak memory consumption was 137.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 180.71ms. Allocated memory was 254.8MB in the beginning and 376.4MB in the end (delta: 121.6MB). Free memory was 97.3MB in the beginning and 310.0MB in the end (delta: -212.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 59.50ms. Allocated memory is still 376.4MB. Free memory was 310.0MB in the beginning and 303.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1138.16ms. Allocated memory is still 376.4MB. Free memory was 303.7MB in the beginning and 227.2MB in the end (delta: 76.6MB). Peak memory consumption was 76.5MB. Max. memory is 8.0GB. * TraceAbstraction took 424639.00ms. Allocated memory was 376.4MB in the beginning and 451.9MB in the end (delta: 75.5MB). Free memory was 226.6MB in the beginning and 126.5MB in the end (delta: 100.1MB). Peak memory consumption was 175.6MB. 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 414.9s, 889 PlacesBefore, 33 PlacesAfterwards, 931 TransitionsBefore, 45 TransitionsAfterwards, 26542 CoEnabledTransitionPairs, 11 FixpointIterations, 635 TrivialSequentialCompositions, 250 ConcurrentSequentialCompositions, 86 TrivialYvCompositions, 23 ConcurrentYvCompositions, 30 ChoiceCompositions, 1024 TotalNumberOfCompositions, 20888 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18676, independent: 18579, independent conditional: 0, independent unconditional: 18579, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 37, unknown conditional: 0, unknown unconditional: 37] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16918, independent: 16888, independent conditional: 0, independent unconditional: 16888, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16918, independent: 16888, independent conditional: 0, independent unconditional: 16888, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12210, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1765, dependent conditional: 0, dependent unconditional: 1765, unknown: 10445, unknown conditional: 0, unknown unconditional: 10445] ], Cache Queries: [ total: 18676, independent: 1691, independent conditional: 0, independent unconditional: 1691, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 16950, unknown conditional: 0, unknown unconditional: 16950] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2 - 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, 1141 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 424.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 415.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 160 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 160 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 760 IncrementalHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 0 mSDtfsCounter, 760 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=151occurred in iteration=3, InterpolantAutomatonStates: 36, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 597 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-17 15:38:02,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...