/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_current.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 15:30:55,581 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 15:30:55,651 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 15:30:55,677 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 15:30:55,678 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 15:30:55,679 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 15:30:55,679 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 15:30:55,679 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 15:30:55,680 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 15:30:55,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 15:30:55,684 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 15:30:55,684 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 15:30:55,684 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 15:30:55,685 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 15:30:55,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 15:30:55,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 15:30:55,685 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 15:30:55,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 15:30:55,686 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 15:30:55,686 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 15:30:55,686 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 15:30:55,687 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 15:30:55,687 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 15:30:55,687 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 15:30:55,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 15:30:55,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:30:55,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 15:30:55,688 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 15:30:55,688 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 15:30:55,688 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 15:30:55,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 15:30:55,689 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 15:30:55,689 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 15:30:55,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 15:30:55,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 15:30:55,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 15:30:55,924 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 15:30:55,924 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 15:30:55,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2023-11-17 15:30:57,024 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 15:30:57,352 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 15:30:57,353 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2023-11-17 15:30:57,385 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa157c95a/2347757c86a840b7a95cfa590aa55ff9/FLAGec1c9631f [2023-11-17 15:30:57,399 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa157c95a/2347757c86a840b7a95cfa590aa55ff9 [2023-11-17 15:30:57,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 15:30:57,403 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 15:30:57,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 15:30:57,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 15:30:57,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 15:30:57,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:30:57" (1/1) ... [2023-11-17 15:30:57,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6685d46e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:57, skipping insertion in model container [2023-11-17 15:30:57,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:30:57" (1/1) ... [2023-11-17 15:30:57,494 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 15:30:57,781 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i[5469,5482] [2023-11-17 15:31:00,472 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-17 15:31:00,811 WARN L1588 CHandler]: Possible shadowing of function iminor [2023-11-17 15:31:00,812 WARN L1588 CHandler]: Possible shadowing of function iminor [2023-11-17 15:31:00,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:31:00,853 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 15:31:00,863 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i[5469,5482] [2023-11-17 15:31:00,922 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 15:31:00,923 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 15:31:00,923 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 15:31:00,924 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 15:31:00,965 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-17 15:31:01,036 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-17 15:31:01,060 WARN L1588 CHandler]: Possible shadowing of function iminor [2023-11-17 15:31:01,060 WARN L1588 CHandler]: Possible shadowing of function iminor [2023-11-17 15:31:01,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:31:01,444 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:31:01,445 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:31:01,445 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:31:01,445 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:31:01,445 WARN L675 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:31:01,446 WARN L675 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:31:01,446 WARN L675 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:31:01,451 INFO L206 MainTranslator]: Completed translation [2023-11-17 15:31:01,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:01 WrapperNode [2023-11-17 15:31:01,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 15:31:01,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 15:31:01,453 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 15:31:01,453 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 15:31:01,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:01" (1/1) ... [2023-11-17 15:31:01,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:01" (1/1) ... [2023-11-17 15:31:01,583 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 49, statements flattened = 640 [2023-11-17 15:31:01,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 15:31:01,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 15:31:01,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 15:31:01,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 15:31:01,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:01" (1/1) ... [2023-11-17 15:31:01,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:01" (1/1) ... [2023-11-17 15:31:01,610 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:01" (1/1) ... [2023-11-17 15:31:01,611 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:01" (1/1) ... [2023-11-17 15:31:01,632 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:01" (1/1) ... [2023-11-17 15:31:01,648 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:01" (1/1) ... [2023-11-17 15:31:01,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:01" (1/1) ... [2023-11-17 15:31:01,654 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:01" (1/1) ... [2023-11-17 15:31:01,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 15:31:01,677 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 15:31:01,677 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 15:31:01,677 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 15:31:01,678 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:01" (1/1) ... [2023-11-17 15:31:01,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:31:01,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:31:01,730 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 15:31:01,767 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 15:31:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 15:31:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 15:31:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 15:31:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-17 15:31:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-11-17 15:31:01,782 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-11-17 15:31:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 15:31:01,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 15:31:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2023-11-17 15:31:01,782 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2023-11-17 15:31:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-17 15:31:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 15:31:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-17 15:31:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 15:31:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 15:31:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-17 15:31:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 15:31:01,784 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 15:31:02,138 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 15:31:02,140 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 15:31:02,666 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 15:31:02,681 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 15:31:02,681 INFO L307 CfgBuilder]: Removed 21 assume(true) statements. [2023-11-17 15:31:02,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:31:02 BoogieIcfgContainer [2023-11-17 15:31:02,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 15:31:02,684 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 15:31:02,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 15:31:02,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 15:31:02,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:30:57" (1/3) ... [2023-11-17 15:31:02,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b7bdb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:31:02, skipping insertion in model container [2023-11-17 15:31:02,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:01" (2/3) ... [2023-11-17 15:31:02,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b7bdb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:31:02, skipping insertion in model container [2023-11-17 15:31:02,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:31:02" (3/3) ... [2023-11-17 15:31:02,688 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2023-11-17 15:31:02,701 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 15:31:02,701 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-17 15:31:02,701 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 15:31:02,766 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-17 15:31:02,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 748 places, 784 transitions, 1582 flow [2023-11-17 15:31:02,964 INFO L124 PetriNetUnfolderBase]: 43/782 cut-off events. [2023-11-17 15:31:02,965 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-17 15:31:02,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 782 events. 43/782 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 932 event pairs, 0 based on Foata normal form. 0/736 useless extension candidates. Maximal degree in co-relation 730. Up to 9 conditions per place. [2023-11-17 15:31:02,971 INFO L82 GeneralOperation]: Start removeDead. Operand has 748 places, 784 transitions, 1582 flow [2023-11-17 15:31:02,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 737 places, 773 transitions, 1555 flow [2023-11-17 15:31:02,980 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:31:02,988 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 737 places, 773 transitions, 1555 flow [2023-11-17 15:31:02,990 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 737 places, 773 transitions, 1555 flow [2023-11-17 15:31:02,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 737 places, 773 transitions, 1555 flow [2023-11-17 15:31:03,086 INFO L124 PetriNetUnfolderBase]: 43/773 cut-off events. [2023-11-17 15:31:03,087 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 15:31:03,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 773 events. 43/773 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 868 event pairs, 0 based on Foata normal form. 0/727 useless extension candidates. Maximal degree in co-relation 730. Up to 9 conditions per place. [2023-11-17 15:31:03,093 INFO L119 LiptonReduction]: Number of co-enabled transitions 6002 [2023-11-17 15:32:05,408 WARN L293 SmtUtils]: Spent 7.81s on a formula simplification that was a NOOP. DAG size: 315 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:32:12,509 WARN L293 SmtUtils]: Spent 7.10s 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 15:32:21,865 WARN L293 SmtUtils]: Spent 9.35s on a formula simplification that was a NOOP. DAG size: 318 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:32:29,550 WARN L293 SmtUtils]: Spent 7.68s on a formula simplification that was a NOOP. DAG size: 284 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:33:51,364 WARN L293 SmtUtils]: Spent 1.36m on a formula simplification. DAG size of input: 635 DAG size of output: 633 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:34:29,328 WARN L293 SmtUtils]: Spent 37.95s 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 15:37:26,310 WARN L293 SmtUtils]: Spent 2.95m on a formula simplification. DAG size of input: 638 DAG size of output: 636 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:38:50,206 WARN L293 SmtUtils]: Spent 1.40m on a formula simplification that was a NOOP. DAG size: 576 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:38:53,773 INFO L134 LiptonReduction]: Checked pairs total: 6098 [2023-11-17 15:38:53,773 INFO L136 LiptonReduction]: Total number of compositions: 857 [2023-11-17 15:38:53,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:38:53,797 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;@4277e376, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:38:53,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-17 15:38:53,818 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:38:53,818 INFO L124 PetriNetUnfolderBase]: 6/12 cut-off events. [2023-11-17 15:38:53,819 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:38:53,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:38:53,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-17 15:38:53,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-17 15:38:53,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:38:53,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2740188, now seen corresponding path program 1 times [2023-11-17 15:38:53,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:38:53,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629766462] [2023-11-17 15:38:53,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:38:53,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:38:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:38:54,427 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 15:38:54,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:38:54,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629766462] [2023-11-17 15:38:54,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629766462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:38:54,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:38:54,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 15:38:54,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664965386] [2023-11-17 15:38:54,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:38:54,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 15:38:54,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:38:54,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 15:38:54,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 15:38:54,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 1641 [2023-11-17 15:38:54,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 48 transitions, 105 flow. Second operand has 2 states, 2 states have (on average 753.5) internal successors, (1507), 2 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states 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 15:38:54,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:38:54,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 1641 [2023-11-17 15:38:54,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:38:54,822 INFO L124 PetriNetUnfolderBase]: 79/159 cut-off events. [2023-11-17 15:38:54,823 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-17 15:38:54,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 159 events. 79/159 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 460 event pairs, 69 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 256. Up to 160 conditions per place. [2023-11-17 15:38:54,826 INFO L140 encePairwiseOnDemand]: 1629/1641 looper letters, 36 selfloop transitions, 0 changer transitions 0/36 dead transitions. [2023-11-17 15:38:54,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 153 flow [2023-11-17 15:38:54,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 15:38:54,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-17 15:38:54,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1552 transitions. [2023-11-17 15:38:54,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4728823887873248 [2023-11-17 15:38:54,852 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1552 transitions. [2023-11-17 15:38:54,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1552 transitions. [2023-11-17 15:38:54,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:38:54,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1552 transitions. [2023-11-17 15:38:54,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 776.0) internal successors, (1552), 2 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states 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 15:38:54,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1641.0) internal successors, (4923), 3 states have internal predecessors, (4923), 0 states have call successors, (0), 0 states 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 15:38:54,883 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1641.0) internal successors, (4923), 3 states have internal predecessors, (4923), 0 states have call successors, (0), 0 states 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 15:38:54,885 INFO L175 Difference]: Start difference. First operand has 34 places, 48 transitions, 105 flow. Second operand 2 states and 1552 transitions. [2023-11-17 15:38:54,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 153 flow [2023-11-17 15:38:54,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 36 transitions, 148 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-17 15:38:54,888 INFO L231 Difference]: Finished difference. Result has 31 places, 36 transitions, 76 flow [2023-11-17 15:38:54,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1641, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=76, PETRI_PLACES=31, PETRI_TRANSITIONS=36} [2023-11-17 15:38:54,892 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2023-11-17 15:38:54,892 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 36 transitions, 76 flow [2023-11-17 15:38:54,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 753.5) internal successors, (1507), 2 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states 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 15:38:54,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:38:54,894 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-17 15:38:54,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 15:38:54,894 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-17 15:38:54,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:38:54,900 INFO L85 PathProgramCache]: Analyzing trace with hash 38957566, now seen corresponding path program 1 times [2023-11-17 15:38:54,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:38:54,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990161383] [2023-11-17 15:38:54,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:38:54,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:38:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:38:55,315 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 15:38:55,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:38:55,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990161383] [2023-11-17 15:38:55,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990161383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:38:55,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:38:55,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 15:38:55,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93901469] [2023-11-17 15:38:55,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:38:55,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:38:55,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:38:55,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:38:55,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:38:55,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 720 out of 1641 [2023-11-17 15:38:55,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 36 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 722.0) internal successors, (2166), 3 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states 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 15:38:55,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:38:55,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 720 of 1641 [2023-11-17 15:38:55,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:38:55,944 INFO L124 PetriNetUnfolderBase]: 100/197 cut-off events. [2023-11-17 15:38:55,946 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-17 15:38:55,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 197 events. 100/197 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 669 event pairs, 50 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 411. Up to 147 conditions per place. [2023-11-17 15:38:55,949 INFO L140 encePairwiseOnDemand]: 1636/1641 looper letters, 39 selfloop transitions, 4 changer transitions 1/44 dead transitions. [2023-11-17 15:38:55,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 44 transitions, 182 flow [2023-11-17 15:38:55,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:38:55,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:38:55,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2205 transitions. [2023-11-17 15:38:55,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44789762340036565 [2023-11-17 15:38:55,958 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2205 transitions. [2023-11-17 15:38:55,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2205 transitions. [2023-11-17 15:38:55,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:38:55,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2205 transitions. [2023-11-17 15:38:55,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 735.0) internal successors, (2205), 3 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states 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 15:38:55,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1641.0) internal successors, (6564), 4 states have internal predecessors, (6564), 0 states have call successors, (0), 0 states 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 15:38:55,971 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1641.0) internal successors, (6564), 4 states have internal predecessors, (6564), 0 states have call successors, (0), 0 states 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 15:38:55,972 INFO L175 Difference]: Start difference. First operand has 31 places, 36 transitions, 76 flow. Second operand 3 states and 2205 transitions. [2023-11-17 15:38:55,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 44 transitions, 182 flow [2023-11-17 15:38:55,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 44 transitions, 182 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 15:38:55,973 INFO L231 Difference]: Finished difference. Result has 35 places, 39 transitions, 106 flow [2023-11-17 15:38:55,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1641, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=35, PETRI_TRANSITIONS=39} [2023-11-17 15:38:55,974 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2023-11-17 15:38:55,974 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 39 transitions, 106 flow [2023-11-17 15:38:55,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 722.0) internal successors, (2166), 3 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states 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 15:38:55,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:38:55,976 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:38:55,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 15:38:55,977 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-17 15:38:55,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:38:55,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1207685418, now seen corresponding path program 1 times [2023-11-17 15:38:55,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:38:55,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650084988] [2023-11-17 15:38:55,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:38:55,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:38:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:38:56,591 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 15:38:56,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:38:56,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650084988] [2023-11-17 15:38:56,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650084988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:38:56,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:38:56,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 15:38:56,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778838142] [2023-11-17 15:38:56,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:38:56,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 15:38:56,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:38:56,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 15:38:56,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-17 15:38:56,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 704 out of 1641 [2023-11-17 15:38:56,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 39 transitions, 106 flow. Second operand has 7 states, 7 states have (on average 705.0) internal successors, (4935), 7 states have internal predecessors, (4935), 0 states have call successors, (0), 0 states 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 15:38:56,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:38:56,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 704 of 1641 [2023-11-17 15:38:56,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:38:57,177 INFO L124 PetriNetUnfolderBase]: 178/352 cut-off events. [2023-11-17 15:38:57,177 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2023-11-17 15:38:57,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 352 events. 178/352 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1475 event pairs, 77 based on Foata normal form. 9/317 useless extension candidates. Maximal degree in co-relation 913. Up to 144 conditions per place. [2023-11-17 15:38:57,179 INFO L140 encePairwiseOnDemand]: 1632/1641 looper letters, 56 selfloop transitions, 11 changer transitions 4/71 dead transitions. [2023-11-17 15:38:57,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 71 transitions, 346 flow [2023-11-17 15:38:57,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 15:38:57,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-17 15:38:57,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4998 transitions. [2023-11-17 15:38:57,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4351005484460695 [2023-11-17 15:38:57,189 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4998 transitions. [2023-11-17 15:38:57,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4998 transitions. [2023-11-17 15:38:57,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:38:57,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4998 transitions. [2023-11-17 15:38:57,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states 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 15:38:57,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1641.0) internal successors, (13128), 8 states have internal predecessors, (13128), 0 states have call successors, (0), 0 states 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 15:38:57,214 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1641.0) internal successors, (13128), 8 states have internal predecessors, (13128), 0 states have call successors, (0), 0 states 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 15:38:57,214 INFO L175 Difference]: Start difference. First operand has 35 places, 39 transitions, 106 flow. Second operand 7 states and 4998 transitions. [2023-11-17 15:38:57,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 71 transitions, 346 flow [2023-11-17 15:38:57,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 71 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 15:38:57,216 INFO L231 Difference]: Finished difference. Result has 43 places, 45 transitions, 169 flow [2023-11-17 15:38:57,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1641, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=169, PETRI_PLACES=43, PETRI_TRANSITIONS=45} [2023-11-17 15:38:57,217 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2023-11-17 15:38:57,217 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 45 transitions, 169 flow [2023-11-17 15:38:57,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 705.0) internal successors, (4935), 7 states have internal predecessors, (4935), 0 states have call successors, (0), 0 states 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 15:38:57,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:38:57,219 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:38:57,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 15:38:57,219 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-17 15:38:57,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:38:57,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1203517225, now seen corresponding path program 1 times [2023-11-17 15:38:57,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:38:57,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948865757] [2023-11-17 15:38:57,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:38:57,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:38:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:38:57,465 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 15:38:57,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:38:57,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948865757] [2023-11-17 15:38:57,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948865757] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:38:57,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:38:57,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 15:38:57,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005650659] [2023-11-17 15:38:57,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:38:57,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:38:57,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:38:57,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:38:57,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:38:57,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 726 out of 1641 [2023-11-17 15:38:57,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 45 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 728.3333333333334) internal successors, (2185), 3 states have internal predecessors, (2185), 0 states have call successors, (0), 0 states 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 15:38:57,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:38:57,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 726 of 1641 [2023-11-17 15:38:57,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:38:57,743 INFO L124 PetriNetUnfolderBase]: 178/353 cut-off events. [2023-11-17 15:38:57,744 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2023-11-17 15:38:57,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1034 conditions, 353 events. 178/353 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1382 event pairs, 133 based on Foata normal form. 2/313 useless extension candidates. Maximal degree in co-relation 1026. Up to 353 conditions per place. [2023-11-17 15:38:57,745 INFO L140 encePairwiseOnDemand]: 1637/1641 looper letters, 44 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2023-11-17 15:38:57,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 46 transitions, 263 flow [2023-11-17 15:38:57,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:38:57,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:38:57,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2217 transitions. [2023-11-17 15:38:57,750 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45033516148689823 [2023-11-17 15:38:57,750 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2217 transitions. [2023-11-17 15:38:57,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2217 transitions. [2023-11-17 15:38:57,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:38:57,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2217 transitions. [2023-11-17 15:38:57,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 739.0) internal successors, (2217), 3 states have internal predecessors, (2217), 0 states have call successors, (0), 0 states 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 15:38:57,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1641.0) internal successors, (6564), 4 states have internal predecessors, (6564), 0 states have call successors, (0), 0 states 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 15:38:57,759 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1641.0) internal successors, (6564), 4 states have internal predecessors, (6564), 0 states have call successors, (0), 0 states 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 15:38:57,759 INFO L175 Difference]: Start difference. First operand has 43 places, 45 transitions, 169 flow. Second operand 3 states and 2217 transitions. [2023-11-17 15:38:57,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 46 transitions, 263 flow [2023-11-17 15:38:57,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 46 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:38:57,762 INFO L231 Difference]: Finished difference. Result has 45 places, 46 transitions, 180 flow [2023-11-17 15:38:57,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1641, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=45, PETRI_TRANSITIONS=46} [2023-11-17 15:38:57,762 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 11 predicate places. [2023-11-17 15:38:57,762 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 46 transitions, 180 flow [2023-11-17 15:38:57,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 728.3333333333334) internal successors, (2185), 3 states have internal predecessors, (2185), 0 states have call successors, (0), 0 states 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 15:38:57,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:38:57,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:38:57,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 15:38:57,764 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-17 15:38:57,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:38:57,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1251950412, now seen corresponding path program 1 times [2023-11-17 15:38:57,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:38:57,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327685537] [2023-11-17 15:38:57,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:38:57,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:38:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:38:58,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:38:58,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:38:58,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327685537] [2023-11-17 15:38:58,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327685537] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:38:58,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857712867] [2023-11-17 15:38:58,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:38:58,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:38:58,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:38:58,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 15:38:58,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-17 15:38:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:38:58,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-17 15:38:58,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:38:58,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 15:38:58,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 15:38:58,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857712867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:38:58,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-17 15:38:58,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-11-17 15:38:58,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707696243] [2023-11-17 15:38:58,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:38:58,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:38:58,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:38:58,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:38:58,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-17 15:38:58,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 704 out of 1641 [2023-11-17 15:38:58,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 46 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 706.6666666666666) internal successors, (2120), 3 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states 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 15:38:58,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:38:58,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 704 of 1641 [2023-11-17 15:38:58,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:38:58,831 INFO L124 PetriNetUnfolderBase]: 169/342 cut-off events. [2023-11-17 15:38:58,831 INFO L125 PetriNetUnfolderBase]: For 317/317 co-relation queries the response was YES. [2023-11-17 15:38:58,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 995 conditions, 342 events. 169/342 cut-off events. For 317/317 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1382 event pairs, 83 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 985. Up to 268 conditions per place. [2023-11-17 15:38:58,833 INFO L140 encePairwiseOnDemand]: 1637/1641 looper letters, 42 selfloop transitions, 4 changer transitions 16/62 dead transitions. [2023-11-17 15:38:58,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 62 transitions, 391 flow [2023-11-17 15:38:58,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:38:58,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:38:58,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2158 transitions. [2023-11-17 15:38:58,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4383505992281129 [2023-11-17 15:38:58,837 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2158 transitions. [2023-11-17 15:38:58,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2158 transitions. [2023-11-17 15:38:58,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:38:58,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2158 transitions. [2023-11-17 15:38:58,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 719.3333333333334) internal successors, (2158), 3 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states 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 15:38:58,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1641.0) internal successors, (6564), 4 states have internal predecessors, (6564), 0 states have call successors, (0), 0 states 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 15:38:58,846 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1641.0) internal successors, (6564), 4 states have internal predecessors, (6564), 0 states have call successors, (0), 0 states 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 15:38:58,846 INFO L175 Difference]: Start difference. First operand has 45 places, 46 transitions, 180 flow. Second operand 3 states and 2158 transitions. [2023-11-17 15:38:58,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 62 transitions, 391 flow [2023-11-17 15:38:58,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 62 transitions, 387 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-17 15:38:58,849 INFO L231 Difference]: Finished difference. Result has 47 places, 42 transitions, 166 flow [2023-11-17 15:38:58,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1641, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=47, PETRI_TRANSITIONS=42} [2023-11-17 15:38:58,850 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 13 predicate places. [2023-11-17 15:38:58,850 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 42 transitions, 166 flow [2023-11-17 15:38:58,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 706.6666666666666) internal successors, (2120), 3 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states 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 15:38:58,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:38:58,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:38:58,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-17 15:38:59,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:38:59,058 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-17 15:38:59,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:38:59,058 INFO L85 PathProgramCache]: Analyzing trace with hash -878767624, now seen corresponding path program 1 times [2023-11-17 15:38:59,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:38:59,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620370558] [2023-11-17 15:38:59,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:38:59,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:38:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:38:59,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:38:59,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:38:59,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620370558] [2023-11-17 15:38:59,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620370558] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:38:59,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965912636] [2023-11-17 15:38:59,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:38:59,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:38:59,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:38:59,433 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 15:38:59,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-17 15:38:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:38:59,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-17 15:38:59,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:38:59,868 INFO L349 Elim1Store]: treesize reduction 55, result has 32.1 percent of original size [2023-11-17 15:38:59,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 329 treesize of output 340 [2023-11-17 15:39:00,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-17 15:39:00,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 15:39:00,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 15:39:00,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965912636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:39:00,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-17 15:39:00,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2023-11-17 15:39:00,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339055191] [2023-11-17 15:39:00,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:39:00,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 15:39:00,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:39:00,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 15:39:00,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-17 15:39:00,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 696 out of 1641 [2023-11-17 15:39:00,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 42 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 697.6666666666666) internal successors, (4186), 6 states have internal predecessors, (4186), 0 states have call successors, (0), 0 states 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 15:39:00,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:39:00,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 696 of 1641 [2023-11-17 15:39:00,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:39:01,062 INFO L124 PetriNetUnfolderBase]: 76/189 cut-off events. [2023-11-17 15:39:01,062 INFO L125 PetriNetUnfolderBase]: For 195/195 co-relation queries the response was YES. [2023-11-17 15:39:01,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 189 events. 76/189 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 716 event pairs, 15 based on Foata normal form. 16/197 useless extension candidates. Maximal degree in co-relation 612. Up to 68 conditions per place. [2023-11-17 15:39:01,063 INFO L140 encePairwiseOnDemand]: 1635/1641 looper letters, 29 selfloop transitions, 4 changer transitions 22/55 dead transitions. [2023-11-17 15:39:01,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 328 flow [2023-11-17 15:39:01,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 15:39:01,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-17 15:39:01,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4227 transitions. [2023-11-17 15:39:01,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4293113954905545 [2023-11-17 15:39:01,071 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4227 transitions. [2023-11-17 15:39:01,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4227 transitions. [2023-11-17 15:39:01,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:39:01,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4227 transitions. [2023-11-17 15:39:01,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 704.5) internal successors, (4227), 6 states have internal predecessors, (4227), 0 states have call successors, (0), 0 states 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 15:39:01,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1641.0) internal successors, (11487), 7 states have internal predecessors, (11487), 0 states have call successors, (0), 0 states 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 15:39:01,100 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1641.0) internal successors, (11487), 7 states have internal predecessors, (11487), 0 states have call successors, (0), 0 states 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 15:39:01,100 INFO L175 Difference]: Start difference. First operand has 47 places, 42 transitions, 166 flow. Second operand 6 states and 4227 transitions. [2023-11-17 15:39:01,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 328 flow [2023-11-17 15:39:01,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 55 transitions, 300 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-11-17 15:39:01,105 INFO L231 Difference]: Finished difference. Result has 46 places, 31 transitions, 97 flow [2023-11-17 15:39:01,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1641, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=97, PETRI_PLACES=46, PETRI_TRANSITIONS=31} [2023-11-17 15:39:01,107 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 12 predicate places. [2023-11-17 15:39:01,107 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 31 transitions, 97 flow [2023-11-17 15:39:01,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 697.6666666666666) internal successors, (4186), 6 states have internal predecessors, (4186), 0 states have call successors, (0), 0 states 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 15:39:01,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:39:01,109 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:39:01,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-17 15:39:01,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-17 15:39:01,318 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-17 15:39:01,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:39:01,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1134028578, now seen corresponding path program 1 times [2023-11-17 15:39:01,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:39:01,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907679856] [2023-11-17 15:39:01,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:39:01,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:39:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:39:01,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 15:39:01,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:39:01,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907679856] [2023-11-17 15:39:01,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907679856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:39:01,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:39:01,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 15:39:01,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148618042] [2023-11-17 15:39:01,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:39:01,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 15:39:01,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:39:01,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 15:39:01,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-17 15:39:01,802 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 685 out of 1641 [2023-11-17 15:39:01,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 31 transitions, 97 flow. Second operand has 7 states, 7 states have (on average 686.4285714285714) internal successors, (4805), 7 states have internal predecessors, (4805), 0 states have call successors, (0), 0 states 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 15:39:01,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:39:01,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 685 of 1641 [2023-11-17 15:39:01,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:39:02,926 INFO L124 PetriNetUnfolderBase]: 11/34 cut-off events. [2023-11-17 15:39:02,926 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-17 15:39:02,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 34 events. 11/34 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 2 based on Foata normal form. 7/32 useless extension candidates. Maximal degree in co-relation 89. Up to 16 conditions per place. [2023-11-17 15:39:02,926 INFO L140 encePairwiseOnDemand]: 1631/1641 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2023-11-17 15:39:02,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 153 flow [2023-11-17 15:39:02,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 15:39:02,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-17 15:39:02,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4140 transitions. [2023-11-17 15:39:02,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42047531992687387 [2023-11-17 15:39:02,933 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4140 transitions. [2023-11-17 15:39:02,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4140 transitions. [2023-11-17 15:39:02,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:39:02,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4140 transitions. [2023-11-17 15:39:02,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 690.0) internal successors, (4140), 6 states have internal predecessors, (4140), 0 states have call successors, (0), 0 states 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 15:39:02,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1641.0) internal successors, (11487), 7 states have internal predecessors, (11487), 0 states have call successors, (0), 0 states 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 15:39:02,948 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1641.0) internal successors, (11487), 7 states have internal predecessors, (11487), 0 states have call successors, (0), 0 states 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 15:39:02,948 INFO L175 Difference]: Start difference. First operand has 46 places, 31 transitions, 97 flow. Second operand 6 states and 4140 transitions. [2023-11-17 15:39:02,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 153 flow [2023-11-17 15:39:02,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 129 flow, removed 2 selfloop flow, removed 10 redundant places. [2023-11-17 15:39:02,949 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2023-11-17 15:39:02,949 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1641, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2023-11-17 15:39:02,949 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2023-11-17 15:39:02,949 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2023-11-17 15:39:02,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 686.4285714285714) internal successors, (4805), 7 states have internal predecessors, (4805), 0 states have call successors, (0), 0 states 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 15:39:02,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-11-17 15:39:02,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-11-17 15:39:02,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-11-17 15:39:02,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-11-17 15:39:02,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-11-17 15:39:02,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-11-17 15:39:02,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-11-17 15:39:02,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-17 15:39:02,953 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:39:02,957 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 15:39:02,957 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 15:39:02,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:39:02 BasicIcfg [2023-11-17 15:39:02,959 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 15:39:02,959 INFO L158 Benchmark]: Toolchain (without parser) took 485556.53ms. Allocated memory was 230.7MB in the beginning and 480.2MB in the end (delta: 249.6MB). Free memory was 164.7MB in the beginning and 202.8MB in the end (delta: -38.1MB). Peak memory consumption was 212.5MB. Max. memory is 8.0GB. [2023-11-17 15:39:02,959 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 191.9MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 15:39:02,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4046.95ms. Allocated memory was 230.7MB in the beginning and 331.4MB in the end (delta: 100.7MB). Free memory was 164.1MB in the beginning and 174.4MB in the end (delta: -10.2MB). Peak memory consumption was 99.3MB. Max. memory is 8.0GB. [2023-11-17 15:39:02,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.27ms. Allocated memory is still 331.4MB. Free memory was 174.4MB in the beginning and 163.4MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-11-17 15:39:02,960 INFO L158 Benchmark]: Boogie Preprocessor took 68.22ms. Allocated memory is still 331.4MB. Free memory was 163.4MB in the beginning and 157.6MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-11-17 15:39:02,960 INFO L158 Benchmark]: RCFGBuilder took 1005.93ms. Allocated memory is still 331.4MB. Free memory was 157.6MB in the beginning and 202.4MB in the end (delta: -44.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-11-17 15:39:02,960 INFO L158 Benchmark]: TraceAbstraction took 480274.72ms. Allocated memory was 331.4MB in the beginning and 480.2MB in the end (delta: 148.9MB). Free memory was 201.8MB in the beginning and 202.8MB in the end (delta: -934.4kB). Peak memory consumption was 148.0MB. Max. memory is 8.0GB. [2023-11-17 15:39:02,961 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 191.9MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4046.95ms. Allocated memory was 230.7MB in the beginning and 331.4MB in the end (delta: 100.7MB). Free memory was 164.1MB in the beginning and 174.4MB in the end (delta: -10.2MB). Peak memory consumption was 99.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 131.27ms. Allocated memory is still 331.4MB. Free memory was 174.4MB in the beginning and 163.4MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 68.22ms. Allocated memory is still 331.4MB. Free memory was 163.4MB in the beginning and 157.6MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1005.93ms. Allocated memory is still 331.4MB. Free memory was 157.6MB in the beginning and 202.4MB in the end (delta: -44.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 480274.72ms. Allocated memory was 331.4MB in the beginning and 480.2MB in the end (delta: 148.9MB). Free memory was 201.8MB in the beginning and 202.8MB in the end (delta: -934.4kB). Peak memory consumption was 148.0MB. 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: 470.8s, 737 PlacesBefore, 34 PlacesAfterwards, 773 TransitionsBefore, 48 TransitionsAfterwards, 6002 CoEnabledTransitionPairs, 11 FixpointIterations, 636 TrivialSequentialCompositions, 96 ConcurrentSequentialCompositions, 84 TrivialYvCompositions, 19 ConcurrentYvCompositions, 22 ChoiceCompositions, 857 TotalNumberOfCompositions, 6098 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5297, independent: 5181, independent conditional: 0, independent unconditional: 5181, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4081, independent: 4055, independent conditional: 0, independent unconditional: 4055, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4081, independent: 4043, independent conditional: 0, independent unconditional: 4043, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5325, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 3311, dependent conditional: 0, dependent unconditional: 3311, unknown: 2006, unknown conditional: 0, unknown unconditional: 2006] ], Cache Queries: [ total: 5297, independent: 1126, independent conditional: 0, independent unconditional: 1126, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 4081, unknown conditional: 0, unknown unconditional: 4081] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 174]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 174]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 174]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 837 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 480.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 471.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 717 IncrementalHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 0 mSDtfsCounter, 717 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=4, InterpolantAutomatonStates: 30, 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: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 338 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1180 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 3/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-17 15:39:02,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...