/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 --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 11:31:48,191 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 11:31:48,265 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 11:31:48,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 11:31:48,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 11:31:48,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 11:31:48,305 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 11:31:48,305 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 11:31:48,306 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 11:31:48,309 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 11:31:48,310 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 11:31:48,310 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 11:31:48,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 11:31:48,312 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 11:31:48,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 11:31:48,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 11:31:48,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 11:31:48,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 11:31:48,313 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 11:31:48,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 11:31:48,313 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 11:31:48,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 11:31:48,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 11:31:48,314 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 11:31:48,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 11:31:48,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:31:48,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 11:31:48,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 11:31:48,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 11:31:48,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 11:31:48,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 11:31:48,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 11:31:48,317 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 11:31:48,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 11:31:48,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 11:31:48,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 11:31:48,581 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 11:31:48,581 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 11:31:48,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2023-11-17 11:31:49,764 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 11:31:50,210 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 11:31:50,211 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2023-11-17 11:31:50,253 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6697fec5/7e9a1d87b035474bb9635e8ad2af1f3e/FLAG691bbbefe [2023-11-17 11:31:50,272 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6697fec5/7e9a1d87b035474bb9635e8ad2af1f3e [2023-11-17 11:31:50,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 11:31:50,278 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 11:31:50,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 11:31:50,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 11:31:50,285 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 11:31:50,286 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:31:50" (1/1) ... [2023-11-17 11:31:50,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@166cdbe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:31:50, skipping insertion in model container [2023-11-17 11:31:50,287 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:31:50" (1/1) ... [2023-11-17 11:31:50,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 11:31:50,756 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_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2023-11-17 11:31:56,557 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-17 11:31:57,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:31:57,480 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 11:31:57,493 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_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2023-11-17 11:31:57,686 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 11:31:57,688 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 11:31:57,688 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 11:31:57,689 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 11:31:57,887 WARN L635 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-11-17 11:31:57,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-17 11:31:57,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:31:58,303 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:31:58,303 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:31:58,304 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:31:58,304 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:31:58,304 WARN L675 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:31:58,304 WARN L675 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:31:58,304 WARN L675 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:31:58,311 INFO L206 MainTranslator]: Completed translation [2023-11-17 11:31:58,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:31:58 WrapperNode [2023-11-17 11:31:58,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 11:31:58,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 11:31:58,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 11:31:58,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 11:31:58,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:31:58" (1/1) ... [2023-11-17 11:31:58,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:31:58" (1/1) ... [2023-11-17 11:31:58,479 INFO L138 Inliner]: procedures = 1354, calls = 1468, calls flagged for inlining = 347, calls inlined = 18, statements flattened = 377 [2023-11-17 11:31:58,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 11:31:58,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 11:31:58,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 11:31:58,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 11:31:58,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:31:58" (1/1) ... [2023-11-17 11:31:58,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:31:58" (1/1) ... [2023-11-17 11:31:58,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:31:58" (1/1) ... [2023-11-17 11:31:58,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:31:58" (1/1) ... [2023-11-17 11:31:58,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:31:58" (1/1) ... [2023-11-17 11:31:58,552 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:31:58" (1/1) ... [2023-11-17 11:31:58,556 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:31:58" (1/1) ... [2023-11-17 11:31:58,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:31:58" (1/1) ... [2023-11-17 11:31:58,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 11:31:58,566 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 11:31:58,566 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 11:31:58,566 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 11:31:58,567 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:31:58" (1/1) ... [2023-11-17 11:31:58,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:31:58,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:31:58,592 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 11:31:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 11:31:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 11:31:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 11:31:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 11:31:58,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 11:31:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-17 11:31:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 11:31:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 11:31:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2023-11-17 11:31:58,630 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2023-11-17 11:31:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 11:31:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 11:31:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 11:31:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-17 11:31:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2023-11-17 11:31:58,631 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2023-11-17 11:31:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 11:31:58,616 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 11:31:58,633 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 11:31:59,081 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 11:31:59,084 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 11:31:59,559 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 11:32:00,098 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 11:32:00,098 INFO L307 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-17 11:32:00,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:32:00 BoogieIcfgContainer [2023-11-17 11:32:00,100 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 11:32:00,103 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 11:32:00,103 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 11:32:00,107 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 11:32:00,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:31:50" (1/3) ... [2023-11-17 11:32:00,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36111b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:32:00, skipping insertion in model container [2023-11-17 11:32:00,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:31:58" (2/3) ... [2023-11-17 11:32:00,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36111b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:32:00, skipping insertion in model container [2023-11-17 11:32:00,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:32:00" (3/3) ... [2023-11-17 11:32:00,109 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2023-11-17 11:32:00,126 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 11:32:00,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-17 11:32:00,127 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 11:32:00,197 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-17 11:32:00,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 53 transitions, 120 flow [2023-11-17 11:32:00,273 INFO L124 PetriNetUnfolderBase]: 10/51 cut-off events. [2023-11-17 11:32:00,274 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-17 11:32:00,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 51 events. 10/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 47. Up to 4 conditions per place. [2023-11-17 11:32:00,286 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 53 transitions, 120 flow [2023-11-17 11:32:00,293 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 49 transitions, 107 flow [2023-11-17 11:32:00,296 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:32:00,312 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 49 transitions, 107 flow [2023-11-17 11:32:00,316 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 49 transitions, 107 flow [2023-11-17 11:32:00,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 49 transitions, 107 flow [2023-11-17 11:32:00,338 INFO L124 PetriNetUnfolderBase]: 10/49 cut-off events. [2023-11-17 11:32:00,338 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 11:32:00,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 49 events. 10/49 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 91 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 47. Up to 4 conditions per place. [2023-11-17 11:32:00,340 INFO L119 LiptonReduction]: Number of co-enabled transitions 1134 [2023-11-17 11:32:06,377 INFO L134 LiptonReduction]: Checked pairs total: 2391 [2023-11-17 11:32:06,378 INFO L136 LiptonReduction]: Total number of compositions: 52 [2023-11-17 11:32:06,398 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:32:06,406 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;@7a38245f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:32:06,406 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-17 11:32:06,468 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:32:06,468 INFO L124 PetriNetUnfolderBase]: 5/17 cut-off events. [2023-11-17 11:32:06,468 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 11:32:06,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:06,469 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-17 11:32:06,470 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:06,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:06,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1935418573, now seen corresponding path program 1 times [2023-11-17 11:32:06,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:06,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36803476] [2023-11-17 11:32:06,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:06,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:07,644 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 11:32:07,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:07,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36803476] [2023-11-17 11:32:07,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36803476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:32:07,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:32:07,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:32:07,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937222555] [2023-11-17 11:32:07,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:07,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:32:07,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:07,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:32:07,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:32:07,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 105 [2023-11-17 11:32:07,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 23 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states 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 11:32:07,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:07,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 105 [2023-11-17 11:32:07,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:08,117 INFO L124 PetriNetUnfolderBase]: 211/320 cut-off events. [2023-11-17 11:32:08,117 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-17 11:32:08,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 320 events. 211/320 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 889 event pairs, 89 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 594. Up to 286 conditions per place. [2023-11-17 11:32:08,126 INFO L140 encePairwiseOnDemand]: 100/105 looper letters, 28 selfloop transitions, 4 changer transitions 3/35 dead transitions. [2023-11-17 11:32:08,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 35 transitions, 152 flow [2023-11-17 11:32:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:32:08,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:32:08,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2023-11-17 11:32:08,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.21904761904761905 [2023-11-17 11:32:08,138 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 69 transitions. [2023-11-17 11:32:08,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 69 transitions. [2023-11-17 11:32:08,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:08,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 69 transitions. [2023-11-17 11:32:08,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 11:32:08,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states 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 11:32:08,152 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states 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 11:32:08,154 INFO L175 Difference]: Start difference. First operand has 24 places, 23 transitions, 55 flow. Second operand 3 states and 69 transitions. [2023-11-17 11:32:08,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 35 transitions, 152 flow [2023-11-17 11:32:08,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 35 transitions, 146 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-17 11:32:08,159 INFO L231 Difference]: Finished difference. Result has 24 places, 26 transitions, 76 flow [2023-11-17 11:32:08,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=24, PETRI_TRANSITIONS=26} [2023-11-17 11:32:08,163 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2023-11-17 11:32:08,164 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 26 transitions, 76 flow [2023-11-17 11:32:08,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states 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 11:32:08,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:08,164 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:08,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 11:32:08,165 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:08,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:08,173 INFO L85 PathProgramCache]: Analyzing trace with hash 131563551, now seen corresponding path program 1 times [2023-11-17 11:32:08,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:08,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809069384] [2023-11-17 11:32:08,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:08,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:08,985 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 11:32:08,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:08,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809069384] [2023-11-17 11:32:08,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809069384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:32:08,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:32:08,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 11:32:08,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227972340] [2023-11-17 11:32:08,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:08,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 11:32:08,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:08,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 11:32:08,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-17 11:32:08,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 105 [2023-11-17 11:32:08,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 26 transitions, 76 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 11:32:08,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:08,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 105 [2023-11-17 11:32:08,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:09,723 INFO L124 PetriNetUnfolderBase]: 196/300 cut-off events. [2023-11-17 11:32:09,723 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-11-17 11:32:09,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 300 events. 196/300 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 859 event pairs, 40 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 454. Up to 135 conditions per place. [2023-11-17 11:32:09,729 INFO L140 encePairwiseOnDemand]: 98/105 looper letters, 31 selfloop transitions, 9 changer transitions 8/48 dead transitions. [2023-11-17 11:32:09,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 48 transitions, 228 flow [2023-11-17 11:32:09,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 11:32:09,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 11:32:09,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 102 transitions. [2023-11-17 11:32:09,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.19428571428571428 [2023-11-17 11:32:09,732 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 102 transitions. [2023-11-17 11:32:09,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 102 transitions. [2023-11-17 11:32:09,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:09,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 102 transitions. [2023-11-17 11:32:09,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states 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 11:32:09,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 0 states have call successors, (0), 0 states 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 11:32:09,735 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 0 states have call successors, (0), 0 states 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 11:32:09,735 INFO L175 Difference]: Start difference. First operand has 24 places, 26 transitions, 76 flow. Second operand 5 states and 102 transitions. [2023-11-17 11:32:09,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 48 transitions, 228 flow [2023-11-17 11:32:09,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 48 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 11:32:09,737 INFO L231 Difference]: Finished difference. Result has 28 places, 26 transitions, 103 flow [2023-11-17 11:32:09,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=103, PETRI_PLACES=28, PETRI_TRANSITIONS=26} [2023-11-17 11:32:09,738 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 4 predicate places. [2023-11-17 11:32:09,738 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 26 transitions, 103 flow [2023-11-17 11:32:09,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 11:32:09,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:09,739 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:09,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 11:32:09,739 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:09,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:09,739 INFO L85 PathProgramCache]: Analyzing trace with hash 479982662, now seen corresponding path program 1 times [2023-11-17 11:32:09,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:09,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059441249] [2023-11-17 11:32:09,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:09,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:10,317 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 11:32:10,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:10,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059441249] [2023-11-17 11:32:10,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059441249] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:32:10,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:32:10,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:32:10,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583616627] [2023-11-17 11:32:10,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:10,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:32:10,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:10,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:32:10,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:32:10,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 105 [2023-11-17 11:32:10,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states 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 11:32:10,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:10,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 105 [2023-11-17 11:32:10,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:10,613 INFO L124 PetriNetUnfolderBase]: 149/245 cut-off events. [2023-11-17 11:32:10,614 INFO L125 PetriNetUnfolderBase]: For 154/154 co-relation queries the response was YES. [2023-11-17 11:32:10,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 673 conditions, 245 events. 149/245 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 672 event pairs, 66 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 302. Up to 210 conditions per place. [2023-11-17 11:32:10,616 INFO L140 encePairwiseOnDemand]: 101/105 looper letters, 23 selfloop transitions, 5 changer transitions 10/38 dead transitions. [2023-11-17 11:32:10,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 38 transitions, 221 flow [2023-11-17 11:32:10,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:32:10,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:32:10,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2023-11-17 11:32:10,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2126984126984127 [2023-11-17 11:32:10,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 67 transitions. [2023-11-17 11:32:10,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 67 transitions. [2023-11-17 11:32:10,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:10,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 67 transitions. [2023-11-17 11:32:10,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 11:32:10,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states 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 11:32:10,622 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states 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 11:32:10,622 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 103 flow. Second operand 3 states and 67 transitions. [2023-11-17 11:32:10,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 38 transitions, 221 flow [2023-11-17 11:32:10,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 38 transitions, 211 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 11:32:10,624 INFO L231 Difference]: Finished difference. Result has 29 places, 23 transitions, 106 flow [2023-11-17 11:32:10,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2023-11-17 11:32:10,625 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 5 predicate places. [2023-11-17 11:32:10,625 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 106 flow [2023-11-17 11:32:10,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states 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 11:32:10,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:10,626 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:10,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 11:32:10,626 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:10,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:10,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1017778557, now seen corresponding path program 1 times [2023-11-17 11:32:10,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:10,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535828941] [2023-11-17 11:32:10,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:10,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:12,683 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 11:32:12,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:12,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535828941] [2023-11-17 11:32:12,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535828941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:32:12,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:32:12,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:32:12,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586658722] [2023-11-17 11:32:12,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:12,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:32:12,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:12,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:32:12,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:32:12,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 105 [2023-11-17 11:32:12,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 106 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 11:32:12,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:12,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 105 [2023-11-17 11:32:12,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:13,695 INFO L124 PetriNetUnfolderBase]: 168/300 cut-off events. [2023-11-17 11:32:13,695 INFO L125 PetriNetUnfolderBase]: For 370/370 co-relation queries the response was YES. [2023-11-17 11:32:13,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 914 conditions, 300 events. 168/300 cut-off events. For 370/370 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1083 event pairs, 41 based on Foata normal form. 4/304 useless extension candidates. Maximal degree in co-relation 552. Up to 132 conditions per place. [2023-11-17 11:32:13,697 INFO L140 encePairwiseOnDemand]: 93/105 looper letters, 41 selfloop transitions, 15 changer transitions 6/62 dead transitions. [2023-11-17 11:32:13,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 62 transitions, 398 flow [2023-11-17 11:32:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 11:32:13,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-17 11:32:13,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 129 transitions. [2023-11-17 11:32:13,699 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.17551020408163265 [2023-11-17 11:32:13,699 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 129 transitions. [2023-11-17 11:32:13,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 129 transitions. [2023-11-17 11:32:13,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:13,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 129 transitions. [2023-11-17 11:32:13,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 0 states have call successors, (0), 0 states 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 11:32:13,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 105.0) internal successors, (840), 8 states have internal predecessors, (840), 0 states have call successors, (0), 0 states 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 11:32:13,703 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 105.0) internal successors, (840), 8 states have internal predecessors, (840), 0 states have call successors, (0), 0 states 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 11:32:13,703 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 106 flow. Second operand 7 states and 129 transitions. [2023-11-17 11:32:13,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 62 transitions, 398 flow [2023-11-17 11:32:13,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 62 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 11:32:13,706 INFO L231 Difference]: Finished difference. Result has 37 places, 35 transitions, 232 flow [2023-11-17 11:32:13,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=232, PETRI_PLACES=37, PETRI_TRANSITIONS=35} [2023-11-17 11:32:13,707 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 13 predicate places. [2023-11-17 11:32:13,707 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 35 transitions, 232 flow [2023-11-17 11:32:13,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 11:32:13,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:13,708 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:13,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 11:32:13,708 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:13,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:13,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1244593709, now seen corresponding path program 2 times [2023-11-17 11:32:13,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:13,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54933382] [2023-11-17 11:32:13,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:13,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:15,708 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 11:32:15,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:15,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54933382] [2023-11-17 11:32:15,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54933382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:32:15,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:32:15,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:32:15,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69181092] [2023-11-17 11:32:15,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:15,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:32:15,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:15,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:32:15,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:32:15,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 105 [2023-11-17 11:32:15,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 232 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 11:32:15,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:15,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 105 [2023-11-17 11:32:15,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:17,200 INFO L124 PetriNetUnfolderBase]: 282/484 cut-off events. [2023-11-17 11:32:17,200 INFO L125 PetriNetUnfolderBase]: For 803/803 co-relation queries the response was YES. [2023-11-17 11:32:17,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1881 conditions, 484 events. 282/484 cut-off events. For 803/803 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1888 event pairs, 29 based on Foata normal form. 18/502 useless extension candidates. Maximal degree in co-relation 1101. Up to 154 conditions per place. [2023-11-17 11:32:17,203 INFO L140 encePairwiseOnDemand]: 92/105 looper letters, 47 selfloop transitions, 34 changer transitions 24/105 dead transitions. [2023-11-17 11:32:17,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 105 transitions, 903 flow [2023-11-17 11:32:17,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 11:32:17,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-17 11:32:17,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2023-11-17 11:32:17,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.18306878306878308 [2023-11-17 11:32:17,206 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 173 transitions. [2023-11-17 11:32:17,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 173 transitions. [2023-11-17 11:32:17,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:17,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 173 transitions. [2023-11-17 11:32:17,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 19.22222222222222) internal successors, (173), 9 states have internal predecessors, (173), 0 states have call successors, (0), 0 states 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 11:32:17,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 11:32:17,210 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 11:32:17,210 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 232 flow. Second operand 9 states and 173 transitions. [2023-11-17 11:32:17,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 105 transitions, 903 flow [2023-11-17 11:32:17,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 105 transitions, 866 flow, removed 12 selfloop flow, removed 1 redundant places. [2023-11-17 11:32:17,228 INFO L231 Difference]: Finished difference. Result has 50 places, 57 transitions, 487 flow [2023-11-17 11:32:17,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=487, PETRI_PLACES=50, PETRI_TRANSITIONS=57} [2023-11-17 11:32:17,230 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 26 predicate places. [2023-11-17 11:32:17,230 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 57 transitions, 487 flow [2023-11-17 11:32:17,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 11:32:17,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:17,231 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:17,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 11:32:17,231 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:17,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:17,232 INFO L85 PathProgramCache]: Analyzing trace with hash 630664011, now seen corresponding path program 3 times [2023-11-17 11:32:17,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:17,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722138849] [2023-11-17 11:32:17,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:17,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:18,690 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 11:32:18,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:18,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722138849] [2023-11-17 11:32:18,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722138849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:32:18,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:32:18,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 11:32:18,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182767473] [2023-11-17 11:32:18,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:18,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 11:32:18,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:18,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 11:32:18,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-17 11:32:18,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 105 [2023-11-17 11:32:18,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 57 transitions, 487 flow. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 11:32:18,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:18,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 105 [2023-11-17 11:32:18,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:19,664 INFO L124 PetriNetUnfolderBase]: 253/447 cut-off events. [2023-11-17 11:32:19,665 INFO L125 PetriNetUnfolderBase]: For 1624/1624 co-relation queries the response was YES. [2023-11-17 11:32:19,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2152 conditions, 447 events. 253/447 cut-off events. For 1624/1624 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1783 event pairs, 35 based on Foata normal form. 4/451 useless extension candidates. Maximal degree in co-relation 1552. Up to 180 conditions per place. [2023-11-17 11:32:19,669 INFO L140 encePairwiseOnDemand]: 93/105 looper letters, 50 selfloop transitions, 35 changer transitions 6/91 dead transitions. [2023-11-17 11:32:19,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 91 transitions, 897 flow [2023-11-17 11:32:19,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 11:32:19,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-17 11:32:19,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2023-11-17 11:32:19,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.17142857142857143 [2023-11-17 11:32:19,671 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 126 transitions. [2023-11-17 11:32:19,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 126 transitions. [2023-11-17 11:32:19,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:19,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 126 transitions. [2023-11-17 11:32:19,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 11:32:19,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 105.0) internal successors, (840), 8 states have internal predecessors, (840), 0 states have call successors, (0), 0 states 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 11:32:19,673 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 105.0) internal successors, (840), 8 states have internal predecessors, (840), 0 states have call successors, (0), 0 states 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 11:32:19,674 INFO L175 Difference]: Start difference. First operand has 50 places, 57 transitions, 487 flow. Second operand 7 states and 126 transitions. [2023-11-17 11:32:19,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 91 transitions, 897 flow [2023-11-17 11:32:19,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 91 transitions, 877 flow, removed 10 selfloop flow, removed 0 redundant places. [2023-11-17 11:32:19,683 INFO L231 Difference]: Finished difference. Result has 59 places, 61 transitions, 617 flow [2023-11-17 11:32:19,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=617, PETRI_PLACES=59, PETRI_TRANSITIONS=61} [2023-11-17 11:32:19,684 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 35 predicate places. [2023-11-17 11:32:19,684 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 61 transitions, 617 flow [2023-11-17 11:32:19,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 11:32:19,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:19,685 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:19,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 11:32:19,685 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:19,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:19,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1365633809, now seen corresponding path program 4 times [2023-11-17 11:32:19,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:19,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666106241] [2023-11-17 11:32:19,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:19,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:20,962 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 11:32:20,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:20,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666106241] [2023-11-17 11:32:20,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666106241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:32:20,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:32:20,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:32:20,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174374176] [2023-11-17 11:32:20,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:20,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-17 11:32:20,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:20,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-17 11:32:20,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-17 11:32:20,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 105 [2023-11-17 11:32:20,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 61 transitions, 617 flow. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states 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 11:32:20,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:20,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 105 [2023-11-17 11:32:20,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:21,789 INFO L124 PetriNetUnfolderBase]: 271/474 cut-off events. [2023-11-17 11:32:21,790 INFO L125 PetriNetUnfolderBase]: For 2450/2450 co-relation queries the response was YES. [2023-11-17 11:32:21,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2548 conditions, 474 events. 271/474 cut-off events. For 2450/2450 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1907 event pairs, 30 based on Foata normal form. 4/478 useless extension candidates. Maximal degree in co-relation 2210. Up to 175 conditions per place. [2023-11-17 11:32:21,794 INFO L140 encePairwiseOnDemand]: 93/105 looper letters, 55 selfloop transitions, 41 changer transitions 4/100 dead transitions. [2023-11-17 11:32:21,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 100 transitions, 1098 flow [2023-11-17 11:32:21,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:32:21,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:32:21,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 134 transitions. [2023-11-17 11:32:21,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1595238095238095 [2023-11-17 11:32:21,797 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 134 transitions. [2023-11-17 11:32:21,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 134 transitions. [2023-11-17 11:32:21,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:21,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 134 transitions. [2023-11-17 11:32:21,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 11:32:21,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:32:21,808 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:32:21,808 INFO L175 Difference]: Start difference. First operand has 59 places, 61 transitions, 617 flow. Second operand 8 states and 134 transitions. [2023-11-17 11:32:21,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 100 transitions, 1098 flow [2023-11-17 11:32:21,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 100 transitions, 1061 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-11-17 11:32:21,820 INFO L231 Difference]: Finished difference. Result has 67 places, 68 transitions, 806 flow [2023-11-17 11:32:21,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=806, PETRI_PLACES=67, PETRI_TRANSITIONS=68} [2023-11-17 11:32:21,821 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 43 predicate places. [2023-11-17 11:32:21,821 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 68 transitions, 806 flow [2023-11-17 11:32:21,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states 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 11:32:21,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:21,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:21,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-17 11:32:21,823 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:21,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:21,824 INFO L85 PathProgramCache]: Analyzing trace with hash 641388771, now seen corresponding path program 5 times [2023-11-17 11:32:21,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:21,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663874456] [2023-11-17 11:32:21,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:21,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:23,760 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 11:32:23,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:23,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663874456] [2023-11-17 11:32:23,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663874456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:32:23,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:32:23,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-17 11:32:23,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714142554] [2023-11-17 11:32:23,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:23,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-17 11:32:23,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:23,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-17 11:32:23,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-17 11:32:23,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:32:23,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 68 transitions, 806 flow. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 11:32:23,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:23,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:32:23,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:25,231 INFO L124 PetriNetUnfolderBase]: 474/817 cut-off events. [2023-11-17 11:32:25,231 INFO L125 PetriNetUnfolderBase]: For 6117/6117 co-relation queries the response was YES. [2023-11-17 11:32:25,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5052 conditions, 817 events. 474/817 cut-off events. For 6117/6117 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3832 event pairs, 61 based on Foata normal form. 4/821 useless extension candidates. Maximal degree in co-relation 4430. Up to 383 conditions per place. [2023-11-17 11:32:25,240 INFO L140 encePairwiseOnDemand]: 92/105 looper letters, 90 selfloop transitions, 71 changer transitions 7/168 dead transitions. [2023-11-17 11:32:25,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 168 transitions, 2268 flow [2023-11-17 11:32:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 11:32:25,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-17 11:32:25,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 173 transitions. [2023-11-17 11:32:25,242 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1497835497835498 [2023-11-17 11:32:25,243 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 173 transitions. [2023-11-17 11:32:25,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 173 transitions. [2023-11-17 11:32:25,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:25,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 173 transitions. [2023-11-17 11:32:25,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 15.727272727272727) internal successors, (173), 11 states have internal predecessors, (173), 0 states have call successors, (0), 0 states 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 11:32:25,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states 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 11:32:25,247 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states 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 11:32:25,247 INFO L175 Difference]: Start difference. First operand has 67 places, 68 transitions, 806 flow. Second operand 11 states and 173 transitions. [2023-11-17 11:32:25,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 168 transitions, 2268 flow [2023-11-17 11:32:25,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 168 transitions, 2160 flow, removed 28 selfloop flow, removed 3 redundant places. [2023-11-17 11:32:25,270 INFO L231 Difference]: Finished difference. Result has 81 places, 116 transitions, 1667 flow [2023-11-17 11:32:25,271 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1667, PETRI_PLACES=81, PETRI_TRANSITIONS=116} [2023-11-17 11:32:25,272 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 57 predicate places. [2023-11-17 11:32:25,272 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 116 transitions, 1667 flow [2023-11-17 11:32:25,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 11:32:25,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:25,273 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:25,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-17 11:32:25,273 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:25,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:25,273 INFO L85 PathProgramCache]: Analyzing trace with hash 641692880, now seen corresponding path program 1 times [2023-11-17 11:32:25,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:25,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302622915] [2023-11-17 11:32:25,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:25,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:28,132 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 11:32:28,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:28,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302622915] [2023-11-17 11:32:28,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302622915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:32:28,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:32:28,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-17 11:32:28,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871939937] [2023-11-17 11:32:28,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:28,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-17 11:32:28,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:28,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-17 11:32:28,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-17 11:32:28,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:32:28,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 116 transitions, 1667 flow. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 11:32:28,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:28,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:32:28,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:30,119 INFO L124 PetriNetUnfolderBase]: 512/889 cut-off events. [2023-11-17 11:32:30,119 INFO L125 PetriNetUnfolderBase]: For 8117/8117 co-relation queries the response was YES. [2023-11-17 11:32:30,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5992 conditions, 889 events. 512/889 cut-off events. For 8117/8117 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4295 event pairs, 44 based on Foata normal form. 10/899 useless extension candidates. Maximal degree in co-relation 5513. Up to 409 conditions per place. [2023-11-17 11:32:30,130 INFO L140 encePairwiseOnDemand]: 92/105 looper letters, 77 selfloop transitions, 80 changer transitions 17/174 dead transitions. [2023-11-17 11:32:30,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 174 transitions, 2636 flow [2023-11-17 11:32:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 11:32:30,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-17 11:32:30,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 152 transitions. [2023-11-17 11:32:30,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.14476190476190476 [2023-11-17 11:32:30,132 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 152 transitions. [2023-11-17 11:32:30,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 152 transitions. [2023-11-17 11:32:30,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:30,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 152 transitions. [2023-11-17 11:32:30,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 15.2) internal successors, (152), 10 states have internal predecessors, (152), 0 states have call successors, (0), 0 states 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 11:32:30,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states 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 11:32:30,136 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states 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 11:32:30,137 INFO L175 Difference]: Start difference. First operand has 81 places, 116 transitions, 1667 flow. Second operand 10 states and 152 transitions. [2023-11-17 11:32:30,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 174 transitions, 2636 flow [2023-11-17 11:32:30,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 174 transitions, 2531 flow, removed 21 selfloop flow, removed 2 redundant places. [2023-11-17 11:32:30,177 INFO L231 Difference]: Finished difference. Result has 94 places, 138 transitions, 2157 flow [2023-11-17 11:32:30,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=1576, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2157, PETRI_PLACES=94, PETRI_TRANSITIONS=138} [2023-11-17 11:32:30,178 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 70 predicate places. [2023-11-17 11:32:30,179 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 138 transitions, 2157 flow [2023-11-17 11:32:30,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 11:32:30,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:30,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:30,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-17 11:32:30,180 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:30,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:30,180 INFO L85 PathProgramCache]: Analyzing trace with hash -867404506, now seen corresponding path program 1 times [2023-11-17 11:32:30,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:30,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899083812] [2023-11-17 11:32:30,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:30,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:30,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:32:30,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:30,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899083812] [2023-11-17 11:32:30,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899083812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:32:30,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:32:30,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 11:32:30,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611429752] [2023-11-17 11:32:30,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:30,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 11:32:30,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:30,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 11:32:30,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-17 11:32:30,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 105 [2023-11-17 11:32:30,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 138 transitions, 2157 flow. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 11:32:30,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:30,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 105 [2023-11-17 11:32:30,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:31,705 INFO L124 PetriNetUnfolderBase]: 484/853 cut-off events. [2023-11-17 11:32:31,705 INFO L125 PetriNetUnfolderBase]: For 9623/9623 co-relation queries the response was YES. [2023-11-17 11:32:31,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6261 conditions, 853 events. 484/853 cut-off events. For 9623/9623 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4158 event pairs, 68 based on Foata normal form. 6/859 useless extension candidates. Maximal degree in co-relation 5986. Up to 322 conditions per place. [2023-11-17 11:32:31,717 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 85 selfloop transitions, 81 changer transitions 15/181 dead transitions. [2023-11-17 11:32:31,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 181 transitions, 2995 flow [2023-11-17 11:32:31,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:32:31,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:32:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions. [2023-11-17 11:32:31,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.15119047619047618 [2023-11-17 11:32:31,719 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 127 transitions. [2023-11-17 11:32:31,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 127 transitions. [2023-11-17 11:32:31,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:31,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 127 transitions. [2023-11-17 11:32:31,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 15.875) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states 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 11:32:31,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:32:31,721 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:32:31,722 INFO L175 Difference]: Start difference. First operand has 94 places, 138 transitions, 2157 flow. Second operand 8 states and 127 transitions. [2023-11-17 11:32:31,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 181 transitions, 2995 flow [2023-11-17 11:32:31,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 181 transitions, 2911 flow, removed 36 selfloop flow, removed 3 redundant places. [2023-11-17 11:32:31,780 INFO L231 Difference]: Finished difference. Result has 100 places, 139 transitions, 2301 flow [2023-11-17 11:32:31,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=1989, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2301, PETRI_PLACES=100, PETRI_TRANSITIONS=139} [2023-11-17 11:32:31,781 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 76 predicate places. [2023-11-17 11:32:31,781 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 139 transitions, 2301 flow [2023-11-17 11:32:31,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 11:32:31,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:31,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:31,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-17 11:32:31,782 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:31,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:31,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1485791320, now seen corresponding path program 1 times [2023-11-17 11:32:31,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:31,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553826787] [2023-11-17 11:32:31,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:31,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:35,734 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 11:32:35,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:35,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553826787] [2023-11-17 11:32:35,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553826787] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:32:35,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167458364] [2023-11-17 11:32:35,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:35,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:32:35,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:32:35,743 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 11:32:35,772 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 11:32:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:36,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 62 conjunts are in the unsatisfiable core [2023-11-17 11:32:36,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:32:37,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-11-17 11:32:37,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2023-11-17 11:32:37,796 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 11:32:37,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:32:38,081 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 11:32:38,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167458364] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-17 11:32:38,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-17 11:32:38,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 20 [2023-11-17 11:32:38,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679047063] [2023-11-17 11:32:38,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:38,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 11:32:38,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:38,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 11:32:38,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2023-11-17 11:32:38,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:32:38,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 139 transitions, 2301 flow. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 11:32:38,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:38,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:32:38,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:39,076 INFO L124 PetriNetUnfolderBase]: 481/845 cut-off events. [2023-11-17 11:32:39,076 INFO L125 PetriNetUnfolderBase]: For 11951/11951 co-relation queries the response was YES. [2023-11-17 11:32:39,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6605 conditions, 845 events. 481/845 cut-off events. For 11951/11951 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4013 event pairs, 102 based on Foata normal form. 4/849 useless extension candidates. Maximal degree in co-relation 6398. Up to 514 conditions per place. [2023-11-17 11:32:39,089 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 72 selfloop transitions, 81 changer transitions 4/157 dead transitions. [2023-11-17 11:32:39,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 157 transitions, 2866 flow [2023-11-17 11:32:39,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 11:32:39,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 11:32:39,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2023-11-17 11:32:39,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.16666666666666666 [2023-11-17 11:32:39,090 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 70 transitions. [2023-11-17 11:32:39,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 70 transitions. [2023-11-17 11:32:39,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:39,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 70 transitions. [2023-11-17 11:32:39,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states 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 11:32:39,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 0 states have call successors, (0), 0 states 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 11:32:39,092 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 0 states have call successors, (0), 0 states 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 11:32:39,092 INFO L175 Difference]: Start difference. First operand has 100 places, 139 transitions, 2301 flow. Second operand 4 states and 70 transitions. [2023-11-17 11:32:39,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 157 transitions, 2866 flow [2023-11-17 11:32:39,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 157 transitions, 2787 flow, removed 19 selfloop flow, removed 2 redundant places. [2023-11-17 11:32:39,146 INFO L231 Difference]: Finished difference. Result has 99 places, 147 transitions, 2627 flow [2023-11-17 11:32:39,146 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=2232, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2627, PETRI_PLACES=99, PETRI_TRANSITIONS=147} [2023-11-17 11:32:39,147 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 75 predicate places. [2023-11-17 11:32:39,147 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 147 transitions, 2627 flow [2023-11-17 11:32:39,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 11:32:39,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:39,147 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:39,164 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 11:32:39,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-17 11:32:39,358 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:39,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:39,358 INFO L85 PathProgramCache]: Analyzing trace with hash 316714602, now seen corresponding path program 2 times [2023-11-17 11:32:39,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:39,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840355223] [2023-11-17 11:32:39,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:39,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:41,027 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 11:32:41,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:41,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840355223] [2023-11-17 11:32:41,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840355223] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:32:41,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522358059] [2023-11-17 11:32:41,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 11:32:41,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:32:41,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:32:41,030 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 11:32:41,050 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 11:32:41,775 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 11:32:41,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:32:41,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-17 11:32:41,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:32:42,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 35 [2023-11-17 11:32:42,085 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 11:32:42,085 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:32:42,399 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 11:32:42,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522358059] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:32:42,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:32:42,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:32:42,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907728003] [2023-11-17 11:32:42,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:32:42,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:32:42,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:42,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:32:42,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:32:42,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:32:42,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 147 transitions, 2627 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:32:42,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:42,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:32:42,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:45,100 INFO L124 PetriNetUnfolderBase]: 535/926 cut-off events. [2023-11-17 11:32:45,101 INFO L125 PetriNetUnfolderBase]: For 14154/14154 co-relation queries the response was YES. [2023-11-17 11:32:45,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7609 conditions, 926 events. 535/926 cut-off events. For 14154/14154 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4471 event pairs, 59 based on Foata normal form. 10/936 useless extension candidates. Maximal degree in co-relation 7456. Up to 318 conditions per place. [2023-11-17 11:32:45,114 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 95 selfloop transitions, 103 changer transitions 7/205 dead transitions. [2023-11-17 11:32:45,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 205 transitions, 3693 flow [2023-11-17 11:32:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 11:32:45,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-17 11:32:45,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 194 transitions. [2023-11-17 11:32:45,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.14212454212454212 [2023-11-17 11:32:45,116 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 194 transitions. [2023-11-17 11:32:45,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 194 transitions. [2023-11-17 11:32:45,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:45,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 194 transitions. [2023-11-17 11:32:45,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 14.923076923076923) internal successors, (194), 13 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:32:45,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states 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 11:32:45,119 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states 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 11:32:45,119 INFO L175 Difference]: Start difference. First operand has 99 places, 147 transitions, 2627 flow. Second operand 13 states and 194 transitions. [2023-11-17 11:32:45,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 205 transitions, 3693 flow [2023-11-17 11:32:45,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 205 transitions, 3673 flow, removed 10 selfloop flow, removed 0 redundant places. [2023-11-17 11:32:45,180 INFO L231 Difference]: Finished difference. Result has 116 places, 162 transitions, 3159 flow [2023-11-17 11:32:45,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=2621, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3159, PETRI_PLACES=116, PETRI_TRANSITIONS=162} [2023-11-17 11:32:45,181 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 92 predicate places. [2023-11-17 11:32:45,181 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 162 transitions, 3159 flow [2023-11-17 11:32:45,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:32:45,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:45,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:45,194 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 11:32:45,397 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,SelfDestructingSolverStorable11 [2023-11-17 11:32:45,397 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:45,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:45,398 INFO L85 PathProgramCache]: Analyzing trace with hash -525538366, now seen corresponding path program 2 times [2023-11-17 11:32:45,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:45,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897848641] [2023-11-17 11:32:45,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:45,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:47,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:32:47,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:47,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897848641] [2023-11-17 11:32:47,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897848641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:32:47,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:32:47,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:32:47,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542270180] [2023-11-17 11:32:47,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:47,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:32:47,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:47,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:32:47,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:32:47,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:32:47,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 162 transitions, 3159 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:32:47,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:47,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:32:47,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:48,316 INFO L124 PetriNetUnfolderBase]: 528/915 cut-off events. [2023-11-17 11:32:48,316 INFO L125 PetriNetUnfolderBase]: For 16491/16491 co-relation queries the response was YES. [2023-11-17 11:32:48,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8036 conditions, 915 events. 528/915 cut-off events. For 16491/16491 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4424 event pairs, 166 based on Foata normal form. 2/917 useless extension candidates. Maximal degree in co-relation 7871. Up to 770 conditions per place. [2023-11-17 11:32:48,330 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 150 selfloop transitions, 36 changer transitions 1/187 dead transitions. [2023-11-17 11:32:48,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 187 transitions, 3787 flow [2023-11-17 11:32:48,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:32:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:32:48,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 117 transitions. [2023-11-17 11:32:48,332 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1392857142857143 [2023-11-17 11:32:48,332 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 117 transitions. [2023-11-17 11:32:48,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 117 transitions. [2023-11-17 11:32:48,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:48,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 117 transitions. [2023-11-17 11:32:48,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 11:32:48,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:32:48,334 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:32:48,334 INFO L175 Difference]: Start difference. First operand has 116 places, 162 transitions, 3159 flow. Second operand 8 states and 117 transitions. [2023-11-17 11:32:48,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 187 transitions, 3787 flow [2023-11-17 11:32:48,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 187 transitions, 3561 flow, removed 36 selfloop flow, removed 7 redundant places. [2023-11-17 11:32:48,403 INFO L231 Difference]: Finished difference. Result has 117 places, 165 transitions, 3079 flow [2023-11-17 11:32:48,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=2941, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3079, PETRI_PLACES=117, PETRI_TRANSITIONS=165} [2023-11-17 11:32:48,405 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 93 predicate places. [2023-11-17 11:32:48,405 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 165 transitions, 3079 flow [2023-11-17 11:32:48,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:32:48,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:48,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:48,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-17 11:32:48,405 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:48,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:48,406 INFO L85 PathProgramCache]: Analyzing trace with hash -535859073, now seen corresponding path program 1 times [2023-11-17 11:32:48,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:48,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069755200] [2023-11-17 11:32:48,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:48,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:51,825 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 11:32:51,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:51,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069755200] [2023-11-17 11:32:51,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069755200] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:32:51,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183012194] [2023-11-17 11:32:51,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:51,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:32:51,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:32:51,829 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:32:51,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-17 11:32:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:52,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-17 11:32:52,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:32:52,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 35 [2023-11-17 11:32:52,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:32:52,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 11:32:52,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183012194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:32:52,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-17 11:32:52,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 15 [2023-11-17 11:32:52,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859852658] [2023-11-17 11:32:52,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:52,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:32:52,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:52,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:32:52,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2023-11-17 11:32:52,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:32:52,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 165 transitions, 3079 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:32:52,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:52,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:32:52,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:53,615 INFO L124 PetriNetUnfolderBase]: 568/973 cut-off events. [2023-11-17 11:32:53,615 INFO L125 PetriNetUnfolderBase]: For 16444/16444 co-relation queries the response was YES. [2023-11-17 11:32:53,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8203 conditions, 973 events. 568/973 cut-off events. For 16444/16444 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4725 event pairs, 110 based on Foata normal form. 10/983 useless extension candidates. Maximal degree in co-relation 8042. Up to 501 conditions per place. [2023-11-17 11:32:53,628 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 111 selfloop transitions, 86 changer transitions 3/200 dead transitions. [2023-11-17 11:32:53,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 200 transitions, 3948 flow [2023-11-17 11:32:53,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 11:32:53,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-17 11:32:53,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 138 transitions. [2023-11-17 11:32:53,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.14603174603174604 [2023-11-17 11:32:53,630 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 138 transitions. [2023-11-17 11:32:53,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 138 transitions. [2023-11-17 11:32:53,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:53,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 138 transitions. [2023-11-17 11:32:53,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 15.333333333333334) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 11:32:53,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 11:32:53,632 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 11:32:53,632 INFO L175 Difference]: Start difference. First operand has 117 places, 165 transitions, 3079 flow. Second operand 9 states and 138 transitions. [2023-11-17 11:32:53,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 200 transitions, 3948 flow [2023-11-17 11:32:53,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 200 transitions, 3900 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-11-17 11:32:53,701 INFO L231 Difference]: Finished difference. Result has 125 places, 178 transitions, 3506 flow [2023-11-17 11:32:53,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=3031, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3506, PETRI_PLACES=125, PETRI_TRANSITIONS=178} [2023-11-17 11:32:53,701 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 101 predicate places. [2023-11-17 11:32:53,702 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 178 transitions, 3506 flow [2023-11-17 11:32:53,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:32:53,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:53,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:53,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-17 11:32:53,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:32:53,913 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:53,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:53,914 INFO L85 PathProgramCache]: Analyzing trace with hash -534936946, now seen corresponding path program 3 times [2023-11-17 11:32:53,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:53,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632842437] [2023-11-17 11:32:53,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:53,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:55,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:32:55,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:55,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632842437] [2023-11-17 11:32:55,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632842437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:32:55,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:32:55,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:32:55,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103147247] [2023-11-17 11:32:55,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:55,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:32:55,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:55,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:32:55,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:32:55,515 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:32:55,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 178 transitions, 3506 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:32:55,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:55,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:32:55,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:56,813 INFO L124 PetriNetUnfolderBase]: 566/971 cut-off events. [2023-11-17 11:32:56,813 INFO L125 PetriNetUnfolderBase]: For 17619/17619 co-relation queries the response was YES. [2023-11-17 11:32:56,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8520 conditions, 971 events. 566/971 cut-off events. For 17619/17619 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4695 event pairs, 172 based on Foata normal form. 2/973 useless extension candidates. Maximal degree in co-relation 8352. Up to 828 conditions per place. [2023-11-17 11:32:56,825 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 163 selfloop transitions, 33 changer transitions 4/200 dead transitions. [2023-11-17 11:32:56,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 200 transitions, 4095 flow [2023-11-17 11:32:56,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:32:56,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:32:56,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 115 transitions. [2023-11-17 11:32:56,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13690476190476192 [2023-11-17 11:32:56,827 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 115 transitions. [2023-11-17 11:32:56,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 115 transitions. [2023-11-17 11:32:56,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:56,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 115 transitions. [2023-11-17 11:32:56,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states 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 11:32:56,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:32:56,829 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:32:56,829 INFO L175 Difference]: Start difference. First operand has 125 places, 178 transitions, 3506 flow. Second operand 8 states and 115 transitions. [2023-11-17 11:32:56,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 200 transitions, 4095 flow [2023-11-17 11:32:56,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 200 transitions, 3993 flow, removed 28 selfloop flow, removed 2 redundant places. [2023-11-17 11:32:56,895 INFO L231 Difference]: Finished difference. Result has 130 places, 175 transitions, 3412 flow [2023-11-17 11:32:56,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=3386, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3412, PETRI_PLACES=130, PETRI_TRANSITIONS=175} [2023-11-17 11:32:56,896 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 106 predicate places. [2023-11-17 11:32:56,896 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 175 transitions, 3412 flow [2023-11-17 11:32:56,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:32:56,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:56,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:56,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-17 11:32:56,897 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:56,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:56,897 INFO L85 PathProgramCache]: Analyzing trace with hash -525509103, now seen corresponding path program 2 times [2023-11-17 11:32:56,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:56,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946017878] [2023-11-17 11:32:56,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:56,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:32:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:32:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:32:58,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:32:58,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946017878] [2023-11-17 11:32:58,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946017878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:32:58,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:32:58,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:32:58,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129933595] [2023-11-17 11:32:58,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:32:58,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:32:58,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:32:58,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:32:58,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:32:58,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:32:58,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 175 transitions, 3412 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:32:58,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:32:58,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:32:58,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:32:59,921 INFO L124 PetriNetUnfolderBase]: 576/993 cut-off events. [2023-11-17 11:32:59,921 INFO L125 PetriNetUnfolderBase]: For 17098/17098 co-relation queries the response was YES. [2023-11-17 11:32:59,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8640 conditions, 993 events. 576/993 cut-off events. For 17098/17098 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4880 event pairs, 78 based on Foata normal form. 6/999 useless extension candidates. Maximal degree in co-relation 8472. Up to 606 conditions per place. [2023-11-17 11:32:59,930 INFO L140 encePairwiseOnDemand]: 93/105 looper letters, 128 selfloop transitions, 71 changer transitions 4/203 dead transitions. [2023-11-17 11:32:59,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 203 transitions, 4138 flow [2023-11-17 11:32:59,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 11:32:59,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-17 11:32:59,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 144 transitions. [2023-11-17 11:32:59,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13714285714285715 [2023-11-17 11:32:59,932 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 144 transitions. [2023-11-17 11:32:59,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 144 transitions. [2023-11-17 11:32:59,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:32:59,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 144 transitions. [2023-11-17 11:32:59,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 0 states have call successors, (0), 0 states 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 11:32:59,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states 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 11:32:59,934 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states 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 11:32:59,934 INFO L175 Difference]: Start difference. First operand has 130 places, 175 transitions, 3412 flow. Second operand 10 states and 144 transitions. [2023-11-17 11:32:59,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 203 transitions, 4138 flow [2023-11-17 11:32:59,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 203 transitions, 4068 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-11-17 11:32:59,988 INFO L231 Difference]: Finished difference. Result has 136 places, 178 transitions, 3562 flow [2023-11-17 11:32:59,989 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=3301, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3562, PETRI_PLACES=136, PETRI_TRANSITIONS=178} [2023-11-17 11:32:59,989 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 112 predicate places. [2023-11-17 11:32:59,989 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 178 transitions, 3562 flow [2023-11-17 11:32:59,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:32:59,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:32:59,989 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:32:59,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-17 11:32:59,990 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:32:59,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:32:59,990 INFO L85 PathProgramCache]: Analyzing trace with hash -525105916, now seen corresponding path program 4 times [2023-11-17 11:32:59,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:32:59,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915604188] [2023-11-17 11:32:59,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:32:59,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:33:01,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:01,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915604188] [2023-11-17 11:33:01,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915604188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:33:01,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:33:01,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:33:01,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577490534] [2023-11-17 11:33:01,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:33:01,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:33:01,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:01,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:33:01,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:33:01,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:01,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 178 transitions, 3562 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:01,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:01,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:01,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:33:02,367 INFO L124 PetriNetUnfolderBase]: 565/972 cut-off events. [2023-11-17 11:33:02,367 INFO L125 PetriNetUnfolderBase]: For 18454/18454 co-relation queries the response was YES. [2023-11-17 11:33:02,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8723 conditions, 972 events. 565/972 cut-off events. For 18454/18454 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4729 event pairs, 176 based on Foata normal form. 2/974 useless extension candidates. Maximal degree in co-relation 8552. Up to 840 conditions per place. [2023-11-17 11:33:02,375 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 163 selfloop transitions, 31 changer transitions 3/197 dead transitions. [2023-11-17 11:33:02,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 197 transitions, 4094 flow [2023-11-17 11:33:02,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:33:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:33:02,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 113 transitions. [2023-11-17 11:33:02,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13452380952380952 [2023-11-17 11:33:02,377 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 113 transitions. [2023-11-17 11:33:02,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 113 transitions. [2023-11-17 11:33:02,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:33:02,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 113 transitions. [2023-11-17 11:33:02,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states 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 11:33:02,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:33:02,379 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:33:02,379 INFO L175 Difference]: Start difference. First operand has 136 places, 178 transitions, 3562 flow. Second operand 8 states and 113 transitions. [2023-11-17 11:33:02,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 197 transitions, 4094 flow [2023-11-17 11:33:02,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 197 transitions, 4063 flow, removed 9 selfloop flow, removed 2 redundant places. [2023-11-17 11:33:02,438 INFO L231 Difference]: Finished difference. Result has 142 places, 175 transitions, 3515 flow [2023-11-17 11:33:02,438 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=3480, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3515, PETRI_PLACES=142, PETRI_TRANSITIONS=175} [2023-11-17 11:33:02,439 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 118 predicate places. [2023-11-17 11:33:02,439 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 175 transitions, 3515 flow [2023-11-17 11:33:02,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:02,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:33:02,439 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:33:02,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-17 11:33:02,439 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:33:02,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:33:02,440 INFO L85 PathProgramCache]: Analyzing trace with hash -525134313, now seen corresponding path program 3 times [2023-11-17 11:33:02,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:33:02,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471968133] [2023-11-17 11:33:02,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:02,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:04,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:33:04,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:04,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471968133] [2023-11-17 11:33:04,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471968133] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:33:04,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:33:04,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:33:04,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804580649] [2023-11-17 11:33:04,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:33:04,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:33:04,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:04,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:33:04,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:33:04,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:04,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 175 transitions, 3515 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:04,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:04,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:04,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:33:05,818 INFO L124 PetriNetUnfolderBase]: 562/967 cut-off events. [2023-11-17 11:33:05,818 INFO L125 PetriNetUnfolderBase]: For 18389/18389 co-relation queries the response was YES. [2023-11-17 11:33:05,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8685 conditions, 967 events. 562/967 cut-off events. For 18389/18389 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4691 event pairs, 160 based on Foata normal form. 2/969 useless extension candidates. Maximal degree in co-relation 8513. Up to 748 conditions per place. [2023-11-17 11:33:05,826 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 155 selfloop transitions, 45 changer transitions 2/202 dead transitions. [2023-11-17 11:33:05,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 202 transitions, 4182 flow [2023-11-17 11:33:05,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:33:05,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:33:05,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 116 transitions. [2023-11-17 11:33:05,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1380952380952381 [2023-11-17 11:33:05,828 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 116 transitions. [2023-11-17 11:33:05,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 116 transitions. [2023-11-17 11:33:05,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:33:05,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 116 transitions. [2023-11-17 11:33:05,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 11:33:05,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:33:05,830 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:33:05,830 INFO L175 Difference]: Start difference. First operand has 142 places, 175 transitions, 3515 flow. Second operand 8 states and 116 transitions. [2023-11-17 11:33:05,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 202 transitions, 4182 flow [2023-11-17 11:33:05,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 202 transitions, 4118 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-11-17 11:33:05,914 INFO L231 Difference]: Finished difference. Result has 141 places, 175 transitions, 3533 flow [2023-11-17 11:33:05,914 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=3430, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3533, PETRI_PLACES=141, PETRI_TRANSITIONS=175} [2023-11-17 11:33:05,915 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 117 predicate places. [2023-11-17 11:33:05,915 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 175 transitions, 3533 flow [2023-11-17 11:33:05,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:05,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:33:05,915 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:33:05,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-17 11:33:05,917 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:33:05,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:33:05,917 INFO L85 PathProgramCache]: Analyzing trace with hash -525121292, now seen corresponding path program 3 times [2023-11-17 11:33:05,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:33:05,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219467569] [2023-11-17 11:33:05,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:05,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:08,101 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 11:33:08,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:08,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219467569] [2023-11-17 11:33:08,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219467569] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:33:08,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362307589] [2023-11-17 11:33:08,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-17 11:33:08,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:33:08,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:33:08,102 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:33:08,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-17 11:33:08,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-17 11:33:08,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:33:08,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-17 11:33:08,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:33:08,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2023-11-17 11:33:09,146 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 11:33:09,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:33:09,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 11:33:09,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 58 [2023-11-17 11:33:09,459 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 11:33:09,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362307589] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:33:09,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:33:09,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:33:09,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860769673] [2023-11-17 11:33:09,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:33:09,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:33:09,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:09,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:33:09,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:33:09,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:09,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 175 transitions, 3533 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:33:09,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:09,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:09,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:33:13,375 INFO L124 PetriNetUnfolderBase]: 598/1029 cut-off events. [2023-11-17 11:33:13,375 INFO L125 PetriNetUnfolderBase]: For 18472/18472 co-relation queries the response was YES. [2023-11-17 11:33:13,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9104 conditions, 1029 events. 598/1029 cut-off events. For 18472/18472 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5038 event pairs, 65 based on Foata normal form. 14/1043 useless extension candidates. Maximal degree in co-relation 8948. Up to 341 conditions per place. [2023-11-17 11:33:13,385 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 111 selfloop transitions, 139 changer transitions 21/271 dead transitions. [2023-11-17 11:33:13,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 271 transitions, 5010 flow [2023-11-17 11:33:13,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-17 11:33:13,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-11-17 11:33:13,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 380 transitions. [2023-11-17 11:33:13,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1292517006802721 [2023-11-17 11:33:13,390 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 380 transitions. [2023-11-17 11:33:13,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 380 transitions. [2023-11-17 11:33:13,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:33:13,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 380 transitions. [2023-11-17 11:33:13,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 13.571428571428571) internal successors, (380), 28 states have internal predecessors, (380), 0 states have call successors, (0), 0 states 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 11:33:13,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 105.0) internal successors, (3045), 29 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states 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 11:33:13,398 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 105.0) internal successors, (3045), 29 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states 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 11:33:13,398 INFO L175 Difference]: Start difference. First operand has 141 places, 175 transitions, 3533 flow. Second operand 28 states and 380 transitions. [2023-11-17 11:33:13,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 271 transitions, 5010 flow [2023-11-17 11:33:13,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 271 transitions, 4848 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-17 11:33:13,490 INFO L231 Difference]: Finished difference. Result has 169 places, 186 transitions, 3868 flow [2023-11-17 11:33:13,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=3353, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=3868, PETRI_PLACES=169, PETRI_TRANSITIONS=186} [2023-11-17 11:33:13,490 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 145 predicate places. [2023-11-17 11:33:13,490 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 186 transitions, 3868 flow [2023-11-17 11:33:13,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:33:13,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:33:13,491 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:33:13,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-17 11:33:13,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:33:13,701 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:33:13,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:33:13,701 INFO L85 PathProgramCache]: Analyzing trace with hash -525551387, now seen corresponding path program 1 times [2023-11-17 11:33:13,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:33:13,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876194814] [2023-11-17 11:33:13,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:13,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:15,136 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 11:33:15,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:15,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876194814] [2023-11-17 11:33:15,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876194814] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:33:15,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642056227] [2023-11-17 11:33:15,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:15,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:33:15,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:33:15,138 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:33:15,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-17 11:33:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:15,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-17 11:33:15,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:33:15,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2023-11-17 11:33:15,819 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 11:33:15,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:33:16,008 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 11:33:16,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 58 [2023-11-17 11:33:16,065 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 11:33:16,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642056227] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:33:16,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:33:16,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:33:16,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911726678] [2023-11-17 11:33:16,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:33:16,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:33:16,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:16,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:33:16,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:33:16,067 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:16,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 186 transitions, 3868 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:33:16,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:16,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:16,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:33:19,059 INFO L124 PetriNetUnfolderBase]: 582/1013 cut-off events. [2023-11-17 11:33:19,059 INFO L125 PetriNetUnfolderBase]: For 21605/21605 co-relation queries the response was YES. [2023-11-17 11:33:19,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9450 conditions, 1013 events. 582/1013 cut-off events. For 21605/21605 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5063 event pairs, 124 based on Foata normal form. 6/1019 useless extension candidates. Maximal degree in co-relation 9245. Up to 574 conditions per place. [2023-11-17 11:33:19,068 INFO L140 encePairwiseOnDemand]: 93/105 looper letters, 145 selfloop transitions, 85 changer transitions 2/232 dead transitions. [2023-11-17 11:33:19,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 232 transitions, 4842 flow [2023-11-17 11:33:19,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-17 11:33:19,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-17 11:33:19,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 223 transitions. [2023-11-17 11:33:19,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13273809523809524 [2023-11-17 11:33:19,070 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 223 transitions. [2023-11-17 11:33:19,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 223 transitions. [2023-11-17 11:33:19,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:33:19,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 223 transitions. [2023-11-17 11:33:19,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 13.9375) internal successors, (223), 16 states have internal predecessors, (223), 0 states have call successors, (0), 0 states 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 11:33:19,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 105.0) internal successors, (1785), 17 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states 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 11:33:19,073 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 105.0) internal successors, (1785), 17 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states 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 11:33:19,073 INFO L175 Difference]: Start difference. First operand has 169 places, 186 transitions, 3868 flow. Second operand 16 states and 223 transitions. [2023-11-17 11:33:19,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 232 transitions, 4842 flow [2023-11-17 11:33:19,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 232 transitions, 4429 flow, removed 52 selfloop flow, removed 20 redundant places. [2023-11-17 11:33:19,168 INFO L231 Difference]: Finished difference. Result has 163 places, 189 transitions, 3722 flow [2023-11-17 11:33:19,168 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=3473, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3722, PETRI_PLACES=163, PETRI_TRANSITIONS=189} [2023-11-17 11:33:19,169 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 139 predicate places. [2023-11-17 11:33:19,169 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 189 transitions, 3722 flow [2023-11-17 11:33:19,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:33:19,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:33:19,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:33:19,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-17 11:33:19,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:33:19,379 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:33:19,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:33:19,379 INFO L85 PathProgramCache]: Analyzing trace with hash -912840150, now seen corresponding path program 5 times [2023-11-17 11:33:19,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:33:19,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096600093] [2023-11-17 11:33:19,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:19,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:20,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:33:20,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:20,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096600093] [2023-11-17 11:33:20,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096600093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:33:20,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:33:20,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:33:20,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545087573] [2023-11-17 11:33:20,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:33:20,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:33:20,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:20,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:33:20,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:33:20,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:20,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 189 transitions, 3722 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:20,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:20,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:20,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:33:21,512 INFO L124 PetriNetUnfolderBase]: 643/1118 cut-off events. [2023-11-17 11:33:21,512 INFO L125 PetriNetUnfolderBase]: For 21839/21839 co-relation queries the response was YES. [2023-11-17 11:33:21,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9871 conditions, 1118 events. 643/1118 cut-off events. For 21839/21839 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5650 event pairs, 106 based on Foata normal form. 2/1120 useless extension candidates. Maximal degree in co-relation 9613. Up to 482 conditions per place. [2023-11-17 11:33:21,521 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 136 selfloop transitions, 108 changer transitions 12/256 dead transitions. [2023-11-17 11:33:21,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 256 transitions, 5450 flow [2023-11-17 11:33:21,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:33:21,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:33:21,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 124 transitions. [2023-11-17 11:33:21,522 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.14761904761904762 [2023-11-17 11:33:21,522 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 124 transitions. [2023-11-17 11:33:21,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 124 transitions. [2023-11-17 11:33:21,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:33:21,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 124 transitions. [2023-11-17 11:33:21,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 15.5) internal successors, (124), 8 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 11:33:21,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:33:21,523 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:33:21,523 INFO L175 Difference]: Start difference. First operand has 163 places, 189 transitions, 3722 flow. Second operand 8 states and 124 transitions. [2023-11-17 11:33:21,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 256 transitions, 5450 flow [2023-11-17 11:33:21,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 256 transitions, 5214 flow, removed 6 selfloop flow, removed 12 redundant places. [2023-11-17 11:33:21,594 INFO L231 Difference]: Finished difference. Result has 163 places, 214 transitions, 4470 flow [2023-11-17 11:33:21,594 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=3529, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4470, PETRI_PLACES=163, PETRI_TRANSITIONS=214} [2023-11-17 11:33:21,594 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 139 predicate places. [2023-11-17 11:33:21,594 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 214 transitions, 4470 flow [2023-11-17 11:33:21,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:21,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:33:21,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:33:21,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-17 11:33:21,595 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:33:21,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:33:21,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1902114382, now seen corresponding path program 4 times [2023-11-17 11:33:21,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:33:21,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236263895] [2023-11-17 11:33:21,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:21,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:22,850 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 11:33:22,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:22,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236263895] [2023-11-17 11:33:22,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236263895] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:33:22,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854220823] [2023-11-17 11:33:22,850 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-17 11:33:22,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:33:22,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:33:22,853 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:33:22,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-17 11:33:23,336 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-17 11:33:23,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:33:23,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-17 11:33:23,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:33:23,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 35 [2023-11-17 11:33:23,541 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 11:33:23,541 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:33:23,691 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 11:33:23,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 58 [2023-11-17 11:33:23,778 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 11:33:23,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854220823] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:33:23,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:33:23,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:33:23,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841484622] [2023-11-17 11:33:23,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:33:23,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:33:23,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:23,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:33:23,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:33:23,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:23,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 214 transitions, 4470 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:33:23,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:23,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:23,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:33:27,346 INFO L124 PetriNetUnfolderBase]: 797/1359 cut-off events. [2023-11-17 11:33:27,346 INFO L125 PetriNetUnfolderBase]: For 29459/29459 co-relation queries the response was YES. [2023-11-17 11:33:27,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12816 conditions, 1359 events. 797/1359 cut-off events. For 29459/29459 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 6987 event pairs, 80 based on Foata normal form. 10/1369 useless extension candidates. Maximal degree in co-relation 12531. Up to 419 conditions per place. [2023-11-17 11:33:27,357 INFO L140 encePairwiseOnDemand]: 93/105 looper letters, 146 selfloop transitions, 175 changer transitions 12/333 dead transitions. [2023-11-17 11:33:27,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 333 transitions, 7335 flow [2023-11-17 11:33:27,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 11:33:27,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-17 11:33:27,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 262 transitions. [2023-11-17 11:33:27,358 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13862433862433862 [2023-11-17 11:33:27,358 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 262 transitions. [2023-11-17 11:33:27,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 262 transitions. [2023-11-17 11:33:27,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:33:27,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 262 transitions. [2023-11-17 11:33:27,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 14.555555555555555) internal successors, (262), 18 states have internal predecessors, (262), 0 states have call successors, (0), 0 states 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 11:33:27,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 105.0) internal successors, (1995), 19 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states 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 11:33:27,361 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 105.0) internal successors, (1995), 19 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states 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 11:33:27,361 INFO L175 Difference]: Start difference. First operand has 163 places, 214 transitions, 4470 flow. Second operand 18 states and 262 transitions. [2023-11-17 11:33:27,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 333 transitions, 7335 flow [2023-11-17 11:33:27,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 333 transitions, 7185 flow, removed 43 selfloop flow, removed 2 redundant places. [2023-11-17 11:33:27,474 INFO L231 Difference]: Finished difference. Result has 185 places, 275 transitions, 6349 flow [2023-11-17 11:33:27,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=4370, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6349, PETRI_PLACES=185, PETRI_TRANSITIONS=275} [2023-11-17 11:33:27,475 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 161 predicate places. [2023-11-17 11:33:27,475 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 275 transitions, 6349 flow [2023-11-17 11:33:27,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:33:27,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:33:27,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:33:27,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-17 11:33:27,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:33:27,676 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:33:27,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:33:27,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1384891786, now seen corresponding path program 6 times [2023-11-17 11:33:27,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:33:27,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322904850] [2023-11-17 11:33:27,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:27,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:28,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:33:28,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:28,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322904850] [2023-11-17 11:33:28,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322904850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:33:28,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:33:28,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:33:28,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409425542] [2023-11-17 11:33:28,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:33:28,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:33:28,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:28,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:33:28,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:33:28,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:28,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 275 transitions, 6349 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:28,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:28,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:28,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:33:30,320 INFO L124 PetriNetUnfolderBase]: 805/1377 cut-off events. [2023-11-17 11:33:30,321 INFO L125 PetriNetUnfolderBase]: For 33117/33117 co-relation queries the response was YES. [2023-11-17 11:33:30,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13526 conditions, 1377 events. 805/1377 cut-off events. For 33117/33117 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 7115 event pairs, 221 based on Foata normal form. 2/1379 useless extension candidates. Maximal degree in co-relation 13286. Up to 1085 conditions per place. [2023-11-17 11:33:30,333 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 200 selfloop transitions, 106 changer transitions 10/316 dead transitions. [2023-11-17 11:33:30,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 316 transitions, 7692 flow [2023-11-17 11:33:30,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 11:33:30,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-17 11:33:30,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 147 transitions. [2023-11-17 11:33:30,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.12727272727272726 [2023-11-17 11:33:30,334 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 147 transitions. [2023-11-17 11:33:30,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 147 transitions. [2023-11-17 11:33:30,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:33:30,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 147 transitions. [2023-11-17 11:33:30,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 13.363636363636363) internal successors, (147), 11 states have internal predecessors, (147), 0 states have call successors, (0), 0 states 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 11:33:30,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states 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 11:33:30,336 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states 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 11:33:30,336 INFO L175 Difference]: Start difference. First operand has 185 places, 275 transitions, 6349 flow. Second operand 11 states and 147 transitions. [2023-11-17 11:33:30,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 316 transitions, 7692 flow [2023-11-17 11:33:30,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 316 transitions, 7444 flow, removed 120 selfloop flow, removed 3 redundant places. [2023-11-17 11:33:30,482 INFO L231 Difference]: Finished difference. Result has 198 places, 291 transitions, 6875 flow [2023-11-17 11:33:30,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=6115, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6875, PETRI_PLACES=198, PETRI_TRANSITIONS=291} [2023-11-17 11:33:30,482 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 174 predicate places. [2023-11-17 11:33:30,482 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 291 transitions, 6875 flow [2023-11-17 11:33:30,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:30,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:33:30,483 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:33:30,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-17 11:33:30,483 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:33:30,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:33:30,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1456530923, now seen corresponding path program 4 times [2023-11-17 11:33:30,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:33:30,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526348969] [2023-11-17 11:33:30,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:30,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:31,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:33:31,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:31,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526348969] [2023-11-17 11:33:31,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526348969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:33:31,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:33:31,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:33:31,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000908117] [2023-11-17 11:33:31,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:33:31,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:33:31,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:31,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:33:31,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:33:31,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:31,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 291 transitions, 6875 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:31,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:31,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:31,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:33:33,369 INFO L124 PetriNetUnfolderBase]: 771/1329 cut-off events. [2023-11-17 11:33:33,370 INFO L125 PetriNetUnfolderBase]: For 32090/32090 co-relation queries the response was YES. [2023-11-17 11:33:33,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13238 conditions, 1329 events. 771/1329 cut-off events. For 32090/32090 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6904 event pairs, 101 based on Foata normal form. 2/1331 useless extension candidates. Maximal degree in co-relation 13097. Up to 912 conditions per place. [2023-11-17 11:33:33,384 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 204 selfloop transitions, 97 changer transitions 6/307 dead transitions. [2023-11-17 11:33:33,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 307 transitions, 7685 flow [2023-11-17 11:33:33,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:33:33,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:33:33,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 109 transitions. [2023-11-17 11:33:33,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.12976190476190477 [2023-11-17 11:33:33,385 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 109 transitions. [2023-11-17 11:33:33,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 109 transitions. [2023-11-17 11:33:33,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:33:33,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 109 transitions. [2023-11-17 11:33:33,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 11:33:33,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:33:33,386 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:33:33,386 INFO L175 Difference]: Start difference. First operand has 198 places, 291 transitions, 6875 flow. Second operand 8 states and 109 transitions. [2023-11-17 11:33:33,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 307 transitions, 7685 flow [2023-11-17 11:33:33,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 307 transitions, 7534 flow, removed 63 selfloop flow, removed 3 redundant places. [2023-11-17 11:33:33,531 INFO L231 Difference]: Finished difference. Result has 204 places, 289 transitions, 6987 flow [2023-11-17 11:33:33,531 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=6672, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6987, PETRI_PLACES=204, PETRI_TRANSITIONS=289} [2023-11-17 11:33:33,532 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 180 predicate places. [2023-11-17 11:33:33,532 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 289 transitions, 6987 flow [2023-11-17 11:33:33,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:33,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:33:33,532 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:33:33,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-17 11:33:33,532 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:33:33,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:33:33,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1190859206, now seen corresponding path program 7 times [2023-11-17 11:33:33,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:33:33,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23902184] [2023-11-17 11:33:33,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:33,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:35,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:33:35,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:35,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23902184] [2023-11-17 11:33:35,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23902184] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:33:35,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:33:35,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:33:35,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725500938] [2023-11-17 11:33:35,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:33:35,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:33:35,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:35,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:33:35,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:33:35,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:35,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 289 transitions, 6987 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:35,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:35,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:35,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:33:36,503 INFO L124 PetriNetUnfolderBase]: 768/1328 cut-off events. [2023-11-17 11:33:36,503 INFO L125 PetriNetUnfolderBase]: For 33466/33466 co-relation queries the response was YES. [2023-11-17 11:33:36,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13501 conditions, 1328 events. 768/1328 cut-off events. For 33466/33466 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6947 event pairs, 245 based on Foata normal form. 2/1330 useless extension candidates. Maximal degree in co-relation 13355. Up to 1169 conditions per place. [2023-11-17 11:33:36,516 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 265 selfloop transitions, 55 changer transitions 4/324 dead transitions. [2023-11-17 11:33:36,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 324 transitions, 8227 flow [2023-11-17 11:33:36,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 11:33:36,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-17 11:33:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 128 transitions. [2023-11-17 11:33:36,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13544973544973546 [2023-11-17 11:33:36,518 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 128 transitions. [2023-11-17 11:33:36,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 128 transitions. [2023-11-17 11:33:36,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:33:36,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 128 transitions. [2023-11-17 11:33:36,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 0 states have call successors, (0), 0 states 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 11:33:36,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 11:33:36,519 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 11:33:36,519 INFO L175 Difference]: Start difference. First operand has 204 places, 289 transitions, 6987 flow. Second operand 9 states and 128 transitions. [2023-11-17 11:33:36,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 324 transitions, 8227 flow [2023-11-17 11:33:36,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 324 transitions, 8058 flow, removed 25 selfloop flow, removed 5 redundant places. [2023-11-17 11:33:36,674 INFO L231 Difference]: Finished difference. Result has 212 places, 298 transitions, 7253 flow [2023-11-17 11:33:36,674 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=6843, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7253, PETRI_PLACES=212, PETRI_TRANSITIONS=298} [2023-11-17 11:33:36,675 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 188 predicate places. [2023-11-17 11:33:36,675 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 298 transitions, 7253 flow [2023-11-17 11:33:36,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:36,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:33:36,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:33:36,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-17 11:33:36,675 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:33:36,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:33:36,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1634120889, now seen corresponding path program 5 times [2023-11-17 11:33:36,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:33:36,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883400490] [2023-11-17 11:33:36,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:36,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:33:38,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:38,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883400490] [2023-11-17 11:33:38,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883400490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:33:38,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:33:38,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:33:38,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964308426] [2023-11-17 11:33:38,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:33:38,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:33:38,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:38,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:33:38,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:33:38,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:38,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 298 transitions, 7253 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:38,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:38,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:38,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:33:39,491 INFO L124 PetriNetUnfolderBase]: 780/1345 cut-off events. [2023-11-17 11:33:39,492 INFO L125 PetriNetUnfolderBase]: For 33093/33093 co-relation queries the response was YES. [2023-11-17 11:33:39,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13639 conditions, 1345 events. 780/1345 cut-off events. For 33093/33093 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 7029 event pairs, 228 based on Foata normal form. 2/1347 useless extension candidates. Maximal degree in co-relation 13491. Up to 1057 conditions per place. [2023-11-17 11:33:39,504 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 257 selfloop transitions, 78 changer transitions 2/337 dead transitions. [2023-11-17 11:33:39,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 337 transitions, 8596 flow [2023-11-17 11:33:39,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:33:39,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:33:39,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 115 transitions. [2023-11-17 11:33:39,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13690476190476192 [2023-11-17 11:33:39,505 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 115 transitions. [2023-11-17 11:33:39,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 115 transitions. [2023-11-17 11:33:39,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:33:39,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 115 transitions. [2023-11-17 11:33:39,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states 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 11:33:39,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:33:39,506 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:33:39,507 INFO L175 Difference]: Start difference. First operand has 212 places, 298 transitions, 7253 flow. Second operand 8 states and 115 transitions. [2023-11-17 11:33:39,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 337 transitions, 8596 flow [2023-11-17 11:33:39,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 337 transitions, 8491 flow, removed 27 selfloop flow, removed 4 redundant places. [2023-11-17 11:33:39,651 INFO L231 Difference]: Finished difference. Result has 219 places, 318 transitions, 7904 flow [2023-11-17 11:33:39,651 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=7153, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7904, PETRI_PLACES=219, PETRI_TRANSITIONS=318} [2023-11-17 11:33:39,651 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 195 predicate places. [2023-11-17 11:33:39,651 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 318 transitions, 7904 flow [2023-11-17 11:33:39,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:39,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:33:39,651 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:33:39,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-17 11:33:39,652 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:33:39,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:33:39,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1190426756, now seen corresponding path program 8 times [2023-11-17 11:33:39,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:33:39,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139248362] [2023-11-17 11:33:39,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:39,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:41,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:33:41,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:41,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139248362] [2023-11-17 11:33:41,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139248362] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:33:41,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:33:41,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:33:41,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389247176] [2023-11-17 11:33:41,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:33:41,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:33:41,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:41,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:33:41,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:33:41,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:41,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 318 transitions, 7904 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:41,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:41,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:41,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:33:41,884 INFO L124 PetriNetUnfolderBase]: 790/1359 cut-off events. [2023-11-17 11:33:41,884 INFO L125 PetriNetUnfolderBase]: For 37292/37292 co-relation queries the response was YES. [2023-11-17 11:33:41,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13994 conditions, 1359 events. 790/1359 cut-off events. For 37292/37292 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 7106 event pairs, 188 based on Foata normal form. 4/1363 useless extension candidates. Maximal degree in co-relation 13844. Up to 845 conditions per place. [2023-11-17 11:33:41,896 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 238 selfloop transitions, 101 changer transitions 0/339 dead transitions. [2023-11-17 11:33:41,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 339 transitions, 8894 flow [2023-11-17 11:33:41,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:33:41,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:33:41,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 119 transitions. [2023-11-17 11:33:41,897 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.14166666666666666 [2023-11-17 11:33:41,897 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 119 transitions. [2023-11-17 11:33:41,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 119 transitions. [2023-11-17 11:33:41,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:33:41,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 119 transitions. [2023-11-17 11:33:41,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states 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 11:33:41,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:33:41,898 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:33:41,899 INFO L175 Difference]: Start difference. First operand has 219 places, 318 transitions, 7904 flow. Second operand 8 states and 119 transitions. [2023-11-17 11:33:41,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 339 transitions, 8894 flow [2023-11-17 11:33:42,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 339 transitions, 8873 flow, removed 10 selfloop flow, removed 1 redundant places. [2023-11-17 11:33:42,056 INFO L231 Difference]: Finished difference. Result has 226 places, 324 transitions, 8296 flow [2023-11-17 11:33:42,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=7883, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8296, PETRI_PLACES=226, PETRI_TRANSITIONS=324} [2023-11-17 11:33:42,056 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 202 predicate places. [2023-11-17 11:33:42,056 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 324 transitions, 8296 flow [2023-11-17 11:33:42,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:42,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:33:42,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:33:42,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-17 11:33:42,057 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:33:42,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:33:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1190456019, now seen corresponding path program 6 times [2023-11-17 11:33:42,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:33:42,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773604070] [2023-11-17 11:33:42,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:42,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:43,234 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 11:33:43,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:43,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773604070] [2023-11-17 11:33:43,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773604070] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:33:43,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133551879] [2023-11-17 11:33:43,235 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-17 11:33:43,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:33:43,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:33:43,236 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:33:43,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-17 11:33:43,823 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2023-11-17 11:33:43,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:33:43,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-17 11:33:43,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:33:43,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2023-11-17 11:33:44,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:33:44,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 11:33:44,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133551879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:33:44,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-17 11:33:44,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 15 [2023-11-17 11:33:44,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684164228] [2023-11-17 11:33:44,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:33:44,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:33:44,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:44,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:33:44,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-11-17 11:33:44,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:44,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 324 transitions, 8296 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:44,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:44,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:44,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:33:45,096 INFO L124 PetriNetUnfolderBase]: 778/1355 cut-off events. [2023-11-17 11:33:45,096 INFO L125 PetriNetUnfolderBase]: For 38476/38476 co-relation queries the response was YES. [2023-11-17 11:33:45,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14182 conditions, 1355 events. 778/1355 cut-off events. For 38476/38476 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 7171 event pairs, 184 based on Foata normal form. 10/1365 useless extension candidates. Maximal degree in co-relation 14031. Up to 828 conditions per place. [2023-11-17 11:33:45,117 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 241 selfloop transitions, 87 changer transitions 8/336 dead transitions. [2023-11-17 11:33:45,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 336 transitions, 9041 flow [2023-11-17 11:33:45,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 11:33:45,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-17 11:33:45,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 142 transitions. [2023-11-17 11:33:45,119 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13523809523809524 [2023-11-17 11:33:45,119 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 142 transitions. [2023-11-17 11:33:45,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 142 transitions. [2023-11-17 11:33:45,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:33:45,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 142 transitions. [2023-11-17 11:33:45,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 14.2) internal successors, (142), 10 states have internal predecessors, (142), 0 states have call successors, (0), 0 states 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 11:33:45,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states 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 11:33:45,121 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states 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 11:33:45,121 INFO L175 Difference]: Start difference. First operand has 226 places, 324 transitions, 8296 flow. Second operand 10 states and 142 transitions. [2023-11-17 11:33:45,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 336 transitions, 9041 flow [2023-11-17 11:33:45,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 336 transitions, 8930 flow, removed 18 selfloop flow, removed 6 redundant places. [2023-11-17 11:33:45,325 INFO L231 Difference]: Finished difference. Result has 229 places, 312 transitions, 8043 flow [2023-11-17 11:33:45,325 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=8019, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8043, PETRI_PLACES=229, PETRI_TRANSITIONS=312} [2023-11-17 11:33:45,326 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 205 predicate places. [2023-11-17 11:33:45,326 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 312 transitions, 8043 flow [2023-11-17 11:33:45,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:45,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:33:45,326 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:33:45,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-17 11:33:45,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:33:45,531 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:33:45,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:33:45,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1190413735, now seen corresponding path program 2 times [2023-11-17 11:33:45,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:33:45,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554144780] [2023-11-17 11:33:45,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:45,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:47,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:33:47,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:47,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554144780] [2023-11-17 11:33:47,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554144780] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:33:47,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728031646] [2023-11-17 11:33:47,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 11:33:47,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:33:47,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:33:47,264 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:33:47,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-17 11:33:48,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 11:33:48,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:33:48,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-17 11:33:48,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:33:48,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2023-11-17 11:33:48,303 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 11:33:48,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:33:48,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 11:33:48,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 58 [2023-11-17 11:33:48,533 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 11:33:48,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728031646] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:33:48,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:33:48,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:33:48,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784129223] [2023-11-17 11:33:48,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:33:48,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:33:48,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:48,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:33:48,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:33:48,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:48,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 312 transitions, 8043 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:33:48,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:48,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:48,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:33:52,661 INFO L124 PetriNetUnfolderBase]: 800/1401 cut-off events. [2023-11-17 11:33:52,661 INFO L125 PetriNetUnfolderBase]: For 39607/39607 co-relation queries the response was YES. [2023-11-17 11:33:52,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14600 conditions, 1401 events. 800/1401 cut-off events. For 39607/39607 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 7557 event pairs, 152 based on Foata normal form. 4/1405 useless extension candidates. Maximal degree in co-relation 14451. Up to 842 conditions per place. [2023-11-17 11:33:52,675 INFO L140 encePairwiseOnDemand]: 93/105 looper letters, 234 selfloop transitions, 134 changer transitions 6/374 dead transitions. [2023-11-17 11:33:52,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 374 transitions, 9457 flow [2023-11-17 11:33:52,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-17 11:33:52,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-11-17 11:33:52,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 328 transitions. [2023-11-17 11:33:52,677 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.12495238095238095 [2023-11-17 11:33:52,677 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 328 transitions. [2023-11-17 11:33:52,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 328 transitions. [2023-11-17 11:33:52,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:33:52,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 328 transitions. [2023-11-17 11:33:52,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 13.12) internal successors, (328), 25 states have internal predecessors, (328), 0 states have call successors, (0), 0 states 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 11:33:52,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 105.0) internal successors, (2730), 26 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states 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 11:33:52,680 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 105.0) internal successors, (2730), 26 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states 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 11:33:52,681 INFO L175 Difference]: Start difference. First operand has 229 places, 312 transitions, 8043 flow. Second operand 25 states and 328 transitions. [2023-11-17 11:33:52,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 374 transitions, 9457 flow [2023-11-17 11:33:52,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 374 transitions, 9255 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-11-17 11:33:52,846 INFO L231 Difference]: Finished difference. Result has 247 places, 323 transitions, 8407 flow [2023-11-17 11:33:52,847 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=7860, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=8407, PETRI_PLACES=247, PETRI_TRANSITIONS=323} [2023-11-17 11:33:52,847 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 223 predicate places. [2023-11-17 11:33:52,848 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 323 transitions, 8407 flow [2023-11-17 11:33:52,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:33:52,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:33:52,848 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:33:52,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-17 11:33:53,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-17 11:33:53,051 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:33:53,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:33:53,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1190830809, now seen corresponding path program 7 times [2023-11-17 11:33:53,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:33:53,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301830737] [2023-11-17 11:33:53,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:53,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:54,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:33:54,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:54,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301830737] [2023-11-17 11:33:54,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301830737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:33:54,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:33:54,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:33:54,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348103419] [2023-11-17 11:33:54,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:33:54,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:33:54,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:54,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:33:54,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:33:54,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:54,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 323 transitions, 8407 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:54,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:54,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:54,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:33:56,343 INFO L124 PetriNetUnfolderBase]: 797/1392 cut-off events. [2023-11-17 11:33:56,344 INFO L125 PetriNetUnfolderBase]: For 36618/36618 co-relation queries the response was YES. [2023-11-17 11:33:56,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14738 conditions, 1392 events. 797/1392 cut-off events. For 36618/36618 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 7420 event pairs, 124 based on Foata normal form. 4/1396 useless extension candidates. Maximal degree in co-relation 14587. Up to 1024 conditions per place. [2023-11-17 11:33:56,356 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 227 selfloop transitions, 108 changer transitions 1/336 dead transitions. [2023-11-17 11:33:56,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 336 transitions, 9206 flow [2023-11-17 11:33:56,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:33:56,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:33:56,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 113 transitions. [2023-11-17 11:33:56,358 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13452380952380952 [2023-11-17 11:33:56,358 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 113 transitions. [2023-11-17 11:33:56,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 113 transitions. [2023-11-17 11:33:56,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:33:56,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 113 transitions. [2023-11-17 11:33:56,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states 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 11:33:56,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:33:56,359 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:33:56,359 INFO L175 Difference]: Start difference. First operand has 247 places, 323 transitions, 8407 flow. Second operand 8 states and 113 transitions. [2023-11-17 11:33:56,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 336 transitions, 9206 flow [2023-11-17 11:33:56,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 336 transitions, 8935 flow, removed 29 selfloop flow, removed 13 redundant places. [2023-11-17 11:33:56,547 INFO L231 Difference]: Finished difference. Result has 239 places, 323 transitions, 8342 flow [2023-11-17 11:33:56,547 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=8074, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8342, PETRI_PLACES=239, PETRI_TRANSITIONS=323} [2023-11-17 11:33:56,548 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 215 predicate places. [2023-11-17 11:33:56,548 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 323 transitions, 8342 flow [2023-11-17 11:33:56,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:33:56,548 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:33:56,548 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:33:56,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-17 11:33:56,548 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:33:56,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:33:56,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1624766515, now seen corresponding path program 3 times [2023-11-17 11:33:56,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:33:56,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425678504] [2023-11-17 11:33:56,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:33:56,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:33:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:33:57,993 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 11:33:57,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:33:57,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425678504] [2023-11-17 11:33:57,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425678504] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:33:57,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018170314] [2023-11-17 11:33:57,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-17 11:33:57,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:33:57,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:33:57,995 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:33:57,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-17 11:33:58,669 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-17 11:33:58,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:33:58,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-17 11:33:58,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:33:58,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 35 [2023-11-17 11:33:58,887 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 11:33:58,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:33:59,030 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 11:33:59,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 58 [2023-11-17 11:33:59,118 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 11:33:59,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018170314] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:33:59,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:33:59,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:33:59,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959182246] [2023-11-17 11:33:59,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:33:59,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:33:59,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:33:59,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:33:59,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:33:59,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:33:59,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 323 transitions, 8342 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:33:59,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:33:59,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:33:59,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:01,660 INFO L124 PetriNetUnfolderBase]: 811/1418 cut-off events. [2023-11-17 11:34:01,660 INFO L125 PetriNetUnfolderBase]: For 41065/41065 co-relation queries the response was YES. [2023-11-17 11:34:01,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14933 conditions, 1418 events. 811/1418 cut-off events. For 41065/41065 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 7668 event pairs, 152 based on Foata normal form. 8/1426 useless extension candidates. Maximal degree in co-relation 14785. Up to 850 conditions per place. [2023-11-17 11:34:01,675 INFO L140 encePairwiseOnDemand]: 93/105 looper letters, 208 selfloop transitions, 148 changer transitions 3/359 dead transitions. [2023-11-17 11:34:01,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 359 transitions, 9510 flow [2023-11-17 11:34:01,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-17 11:34:01,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-17 11:34:01,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 211 transitions. [2023-11-17 11:34:01,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13396825396825396 [2023-11-17 11:34:01,676 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 211 transitions. [2023-11-17 11:34:01,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 211 transitions. [2023-11-17 11:34:01,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:01,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 211 transitions. [2023-11-17 11:34:01,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 14.066666666666666) internal successors, (211), 15 states have internal predecessors, (211), 0 states have call successors, (0), 0 states 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 11:34:01,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states 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 11:34:01,678 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states 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 11:34:01,678 INFO L175 Difference]: Start difference. First operand has 239 places, 323 transitions, 8342 flow. Second operand 15 states and 211 transitions. [2023-11-17 11:34:01,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 359 transitions, 9510 flow [2023-11-17 11:34:01,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 359 transitions, 9376 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-17 11:34:01,862 INFO L231 Difference]: Finished difference. Result has 250 places, 331 transitions, 8792 flow [2023-11-17 11:34:01,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=8208, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=8792, PETRI_PLACES=250, PETRI_TRANSITIONS=331} [2023-11-17 11:34:01,863 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 226 predicate places. [2023-11-17 11:34:01,863 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 331 transitions, 8792 flow [2023-11-17 11:34:01,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:34:01,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:01,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:01,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-17 11:34:02,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:34:02,064 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:02,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:02,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1190843830, now seen corresponding path program 5 times [2023-11-17 11:34:02,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:02,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831052401] [2023-11-17 11:34:02,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:02,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:03,610 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 11:34:03,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:03,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831052401] [2023-11-17 11:34:03,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831052401] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:34:03,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570031030] [2023-11-17 11:34:03,611 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-17 11:34:03,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:34:03,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:34:03,613 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:34:03,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-17 11:34:04,068 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 11:34:04,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:34:04,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-17 11:34:04,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:34:04,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2023-11-17 11:34:04,318 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 11:34:04,318 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:34:04,522 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2023-11-17 11:34:04,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-11-17 11:34:04,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2023-11-17 11:34:04,562 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 11:34:04,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570031030] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:34:04,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:34:04,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:34:04,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797425410] [2023-11-17 11:34:04,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:34:04,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:34:04,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:04,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:34:04,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:34:04,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:34:04,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 331 transitions, 8792 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:34:04,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:04,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:34:04,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:08,368 INFO L124 PetriNetUnfolderBase]: 821/1432 cut-off events. [2023-11-17 11:34:08,368 INFO L125 PetriNetUnfolderBase]: For 39417/39417 co-relation queries the response was YES. [2023-11-17 11:34:08,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15313 conditions, 1432 events. 821/1432 cut-off events. For 39417/39417 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7692 event pairs, 101 based on Foata normal form. 2/1434 useless extension candidates. Maximal degree in co-relation 15165. Up to 506 conditions per place. [2023-11-17 11:34:08,382 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 194 selfloop transitions, 178 changer transitions 1/373 dead transitions. [2023-11-17 11:34:08,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 373 transitions, 10011 flow [2023-11-17 11:34:08,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-17 11:34:08,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-17 11:34:08,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 270 transitions. [2023-11-17 11:34:08,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.12244897959183673 [2023-11-17 11:34:08,384 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 270 transitions. [2023-11-17 11:34:08,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 270 transitions. [2023-11-17 11:34:08,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:08,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 270 transitions. [2023-11-17 11:34:08,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 12.857142857142858) internal successors, (270), 21 states have internal predecessors, (270), 0 states have call successors, (0), 0 states 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 11:34:08,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 105.0) internal successors, (2310), 22 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states 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 11:34:08,387 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 105.0) internal successors, (2310), 22 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states 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 11:34:08,387 INFO L175 Difference]: Start difference. First operand has 250 places, 331 transitions, 8792 flow. Second operand 21 states and 270 transitions. [2023-11-17 11:34:08,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 373 transitions, 10011 flow [2023-11-17 11:34:08,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 373 transitions, 9824 flow, removed 28 selfloop flow, removed 4 redundant places. [2023-11-17 11:34:08,583 INFO L231 Difference]: Finished difference. Result has 267 places, 339 transitions, 9147 flow [2023-11-17 11:34:08,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=8605, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=9147, PETRI_PLACES=267, PETRI_TRANSITIONS=339} [2023-11-17 11:34:08,583 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 243 predicate places. [2023-11-17 11:34:08,583 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 339 transitions, 9147 flow [2023-11-17 11:34:08,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:34:08,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:08,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:08,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-17 11:34:08,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-17 11:34:08,785 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:08,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:08,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1633746099, now seen corresponding path program 8 times [2023-11-17 11:34:08,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:08,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945580177] [2023-11-17 11:34:08,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:08,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:10,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:10,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:10,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945580177] [2023-11-17 11:34:10,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945580177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:10,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:10,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:34:10,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749597661] [2023-11-17 11:34:10,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:10,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:34:10,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:10,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:34:10,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:34:10,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:34:10,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 339 transitions, 9147 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:34:10,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:10,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:34:10,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:11,664 INFO L124 PetriNetUnfolderBase]: 813/1424 cut-off events. [2023-11-17 11:34:11,664 INFO L125 PetriNetUnfolderBase]: For 40698/40698 co-relation queries the response was YES. [2023-11-17 11:34:11,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15426 conditions, 1424 events. 813/1424 cut-off events. For 40698/40698 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7673 event pairs, 122 based on Foata normal form. 6/1430 useless extension candidates. Maximal degree in co-relation 15274. Up to 1031 conditions per place. [2023-11-17 11:34:11,678 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 230 selfloop transitions, 118 changer transitions 3/351 dead transitions. [2023-11-17 11:34:11,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 351 transitions, 9923 flow [2023-11-17 11:34:11,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:34:11,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:34:11,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 113 transitions. [2023-11-17 11:34:11,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13452380952380952 [2023-11-17 11:34:11,679 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 113 transitions. [2023-11-17 11:34:11,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 113 transitions. [2023-11-17 11:34:11,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:11,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 113 transitions. [2023-11-17 11:34:11,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states 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 11:34:11,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:34:11,680 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:34:11,680 INFO L175 Difference]: Start difference. First operand has 267 places, 339 transitions, 9147 flow. Second operand 8 states and 113 transitions. [2023-11-17 11:34:11,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 351 transitions, 9923 flow [2023-11-17 11:34:11,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 351 transitions, 9541 flow, removed 25 selfloop flow, removed 13 redundant places. [2023-11-17 11:34:11,866 INFO L231 Difference]: Finished difference. Result has 262 places, 334 transitions, 8825 flow [2023-11-17 11:34:11,866 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=8643, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8825, PETRI_PLACES=262, PETRI_TRANSITIONS=334} [2023-11-17 11:34:11,867 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 238 predicate places. [2023-11-17 11:34:11,867 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 334 transitions, 8825 flow [2023-11-17 11:34:11,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:34:11,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:11,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:11,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-17 11:34:11,867 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:11,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:11,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1624507045, now seen corresponding path program 4 times [2023-11-17 11:34:11,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:11,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960222180] [2023-11-17 11:34:11,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:11,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:12,775 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 11:34:12,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:12,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960222180] [2023-11-17 11:34:12,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960222180] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:34:12,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087748880] [2023-11-17 11:34:12,776 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-17 11:34:12,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:34:12,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:34:12,777 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:34:12,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-17 11:34:13,489 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-17 11:34:13,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:34:13,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 53 conjunts are in the unsatisfiable core [2023-11-17 11:34:13,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:34:13,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-17 11:34:13,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 46 [2023-11-17 11:34:13,788 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 11:34:13,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:34:13,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 116 [2023-11-17 11:34:13,972 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 11:34:13,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087748880] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-17 11:34:13,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-17 11:34:13,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 7] total 18 [2023-11-17 11:34:13,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43267381] [2023-11-17 11:34:13,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:13,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 11:34:13,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:13,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 11:34:13,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2023-11-17 11:34:13,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:34:13,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 334 transitions, 8825 flow. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 11:34:13,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:13,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:34:13,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:14,715 INFO L124 PetriNetUnfolderBase]: 801/1406 cut-off events. [2023-11-17 11:34:14,715 INFO L125 PetriNetUnfolderBase]: For 41098/41098 co-relation queries the response was YES. [2023-11-17 11:34:14,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15145 conditions, 1406 events. 801/1406 cut-off events. For 41098/41098 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 7576 event pairs, 171 based on Foata normal form. 10/1416 useless extension candidates. Maximal degree in co-relation 14993. Up to 895 conditions per place. [2023-11-17 11:34:14,729 INFO L140 encePairwiseOnDemand]: 96/105 looper letters, 147 selfloop transitions, 186 changer transitions 9/342 dead transitions. [2023-11-17 11:34:14,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 342 transitions, 9632 flow [2023-11-17 11:34:14,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 11:34:14,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 11:34:14,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2023-11-17 11:34:14,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.16428571428571428 [2023-11-17 11:34:14,730 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 69 transitions. [2023-11-17 11:34:14,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 69 transitions. [2023-11-17 11:34:14,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:14,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 69 transitions. [2023-11-17 11:34:14,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 11:34:14,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 0 states have call successors, (0), 0 states 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 11:34:14,731 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 0 states have call successors, (0), 0 states 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 11:34:14,731 INFO L175 Difference]: Start difference. First operand has 262 places, 334 transitions, 8825 flow. Second operand 4 states and 69 transitions. [2023-11-17 11:34:14,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 342 transitions, 9632 flow [2023-11-17 11:34:14,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 342 transitions, 9495 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-11-17 11:34:14,929 INFO L231 Difference]: Finished difference. Result has 263 places, 329 transitions, 9150 flow [2023-11-17 11:34:14,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=8689, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=9150, PETRI_PLACES=263, PETRI_TRANSITIONS=329} [2023-11-17 11:34:14,930 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 239 predicate places. [2023-11-17 11:34:14,930 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 329 transitions, 9150 flow [2023-11-17 11:34:14,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 11:34:14,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:14,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:14,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-17 11:34:15,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-17 11:34:15,134 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:15,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:15,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1448516616, now seen corresponding path program 9 times [2023-11-17 11:34:15,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:15,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618700881] [2023-11-17 11:34:15,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:15,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:16,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:16,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618700881] [2023-11-17 11:34:16,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618700881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:16,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:16,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:34:16,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507433994] [2023-11-17 11:34:16,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:16,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:34:16,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:16,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:34:16,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:34:16,898 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:34:16,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 329 transitions, 9150 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:34:16,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:16,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:34:16,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:18,227 INFO L124 PetriNetUnfolderBase]: 782/1371 cut-off events. [2023-11-17 11:34:18,227 INFO L125 PetriNetUnfolderBase]: For 42818/42818 co-relation queries the response was YES. [2023-11-17 11:34:18,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15462 conditions, 1371 events. 782/1371 cut-off events. For 42818/42818 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 7330 event pairs, 279 based on Foata normal form. 2/1373 useless extension candidates. Maximal degree in co-relation 15304. Up to 1244 conditions per place. [2023-11-17 11:34:18,242 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 285 selfloop transitions, 54 changer transitions 1/340 dead transitions. [2023-11-17 11:34:18,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 340 transitions, 9852 flow [2023-11-17 11:34:18,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:34:18,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:34:18,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 113 transitions. [2023-11-17 11:34:18,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13452380952380952 [2023-11-17 11:34:18,243 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 113 transitions. [2023-11-17 11:34:18,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 113 transitions. [2023-11-17 11:34:18,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:18,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 113 transitions. [2023-11-17 11:34:18,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states 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 11:34:18,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:34:18,244 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:34:18,244 INFO L175 Difference]: Start difference. First operand has 263 places, 329 transitions, 9150 flow. Second operand 8 states and 113 transitions. [2023-11-17 11:34:18,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 340 transitions, 9852 flow [2023-11-17 11:34:18,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 340 transitions, 9770 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-17 11:34:18,450 INFO L231 Difference]: Finished difference. Result has 265 places, 327 transitions, 9104 flow [2023-11-17 11:34:18,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=8996, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9104, PETRI_PLACES=265, PETRI_TRANSITIONS=327} [2023-11-17 11:34:18,450 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 241 predicate places. [2023-11-17 11:34:18,450 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 327 transitions, 9104 flow [2023-11-17 11:34:18,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:34:18,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:18,451 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:18,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-17 11:34:18,451 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:18,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:18,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1633703815, now seen corresponding path program 5 times [2023-11-17 11:34:18,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:18,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562332808] [2023-11-17 11:34:18,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:18,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:20,153 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 11:34:20,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:20,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562332808] [2023-11-17 11:34:20,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562332808] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:34:20,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792408582] [2023-11-17 11:34:20,154 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-17 11:34:20,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:34:20,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:34:20,155 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:34:20,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-17 11:34:20,687 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 11:34:20,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:34:20,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-17 11:34:20,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:34:20,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2023-11-17 11:34:20,905 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 11:34:20,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:34:21,137 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 11:34:21,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792408582] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:34:21,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:34:21,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:34:21,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727868430] [2023-11-17 11:34:21,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:34:21,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:34:21,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:21,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:34:21,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:34:21,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:34:21,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 327 transitions, 9104 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:34:21,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:21,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:34:21,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:25,068 INFO L124 PetriNetUnfolderBase]: 779/1366 cut-off events. [2023-11-17 11:34:25,069 INFO L125 PetriNetUnfolderBase]: For 45283/45283 co-relation queries the response was YES. [2023-11-17 11:34:25,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15386 conditions, 1366 events. 779/1366 cut-off events. For 45283/45283 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 7331 event pairs, 166 based on Foata normal form. 6/1372 useless extension candidates. Maximal degree in co-relation 15231. Up to 848 conditions per place. [2023-11-17 11:34:25,082 INFO L140 encePairwiseOnDemand]: 93/105 looper letters, 243 selfloop transitions, 133 changer transitions 2/378 dead transitions. [2023-11-17 11:34:25,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 378 transitions, 10382 flow [2023-11-17 11:34:25,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-17 11:34:25,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-17 11:34:25,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 306 transitions. [2023-11-17 11:34:25,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1267080745341615 [2023-11-17 11:34:25,085 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 306 transitions. [2023-11-17 11:34:25,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 306 transitions. [2023-11-17 11:34:25,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:25,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 306 transitions. [2023-11-17 11:34:25,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 13.304347826086957) internal successors, (306), 23 states have internal predecessors, (306), 0 states have call successors, (0), 0 states 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 11:34:25,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 105.0) internal successors, (2520), 24 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states 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 11:34:25,088 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 105.0) internal successors, (2520), 24 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states 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 11:34:25,088 INFO L175 Difference]: Start difference. First operand has 265 places, 327 transitions, 9104 flow. Second operand 23 states and 306 transitions. [2023-11-17 11:34:25,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 378 transitions, 10382 flow [2023-11-17 11:34:25,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 378 transitions, 10274 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-17 11:34:25,307 INFO L231 Difference]: Finished difference. Result has 285 places, 332 transitions, 9401 flow [2023-11-17 11:34:25,308 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=8864, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=9401, PETRI_PLACES=285, PETRI_TRANSITIONS=332} [2023-11-17 11:34:25,308 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 261 predicate places. [2023-11-17 11:34:25,308 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 332 transitions, 9401 flow [2023-11-17 11:34:25,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:34:25,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:25,309 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:25,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-17 11:34:25,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-17 11:34:25,523 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:25,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:25,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1634149286, now seen corresponding path program 10 times [2023-11-17 11:34:25,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:25,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578674046] [2023-11-17 11:34:25,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:25,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:27,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:27,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:27,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578674046] [2023-11-17 11:34:27,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578674046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:27,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:27,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:34:27,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795852627] [2023-11-17 11:34:27,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:27,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:34:27,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:27,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:34:27,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:34:27,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:34:27,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 332 transitions, 9401 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:34:27,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:27,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:34:27,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:28,631 INFO L124 PetriNetUnfolderBase]: 768/1345 cut-off events. [2023-11-17 11:34:28,631 INFO L125 PetriNetUnfolderBase]: For 43836/43836 co-relation queries the response was YES. [2023-11-17 11:34:28,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15443 conditions, 1345 events. 768/1345 cut-off events. For 43836/43836 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 7144 event pairs, 267 based on Foata normal form. 2/1347 useless extension candidates. Maximal degree in co-relation 15285. Up to 1212 conditions per place. [2023-11-17 11:34:28,646 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 283 selfloop transitions, 55 changer transitions 4/342 dead transitions. [2023-11-17 11:34:28,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 342 transitions, 10120 flow [2023-11-17 11:34:28,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:34:28,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:34:28,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 110 transitions. [2023-11-17 11:34:28,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13095238095238096 [2023-11-17 11:34:28,647 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 110 transitions. [2023-11-17 11:34:28,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 110 transitions. [2023-11-17 11:34:28,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:28,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 110 transitions. [2023-11-17 11:34:28,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states 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 11:34:28,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:34:28,649 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:34:28,649 INFO L175 Difference]: Start difference. First operand has 285 places, 332 transitions, 9401 flow. Second operand 8 states and 110 transitions. [2023-11-17 11:34:28,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 342 transitions, 10120 flow [2023-11-17 11:34:28,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 342 transitions, 9888 flow, removed 14 selfloop flow, removed 12 redundant places. [2023-11-17 11:34:28,888 INFO L231 Difference]: Finished difference. Result has 280 places, 328 transitions, 9164 flow [2023-11-17 11:34:28,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9106, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9164, PETRI_PLACES=280, PETRI_TRANSITIONS=328} [2023-11-17 11:34:28,889 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 256 predicate places. [2023-11-17 11:34:28,889 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 328 transitions, 9164 flow [2023-11-17 11:34:28,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:34:28,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:28,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:28,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-17 11:34:28,890 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:28,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:28,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1634133910, now seen corresponding path program 6 times [2023-11-17 11:34:28,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:28,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647982134] [2023-11-17 11:34:28,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:28,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:30,793 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 11:34:30,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:30,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647982134] [2023-11-17 11:34:30,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647982134] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:34:30,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205518047] [2023-11-17 11:34:30,793 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-17 11:34:30,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:34:30,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:34:30,794 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:34:30,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-17 11:34:31,746 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2023-11-17 11:34:31,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:34:31,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-17 11:34:31,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:34:31,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 62 [2023-11-17 11:34:32,073 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 11:34:32,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:34:32,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:32,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205518047] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-17 11:34:32,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-17 11:34:32,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 20 [2023-11-17 11:34:32,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837297582] [2023-11-17 11:34:32,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:32,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 11:34:32,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:32,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 11:34:32,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:34:32,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:34:32,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 328 transitions, 9164 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 11:34:32,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:32,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:34:32,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:33,359 INFO L124 PetriNetUnfolderBase]: 789/1384 cut-off events. [2023-11-17 11:34:33,359 INFO L125 PetriNetUnfolderBase]: For 43244/43244 co-relation queries the response was YES. [2023-11-17 11:34:33,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15725 conditions, 1384 events. 789/1384 cut-off events. For 43244/43244 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 7429 event pairs, 165 based on Foata normal form. 2/1386 useless extension candidates. Maximal degree in co-relation 15567. Up to 748 conditions per place. [2023-11-17 11:34:33,373 INFO L140 encePairwiseOnDemand]: 93/105 looper letters, 177 selfloop transitions, 180 changer transitions 3/360 dead transitions. [2023-11-17 11:34:33,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 360 transitions, 10358 flow [2023-11-17 11:34:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:34:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:34:33,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 123 transitions. [2023-11-17 11:34:33,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.14642857142857144 [2023-11-17 11:34:33,375 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 123 transitions. [2023-11-17 11:34:33,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 123 transitions. [2023-11-17 11:34:33,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:33,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 123 transitions. [2023-11-17 11:34:33,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 11:34:33,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:34:33,377 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:34:33,377 INFO L175 Difference]: Start difference. First operand has 280 places, 328 transitions, 9164 flow. Second operand 8 states and 123 transitions. [2023-11-17 11:34:33,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 360 transitions, 10358 flow [2023-11-17 11:34:33,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 360 transitions, 10263 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-17 11:34:33,652 INFO L231 Difference]: Finished difference. Result has 281 places, 339 transitions, 9762 flow [2023-11-17 11:34:33,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9041, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9762, PETRI_PLACES=281, PETRI_TRANSITIONS=339} [2023-11-17 11:34:33,653 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 257 predicate places. [2023-11-17 11:34:33,653 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 339 transitions, 9762 flow [2023-11-17 11:34:33,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 11:34:33,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:33,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:33,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-17 11:34:33,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-17 11:34:33,863 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:33,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:33,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1952867690, now seen corresponding path program 7 times [2023-11-17 11:34:33,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:33,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088630712] [2023-11-17 11:34:33,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:33,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:34,969 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 11:34:34,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:34,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088630712] [2023-11-17 11:34:34,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088630712] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:34:34,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905159077] [2023-11-17 11:34:34,970 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-17 11:34:34,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:34:34,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:34:34,971 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:34:34,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-17 11:34:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:35,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-17 11:34:35,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:34:35,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 11:34:35,554 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 50 treesize of output 39 [2023-11-17 11:34:35,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 35 [2023-11-17 11:34:35,745 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 11:34:35,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:34:36,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2023-11-17 11:34:36,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-11-17 11:34:36,097 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-17 11:34:36,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:36,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905159077] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:34:36,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:34:36,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 23 [2023-11-17 11:34:36,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778174075] [2023-11-17 11:34:36,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:34:36,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-17 11:34:36,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:36,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-17 11:34:36,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2023-11-17 11:34:36,131 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:34:36,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 339 transitions, 9762 flow. Second operand has 24 states, 24 states have (on average 9.416666666666666) internal successors, (226), 24 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 11:34:36,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:36,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:34:36,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:39,890 INFO L124 PetriNetUnfolderBase]: 793/1398 cut-off events. [2023-11-17 11:34:39,890 INFO L125 PetriNetUnfolderBase]: For 48687/48687 co-relation queries the response was YES. [2023-11-17 11:34:39,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16470 conditions, 1398 events. 793/1398 cut-off events. For 48687/48687 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 7603 event pairs, 92 based on Foata normal form. 6/1404 useless extension candidates. Maximal degree in co-relation 16276. Up to 402 conditions per place. [2023-11-17 11:34:39,906 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 171 selfloop transitions, 200 changer transitions 9/380 dead transitions. [2023-11-17 11:34:39,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 380 transitions, 11120 flow [2023-11-17 11:34:39,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 11:34:39,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-17 11:34:39,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 182 transitions. [2023-11-17 11:34:39,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13333333333333333 [2023-11-17 11:34:39,908 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 182 transitions. [2023-11-17 11:34:39,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 182 transitions. [2023-11-17 11:34:39,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:39,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 182 transitions. [2023-11-17 11:34:39,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 14.0) internal successors, (182), 13 states have internal predecessors, (182), 0 states have call successors, (0), 0 states 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 11:34:39,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states 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 11:34:39,909 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states 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 11:34:39,909 INFO L175 Difference]: Start difference. First operand has 281 places, 339 transitions, 9762 flow. Second operand 13 states and 182 transitions. [2023-11-17 11:34:39,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 380 transitions, 11120 flow [2023-11-17 11:34:40,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 380 transitions, 11044 flow, removed 18 selfloop flow, removed 1 redundant places. [2023-11-17 11:34:40,119 INFO L231 Difference]: Finished difference. Result has 296 places, 344 transitions, 10373 flow [2023-11-17 11:34:40,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9657, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10373, PETRI_PLACES=296, PETRI_TRANSITIONS=344} [2023-11-17 11:34:40,120 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 272 predicate places. [2023-11-17 11:34:40,120 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 344 transitions, 10373 flow [2023-11-17 11:34:40,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.416666666666666) internal successors, (226), 24 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 11:34:40,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:40,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:40,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-17 11:34:40,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:34:40,328 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:40,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:40,329 INFO L85 PathProgramCache]: Analyzing trace with hash 191784766, now seen corresponding path program 11 times [2023-11-17 11:34:40,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:40,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373324462] [2023-11-17 11:34:40,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:40,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:41,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:41,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:41,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373324462] [2023-11-17 11:34:41,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373324462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:41,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:41,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:34:41,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677854633] [2023-11-17 11:34:41,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:41,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:34:41,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:41,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:34:41,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:34:41,510 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:34:41,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 344 transitions, 10373 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:34:41,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:41,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:34:41,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:42,673 INFO L124 PetriNetUnfolderBase]: 779/1370 cut-off events. [2023-11-17 11:34:42,673 INFO L125 PetriNetUnfolderBase]: For 54324/54324 co-relation queries the response was YES. [2023-11-17 11:34:42,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16711 conditions, 1370 events. 779/1370 cut-off events. For 54324/54324 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 7385 event pairs, 204 based on Foata normal form. 2/1372 useless extension candidates. Maximal degree in co-relation 16502. Up to 871 conditions per place. [2023-11-17 11:34:42,688 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 247 selfloop transitions, 106 changer transitions 3/356 dead transitions. [2023-11-17 11:34:42,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 356 transitions, 11136 flow [2023-11-17 11:34:42,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:34:42,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:34:42,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 116 transitions. [2023-11-17 11:34:42,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1380952380952381 [2023-11-17 11:34:42,689 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 116 transitions. [2023-11-17 11:34:42,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 116 transitions. [2023-11-17 11:34:42,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:42,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 116 transitions. [2023-11-17 11:34:42,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 11:34:42,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:34:42,690 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:34:42,691 INFO L175 Difference]: Start difference. First operand has 296 places, 344 transitions, 10373 flow. Second operand 8 states and 116 transitions. [2023-11-17 11:34:42,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 356 transitions, 11136 flow [2023-11-17 11:34:42,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 356 transitions, 10656 flow, removed 28 selfloop flow, removed 7 redundant places. [2023-11-17 11:34:42,921 INFO L231 Difference]: Finished difference. Result has 294 places, 340 transitions, 9962 flow [2023-11-17 11:34:42,922 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9799, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9962, PETRI_PLACES=294, PETRI_TRANSITIONS=340} [2023-11-17 11:34:42,922 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 270 predicate places. [2023-11-17 11:34:42,922 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 340 transitions, 9962 flow [2023-11-17 11:34:42,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:34:42,922 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:42,923 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:42,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-11-17 11:34:42,923 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:42,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:42,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1581982761, now seen corresponding path program 9 times [2023-11-17 11:34:42,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:42,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576797358] [2023-11-17 11:34:42,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:42,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:44,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:44,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576797358] [2023-11-17 11:34:44,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576797358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:44,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:44,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-17 11:34:44,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296062670] [2023-11-17 11:34:44,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:44,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-17 11:34:44,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:44,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-17 11:34:44,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-17 11:34:44,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:34:44,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 340 transitions, 9962 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 11:34:44,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:44,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:34:44,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:46,396 INFO L124 PetriNetUnfolderBase]: 796/1393 cut-off events. [2023-11-17 11:34:46,396 INFO L125 PetriNetUnfolderBase]: For 49301/49301 co-relation queries the response was YES. [2023-11-17 11:34:46,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16746 conditions, 1393 events. 796/1393 cut-off events. For 49301/49301 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 7501 event pairs, 92 based on Foata normal form. 2/1395 useless extension candidates. Maximal degree in co-relation 16567. Up to 636 conditions per place. [2023-11-17 11:34:46,413 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 174 selfloop transitions, 196 changer transitions 3/373 dead transitions. [2023-11-17 11:34:46,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 373 transitions, 11263 flow [2023-11-17 11:34:46,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 11:34:46,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-17 11:34:46,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 158 transitions. [2023-11-17 11:34:46,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1367965367965368 [2023-11-17 11:34:46,415 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 158 transitions. [2023-11-17 11:34:46,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 158 transitions. [2023-11-17 11:34:46,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:46,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 158 transitions. [2023-11-17 11:34:46,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 11 states have internal predecessors, (158), 0 states have call successors, (0), 0 states 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 11:34:46,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states 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 11:34:46,416 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states 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 11:34:46,416 INFO L175 Difference]: Start difference. First operand has 294 places, 340 transitions, 9962 flow. Second operand 11 states and 158 transitions. [2023-11-17 11:34:46,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 373 transitions, 11263 flow [2023-11-17 11:34:46,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 373 transitions, 11059 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-17 11:34:46,635 INFO L231 Difference]: Finished difference. Result has 299 places, 348 transitions, 10477 flow [2023-11-17 11:34:46,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9758, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10477, PETRI_PLACES=299, PETRI_TRANSITIONS=348} [2023-11-17 11:34:46,636 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 275 predicate places. [2023-11-17 11:34:46,636 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 348 transitions, 10477 flow [2023-11-17 11:34:46,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 11:34:46,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:46,636 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:46,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-11-17 11:34:46,636 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:46,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:46,637 INFO L85 PathProgramCache]: Analyzing trace with hash 181953736, now seen corresponding path program 12 times [2023-11-17 11:34:46,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:46,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717416909] [2023-11-17 11:34:46,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:46,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:47,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:47,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:47,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717416909] [2023-11-17 11:34:47,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717416909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:47,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:47,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 11:34:47,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801799726] [2023-11-17 11:34:47,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:47,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 11:34:47,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:47,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 11:34:47,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-17 11:34:47,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 105 [2023-11-17 11:34:47,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 348 transitions, 10477 flow. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 11:34:47,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:47,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 105 [2023-11-17 11:34:47,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:47,995 INFO L124 PetriNetUnfolderBase]: 780/1365 cut-off events. [2023-11-17 11:34:47,995 INFO L125 PetriNetUnfolderBase]: For 53292/53292 co-relation queries the response was YES. [2023-11-17 11:34:48,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16780 conditions, 1365 events. 780/1365 cut-off events. For 53292/53292 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 7281 event pairs, 129 based on Foata normal form. 4/1369 useless extension candidates. Maximal degree in co-relation 16595. Up to 733 conditions per place. [2023-11-17 11:34:48,011 INFO L140 encePairwiseOnDemand]: 96/105 looper letters, 224 selfloop transitions, 139 changer transitions 6/369 dead transitions. [2023-11-17 11:34:48,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 369 transitions, 11384 flow [2023-11-17 11:34:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:34:48,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:34:48,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 137 transitions. [2023-11-17 11:34:48,013 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1630952380952381 [2023-11-17 11:34:48,013 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 137 transitions. [2023-11-17 11:34:48,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 137 transitions. [2023-11-17 11:34:48,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:48,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 137 transitions. [2023-11-17 11:34:48,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states 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 11:34:48,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:34:48,018 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:34:48,018 INFO L175 Difference]: Start difference. First operand has 299 places, 348 transitions, 10477 flow. Second operand 8 states and 137 transitions. [2023-11-17 11:34:48,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 369 transitions, 11384 flow [2023-11-17 11:34:48,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 369 transitions, 11141 flow, removed 40 selfloop flow, removed 6 redundant places. [2023-11-17 11:34:48,323 INFO L231 Difference]: Finished difference. Result has 297 places, 338 transitions, 10208 flow [2023-11-17 11:34:48,324 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10067, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10208, PETRI_PLACES=297, PETRI_TRANSITIONS=338} [2023-11-17 11:34:48,324 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 273 predicate places. [2023-11-17 11:34:48,324 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 338 transitions, 10208 flow [2023-11-17 11:34:48,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 11:34:48,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:48,325 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:48,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-11-17 11:34:48,325 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:48,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:48,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1943927328, now seen corresponding path program 13 times [2023-11-17 11:34:48,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:48,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332625892] [2023-11-17 11:34:48,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:48,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:49,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:49,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332625892] [2023-11-17 11:34:49,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332625892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:49,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:49,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:34:49,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934640789] [2023-11-17 11:34:49,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:49,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:34:49,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:49,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:34:49,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:34:49,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:34:49,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 338 transitions, 10208 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:34:49,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:49,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:34:49,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:51,618 INFO L124 PetriNetUnfolderBase]: 773/1352 cut-off events. [2023-11-17 11:34:51,618 INFO L125 PetriNetUnfolderBase]: For 52687/52687 co-relation queries the response was YES. [2023-11-17 11:34:51,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16404 conditions, 1352 events. 773/1352 cut-off events. For 52687/52687 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 7153 event pairs, 187 based on Foata normal form. 2/1354 useless extension candidates. Maximal degree in co-relation 16222. Up to 900 conditions per place. [2023-11-17 11:34:51,633 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 249 selfloop transitions, 105 changer transitions 3/357 dead transitions. [2023-11-17 11:34:51,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 357 transitions, 11088 flow [2023-11-17 11:34:51,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 11:34:51,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-17 11:34:51,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 131 transitions. [2023-11-17 11:34:51,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13862433862433862 [2023-11-17 11:34:51,634 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 131 transitions. [2023-11-17 11:34:51,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 131 transitions. [2023-11-17 11:34:51,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:51,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 131 transitions. [2023-11-17 11:34:51,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 14.555555555555555) internal successors, (131), 9 states have internal predecessors, (131), 0 states have call successors, (0), 0 states 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 11:34:51,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 11:34:51,635 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 11:34:51,635 INFO L175 Difference]: Start difference. First operand has 297 places, 338 transitions, 10208 flow. Second operand 9 states and 131 transitions. [2023-11-17 11:34:51,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 357 transitions, 11088 flow [2023-11-17 11:34:51,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 357 transitions, 10686 flow, removed 14 selfloop flow, removed 13 redundant places. [2023-11-17 11:34:51,923 INFO L231 Difference]: Finished difference. Result has 288 places, 334 transitions, 9910 flow [2023-11-17 11:34:51,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9751, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9910, PETRI_PLACES=288, PETRI_TRANSITIONS=334} [2023-11-17 11:34:51,924 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 264 predicate places. [2023-11-17 11:34:51,924 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 334 transitions, 9910 flow [2023-11-17 11:34:51,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:34:51,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:51,924 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:51,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-11-17 11:34:51,925 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:51,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:51,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1943955725, now seen corresponding path program 10 times [2023-11-17 11:34:51,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:51,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515821483] [2023-11-17 11:34:51,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:51,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:53,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:53,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:53,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515821483] [2023-11-17 11:34:53,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515821483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:53,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:53,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:34:53,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799140048] [2023-11-17 11:34:53,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:53,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:34:53,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:53,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:34:53,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:34:53,686 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:34:53,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 334 transitions, 9910 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:34:53,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:53,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:34:53,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:55,014 INFO L124 PetriNetUnfolderBase]: 764/1333 cut-off events. [2023-11-17 11:34:55,014 INFO L125 PetriNetUnfolderBase]: For 46122/46122 co-relation queries the response was YES. [2023-11-17 11:34:55,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15951 conditions, 1333 events. 764/1333 cut-off events. For 46122/46122 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 7017 event pairs, 96 based on Foata normal form. 2/1335 useless extension candidates. Maximal degree in co-relation 15771. Up to 940 conditions per place. [2023-11-17 11:34:55,031 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 226 selfloop transitions, 118 changer transitions 1/345 dead transitions. [2023-11-17 11:34:55,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 345 transitions, 10689 flow [2023-11-17 11:34:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:34:55,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:34:55,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 111 transitions. [2023-11-17 11:34:55,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13214285714285715 [2023-11-17 11:34:55,032 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 111 transitions. [2023-11-17 11:34:55,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 111 transitions. [2023-11-17 11:34:55,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:55,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 111 transitions. [2023-11-17 11:34:55,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 11:34:55,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:34:55,033 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:34:55,034 INFO L175 Difference]: Start difference. First operand has 288 places, 334 transitions, 9910 flow. Second operand 8 states and 111 transitions. [2023-11-17 11:34:55,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 345 transitions, 10689 flow [2023-11-17 11:34:55,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 345 transitions, 10380 flow, removed 8 selfloop flow, removed 11 redundant places. [2023-11-17 11:34:55,340 INFO L231 Difference]: Finished difference. Result has 280 places, 331 transitions, 9756 flow [2023-11-17 11:34:55,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9520, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9756, PETRI_PLACES=280, PETRI_TRANSITIONS=331} [2023-11-17 11:34:55,341 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 256 predicate places. [2023-11-17 11:34:55,341 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 331 transitions, 9756 flow [2023-11-17 11:34:55,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:34:55,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:55,342 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:55,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-11-17 11:34:55,342 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:55,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:55,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1943942704, now seen corresponding path program 8 times [2023-11-17 11:34:55,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:55,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088163511] [2023-11-17 11:34:55,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:55,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:56,900 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 11:34:56,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:56,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088163511] [2023-11-17 11:34:56,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088163511] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:34:56,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536115197] [2023-11-17 11:34:56,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 11:34:56,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:34:56,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:34:56,901 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:34:56,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-17 11:34:57,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 11:34:57,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:34:57,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-17 11:34:57,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:34:57,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-17 11:34:57,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2023-11-17 11:34:57,883 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 11:34:57,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:34:58,212 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2023-11-17 11:34:58,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 73 [2023-11-17 11:34:58,225 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 11:34:58,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 66 [2023-11-17 11:34:58,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2023-11-17 11:34:58,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-11-17 11:34:58,331 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 11:34:58,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536115197] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:34:58,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:34:58,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2023-11-17 11:34:58,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478099150] [2023-11-17 11:34:58,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:34:58,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-17 11:34:58,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:58,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-17 11:34:58,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2023-11-17 11:34:58,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:34:58,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 331 transitions, 9756 flow. Second operand has 22 states, 22 states have (on average 9.545454545454545) internal successors, (210), 22 states have internal predecessors, (210), 0 states have call successors, (0), 0 states 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 11:34:58,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:58,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:34:58,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:01,323 INFO L124 PetriNetUnfolderBase]: 762/1331 cut-off events. [2023-11-17 11:35:01,323 INFO L125 PetriNetUnfolderBase]: For 44791/44791 co-relation queries the response was YES. [2023-11-17 11:35:01,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15660 conditions, 1331 events. 762/1331 cut-off events. For 44791/44791 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 7002 event pairs, 71 based on Foata normal form. 2/1333 useless extension candidates. Maximal degree in co-relation 15482. Up to 560 conditions per place. [2023-11-17 11:35:01,337 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 182 selfloop transitions, 173 changer transitions 2/357 dead transitions. [2023-11-17 11:35:01,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 357 transitions, 10737 flow [2023-11-17 11:35:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 11:35:01,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-17 11:35:01,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 176 transitions. [2023-11-17 11:35:01,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.12893772893772895 [2023-11-17 11:35:01,338 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 176 transitions. [2023-11-17 11:35:01,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 176 transitions. [2023-11-17 11:35:01,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:01,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 176 transitions. [2023-11-17 11:35:01,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 13.538461538461538) internal successors, (176), 13 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 11:35:01,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states 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 11:35:01,340 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states 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 11:35:01,340 INFO L175 Difference]: Start difference. First operand has 280 places, 331 transitions, 9756 flow. Second operand 13 states and 176 transitions. [2023-11-17 11:35:01,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 357 transitions, 10737 flow [2023-11-17 11:35:01,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 357 transitions, 10491 flow, removed 4 selfloop flow, removed 7 redundant places. [2023-11-17 11:35:01,537 INFO L231 Difference]: Finished difference. Result has 285 places, 330 transitions, 9828 flow [2023-11-17 11:35:01,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9482, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=9828, PETRI_PLACES=285, PETRI_TRANSITIONS=330} [2023-11-17 11:35:01,538 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 261 predicate places. [2023-11-17 11:35:01,538 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 330 transitions, 9828 flow [2023-11-17 11:35:01,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.545454545454545) internal successors, (210), 22 states have internal predecessors, (210), 0 states have call successors, (0), 0 states 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 11:35:01,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:01,538 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:01,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-17 11:35:01,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:35:01,739 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:01,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:01,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1592694500, now seen corresponding path program 9 times [2023-11-17 11:35:01,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:01,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998061783] [2023-11-17 11:35:01,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:01,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:03,366 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 11:35:03,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:03,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998061783] [2023-11-17 11:35:03,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998061783] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:35:03,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543621314] [2023-11-17 11:35:03,367 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-17 11:35:03,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:35:03,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:35:03,368 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:35:03,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-17 11:35:04,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-17 11:35:04,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:35:04,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-17 11:35:04,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:35:04,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 11:35:04,349 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 50 treesize of output 39 [2023-11-17 11:35:04,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 35 [2023-11-17 11:35:04,551 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 11:35:04,551 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:35:04,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2023-11-17 11:35:04,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-11-17 11:35:04,914 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-17 11:35:04,939 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 11:35:04,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543621314] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:35:04,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:35:04,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 23 [2023-11-17 11:35:04,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539595704] [2023-11-17 11:35:04,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:35:04,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-17 11:35:04,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:04,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-17 11:35:04,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=486, Unknown=2, NotChecked=0, Total=552 [2023-11-17 11:35:04,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:04,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 330 transitions, 9828 flow. Second operand has 24 states, 24 states have (on average 9.416666666666666) internal successors, (226), 24 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 11:35:04,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:04,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:04,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:09,960 INFO L124 PetriNetUnfolderBase]: 857/1479 cut-off events. [2023-11-17 11:35:09,960 INFO L125 PetriNetUnfolderBase]: For 53774/53774 co-relation queries the response was YES. [2023-11-17 11:35:09,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17733 conditions, 1479 events. 857/1479 cut-off events. For 53774/53774 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7882 event pairs, 60 based on Foata normal form. 4/1483 useless extension candidates. Maximal degree in co-relation 17531. Up to 466 conditions per place. [2023-11-17 11:35:09,977 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 148 selfloop transitions, 268 changer transitions 9/425 dead transitions. [2023-11-17 11:35:09,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 425 transitions, 12628 flow [2023-11-17 11:35:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-17 11:35:09,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-17 11:35:09,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 310 transitions. [2023-11-17 11:35:09,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.12836438923395446 [2023-11-17 11:35:09,978 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 310 transitions. [2023-11-17 11:35:09,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 310 transitions. [2023-11-17 11:35:09,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:09,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 310 transitions. [2023-11-17 11:35:09,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 13.478260869565217) internal successors, (310), 23 states have internal predecessors, (310), 0 states have call successors, (0), 0 states 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 11:35:09,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 105.0) internal successors, (2520), 24 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states 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 11:35:09,981 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 105.0) internal successors, (2520), 24 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states 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 11:35:09,981 INFO L175 Difference]: Start difference. First operand has 285 places, 330 transitions, 9828 flow. Second operand 23 states and 310 transitions. [2023-11-17 11:35:09,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 425 transitions, 12628 flow [2023-11-17 11:35:10,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 425 transitions, 12180 flow, removed 18 selfloop flow, removed 13 redundant places. [2023-11-17 11:35:10,236 INFO L231 Difference]: Finished difference. Result has 300 places, 372 transitions, 11431 flow [2023-11-17 11:35:10,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9342, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=223, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=11431, PETRI_PLACES=300, PETRI_TRANSITIONS=372} [2023-11-17 11:35:10,236 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 276 predicate places. [2023-11-17 11:35:10,237 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 372 transitions, 11431 flow [2023-11-17 11:35:10,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.416666666666666) internal successors, (226), 24 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 11:35:10,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:10,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:10,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-17 11:35:10,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-17 11:35:10,437 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:10,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:10,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1582357551, now seen corresponding path program 11 times [2023-11-17 11:35:10,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:10,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169396863] [2023-11-17 11:35:10,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:10,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:12,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:12,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:12,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169396863] [2023-11-17 11:35:12,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169396863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:12,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:12,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-17 11:35:12,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326612779] [2023-11-17 11:35:12,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:12,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-17 11:35:12,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:12,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-17 11:35:12,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-17 11:35:12,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:12,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 372 transitions, 11431 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 11:35:12,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:12,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:12,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:14,285 INFO L124 PetriNetUnfolderBase]: 848/1458 cut-off events. [2023-11-17 11:35:14,285 INFO L125 PetriNetUnfolderBase]: For 59806/59806 co-relation queries the response was YES. [2023-11-17 11:35:14,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18274 conditions, 1458 events. 848/1458 cut-off events. For 59806/59806 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 7737 event pairs, 169 based on Foata normal form. 2/1460 useless extension candidates. Maximal degree in co-relation 18064. Up to 783 conditions per place. [2023-11-17 11:35:14,300 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 192 selfloop transitions, 205 changer transitions 7/404 dead transitions. [2023-11-17 11:35:14,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 404 transitions, 12644 flow [2023-11-17 11:35:14,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-17 11:35:14,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-17 11:35:14,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 187 transitions. [2023-11-17 11:35:14,302 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1272108843537415 [2023-11-17 11:35:14,302 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 187 transitions. [2023-11-17 11:35:14,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 187 transitions. [2023-11-17 11:35:14,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:14,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 187 transitions. [2023-11-17 11:35:14,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 13.357142857142858) internal successors, (187), 14 states have internal predecessors, (187), 0 states have call successors, (0), 0 states 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 11:35:14,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states 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 11:35:14,304 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states 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 11:35:14,304 INFO L175 Difference]: Start difference. First operand has 300 places, 372 transitions, 11431 flow. Second operand 14 states and 187 transitions. [2023-11-17 11:35:14,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 404 transitions, 12644 flow [2023-11-17 11:35:14,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 404 transitions, 11746 flow, removed 85 selfloop flow, removed 14 redundant places. [2023-11-17 11:35:14,543 INFO L231 Difference]: Finished difference. Result has 298 places, 371 transitions, 10919 flow [2023-11-17 11:35:14,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10451, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10919, PETRI_PLACES=298, PETRI_TRANSITIONS=371} [2023-11-17 11:35:14,544 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 274 predicate places. [2023-11-17 11:35:14,544 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 371 transitions, 10919 flow [2023-11-17 11:35:14,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 11:35:14,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:14,544 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:14,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-11-17 11:35:14,544 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:14,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:14,544 INFO L85 PathProgramCache]: Analyzing trace with hash -615025696, now seen corresponding path program 14 times [2023-11-17 11:35:14,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:14,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681626327] [2023-11-17 11:35:14,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:14,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:15,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:15,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:15,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681626327] [2023-11-17 11:35:15,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681626327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:15,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:15,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-17 11:35:15,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525603215] [2023-11-17 11:35:15,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:15,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-17 11:35:15,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:15,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-17 11:35:15,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-17 11:35:15,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:15,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 371 transitions, 10919 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 11:35:15,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:15,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:15,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:17,465 INFO L124 PetriNetUnfolderBase]: 833/1433 cut-off events. [2023-11-17 11:35:17,465 INFO L125 PetriNetUnfolderBase]: For 57851/57851 co-relation queries the response was YES. [2023-11-17 11:35:17,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17523 conditions, 1433 events. 833/1433 cut-off events. For 57851/57851 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7561 event pairs, 226 based on Foata normal form. 2/1435 useless extension candidates. Maximal degree in co-relation 17343. Up to 1171 conditions per place. [2023-11-17 11:35:17,480 INFO L140 encePairwiseOnDemand]: 96/105 looper letters, 289 selfloop transitions, 86 changer transitions 10/385 dead transitions. [2023-11-17 11:35:17,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 385 transitions, 11778 flow [2023-11-17 11:35:17,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:35:17,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:35:17,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 111 transitions. [2023-11-17 11:35:17,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13214285714285715 [2023-11-17 11:35:17,481 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 111 transitions. [2023-11-17 11:35:17,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 111 transitions. [2023-11-17 11:35:17,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:17,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 111 transitions. [2023-11-17 11:35:17,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 11:35:17,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:35:17,483 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:35:17,483 INFO L175 Difference]: Start difference. First operand has 298 places, 371 transitions, 10919 flow. Second operand 8 states and 111 transitions. [2023-11-17 11:35:17,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 385 transitions, 11778 flow [2023-11-17 11:35:17,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 385 transitions, 11400 flow, removed 16 selfloop flow, removed 12 redundant places. [2023-11-17 11:35:17,714 INFO L231 Difference]: Finished difference. Result has 292 places, 364 transitions, 10516 flow [2023-11-17 11:35:17,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10482, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10516, PETRI_PLACES=292, PETRI_TRANSITIONS=364} [2023-11-17 11:35:17,715 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 268 predicate places. [2023-11-17 11:35:17,715 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 364 transitions, 10516 flow [2023-11-17 11:35:17,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 11:35:17,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:17,715 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:17,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-11-17 11:35:17,716 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:17,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:17,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1582386814, now seen corresponding path program 15 times [2023-11-17 11:35:17,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:17,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302458649] [2023-11-17 11:35:17,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:17,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:19,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:19,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:19,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302458649] [2023-11-17 11:35:19,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302458649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:19,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:19,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-17 11:35:19,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058951387] [2023-11-17 11:35:19,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:19,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-17 11:35:19,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:19,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-17 11:35:19,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-17 11:35:19,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:19,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 364 transitions, 10516 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 11:35:19,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:19,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:19,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:21,389 INFO L124 PetriNetUnfolderBase]: 803/1368 cut-off events. [2023-11-17 11:35:21,389 INFO L125 PetriNetUnfolderBase]: For 54475/54475 co-relation queries the response was YES. [2023-11-17 11:35:21,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16641 conditions, 1368 events. 803/1368 cut-off events. For 54475/54475 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 7055 event pairs, 211 based on Foata normal form. 4/1372 useless extension candidates. Maximal degree in co-relation 16464. Up to 1108 conditions per place. [2023-11-17 11:35:21,402 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 279 selfloop transitions, 93 changer transitions 1/373 dead transitions. [2023-11-17 11:35:21,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 373 transitions, 11217 flow [2023-11-17 11:35:21,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 11:35:21,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-17 11:35:21,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 136 transitions. [2023-11-17 11:35:21,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1295238095238095 [2023-11-17 11:35:21,404 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 136 transitions. [2023-11-17 11:35:21,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 136 transitions. [2023-11-17 11:35:21,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:21,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 136 transitions. [2023-11-17 11:35:21,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 11:35:21,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states 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 11:35:21,406 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states 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 11:35:21,406 INFO L175 Difference]: Start difference. First operand has 292 places, 364 transitions, 10516 flow. Second operand 10 states and 136 transitions. [2023-11-17 11:35:21,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 373 transitions, 11217 flow [2023-11-17 11:35:21,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 373 transitions, 10602 flow, removed 20 selfloop flow, removed 16 redundant places. [2023-11-17 11:35:21,589 INFO L231 Difference]: Finished difference. Result has 283 places, 357 transitions, 9880 flow [2023-11-17 11:35:21,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9694, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9880, PETRI_PLACES=283, PETRI_TRANSITIONS=357} [2023-11-17 11:35:21,589 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 259 predicate places. [2023-11-17 11:35:21,589 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 357 transitions, 9880 flow [2023-11-17 11:35:21,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 11:35:21,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:21,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:21,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-11-17 11:35:21,590 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:21,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:21,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1581954364, now seen corresponding path program 16 times [2023-11-17 11:35:21,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:21,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388088984] [2023-11-17 11:35:21,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:21,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:22,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:22,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:22,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388088984] [2023-11-17 11:35:22,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388088984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:22,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:22,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-17 11:35:22,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350162462] [2023-11-17 11:35:22,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:22,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-17 11:35:22,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:22,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-17 11:35:22,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-17 11:35:22,479 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:22,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 357 transitions, 9880 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 11:35:22,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:22,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:22,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:24,142 INFO L124 PetriNetUnfolderBase]: 791/1344 cut-off events. [2023-11-17 11:35:24,142 INFO L125 PetriNetUnfolderBase]: For 50582/50582 co-relation queries the response was YES. [2023-11-17 11:35:24,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15819 conditions, 1344 events. 791/1344 cut-off events. For 50582/50582 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6895 event pairs, 212 based on Foata normal form. 2/1346 useless extension candidates. Maximal degree in co-relation 15652. Up to 1117 conditions per place. [2023-11-17 11:35:24,155 INFO L140 encePairwiseOnDemand]: 96/105 looper letters, 275 selfloop transitions, 86 changer transitions 3/364 dead transitions. [2023-11-17 11:35:24,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 364 transitions, 10608 flow [2023-11-17 11:35:24,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:35:24,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:35:24,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 112 transitions. [2023-11-17 11:35:24,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13333333333333333 [2023-11-17 11:35:24,157 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 112 transitions. [2023-11-17 11:35:24,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 112 transitions. [2023-11-17 11:35:24,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:24,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 112 transitions. [2023-11-17 11:35:24,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states 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 11:35:24,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:35:24,161 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:35:24,161 INFO L175 Difference]: Start difference. First operand has 283 places, 357 transitions, 9880 flow. Second operand 8 states and 112 transitions. [2023-11-17 11:35:24,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 364 transitions, 10608 flow [2023-11-17 11:35:24,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 364 transitions, 10334 flow, removed 10 selfloop flow, removed 9 redundant places. [2023-11-17 11:35:24,348 INFO L231 Difference]: Finished difference. Result has 277 places, 351 transitions, 9632 flow [2023-11-17 11:35:24,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9504, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9632, PETRI_PLACES=277, PETRI_TRANSITIONS=351} [2023-11-17 11:35:24,349 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 253 predicate places. [2023-11-17 11:35:24,349 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 351 transitions, 9632 flow [2023-11-17 11:35:24,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 11:35:24,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:24,350 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:24,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-11-17 11:35:24,350 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:24,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:24,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1581969740, now seen corresponding path program 10 times [2023-11-17 11:35:24,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:24,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930125715] [2023-11-17 11:35:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:24,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:25,636 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 11:35:25,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:25,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930125715] [2023-11-17 11:35:25,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930125715] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:35:25,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361267575] [2023-11-17 11:35:25,637 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-17 11:35:25,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:35:25,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:35:25,638 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:35:25,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-17 11:35:26,173 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-17 11:35:26,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:35:26,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-17 11:35:26,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:35:26,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 11:35:26,280 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 50 treesize of output 39 [2023-11-17 11:35:26,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2023-11-17 11:35:26,524 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 11:35:26,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:35:26,768 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 11:35:26,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 77 [2023-11-17 11:35:26,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2023-11-17 11:35:26,894 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 11:35:26,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361267575] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:35:26,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:35:26,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 23 [2023-11-17 11:35:26,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912867285] [2023-11-17 11:35:26,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:35:26,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-17 11:35:26,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:26,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-17 11:35:26,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=487, Unknown=1, NotChecked=0, Total=552 [2023-11-17 11:35:26,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:26,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 351 transitions, 9632 flow. Second operand has 24 states, 24 states have (on average 9.416666666666666) internal successors, (226), 24 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 11:35:26,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:26,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:26,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:31,599 INFO L124 PetriNetUnfolderBase]: 787/1340 cut-off events. [2023-11-17 11:35:31,599 INFO L125 PetriNetUnfolderBase]: For 44883/44883 co-relation queries the response was YES. [2023-11-17 11:35:31,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15586 conditions, 1340 events. 787/1340 cut-off events. For 44883/44883 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6831 event pairs, 58 based on Foata normal form. 2/1342 useless extension candidates. Maximal degree in co-relation 15420. Up to 386 conditions per place. [2023-11-17 11:35:31,612 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 116 selfloop transitions, 266 changer transitions 2/384 dead transitions. [2023-11-17 11:35:31,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 384 transitions, 10748 flow [2023-11-17 11:35:31,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 11:35:31,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-17 11:35:31,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 223 transitions. [2023-11-17 11:35:31,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.12492997198879552 [2023-11-17 11:35:31,614 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 223 transitions. [2023-11-17 11:35:31,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 223 transitions. [2023-11-17 11:35:31,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:31,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 223 transitions. [2023-11-17 11:35:31,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 13.117647058823529) internal successors, (223), 17 states have internal predecessors, (223), 0 states have call successors, (0), 0 states 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 11:35:31,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 105.0) internal successors, (1890), 18 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states 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 11:35:31,615 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 105.0) internal successors, (1890), 18 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states 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 11:35:31,615 INFO L175 Difference]: Start difference. First operand has 277 places, 351 transitions, 9632 flow. Second operand 17 states and 223 transitions. [2023-11-17 11:35:31,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 384 transitions, 10748 flow [2023-11-17 11:35:31,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 384 transitions, 10502 flow, removed 13 selfloop flow, removed 10 redundant places. [2023-11-17 11:35:31,800 INFO L231 Difference]: Finished difference. Result has 282 places, 353 transitions, 9967 flow [2023-11-17 11:35:31,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9351, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=262, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9967, PETRI_PLACES=282, PETRI_TRANSITIONS=353} [2023-11-17 11:35:31,801 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 258 predicate places. [2023-11-17 11:35:31,801 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 353 transitions, 9967 flow [2023-11-17 11:35:31,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.416666666666666) internal successors, (226), 24 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 11:35:31,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:31,801 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:31,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-17 11:35:32,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:35:32,001 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:32,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:32,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1375463943, now seen corresponding path program 12 times [2023-11-17 11:35:32,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:32,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416186160] [2023-11-17 11:35:32,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:32,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:33,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:33,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:33,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416186160] [2023-11-17 11:35:33,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416186160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:33,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:33,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:35:33,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929841386] [2023-11-17 11:35:33,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:33,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:35:33,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:33,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:35:33,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:35:33,532 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:33,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 353 transitions, 9967 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:35:33,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:33,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:33,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:34,645 INFO L124 PetriNetUnfolderBase]: 792/1355 cut-off events. [2023-11-17 11:35:34,645 INFO L125 PetriNetUnfolderBase]: For 45603/45603 co-relation queries the response was YES. [2023-11-17 11:35:34,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15915 conditions, 1355 events. 792/1355 cut-off events. For 45603/45603 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6951 event pairs, 133 based on Foata normal form. 2/1357 useless extension candidates. Maximal degree in co-relation 15745. Up to 711 conditions per place. [2023-11-17 11:35:34,659 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 257 selfloop transitions, 114 changer transitions 1/372 dead transitions. [2023-11-17 11:35:34,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 372 transitions, 10974 flow [2023-11-17 11:35:34,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 11:35:34,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-17 11:35:34,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 128 transitions. [2023-11-17 11:35:34,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13544973544973546 [2023-11-17 11:35:34,661 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 128 transitions. [2023-11-17 11:35:34,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 128 transitions. [2023-11-17 11:35:34,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:34,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 128 transitions. [2023-11-17 11:35:34,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 0 states have call successors, (0), 0 states 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 11:35:34,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 11:35:34,662 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 11:35:34,662 INFO L175 Difference]: Start difference. First operand has 282 places, 353 transitions, 9967 flow. Second operand 9 states and 128 transitions. [2023-11-17 11:35:34,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 372 transitions, 10974 flow [2023-11-17 11:35:34,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 372 transitions, 10479 flow, removed 9 selfloop flow, removed 14 redundant places. [2023-11-17 11:35:34,849 INFO L231 Difference]: Finished difference. Result has 276 places, 351 transitions, 9656 flow [2023-11-17 11:35:34,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9460, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9656, PETRI_PLACES=276, PETRI_TRANSITIONS=351} [2023-11-17 11:35:34,849 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 252 predicate places. [2023-11-17 11:35:34,849 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 351 transitions, 9656 flow [2023-11-17 11:35:34,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:35:34,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:34,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:34,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-11-17 11:35:34,850 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:34,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:34,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1385813913, now seen corresponding path program 13 times [2023-11-17 11:35:34,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:34,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680170741] [2023-11-17 11:35:34,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:34,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:36,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:36,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:36,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680170741] [2023-11-17 11:35:36,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680170741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:36,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:36,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:35:36,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050105248] [2023-11-17 11:35:36,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:36,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:35:36,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:36,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:35:36,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:35:36,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:36,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 351 transitions, 9656 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:35:36,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:36,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:36,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:37,221 INFO L124 PetriNetUnfolderBase]: 796/1359 cut-off events. [2023-11-17 11:35:37,221 INFO L125 PetriNetUnfolderBase]: For 45252/45252 co-relation queries the response was YES. [2023-11-17 11:35:37,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15645 conditions, 1359 events. 796/1359 cut-off events. For 45252/45252 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6987 event pairs, 201 based on Foata normal form. 2/1361 useless extension candidates. Maximal degree in co-relation 15478. Up to 1019 conditions per place. [2023-11-17 11:35:37,235 INFO L140 encePairwiseOnDemand]: 96/105 looper letters, 223 selfloop transitions, 140 changer transitions 3/366 dead transitions. [2023-11-17 11:35:37,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 366 transitions, 10625 flow [2023-11-17 11:35:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:35:37,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:35:37,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 115 transitions. [2023-11-17 11:35:37,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13690476190476192 [2023-11-17 11:35:37,236 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 115 transitions. [2023-11-17 11:35:37,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 115 transitions. [2023-11-17 11:35:37,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:37,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 115 transitions. [2023-11-17 11:35:37,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states 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 11:35:37,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:35:37,237 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:35:37,237 INFO L175 Difference]: Start difference. First operand has 276 places, 351 transitions, 9656 flow. Second operand 8 states and 115 transitions. [2023-11-17 11:35:37,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 366 transitions, 10625 flow [2023-11-17 11:35:37,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 366 transitions, 10361 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-17 11:35:37,406 INFO L231 Difference]: Finished difference. Result has 280 places, 354 transitions, 9771 flow [2023-11-17 11:35:37,406 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9394, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9771, PETRI_PLACES=280, PETRI_TRANSITIONS=354} [2023-11-17 11:35:37,406 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 256 predicate places. [2023-11-17 11:35:37,407 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 354 transitions, 9771 flow [2023-11-17 11:35:37,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:35:37,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:37,407 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:37,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-11-17 11:35:37,407 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:37,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:37,407 INFO L85 PathProgramCache]: Analyzing trace with hash -884211527, now seen corresponding path program 14 times [2023-11-17 11:35:37,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:37,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578038309] [2023-11-17 11:35:37,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:37,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:37,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:37,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:37,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578038309] [2023-11-17 11:35:37,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578038309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:37,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:37,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 11:35:37,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425075453] [2023-11-17 11:35:37,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:37,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 11:35:37,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:37,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 11:35:37,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-17 11:35:37,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:37,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 354 transitions, 9771 flow. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 11:35:37,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:37,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:37,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:38,915 INFO L124 PetriNetUnfolderBase]: 791/1352 cut-off events. [2023-11-17 11:35:38,915 INFO L125 PetriNetUnfolderBase]: For 44665/44665 co-relation queries the response was YES. [2023-11-17 11:35:38,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15514 conditions, 1352 events. 791/1352 cut-off events. For 44665/44665 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 6949 event pairs, 138 based on Foata normal form. 2/1354 useless extension candidates. Maximal degree in co-relation 15349. Up to 737 conditions per place. [2023-11-17 11:35:38,930 INFO L140 encePairwiseOnDemand]: 97/105 looper letters, 252 selfloop transitions, 109 changer transitions 7/368 dead transitions. [2023-11-17 11:35:38,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 368 transitions, 10629 flow [2023-11-17 11:35:38,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 11:35:38,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-17 11:35:38,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 91 transitions. [2023-11-17 11:35:38,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.14444444444444443 [2023-11-17 11:35:38,931 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 91 transitions. [2023-11-17 11:35:38,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 91 transitions. [2023-11-17 11:35:38,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:38,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 91 transitions. [2023-11-17 11:35:38,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 11:35:38,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states 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 11:35:38,932 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states 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 11:35:38,932 INFO L175 Difference]: Start difference. First operand has 280 places, 354 transitions, 9771 flow. Second operand 6 states and 91 transitions. [2023-11-17 11:35:38,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 368 transitions, 10629 flow [2023-11-17 11:35:39,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 368 transitions, 10453 flow, removed 13 selfloop flow, removed 4 redundant places. [2023-11-17 11:35:39,112 INFO L231 Difference]: Finished difference. Result has 282 places, 350 transitions, 9793 flow [2023-11-17 11:35:39,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9519, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=9793, PETRI_PLACES=282, PETRI_TRANSITIONS=350} [2023-11-17 11:35:39,113 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 258 predicate places. [2023-11-17 11:35:39,113 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 350 transitions, 9793 flow [2023-11-17 11:35:39,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 11:35:39,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:39,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:39,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-11-17 11:35:39,113 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:39,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:39,114 INFO L85 PathProgramCache]: Analyzing trace with hash -941140426, now seen corresponding path program 17 times [2023-11-17 11:35:39,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:39,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115338004] [2023-11-17 11:35:39,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:39,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:40,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:40,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:40,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115338004] [2023-11-17 11:35:40,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115338004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:40,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:40,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:35:40,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935213482] [2023-11-17 11:35:40,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:40,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:35:40,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:40,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:35:40,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:35:40,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:40,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 350 transitions, 9793 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:35:40,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:40,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:40,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:41,428 INFO L124 PetriNetUnfolderBase]: 802/1359 cut-off events. [2023-11-17 11:35:41,428 INFO L125 PetriNetUnfolderBase]: For 46706/46706 co-relation queries the response was YES. [2023-11-17 11:35:41,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15762 conditions, 1359 events. 802/1359 cut-off events. For 46706/46706 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6895 event pairs, 138 based on Foata normal form. 2/1361 useless extension candidates. Maximal degree in co-relation 15590. Up to 742 conditions per place. [2023-11-17 11:35:41,442 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 257 selfloop transitions, 120 changer transitions 0/377 dead transitions. [2023-11-17 11:35:41,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 377 transitions, 11056 flow [2023-11-17 11:35:41,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:35:41,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:35:41,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 120 transitions. [2023-11-17 11:35:41,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.14285714285714285 [2023-11-17 11:35:41,443 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 120 transitions. [2023-11-17 11:35:41,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 120 transitions. [2023-11-17 11:35:41,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:41,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 120 transitions. [2023-11-17 11:35:41,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 15.0) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 11:35:41,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:35:41,444 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:35:41,444 INFO L175 Difference]: Start difference. First operand has 282 places, 350 transitions, 9793 flow. Second operand 8 states and 120 transitions. [2023-11-17 11:35:41,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 377 transitions, 11056 flow [2023-11-17 11:35:41,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 377 transitions, 10759 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-11-17 11:35:41,627 INFO L231 Difference]: Finished difference. Result has 284 places, 361 transitions, 10115 flow [2023-11-17 11:35:41,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9500, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10115, PETRI_PLACES=284, PETRI_TRANSITIONS=361} [2023-11-17 11:35:41,628 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 260 predicate places. [2023-11-17 11:35:41,628 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 361 transitions, 10115 flow [2023-11-17 11:35:41,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:35:41,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:41,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:41,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-11-17 11:35:41,628 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:41,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:41,628 INFO L85 PathProgramCache]: Analyzing trace with hash -81671250, now seen corresponding path program 18 times [2023-11-17 11:35:41,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:41,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142161315] [2023-11-17 11:35:41,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:41,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:42,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:42,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:42,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142161315] [2023-11-17 11:35:42,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142161315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:42,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:42,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:35:42,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435772566] [2023-11-17 11:35:42,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:42,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 11:35:42,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:42,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 11:35:42,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-17 11:35:42,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:42,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 361 transitions, 10115 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 11:35:42,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:42,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:42,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:43,552 INFO L124 PetriNetUnfolderBase]: 807/1366 cut-off events. [2023-11-17 11:35:43,553 INFO L125 PetriNetUnfolderBase]: For 48111/48111 co-relation queries the response was YES. [2023-11-17 11:35:43,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15684 conditions, 1366 events. 807/1366 cut-off events. For 48111/48111 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6924 event pairs, 137 based on Foata normal form. 2/1368 useless extension candidates. Maximal degree in co-relation 15516. Up to 752 conditions per place. [2023-11-17 11:35:43,568 INFO L140 encePairwiseOnDemand]: 96/105 looper letters, 196 selfloop transitions, 184 changer transitions 2/382 dead transitions. [2023-11-17 11:35:43,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 382 transitions, 11154 flow [2023-11-17 11:35:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 11:35:43,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-17 11:35:43,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 114 transitions. [2023-11-17 11:35:43,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.15510204081632653 [2023-11-17 11:35:43,569 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 114 transitions. [2023-11-17 11:35:43,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 114 transitions. [2023-11-17 11:35:43,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:43,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 114 transitions. [2023-11-17 11:35:43,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 11:35:43,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 105.0) internal successors, (840), 8 states have internal predecessors, (840), 0 states have call successors, (0), 0 states 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 11:35:43,570 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 105.0) internal successors, (840), 8 states have internal predecessors, (840), 0 states have call successors, (0), 0 states 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 11:35:43,570 INFO L175 Difference]: Start difference. First operand has 284 places, 361 transitions, 10115 flow. Second operand 7 states and 114 transitions. [2023-11-17 11:35:43,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 382 transitions, 11154 flow [2023-11-17 11:35:43,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 382 transitions, 11026 flow, removed 11 selfloop flow, removed 2 redundant places. [2023-11-17 11:35:43,769 INFO L231 Difference]: Finished difference. Result has 288 places, 363 transitions, 10429 flow [2023-11-17 11:35:43,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9987, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=10429, PETRI_PLACES=288, PETRI_TRANSITIONS=363} [2023-11-17 11:35:43,770 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 264 predicate places. [2023-11-17 11:35:43,770 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 363 transitions, 10429 flow [2023-11-17 11:35:43,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 11:35:43,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:43,770 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:43,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-11-17 11:35:43,771 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:43,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:43,771 INFO L85 PathProgramCache]: Analyzing trace with hash -941153447, now seen corresponding path program 6 times [2023-11-17 11:35:43,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:43,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849742698] [2023-11-17 11:35:43,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:43,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:45,130 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 11:35:45,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:45,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849742698] [2023-11-17 11:35:45,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849742698] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:35:45,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523889430] [2023-11-17 11:35:45,130 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-17 11:35:45,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:35:45,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:35:45,131 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:35:45,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-17 11:35:46,262 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2023-11-17 11:35:46,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:35:46,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-17 11:35:46,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:35:46,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 35 [2023-11-17 11:35:46,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:46,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:35:46,678 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 11:35:46,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523889430] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:35:46,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:35:46,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:35:46,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314641159] [2023-11-17 11:35:46,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:35:46,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:35:46,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:46,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:35:46,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:35:46,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:46,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 363 transitions, 10429 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:35:46,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:46,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:46,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:49,235 INFO L124 PetriNetUnfolderBase]: 831/1406 cut-off events. [2023-11-17 11:35:49,236 INFO L125 PetriNetUnfolderBase]: For 49756/49756 co-relation queries the response was YES. [2023-11-17 11:35:49,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16438 conditions, 1406 events. 831/1406 cut-off events. For 49756/49756 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 7207 event pairs, 106 based on Foata normal form. 2/1408 useless extension candidates. Maximal degree in co-relation 16264. Up to 552 conditions per place. [2023-11-17 11:35:49,251 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 232 selfloop transitions, 167 changer transitions 6/405 dead transitions. [2023-11-17 11:35:49,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 405 transitions, 11794 flow [2023-11-17 11:35:49,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-17 11:35:49,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-17 11:35:49,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 206 transitions. [2023-11-17 11:35:49,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1307936507936508 [2023-11-17 11:35:49,252 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 206 transitions. [2023-11-17 11:35:49,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 206 transitions. [2023-11-17 11:35:49,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:49,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 206 transitions. [2023-11-17 11:35:49,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 13.733333333333333) internal successors, (206), 15 states have internal predecessors, (206), 0 states have call successors, (0), 0 states 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 11:35:49,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states 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 11:35:49,254 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states 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 11:35:49,254 INFO L175 Difference]: Start difference. First operand has 288 places, 363 transitions, 10429 flow. Second operand 15 states and 206 transitions. [2023-11-17 11:35:49,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 405 transitions, 11794 flow [2023-11-17 11:35:49,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 405 transitions, 11236 flow, removed 12 selfloop flow, removed 7 redundant places. [2023-11-17 11:35:49,452 INFO L231 Difference]: Finished difference. Result has 299 places, 371 transitions, 10583 flow [2023-11-17 11:35:49,452 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9874, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=10583, PETRI_PLACES=299, PETRI_TRANSITIONS=371} [2023-11-17 11:35:49,453 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 275 predicate places. [2023-11-17 11:35:49,453 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 371 transitions, 10583 flow [2023-11-17 11:35:49,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:35:49,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:49,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:49,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-17 11:35:49,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:35:49,654 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:49,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:49,654 INFO L85 PathProgramCache]: Analyzing trace with hash -940217433, now seen corresponding path program 15 times [2023-11-17 11:35:49,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:49,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798589483] [2023-11-17 11:35:49,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:49,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:50,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:50,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:50,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798589483] [2023-11-17 11:35:50,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798589483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:50,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:50,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:35:50,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234484614] [2023-11-17 11:35:50,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:50,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:35:50,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:50,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:35:50,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:35:50,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:50,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 371 transitions, 10583 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:35:50,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:50,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:50,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:52,445 INFO L124 PetriNetUnfolderBase]: 817/1388 cut-off events. [2023-11-17 11:35:52,445 INFO L125 PetriNetUnfolderBase]: For 49624/49624 co-relation queries the response was YES. [2023-11-17 11:35:52,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16031 conditions, 1388 events. 817/1388 cut-off events. For 49624/49624 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7111 event pairs, 203 based on Foata normal form. 2/1390 useless extension candidates. Maximal degree in co-relation 15862. Up to 1043 conditions per place. [2023-11-17 11:35:52,460 INFO L140 encePairwiseOnDemand]: 96/105 looper letters, 236 selfloop transitions, 138 changer transitions 6/380 dead transitions. [2023-11-17 11:35:52,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 380 transitions, 11379 flow [2023-11-17 11:35:52,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 11:35:52,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-17 11:35:52,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 122 transitions. [2023-11-17 11:35:52,461 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1291005291005291 [2023-11-17 11:35:52,461 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 122 transitions. [2023-11-17 11:35:52,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 122 transitions. [2023-11-17 11:35:52,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:52,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 122 transitions. [2023-11-17 11:35:52,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 11:35:52,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 11:35:52,462 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 11:35:52,462 INFO L175 Difference]: Start difference. First operand has 299 places, 371 transitions, 10583 flow. Second operand 9 states and 122 transitions. [2023-11-17 11:35:52,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 380 transitions, 11379 flow [2023-11-17 11:35:52,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 380 transitions, 11241 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-11-17 11:35:52,669 INFO L231 Difference]: Finished difference. Result has 300 places, 367 transitions, 10602 flow [2023-11-17 11:35:52,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10377, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10602, PETRI_PLACES=300, PETRI_TRANSITIONS=367} [2023-11-17 11:35:52,669 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 276 predicate places. [2023-11-17 11:35:52,670 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 367 transitions, 10602 flow [2023-11-17 11:35:52,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:35:52,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:52,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:52,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-11-17 11:35:52,670 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:52,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:52,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1375089153, now seen corresponding path program 16 times [2023-11-17 11:35:52,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:52,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311675908] [2023-11-17 11:35:52,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:52,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:53,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:53,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:53,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311675908] [2023-11-17 11:35:53,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311675908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:53,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:53,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:35:53,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588355136] [2023-11-17 11:35:53,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:53,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:35:53,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:53,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:35:53,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:35:53,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:53,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 367 transitions, 10602 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:35:53,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:53,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:53,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:54,994 INFO L124 PetriNetUnfolderBase]: 820/1389 cut-off events. [2023-11-17 11:35:54,994 INFO L125 PetriNetUnfolderBase]: For 52194/52194 co-relation queries the response was YES. [2023-11-17 11:35:55,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16300 conditions, 1389 events. 820/1389 cut-off events. For 52194/52194 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7097 event pairs, 149 based on Foata normal form. 2/1391 useless extension candidates. Maximal degree in co-relation 16129. Up to 797 conditions per place. [2023-11-17 11:35:55,010 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 263 selfloop transitions, 121 changer transitions 0/384 dead transitions. [2023-11-17 11:35:55,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 384 transitions, 11635 flow [2023-11-17 11:35:55,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:35:55,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:35:55,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 118 transitions. [2023-11-17 11:35:55,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.14047619047619048 [2023-11-17 11:35:55,011 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 118 transitions. [2023-11-17 11:35:55,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 118 transitions. [2023-11-17 11:35:55,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:55,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 118 transitions. [2023-11-17 11:35:55,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states 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 11:35:55,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:35:55,012 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:35:55,012 INFO L175 Difference]: Start difference. First operand has 300 places, 367 transitions, 10602 flow. Second operand 8 states and 118 transitions. [2023-11-17 11:35:55,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 384 transitions, 11635 flow [2023-11-17 11:35:55,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 384 transitions, 11358 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-11-17 11:35:55,234 INFO L231 Difference]: Finished difference. Result has 301 places, 369 transitions, 10636 flow [2023-11-17 11:35:55,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10329, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10636, PETRI_PLACES=301, PETRI_TRANSITIONS=369} [2023-11-17 11:35:55,235 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 277 predicate places. [2023-11-17 11:35:55,235 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 369 transitions, 10636 flow [2023-11-17 11:35:55,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:35:55,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:55,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:55,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-11-17 11:35:55,236 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:55,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:55,236 INFO L85 PathProgramCache]: Analyzing trace with hash -931799073, now seen corresponding path program 17 times [2023-11-17 11:35:55,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:55,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853828954] [2023-11-17 11:35:55,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:55,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:35:57,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:35:57,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:35:57,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853828954] [2023-11-17 11:35:57,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853828954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:35:57,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:35:57,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:35:57,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105055027] [2023-11-17 11:35:57,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:35:57,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:35:57,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:35:57,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:35:57,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:35:57,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:35:57,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 369 transitions, 10636 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:35:57,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:35:57,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:35:57,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:35:58,307 INFO L124 PetriNetUnfolderBase]: 812/1377 cut-off events. [2023-11-17 11:35:58,307 INFO L125 PetriNetUnfolderBase]: For 50478/50478 co-relation queries the response was YES. [2023-11-17 11:35:58,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16090 conditions, 1377 events. 812/1377 cut-off events. For 50478/50478 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 7027 event pairs, 149 based on Foata normal form. 2/1379 useless extension candidates. Maximal degree in co-relation 15917. Up to 797 conditions per place. [2023-11-17 11:35:58,321 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 265 selfloop transitions, 118 changer transitions 0/383 dead transitions. [2023-11-17 11:35:58,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 383 transitions, 11550 flow [2023-11-17 11:35:58,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:35:58,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:35:58,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 118 transitions. [2023-11-17 11:35:58,323 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.14047619047619048 [2023-11-17 11:35:58,323 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 118 transitions. [2023-11-17 11:35:58,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 118 transitions. [2023-11-17 11:35:58,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:35:58,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 118 transitions. [2023-11-17 11:35:58,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states 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 11:35:58,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:35:58,324 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:35:58,324 INFO L175 Difference]: Start difference. First operand has 301 places, 369 transitions, 10636 flow. Second operand 8 states and 118 transitions. [2023-11-17 11:35:58,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 383 transitions, 11550 flow [2023-11-17 11:35:58,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 383 transitions, 11431 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-11-17 11:35:58,518 INFO L231 Difference]: Finished difference. Result has 304 places, 367 transitions, 10675 flow [2023-11-17 11:35:58,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10439, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10675, PETRI_PLACES=304, PETRI_TRANSITIONS=367} [2023-11-17 11:35:58,518 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 280 predicate places. [2023-11-17 11:35:58,518 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 367 transitions, 10675 flow [2023-11-17 11:35:58,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:35:58,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:35:58,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:35:58,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-11-17 11:35:58,519 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:35:58,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:35:58,519 INFO L85 PathProgramCache]: Analyzing trace with hash -932216147, now seen corresponding path program 7 times [2023-11-17 11:35:58,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:35:58,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568040667] [2023-11-17 11:35:58,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:35:58,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:35:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:00,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:36:00,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:36:00,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568040667] [2023-11-17 11:36:00,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568040667] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:36:00,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865071612] [2023-11-17 11:36:00,531 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-17 11:36:00,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:36:00,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:36:00,532 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:36:00,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-17 11:36:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:01,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-17 11:36:01,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:36:01,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2023-11-17 11:36:01,429 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 11:36:01,429 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:36:01,623 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2023-11-17 11:36:01,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-11-17 11:36:01,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2023-11-17 11:36:01,659 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 11:36:01,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865071612] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:36:01,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:36:01,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:36:01,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440655349] [2023-11-17 11:36:01,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:36:01,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:36:01,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:36:01,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:36:01,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:36:01,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:36:01,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 367 transitions, 10675 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:01,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:36:01,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:36:01,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:36:04,515 INFO L124 PetriNetUnfolderBase]: 831/1414 cut-off events. [2023-11-17 11:36:04,516 INFO L125 PetriNetUnfolderBase]: For 52561/52561 co-relation queries the response was YES. [2023-11-17 11:36:04,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16538 conditions, 1414 events. 831/1414 cut-off events. For 52561/52561 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7283 event pairs, 50 based on Foata normal form. 4/1418 useless extension candidates. Maximal degree in co-relation 16365. Up to 548 conditions per place. [2023-11-17 11:36:04,532 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 260 selfloop transitions, 150 changer transitions 5/415 dead transitions. [2023-11-17 11:36:04,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 415 transitions, 12156 flow [2023-11-17 11:36:04,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 11:36:04,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-17 11:36:04,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 242 transitions. [2023-11-17 11:36:04,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.12804232804232804 [2023-11-17 11:36:04,533 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 242 transitions. [2023-11-17 11:36:04,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 242 transitions. [2023-11-17 11:36:04,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:36:04,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 242 transitions. [2023-11-17 11:36:04,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 13.444444444444445) internal successors, (242), 18 states have internal predecessors, (242), 0 states have call successors, (0), 0 states 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 11:36:04,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 105.0) internal successors, (1995), 19 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states 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 11:36:04,535 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 105.0) internal successors, (1995), 19 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states 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 11:36:04,535 INFO L175 Difference]: Start difference. First operand has 304 places, 367 transitions, 10675 flow. Second operand 18 states and 242 transitions. [2023-11-17 11:36:04,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 415 transitions, 12156 flow [2023-11-17 11:36:04,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 415 transitions, 11949 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-17 11:36:04,751 INFO L231 Difference]: Finished difference. Result has 321 places, 376 transitions, 11028 flow [2023-11-17 11:36:04,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10468, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11028, PETRI_PLACES=321, PETRI_TRANSITIONS=376} [2023-11-17 11:36:04,752 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 297 predicate places. [2023-11-17 11:36:04,752 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 376 transitions, 11028 flow [2023-11-17 11:36:04,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:04,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:36:04,752 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:36:04,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-17 11:36:04,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:36:04,953 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:36:04,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:36:04,953 INFO L85 PathProgramCache]: Analyzing trace with hash -931770676, now seen corresponding path program 19 times [2023-11-17 11:36:04,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:36:04,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903784804] [2023-11-17 11:36:04,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:36:04,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:36:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:06,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:36:06,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:36:06,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903784804] [2023-11-17 11:36:06,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903784804] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:36:06,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:36:06,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:36:06,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659188546] [2023-11-17 11:36:06,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:36:06,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:36:06,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:36:06,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:36:06,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:36:06,458 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:36:06,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 376 transitions, 11028 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:36:06,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:36:06,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:36:06,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:36:07,928 INFO L124 PetriNetUnfolderBase]: 824/1401 cut-off events. [2023-11-17 11:36:07,928 INFO L125 PetriNetUnfolderBase]: For 53574/53574 co-relation queries the response was YES. [2023-11-17 11:36:07,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16555 conditions, 1401 events. 824/1401 cut-off events. For 53574/53574 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 7207 event pairs, 145 based on Foata normal form. 2/1403 useless extension candidates. Maximal degree in co-relation 16379. Up to 775 conditions per place. [2023-11-17 11:36:07,944 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 265 selfloop transitions, 128 changer transitions 1/394 dead transitions. [2023-11-17 11:36:07,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 394 transitions, 11972 flow [2023-11-17 11:36:07,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 11:36:07,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-17 11:36:07,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 145 transitions. [2023-11-17 11:36:07,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1380952380952381 [2023-11-17 11:36:07,946 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 145 transitions. [2023-11-17 11:36:07,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 145 transitions. [2023-11-17 11:36:07,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:36:07,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 145 transitions. [2023-11-17 11:36:07,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 14.5) internal successors, (145), 10 states have internal predecessors, (145), 0 states have call successors, (0), 0 states 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 11:36:07,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states 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 11:36:07,947 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states 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 11:36:07,947 INFO L175 Difference]: Start difference. First operand has 321 places, 376 transitions, 11028 flow. Second operand 10 states and 145 transitions. [2023-11-17 11:36:07,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 394 transitions, 11972 flow [2023-11-17 11:36:08,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 394 transitions, 11791 flow, removed 8 selfloop flow, removed 9 redundant places. [2023-11-17 11:36:08,165 INFO L231 Difference]: Finished difference. Result has 321 places, 373 transitions, 11017 flow [2023-11-17 11:36:08,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10764, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11017, PETRI_PLACES=321, PETRI_TRANSITIONS=373} [2023-11-17 11:36:08,166 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 297 predicate places. [2023-11-17 11:36:08,166 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 373 transitions, 11017 flow [2023-11-17 11:36:08,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:36:08,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:36:08,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:36:08,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-11-17 11:36:08,166 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:36:08,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:36:08,167 INFO L85 PathProgramCache]: Analyzing trace with hash -912853171, now seen corresponding path program 8 times [2023-11-17 11:36:08,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:36:08,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409817573] [2023-11-17 11:36:08,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:36:08,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:36:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:09,183 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 11:36:09,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:36:09,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409817573] [2023-11-17 11:36:09,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409817573] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:36:09,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410490705] [2023-11-17 11:36:09,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 11:36:09,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:36:09,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:36:09,186 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:36:09,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-17 11:36:10,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 11:36:10,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:36:10,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-17 11:36:10,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:36:10,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 43 [2023-11-17 11:36:10,603 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 11:36:10,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:36:10,819 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 11:36:10,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410490705] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:36:10,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:36:10,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:36:10,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124380429] [2023-11-17 11:36:10,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:36:10,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:36:10,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:36:10,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:36:10,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:36:10,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:36:10,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 373 transitions, 11017 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:10,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:36:10,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:36:10,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:36:13,320 INFO L124 PetriNetUnfolderBase]: 829/1412 cut-off events. [2023-11-17 11:36:13,321 INFO L125 PetriNetUnfolderBase]: For 53580/53580 co-relation queries the response was YES. [2023-11-17 11:36:13,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16810 conditions, 1412 events. 829/1412 cut-off events. For 53580/53580 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 7306 event pairs, 70 based on Foata normal form. 2/1414 useless extension candidates. Maximal degree in co-relation 16629. Up to 394 conditions per place. [2023-11-17 11:36:13,339 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 170 selfloop transitions, 230 changer transitions 13/413 dead transitions. [2023-11-17 11:36:13,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 413 transitions, 12293 flow [2023-11-17 11:36:13,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 11:36:13,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-17 11:36:13,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 181 transitions. [2023-11-17 11:36:13,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1326007326007326 [2023-11-17 11:36:13,341 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 181 transitions. [2023-11-17 11:36:13,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 181 transitions. [2023-11-17 11:36:13,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:36:13,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 181 transitions. [2023-11-17 11:36:13,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 13.923076923076923) internal successors, (181), 13 states have internal predecessors, (181), 0 states have call successors, (0), 0 states 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 11:36:13,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states 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 11:36:13,342 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states 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 11:36:13,342 INFO L175 Difference]: Start difference. First operand has 321 places, 373 transitions, 11017 flow. Second operand 13 states and 181 transitions. [2023-11-17 11:36:13,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 413 transitions, 12293 flow [2023-11-17 11:36:13,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 413 transitions, 12161 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-11-17 11:36:13,574 INFO L231 Difference]: Finished difference. Result has 329 places, 375 transitions, 11439 flow [2023-11-17 11:36:13,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10885, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=11439, PETRI_PLACES=329, PETRI_TRANSITIONS=375} [2023-11-17 11:36:13,575 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 305 predicate places. [2023-11-17 11:36:13,575 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 375 transitions, 11439 flow [2023-11-17 11:36:13,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:13,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:36:13,575 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:36:13,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-17 11:36:13,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2023-11-17 11:36:13,776 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:36:13,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:36:13,776 INFO L85 PathProgramCache]: Analyzing trace with hash -932173863, now seen corresponding path program 18 times [2023-11-17 11:36:13,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:36:13,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260039281] [2023-11-17 11:36:13,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:36:13,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:36:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:15,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:36:15,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:36:15,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260039281] [2023-11-17 11:36:15,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260039281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:36:15,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:36:15,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:36:15,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938147669] [2023-11-17 11:36:15,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:36:15,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:36:15,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:36:15,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:36:15,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:36:15,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:36:15,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 375 transitions, 11439 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:36:15,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:36:15,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:36:15,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:36:16,167 INFO L124 PetriNetUnfolderBase]: 817/1388 cut-off events. [2023-11-17 11:36:16,168 INFO L125 PetriNetUnfolderBase]: For 58059/58059 co-relation queries the response was YES. [2023-11-17 11:36:16,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16899 conditions, 1388 events. 817/1388 cut-off events. For 58059/58059 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7104 event pairs, 205 based on Foata normal form. 2/1390 useless extension candidates. Maximal degree in co-relation 16715. Up to 1051 conditions per place. [2023-11-17 11:36:16,182 INFO L140 encePairwiseOnDemand]: 96/105 looper letters, 239 selfloop transitions, 137 changer transitions 5/381 dead transitions. [2023-11-17 11:36:16,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 381 transitions, 12181 flow [2023-11-17 11:36:16,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:36:16,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:36:16,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 111 transitions. [2023-11-17 11:36:16,183 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13214285714285715 [2023-11-17 11:36:16,184 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 111 transitions. [2023-11-17 11:36:16,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 111 transitions. [2023-11-17 11:36:16,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:36:16,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 111 transitions. [2023-11-17 11:36:16,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 11:36:16,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:36:16,185 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:36:16,185 INFO L175 Difference]: Start difference. First operand has 329 places, 375 transitions, 11439 flow. Second operand 8 states and 111 transitions. [2023-11-17 11:36:16,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 381 transitions, 12181 flow [2023-11-17 11:36:16,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 381 transitions, 11457 flow, removed 16 selfloop flow, removed 11 redundant places. [2023-11-17 11:36:16,401 INFO L231 Difference]: Finished difference. Result has 323 places, 371 transitions, 10860 flow [2023-11-17 11:36:16,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10623, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10860, PETRI_PLACES=323, PETRI_TRANSITIONS=371} [2023-11-17 11:36:16,402 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 299 predicate places. [2023-11-17 11:36:16,402 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 371 transitions, 10860 flow [2023-11-17 11:36:16,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:36:16,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:36:16,402 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:36:16,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-11-17 11:36:16,403 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:36:16,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:36:16,403 INFO L85 PathProgramCache]: Analyzing trace with hash -931786052, now seen corresponding path program 11 times [2023-11-17 11:36:16,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:36:16,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168621793] [2023-11-17 11:36:16,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:36:16,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:36:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:17,591 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 11:36:17,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:36:17,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168621793] [2023-11-17 11:36:17,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168621793] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:36:17,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527693232] [2023-11-17 11:36:17,592 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-17 11:36:17,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:36:17,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:36:17,594 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:36:17,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-17 11:36:18,312 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 11:36:18,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:36:18,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-17 11:36:18,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:36:18,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2023-11-17 11:36:18,514 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 11:36:18,514 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:36:18,739 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 11:36:18,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527693232] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:36:18,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:36:18,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:36:18,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518803703] [2023-11-17 11:36:18,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:36:18,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:36:18,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:36:18,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:36:18,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:36:18,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:36:18,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 371 transitions, 10860 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:18,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:36:18,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:36:18,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:36:21,326 INFO L124 PetriNetUnfolderBase]: 820/1403 cut-off events. [2023-11-17 11:36:21,326 INFO L125 PetriNetUnfolderBase]: For 53700/53700 co-relation queries the response was YES. [2023-11-17 11:36:21,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16497 conditions, 1403 events. 820/1403 cut-off events. For 53700/53700 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7248 event pairs, 154 based on Foata normal form. 2/1405 useless extension candidates. Maximal degree in co-relation 16319. Up to 820 conditions per place. [2023-11-17 11:36:21,342 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 279 selfloop transitions, 124 changer transitions 5/408 dead transitions. [2023-11-17 11:36:21,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 408 transitions, 12079 flow [2023-11-17 11:36:21,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 11:36:21,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-17 11:36:21,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 230 transitions. [2023-11-17 11:36:21,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.12169312169312169 [2023-11-17 11:36:21,344 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 230 transitions. [2023-11-17 11:36:21,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 230 transitions. [2023-11-17 11:36:21,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:36:21,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 230 transitions. [2023-11-17 11:36:21,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 12.777777777777779) internal successors, (230), 18 states have internal predecessors, (230), 0 states have call successors, (0), 0 states 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 11:36:21,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 105.0) internal successors, (1995), 19 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states 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 11:36:21,346 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 105.0) internal successors, (1995), 19 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states 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 11:36:21,346 INFO L175 Difference]: Start difference. First operand has 323 places, 371 transitions, 10860 flow. Second operand 18 states and 230 transitions. [2023-11-17 11:36:21,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 408 transitions, 12079 flow [2023-11-17 11:36:21,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 408 transitions, 11797 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-11-17 11:36:21,596 INFO L231 Difference]: Finished difference. Result has 333 places, 373 transitions, 10881 flow [2023-11-17 11:36:21,597 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10584, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10881, PETRI_PLACES=333, PETRI_TRANSITIONS=373} [2023-11-17 11:36:21,597 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 309 predicate places. [2023-11-17 11:36:21,597 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 373 transitions, 10881 flow [2023-11-17 11:36:21,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:21,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:36:21,597 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:36:21,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-17 11:36:21,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:36:21,798 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:36:21,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:36:21,798 INFO L85 PathProgramCache]: Analyzing trace with hash -72704687, now seen corresponding path program 19 times [2023-11-17 11:36:21,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:36:21,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646733523] [2023-11-17 11:36:21,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:36:21,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:36:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:22,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:36:22,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:36:22,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646733523] [2023-11-17 11:36:22,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646733523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:36:22,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:36:22,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:36:22,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880465754] [2023-11-17 11:36:22,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:36:22,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 11:36:22,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:36:22,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 11:36:22,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-17 11:36:22,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:36:22,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 373 transitions, 10881 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 11:36:22,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:36:22,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:36:22,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:36:23,520 INFO L124 PetriNetUnfolderBase]: 821/1404 cut-off events. [2023-11-17 11:36:23,520 INFO L125 PetriNetUnfolderBase]: For 52622/52622 co-relation queries the response was YES. [2023-11-17 11:36:23,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16499 conditions, 1404 events. 821/1404 cut-off events. For 52622/52622 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7277 event pairs, 154 based on Foata normal form. 2/1406 useless extension candidates. Maximal degree in co-relation 16317. Up to 823 conditions per place. [2023-11-17 11:36:23,534 INFO L140 encePairwiseOnDemand]: 96/105 looper letters, 214 selfloop transitions, 174 changer transitions 4/392 dead transitions. [2023-11-17 11:36:23,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 392 transitions, 11865 flow [2023-11-17 11:36:23,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:36:23,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:36:23,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 122 transitions. [2023-11-17 11:36:23,535 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.14523809523809525 [2023-11-17 11:36:23,536 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 122 transitions. [2023-11-17 11:36:23,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 122 transitions. [2023-11-17 11:36:23,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:36:23,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 122 transitions. [2023-11-17 11:36:23,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 11:36:23,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:36:23,536 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:36:23,537 INFO L175 Difference]: Start difference. First operand has 333 places, 373 transitions, 10881 flow. Second operand 8 states and 122 transitions. [2023-11-17 11:36:23,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 392 transitions, 11865 flow [2023-11-17 11:36:23,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 392 transitions, 11468 flow, removed 4 selfloop flow, removed 15 redundant places. [2023-11-17 11:36:23,780 INFO L231 Difference]: Finished difference. Result has 324 places, 371 transitions, 10753 flow [2023-11-17 11:36:23,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10416, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10753, PETRI_PLACES=324, PETRI_TRANSITIONS=371} [2023-11-17 11:36:23,781 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 300 predicate places. [2023-11-17 11:36:23,781 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 371 transitions, 10753 flow [2023-11-17 11:36:23,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 11:36:23,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:36:23,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:36:23,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-11-17 11:36:23,782 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:36:23,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:36:23,782 INFO L85 PathProgramCache]: Analyzing trace with hash -81684271, now seen corresponding path program 9 times [2023-11-17 11:36:23,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:36:23,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224975051] [2023-11-17 11:36:23,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:36:23,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:36:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:25,074 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 11:36:25,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:36:25,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224975051] [2023-11-17 11:36:25,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224975051] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:36:25,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079552633] [2023-11-17 11:36:25,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-17 11:36:25,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:36:25,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:36:25,075 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:36:25,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-17 11:36:26,116 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-17 11:36:26,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:36:26,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-17 11:36:26,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:36:26,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 35 [2023-11-17 11:36:26,333 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 11:36:26,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:36:26,498 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 11:36:26,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 58 [2023-11-17 11:36:26,559 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 11:36:26,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079552633] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:36:26,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:36:26,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:36:26,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145138223] [2023-11-17 11:36:26,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:36:26,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:36:26,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:36:26,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:36:26,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:36:26,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:36:26,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 371 transitions, 10753 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:26,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:36:26,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:36:26,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:36:29,240 INFO L124 PetriNetUnfolderBase]: 837/1428 cut-off events. [2023-11-17 11:36:29,240 INFO L125 PetriNetUnfolderBase]: For 51820/51820 co-relation queries the response was YES. [2023-11-17 11:36:29,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16827 conditions, 1428 events. 837/1428 cut-off events. For 51820/51820 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7411 event pairs, 50 based on Foata normal form. 2/1430 useless extension candidates. Maximal degree in co-relation 16642. Up to 458 conditions per place. [2023-11-17 11:36:29,258 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 186 selfloop transitions, 226 changer transitions 9/421 dead transitions. [2023-11-17 11:36:29,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 421 transitions, 12254 flow [2023-11-17 11:36:29,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-17 11:36:29,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-17 11:36:29,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 220 transitions. [2023-11-17 11:36:29,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13095238095238096 [2023-11-17 11:36:29,260 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 220 transitions. [2023-11-17 11:36:29,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 220 transitions. [2023-11-17 11:36:29,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:36:29,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 220 transitions. [2023-11-17 11:36:29,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 13.75) internal successors, (220), 16 states have internal predecessors, (220), 0 states have call successors, (0), 0 states 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 11:36:29,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 105.0) internal successors, (1785), 17 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states 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 11:36:29,261 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 105.0) internal successors, (1785), 17 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states 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 11:36:29,261 INFO L175 Difference]: Start difference. First operand has 324 places, 371 transitions, 10753 flow. Second operand 16 states and 220 transitions. [2023-11-17 11:36:29,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 421 transitions, 12254 flow [2023-11-17 11:36:29,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 421 transitions, 12136 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-11-17 11:36:29,499 INFO L231 Difference]: Finished difference. Result has 338 places, 381 transitions, 11397 flow [2023-11-17 11:36:29,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10635, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=11397, PETRI_PLACES=338, PETRI_TRANSITIONS=381} [2023-11-17 11:36:29,500 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 314 predicate places. [2023-11-17 11:36:29,500 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 381 transitions, 11397 flow [2023-11-17 11:36:29,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:29,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:36:29,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:36:29,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-17 11:36:29,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:36:29,701 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:36:29,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:36:29,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1375076132, now seen corresponding path program 12 times [2023-11-17 11:36:29,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:36:29,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985312283] [2023-11-17 11:36:29,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:36:29,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:36:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:31,374 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 11:36:31,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:36:31,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985312283] [2023-11-17 11:36:31,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985312283] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:36:31,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824495983] [2023-11-17 11:36:31,374 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-17 11:36:31,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:36:31,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:36:31,375 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:36:31,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-17 11:36:32,878 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2023-11-17 11:36:32,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:36:32,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-17 11:36:32,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:36:32,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2023-11-17 11:36:33,128 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 11:36:33,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:36:33,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 11:36:33,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 58 [2023-11-17 11:36:33,367 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 11:36:33,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824495983] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:36:33,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:36:33,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:36:33,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567273335] [2023-11-17 11:36:33,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:36:33,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:36:33,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:36:33,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:36:33,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:36:33,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:36:33,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 381 transitions, 11397 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:33,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:36:33,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:36:33,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:36:36,662 INFO L124 PetriNetUnfolderBase]: 855/1466 cut-off events. [2023-11-17 11:36:36,662 INFO L125 PetriNetUnfolderBase]: For 55061/55061 co-relation queries the response was YES. [2023-11-17 11:36:36,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17648 conditions, 1466 events. 855/1466 cut-off events. For 55061/55061 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 7651 event pairs, 156 based on Foata normal form. 4/1470 useless extension candidates. Maximal degree in co-relation 17459. Up to 872 conditions per place. [2023-11-17 11:36:36,682 INFO L140 encePairwiseOnDemand]: 93/105 looper letters, 238 selfloop transitions, 187 changer transitions 11/436 dead transitions. [2023-11-17 11:36:36,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 436 transitions, 13002 flow [2023-11-17 11:36:36,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-17 11:36:36,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-17 11:36:36,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 290 transitions. [2023-11-17 11:36:36,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.12008281573498965 [2023-11-17 11:36:36,683 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 290 transitions. [2023-11-17 11:36:36,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 290 transitions. [2023-11-17 11:36:36,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:36:36,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 290 transitions. [2023-11-17 11:36:36,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 12.608695652173912) internal successors, (290), 23 states have internal predecessors, (290), 0 states have call successors, (0), 0 states 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 11:36:36,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 105.0) internal successors, (2520), 24 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states 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 11:36:36,685 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 105.0) internal successors, (2520), 24 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states 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 11:36:36,685 INFO L175 Difference]: Start difference. First operand has 338 places, 381 transitions, 11397 flow. Second operand 23 states and 290 transitions. [2023-11-17 11:36:36,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 436 transitions, 13002 flow [2023-11-17 11:36:37,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 436 transitions, 12480 flow, removed 18 selfloop flow, removed 12 redundant places. [2023-11-17 11:36:37,061 INFO L231 Difference]: Finished difference. Result has 354 places, 394 transitions, 11680 flow [2023-11-17 11:36:37,062 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10893, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=11680, PETRI_PLACES=354, PETRI_TRANSITIONS=394} [2023-11-17 11:36:37,062 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 330 predicate places. [2023-11-17 11:36:37,062 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 394 transitions, 11680 flow [2023-11-17 11:36:37,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:37,062 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:36:37,062 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:36:37,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-17 11:36:37,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:36:37,274 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:36:37,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:36:37,275 INFO L85 PathProgramCache]: Analyzing trace with hash -72301500, now seen corresponding path program 20 times [2023-11-17 11:36:37,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:36:37,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763767419] [2023-11-17 11:36:37,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:36:37,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:36:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:39,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:36:39,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:36:39,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763767419] [2023-11-17 11:36:39,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763767419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:36:39,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:36:39,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:36:39,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282927229] [2023-11-17 11:36:39,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:36:39,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:36:39,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:36:39,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:36:39,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:36:39,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:36:39,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 394 transitions, 11680 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:36:39,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:36:39,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:36:39,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:36:40,583 INFO L124 PetriNetUnfolderBase]: 837/1422 cut-off events. [2023-11-17 11:36:40,583 INFO L125 PetriNetUnfolderBase]: For 56468/56468 co-relation queries the response was YES. [2023-11-17 11:36:40,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17471 conditions, 1422 events. 837/1422 cut-off events. For 56468/56468 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7282 event pairs, 193 based on Foata normal form. 2/1424 useless extension candidates. Maximal degree in co-relation 17274. Up to 1021 conditions per place. [2023-11-17 11:36:40,600 INFO L140 encePairwiseOnDemand]: 96/105 looper letters, 245 selfloop transitions, 158 changer transitions 5/408 dead transitions. [2023-11-17 11:36:40,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 408 transitions, 12591 flow [2023-11-17 11:36:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 11:36:40,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-17 11:36:40,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 126 transitions. [2023-11-17 11:36:40,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13333333333333333 [2023-11-17 11:36:40,602 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 126 transitions. [2023-11-17 11:36:40,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 126 transitions. [2023-11-17 11:36:40,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:36:40,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 126 transitions. [2023-11-17 11:36:40,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 11:36:40,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 11:36:40,602 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 11:36:40,603 INFO L175 Difference]: Start difference. First operand has 354 places, 394 transitions, 11680 flow. Second operand 9 states and 126 transitions. [2023-11-17 11:36:40,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 408 transitions, 12591 flow [2023-11-17 11:36:40,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 408 transitions, 12404 flow, removed 45 selfloop flow, removed 12 redundant places. [2023-11-17 11:36:40,857 INFO L231 Difference]: Finished difference. Result has 347 places, 391 transitions, 11736 flow [2023-11-17 11:36:40,857 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=11451, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11736, PETRI_PLACES=347, PETRI_TRANSITIONS=391} [2023-11-17 11:36:40,857 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 323 predicate places. [2023-11-17 11:36:40,857 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 391 transitions, 11736 flow [2023-11-17 11:36:40,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:36:40,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:36:40,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:36:40,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-11-17 11:36:40,858 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:36:40,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:36:40,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1385800892, now seen corresponding path program 13 times [2023-11-17 11:36:40,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:36:40,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466097807] [2023-11-17 11:36:40,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:36:40,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:36:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:42,211 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 11:36:42,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:36:42,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466097807] [2023-11-17 11:36:42,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466097807] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:36:42,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555461085] [2023-11-17 11:36:42,211 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-17 11:36:42,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:36:42,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:36:42,212 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:36:42,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-17 11:36:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:42,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-17 11:36:42,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:36:43,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 43 [2023-11-17 11:36:43,111 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 11:36:43,112 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:36:43,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:36:43,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555461085] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:36:43,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:36:43,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:36:43,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285992133] [2023-11-17 11:36:43,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:36:43,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:36:43,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:36:43,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:36:43,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:36:43,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:36:43,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 391 transitions, 11736 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:43,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:36:43,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:36:43,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:36:46,282 INFO L124 PetriNetUnfolderBase]: 830/1409 cut-off events. [2023-11-17 11:36:46,282 INFO L125 PetriNetUnfolderBase]: For 59182/59182 co-relation queries the response was YES. [2023-11-17 11:36:46,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17449 conditions, 1409 events. 830/1409 cut-off events. For 59182/59182 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7235 event pairs, 153 based on Foata normal form. 2/1411 useless extension candidates. Maximal degree in co-relation 17253. Up to 853 conditions per place. [2023-11-17 11:36:46,298 INFO L140 encePairwiseOnDemand]: 93/105 looper letters, 232 selfloop transitions, 181 changer transitions 0/413 dead transitions. [2023-11-17 11:36:46,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 413 transitions, 12745 flow [2023-11-17 11:36:46,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-17 11:36:46,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-17 11:36:46,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 198 transitions. [2023-11-17 11:36:46,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.12571428571428572 [2023-11-17 11:36:46,299 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 198 transitions. [2023-11-17 11:36:46,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 198 transitions. [2023-11-17 11:36:46,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:36:46,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 198 transitions. [2023-11-17 11:36:46,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 13.2) internal successors, (198), 15 states have internal predecessors, (198), 0 states have call successors, (0), 0 states 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 11:36:46,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states 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 11:36:46,301 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states 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 11:36:46,301 INFO L175 Difference]: Start difference. First operand has 347 places, 391 transitions, 11736 flow. Second operand 15 states and 198 transitions. [2023-11-17 11:36:46,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 413 transitions, 12745 flow [2023-11-17 11:36:46,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 413 transitions, 12140 flow, removed 6 selfloop flow, removed 9 redundant places. [2023-11-17 11:36:46,560 INFO L231 Difference]: Finished difference. Result has 351 places, 390 transitions, 11446 flow [2023-11-17 11:36:46,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=11071, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11446, PETRI_PLACES=351, PETRI_TRANSITIONS=390} [2023-11-17 11:36:46,561 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 327 predicate places. [2023-11-17 11:36:46,561 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 390 transitions, 11446 flow [2023-11-17 11:36:46,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:46,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:36:46,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:36:46,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-17 11:36:46,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-11-17 11:36:46,762 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:36:46,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:36:46,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1375060756, now seen corresponding path program 21 times [2023-11-17 11:36:46,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:36:46,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255822313] [2023-11-17 11:36:46,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:36:46,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:36:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:48,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:36:48,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:36:48,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255822313] [2023-11-17 11:36:48,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255822313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:36:48,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:36:48,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:36:48,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651084190] [2023-11-17 11:36:48,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:36:48,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:36:48,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:36:48,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:36:48,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:36:48,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:36:48,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 390 transitions, 11446 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:36:48,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:36:48,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:36:48,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:36:49,525 INFO L124 PetriNetUnfolderBase]: 821/1390 cut-off events. [2023-11-17 11:36:49,525 INFO L125 PetriNetUnfolderBase]: For 56855/56855 co-relation queries the response was YES. [2023-11-17 11:36:49,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16894 conditions, 1390 events. 821/1390 cut-off events. For 56855/56855 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 7111 event pairs, 142 based on Foata normal form. 2/1392 useless extension candidates. Maximal degree in co-relation 16704. Up to 796 conditions per place. [2023-11-17 11:36:49,544 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 271 selfloop transitions, 129 changer transitions 2/402 dead transitions. [2023-11-17 11:36:49,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 402 transitions, 12306 flow [2023-11-17 11:36:49,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 11:36:49,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-17 11:36:49,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 136 transitions. [2023-11-17 11:36:49,545 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1295238095238095 [2023-11-17 11:36:49,545 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 136 transitions. [2023-11-17 11:36:49,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 136 transitions. [2023-11-17 11:36:49,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:36:49,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 136 transitions. [2023-11-17 11:36:49,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 11:36:49,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states 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 11:36:49,546 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states 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 11:36:49,546 INFO L175 Difference]: Start difference. First operand has 351 places, 390 transitions, 11446 flow. Second operand 10 states and 136 transitions. [2023-11-17 11:36:49,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 402 transitions, 12306 flow [2023-11-17 11:36:49,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 402 transitions, 11874 flow, removed 10 selfloop flow, removed 14 redundant places. [2023-11-17 11:36:49,797 INFO L231 Difference]: Finished difference. Result has 345 places, 387 transitions, 11186 flow [2023-11-17 11:36:49,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10957, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11186, PETRI_PLACES=345, PETRI_TRANSITIONS=387} [2023-11-17 11:36:49,797 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 321 predicate places. [2023-11-17 11:36:49,798 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 387 transitions, 11186 flow [2023-11-17 11:36:49,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:36:49,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:36:49,798 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:36:49,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-11-17 11:36:49,798 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:36:49,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:36:49,798 INFO L85 PathProgramCache]: Analyzing trace with hash -72316876, now seen corresponding path program 14 times [2023-11-17 11:36:49,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:36:49,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572834681] [2023-11-17 11:36:49,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:36:49,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:36:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:51,694 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 11:36:51,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:36:51,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572834681] [2023-11-17 11:36:51,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572834681] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:36:51,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566410473] [2023-11-17 11:36:51,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 11:36:51,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:36:51,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:36:51,695 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:36:51,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-17 11:36:52,705 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 11:36:52,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:36:52,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-17 11:36:52,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:36:52,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2023-11-17 11:36:52,974 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 11:36:52,974 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:36:53,193 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 11:36:53,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 58 [2023-11-17 11:36:53,250 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 11:36:53,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566410473] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:36:53,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:36:53,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:36:53,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455147417] [2023-11-17 11:36:53,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:36:53,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:36:53,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:36:53,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:36:53,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:36:53,251 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:36:53,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 387 transitions, 11186 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:53,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:36:53,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:36:53,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:36:56,576 INFO L124 PetriNetUnfolderBase]: 808/1359 cut-off events. [2023-11-17 11:36:56,576 INFO L125 PetriNetUnfolderBase]: For 54271/54271 co-relation queries the response was YES. [2023-11-17 11:36:56,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16517 conditions, 1359 events. 808/1359 cut-off events. For 54271/54271 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 6844 event pairs, 148 based on Foata normal form. 6/1365 useless extension candidates. Maximal degree in co-relation 16354. Up to 832 conditions per place. [2023-11-17 11:36:56,590 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 207 selfloop transitions, 197 changer transitions 4/408 dead transitions. [2023-11-17 11:36:56,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 408 transitions, 12064 flow [2023-11-17 11:36:56,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 11:36:56,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-17 11:36:56,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 210 transitions. [2023-11-17 11:36:56,592 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.11764705882352941 [2023-11-17 11:36:56,592 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 210 transitions. [2023-11-17 11:36:56,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 210 transitions. [2023-11-17 11:36:56,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:36:56,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 210 transitions. [2023-11-17 11:36:56,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 12.352941176470589) internal successors, (210), 17 states have internal predecessors, (210), 0 states have call successors, (0), 0 states 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 11:36:56,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 105.0) internal successors, (1890), 18 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states 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 11:36:56,594 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 105.0) internal successors, (1890), 18 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states 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 11:36:56,594 INFO L175 Difference]: Start difference. First operand has 345 places, 387 transitions, 11186 flow. Second operand 17 states and 210 transitions. [2023-11-17 11:36:56,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 408 transitions, 12064 flow [2023-11-17 11:36:56,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 408 transitions, 11457 flow, removed 4 selfloop flow, removed 14 redundant places. [2023-11-17 11:36:56,808 INFO L231 Difference]: Finished difference. Result has 344 places, 383 transitions, 10899 flow [2023-11-17 11:36:56,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10366, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10899, PETRI_PLACES=344, PETRI_TRANSITIONS=383} [2023-11-17 11:36:56,809 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 320 predicate places. [2023-11-17 11:36:56,809 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 383 transitions, 10899 flow [2023-11-17 11:36:56,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:56,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:36:56,809 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:36:56,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-17 11:36:57,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:36:57,010 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:36:57,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:36:57,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1375506227, now seen corresponding path program 10 times [2023-11-17 11:36:57,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:36:57,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455627493] [2023-11-17 11:36:57,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:36:57,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:36:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:36:58,344 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 11:36:58,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:36:58,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455627493] [2023-11-17 11:36:58,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455627493] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:36:58,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670467107] [2023-11-17 11:36:58,344 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-17 11:36:58,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:36:58,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:36:58,346 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:36:58,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-17 11:36:59,062 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-17 11:36:59,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:36:59,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-17 11:36:59,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:36:59,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2023-11-17 11:36:59,309 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 11:36:59,310 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:36:59,548 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 11:36:59,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670467107] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:36:59,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:36:59,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:36:59,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071577092] [2023-11-17 11:36:59,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:36:59,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:36:59,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:36:59,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:36:59,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:36:59,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:36:59,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 383 transitions, 10899 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:36:59,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:36:59,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:36:59,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:37:01,682 INFO L124 PetriNetUnfolderBase]: 807/1360 cut-off events. [2023-11-17 11:37:01,683 INFO L125 PetriNetUnfolderBase]: For 52718/52718 co-relation queries the response was YES. [2023-11-17 11:37:01,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16568 conditions, 1360 events. 807/1360 cut-off events. For 52718/52718 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 6898 event pairs, 106 based on Foata normal form. 4/1364 useless extension candidates. Maximal degree in co-relation 16381. Up to 500 conditions per place. [2023-11-17 11:37:01,697 INFO L140 encePairwiseOnDemand]: 96/105 looper letters, 231 selfloop transitions, 171 changer transitions 2/404 dead transitions. [2023-11-17 11:37:01,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 404 transitions, 11845 flow [2023-11-17 11:37:01,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-17 11:37:01,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-17 11:37:01,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 183 transitions. [2023-11-17 11:37:01,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.12448979591836734 [2023-11-17 11:37:01,699 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 183 transitions. [2023-11-17 11:37:01,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 183 transitions. [2023-11-17 11:37:01,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:37:01,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 183 transitions. [2023-11-17 11:37:01,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 13.071428571428571) internal successors, (183), 14 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 11:37:01,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states 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 11:37:01,700 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states 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 11:37:01,700 INFO L175 Difference]: Start difference. First operand has 344 places, 383 transitions, 10899 flow. Second operand 14 states and 183 transitions. [2023-11-17 11:37:01,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 404 transitions, 11845 flow [2023-11-17 11:37:01,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 404 transitions, 11563 flow, removed 18 selfloop flow, removed 11 redundant places. [2023-11-17 11:37:01,898 INFO L231 Difference]: Finished difference. Result has 347 places, 382 transitions, 11054 flow [2023-11-17 11:37:01,898 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10552, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11054, PETRI_PLACES=347, PETRI_TRANSITIONS=382} [2023-11-17 11:37:01,898 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 323 predicate places. [2023-11-17 11:37:01,898 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 382 transitions, 11054 flow [2023-11-17 11:37:01,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:37:01,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:37:01,899 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:37:01,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-17 11:37:02,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2023-11-17 11:37:02,100 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:37:02,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:37:02,100 INFO L85 PathProgramCache]: Analyzing trace with hash -72733950, now seen corresponding path program 22 times [2023-11-17 11:37:02,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:37:02,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526616835] [2023-11-17 11:37:02,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:37:02,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:37:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:37:03,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:37:03,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:37:03,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526616835] [2023-11-17 11:37:03,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526616835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:37:03,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:37:03,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:37:03,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040089660] [2023-11-17 11:37:03,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:37:03,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:37:03,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:37:03,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:37:03,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:37:03,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:37:03,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 382 transitions, 11054 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:37:03,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:37:03,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:37:03,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:37:04,754 INFO L124 PetriNetUnfolderBase]: 791/1328 cut-off events. [2023-11-17 11:37:04,754 INFO L125 PetriNetUnfolderBase]: For 53959/53959 co-relation queries the response was YES. [2023-11-17 11:37:04,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16349 conditions, 1328 events. 791/1328 cut-off events. For 53959/53959 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6629 event pairs, 138 based on Foata normal form. 2/1330 useless extension candidates. Maximal degree in co-relation 16161. Up to 796 conditions per place. [2023-11-17 11:37:04,770 INFO L140 encePairwiseOnDemand]: 96/105 looper letters, 209 selfloop transitions, 177 changer transitions 2/388 dead transitions. [2023-11-17 11:37:04,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 388 transitions, 11790 flow [2023-11-17 11:37:04,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:37:04,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:37:04,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 113 transitions. [2023-11-17 11:37:04,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.13452380952380952 [2023-11-17 11:37:04,771 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 113 transitions. [2023-11-17 11:37:04,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 113 transitions. [2023-11-17 11:37:04,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:37:04,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 113 transitions. [2023-11-17 11:37:04,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states 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 11:37:04,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:37:04,772 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:37:04,772 INFO L175 Difference]: Start difference. First operand has 347 places, 382 transitions, 11054 flow. Second operand 8 states and 113 transitions. [2023-11-17 11:37:04,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 388 transitions, 11790 flow [2023-11-17 11:37:04,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 388 transitions, 11419 flow, removed 8 selfloop flow, removed 12 redundant places. [2023-11-17 11:37:05,009 INFO L231 Difference]: Finished difference. Result has 341 places, 376 transitions, 10897 flow [2023-11-17 11:37:05,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10543, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10897, PETRI_PLACES=341, PETRI_TRANSITIONS=376} [2023-11-17 11:37:05,010 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 317 predicate places. [2023-11-17 11:37:05,010 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 376 transitions, 10897 flow [2023-11-17 11:37:05,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:37:05,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:37:05,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:37:05,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2023-11-17 11:37:05,011 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:37:05,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:37:05,011 INFO L85 PathProgramCache]: Analyzing trace with hash -72746971, now seen corresponding path program 11 times [2023-11-17 11:37:05,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:37:05,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528144158] [2023-11-17 11:37:05,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:37:05,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:37:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:37:06,324 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 11:37:06,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:37:06,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528144158] [2023-11-17 11:37:06,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528144158] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:37:06,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139530567] [2023-11-17 11:37:06,324 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-17 11:37:06,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:37:06,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:37:06,325 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:37:06,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-17 11:37:07,045 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 11:37:07,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:37:07,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-17 11:37:07,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:37:07,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2023-11-17 11:37:07,296 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 11:37:07,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:37:07,491 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 11:37:07,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 58 [2023-11-17 11:37:07,550 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 11:37:07,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139530567] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:37:07,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:37:07,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-11-17 11:37:07,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341983795] [2023-11-17 11:37:07,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:37:07,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 11:37:07,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:37:07,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 11:37:07,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2023-11-17 11:37:07,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:37:07,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 376 transitions, 10897 flow. Second operand has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:37:07,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:37:07,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:37:07,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:37:10,956 INFO L124 PetriNetUnfolderBase]: 798/1341 cut-off events. [2023-11-17 11:37:10,956 INFO L125 PetriNetUnfolderBase]: For 54047/54047 co-relation queries the response was YES. [2023-11-17 11:37:10,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16517 conditions, 1341 events. 798/1341 cut-off events. For 54047/54047 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 6734 event pairs, 38 based on Foata normal form. 2/1343 useless extension candidates. Maximal degree in co-relation 16324. Up to 451 conditions per place. [2023-11-17 11:37:10,972 INFO L140 encePairwiseOnDemand]: 95/105 looper letters, 182 selfloop transitions, 223 changer transitions 8/413 dead transitions. [2023-11-17 11:37:10,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 413 transitions, 12156 flow [2023-11-17 11:37:10,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-17 11:37:10,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-17 11:37:10,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 209 transitions. [2023-11-17 11:37:10,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1244047619047619 [2023-11-17 11:37:10,973 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 209 transitions. [2023-11-17 11:37:10,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 209 transitions. [2023-11-17 11:37:10,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:37:10,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 209 transitions. [2023-11-17 11:37:10,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 13.0625) internal successors, (209), 16 states have internal predecessors, (209), 0 states have call successors, (0), 0 states 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 11:37:10,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 105.0) internal successors, (1785), 17 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states 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 11:37:10,975 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 105.0) internal successors, (1785), 17 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states 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 11:37:10,975 INFO L175 Difference]: Start difference. First operand has 341 places, 376 transitions, 10897 flow. Second operand 16 states and 209 transitions. [2023-11-17 11:37:10,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 413 transitions, 12156 flow [2023-11-17 11:37:11,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 413 transitions, 11632 flow, removed 3 selfloop flow, removed 10 redundant places. [2023-11-17 11:37:11,219 INFO L231 Difference]: Finished difference. Result has 346 places, 380 transitions, 10935 flow [2023-11-17 11:37:11,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10336, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=10935, PETRI_PLACES=346, PETRI_TRANSITIONS=380} [2023-11-17 11:37:11,220 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 322 predicate places. [2023-11-17 11:37:11,220 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 380 transitions, 10935 flow [2023-11-17 11:37:11,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.7) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 11:37:11,220 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:37:11,220 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:37:11,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-17 11:37:11,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:37:11,422 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:37:11,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:37:11,422 INFO L85 PathProgramCache]: Analyzing trace with hash -80748257, now seen corresponding path program 20 times [2023-11-17 11:37:11,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:37:11,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730353600] [2023-11-17 11:37:11,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:37:11,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:37:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:37:12,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:37:12,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:37:12,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730353600] [2023-11-17 11:37:12,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730353600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:37:12,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:37:12,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 11:37:12,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668846952] [2023-11-17 11:37:12,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:37:12,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 11:37:12,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:37:12,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 11:37:12,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-17 11:37:12,189 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 105 [2023-11-17 11:37:12,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 380 transitions, 10935 flow. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:37:12,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:37:12,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 105 [2023-11-17 11:37:12,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:37:13,873 INFO L124 PetriNetUnfolderBase]: 784/1311 cut-off events. [2023-11-17 11:37:13,874 INFO L125 PetriNetUnfolderBase]: For 52873/52873 co-relation queries the response was YES. [2023-11-17 11:37:13,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16292 conditions, 1311 events. 784/1311 cut-off events. For 52873/52873 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6546 event pairs, 175 based on Foata normal form. 2/1313 useless extension candidates. Maximal degree in co-relation 16099. Up to 965 conditions per place. [2023-11-17 11:37:13,891 INFO L140 encePairwiseOnDemand]: 96/105 looper letters, 223 selfloop transitions, 153 changer transitions 8/384 dead transitions. [2023-11-17 11:37:13,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 384 transitions, 11622 flow [2023-11-17 11:37:13,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 11:37:13,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 11:37:13,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 108 transitions. [2023-11-17 11:37:13,892 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.12857142857142856 [2023-11-17 11:37:13,892 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 108 transitions. [2023-11-17 11:37:13,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 108 transitions. [2023-11-17 11:37:13,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:37:13,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 108 transitions. [2023-11-17 11:37:13,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 11:37:13,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:37:13,893 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 11:37:13,894 INFO L175 Difference]: Start difference. First operand has 346 places, 380 transitions, 10935 flow. Second operand 8 states and 108 transitions. [2023-11-17 11:37:13,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 384 transitions, 11622 flow [2023-11-17 11:37:14,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 384 transitions, 10631 flow, removed 22 selfloop flow, removed 22 redundant places. [2023-11-17 11:37:14,125 INFO L231 Difference]: Finished difference. Result has 324 places, 371 transitions, 10033 flow [2023-11-17 11:37:14,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9775, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10033, PETRI_PLACES=324, PETRI_TRANSITIONS=371} [2023-11-17 11:37:14,126 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 300 predicate places. [2023-11-17 11:37:14,126 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 371 transitions, 10033 flow [2023-11-17 11:37:14,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 11:37:14,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:37:14,126 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:37:14,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2023-11-17 11:37:14,127 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:37:14,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:37:14,127 INFO L85 PathProgramCache]: Analyzing trace with hash 89504437, now seen corresponding path program 1 times [2023-11-17 11:37:14,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:37:14,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490141210] [2023-11-17 11:37:14,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:37:14,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:37:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 11:37:14,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-17 11:37:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 11:37:14,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-17 11:37:14,306 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-17 11:37:14,307 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2023-11-17 11:37:14,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-11-17 11:37:14,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2023-11-17 11:37:14,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-11-17 11:37:14,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2023-11-17 11:37:14,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-11-17 11:37:14,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2023-11-17 11:37:14,309 INFO L445 BasicCegarLoop]: Path program histogram: [22, 20, 14, 11, 5, 1, 1, 1, 1, 1] [2023-11-17 11:37:14,314 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 11:37:14,314 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 11:37:14,393 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre1143 could not be translated [2023-11-17 11:37:14,401 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre1145 could not be translated [2023-11-17 11:37:14,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 11:37:14 BasicIcfg [2023-11-17 11:37:14,424 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 11:37:14,425 INFO L158 Benchmark]: Toolchain (without parser) took 324147.29ms. Allocated memory was 289.4MB in the beginning and 813.7MB in the end (delta: 524.3MB). Free memory was 238.3MB in the beginning and 283.0MB in the end (delta: -44.6MB). Peak memory consumption was 480.7MB. Max. memory is 8.0GB. [2023-11-17 11:37:14,425 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 190.8MB. Free memory is still 143.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:37:14,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 8030.80ms. Allocated memory was 289.4MB in the beginning and 391.1MB in the end (delta: 101.7MB). Free memory was 237.8MB in the beginning and 218.0MB in the end (delta: 19.9MB). Peak memory consumption was 142.5MB. Max. memory is 8.0GB. [2023-11-17 11:37:14,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 167.29ms. Allocated memory is still 391.1MB. Free memory was 218.0MB in the beginning and 208.0MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-11-17 11:37:14,425 INFO L158 Benchmark]: Boogie Preprocessor took 85.12ms. Allocated memory is still 391.1MB. Free memory was 208.0MB in the beginning and 203.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-11-17 11:37:14,425 INFO L158 Benchmark]: RCFGBuilder took 1534.63ms. Allocated memory is still 391.1MB. Free memory was 203.8MB in the beginning and 299.5MB in the end (delta: -95.7MB). Peak memory consumption was 50.6MB. Max. memory is 8.0GB. [2023-11-17 11:37:14,426 INFO L158 Benchmark]: TraceAbstraction took 314321.51ms. Allocated memory was 391.1MB in the beginning and 813.7MB in the end (delta: 422.6MB). Free memory was 298.4MB in the beginning and 283.0MB in the end (delta: 15.5MB). Peak memory consumption was 437.5MB. Max. memory is 8.0GB. [2023-11-17 11:37:14,427 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 190.8MB. Free memory is still 143.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 8030.80ms. Allocated memory was 289.4MB in the beginning and 391.1MB in the end (delta: 101.7MB). Free memory was 237.8MB in the beginning and 218.0MB in the end (delta: 19.9MB). Peak memory consumption was 142.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 167.29ms. Allocated memory is still 391.1MB. Free memory was 218.0MB in the beginning and 208.0MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 85.12ms. Allocated memory is still 391.1MB. Free memory was 208.0MB in the beginning and 203.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1534.63ms. Allocated memory is still 391.1MB. Free memory was 203.8MB in the beginning and 299.5MB in the end (delta: -95.7MB). Peak memory consumption was 50.6MB. Max. memory is 8.0GB. * TraceAbstraction took 314321.51ms. Allocated memory was 391.1MB in the beginning and 813.7MB in the end (delta: 422.6MB). Free memory was 298.4MB in the beginning and 283.0MB in the end (delta: 15.5MB). Peak memory consumption was 437.5MB. 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] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre1143 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre1145 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.1s, 46 PlacesBefore, 24 PlacesAfterwards, 49 TransitionsBefore, 23 TransitionsAfterwards, 1134 CoEnabledTransitionPairs, 5 FixpointIterations, 0 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 52 TotalNumberOfCompositions, 2391 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1597, independent: 1516, independent conditional: 0, independent unconditional: 1516, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 953, independent: 924, independent conditional: 0, independent unconditional: 924, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 953, independent: 892, independent conditional: 0, independent unconditional: 892, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 61, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2311, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 2147, unknown conditional: 0, unknown unconditional: 2147] ], Cache Queries: [ total: 1597, independent: 592, independent conditional: 0, independent unconditional: 592, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 953, unknown conditional: 0, unknown unconditional: 953] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 174]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L246] 0 unsigned long jiffies; [L6519] 0 const unsigned int default_alloc_size = 4; [L6686] 0 static struct mutex nvram_mutex = { 1, 0 }; [L6687] 0 static ssize_t nvram_len; [L6784-L6790] 0 struct file_operations nvram_fops = { .owner = ((struct module *)0), .llseek = nvram_llseek, .read = read_nvram, .write = write_nvram, .unlocked_ioctl = nvram_unlocked_ioctl, }; [L6791-L6795] 0 static struct miscdevice nvram_dev = { 144, "nvram", &nvram_fops }; [L6814] 0 int (* _whoop_init)(void) = nvram_init; [L6815] 0 void (* _whoop_exit)(void) = nvram_cleanup; [L6816] 0 struct inode *whoop_inode_0; [L6817] 0 struct file *whoop_file_0; [L6818] 0 struct inode *whoop_inode_1; [L6819] 0 struct file *whoop_file_1; [L6820] 0 struct inode *whoop_inode_2; [L6821] 0 struct file *whoop_file_2; [L6822] 0 struct inode *whoop_inode_3; [L6823] 0 struct file *whoop_file_3; [L6824] 0 struct inode *whoop_inode_4; [L6825] 0 struct file *whoop_file_4; [L6826] 0 struct pci_dev *whoop_pci_dev; [L6827] 0 char *whoop_buf; [L6828] 0 struct platform_device *whoop_platform_device; [L6829] 0 struct vm_area_struct *whoop_vm_area_struct; [L6830] 0 struct cx_dev *whoop_cx_dev; [L6831] 0 poll_table *whoop_poll_table; [L6832] 0 loff_t *whoop_loff_t; [L6833] 0 int whoop_int; [L6861] 0 whoop_inode_0 = (struct inode *) malloc(sizeof(struct inode)) [L6862] 0 whoop_file_0 = (struct file *) malloc(sizeof(struct file)) [L6863] 0 whoop_inode_1 = (struct inode *) malloc(sizeof(struct inode)) [L6864] 0 whoop_file_1 = (struct file *) malloc(sizeof(struct file)) [L6865] 0 whoop_inode_2 = (struct inode *) malloc(sizeof(struct inode)) [L6866] 0 whoop_file_2 = (struct file *) malloc(sizeof(struct file)) [L6867] 0 whoop_inode_3 = (struct inode *) malloc(sizeof(struct inode)) [L6868] 0 whoop_file_3 = (struct file *) malloc(sizeof(struct file)) [L6869] 0 whoop_inode_4 = (struct inode *) malloc(sizeof(struct inode)) [L6870] 0 whoop_file_4 = (struct file *) malloc(sizeof(struct file)) [L6871] 0 whoop_pci_dev = (struct pci_dev *) malloc(sizeof(struct pci_dev)) [L6872] 0 whoop_buf = (char *) malloc(sizeof(char)) [L6873] 0 whoop_platform_device = (struct platform_device *) malloc(sizeof(struct platform_device)) [L6874] 0 whoop_vm_area_struct = (struct vm_area_struct *) malloc(sizeof(struct vm_area_struct)) [L6875] 0 whoop_cx_dev = (struct cx_dev *) malloc(sizeof(struct cx_dev)) [L6876] 0 whoop_poll_table = (poll_table *) malloc(sizeof(poll_table)) [L6877] 0 whoop_loff_t = (loff_t *) malloc(sizeof(loff_t)) [L6878] 0 whoop_int = __VERIFIER_nondet_int() [L6879] CALL 0 assume_abort_if_not(whoop_int >= 0) [L170] COND FALSE 0 !(!cond) [L6879] RET 0 assume_abort_if_not(whoop_int >= 0) [L6880] CALL, EXPR 0 _whoop_init() [L6798] 0 int ret = 0; [L6799-L6800] CALL 0 printk("\001" "6" "Generic non-volatile memory driver v%s\n", "1.1") [L6647] 0 return __VERIFIER_nondet_int(); [L6799-L6800] RET 0 printk("\001" "6" "Generic non-volatile memory driver v%s\n", "1.1") [L6801] CALL, EXPR 0 misc_register(&nvram_dev) [L6621] 0 return __VERIFIER_nondet_int(); [L6801] RET, EXPR 0 misc_register(&nvram_dev) [L6801] 0 ret = misc_register(&nvram_dev) [L6802] COND FALSE 0 !(ret != 0) [L6804] CALL, EXPR 0 nvram_get_size() [L6629] 0 return __VERIFIER_nondet_long(); [L6804] RET, EXPR 0 nvram_get_size() [L6804] 0 nvram_len = nvram_get_size() [L6805] COND FALSE 0 !(nvram_len < 0) [L6808] 0 return ret; [L6880] RET, EXPR 0 _whoop_init() [L6880] 0 int _whoop_init_result = _whoop_init(); [L6881] 0 pthread_t pthread_t_write_nvram; [L6882] 0 pthread_t pthread_t_read_nvram; [L6883] FCALL, FORK 0 pthread_create(&pthread_t_write_nvram, ((void *)0), whoop_wrapper_write_nvram, ((void *)0)) VAL [_whoop_exit={-1:5}, _whoop_init={-1:4}, _whoop_init_result=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=15, nvram_mutex={7:0}, pthread_t_read_nvram={11:0}, pthread_t_write_nvram={10:0}, whoop_buf={-6:0}, whoop_cx_dev={-7:0}, whoop_file_0={-14:0}, whoop_file_1={-15:0}, whoop_file_2={-2:0}, whoop_file_3={-3:0}, whoop_file_4={-11:0}, whoop_inode_0={-9:0}, whoop_inode_1={-16:0}, whoop_inode_2={-18:0}, whoop_inode_3={-17:0}, whoop_inode_4={-8:0}, whoop_int=1, whoop_loff_t={-12:0}, whoop_pci_dev={-13:0}, whoop_platform_device={-5:0}, whoop_poll_table={-4:0}, whoop_vm_area_struct={-10:0}] [L6836] CALL 1 write_nvram(whoop_file_0, whoop_buf, whoop_int, whoop_loff_t) [L6738] 1 unsigned int i; [L6739] 1 const char *p = buf; [L6740] 1 char c = __VERIFIER_nondet_char(); [L6741] CALL, EXPR 1 access_ok(0, buf, count) [L6548] 1 return __VERIFIER_nondet_int(); [L6741] RET, EXPR 1 access_ok(0, buf, count) [L6741] COND FALSE 1 !(!access_ok(0, buf, count)) [L6744] EXPR 1 \read(*ppos) [L6744] 1 ssize_t lppos = *ppos; [L6746] COND FALSE 1 !(lppos >= nvram_len) VAL [\old(count)=1, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-6:0}, buf={-6:0}, c=0, count=1, default_alloc_size=4, file={-14:0}, file={-14:0}, jiffies=0, lppos=13, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=15, nvram_mutex={7:0}, p={-6:0}, ppos={-12:0}, ppos={-12:0}, whoop_buf={-6:0}, whoop_cx_dev={-7:0}, whoop_file_0={-14:0}, whoop_file_1={-15:0}, whoop_file_2={-2:0}, whoop_file_3={-3:0}, whoop_file_4={-11:0}, whoop_inode_0={-9:0}, whoop_inode_1={-16:0}, whoop_inode_2={-18:0}, whoop_inode_3={-17:0}, whoop_inode_4={-8:0}, whoop_int=1, whoop_loff_t={-12:0}, whoop_pci_dev={-13:0}, whoop_platform_device={-5:0}, whoop_poll_table={-4:0}, whoop_vm_area_struct={-10:0}] [L6749] EXPR 1 \read(*ppos) [L6749] 1 lppos = *ppos [L6751] 1 i = lppos VAL [\old(count)=1, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-6:0}, buf={-6:0}, c=0, count=1, default_alloc_size=4, file={-14:0}, file={-14:0}, i=13, jiffies=0, lppos=13, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=15, nvram_mutex={7:0}, p={-6:0}, ppos={-12:0}, ppos={-12:0}, whoop_buf={-6:0}, whoop_cx_dev={-7:0}, whoop_file_0={-14:0}, whoop_file_1={-15:0}, whoop_file_2={-2:0}, whoop_file_3={-3:0}, whoop_file_4={-11:0}, whoop_inode_0={-9:0}, whoop_inode_1={-16:0}, whoop_inode_2={-18:0}, whoop_inode_3={-17:0}, whoop_inode_4={-8:0}, whoop_int=1, whoop_loff_t={-12:0}, whoop_pci_dev={-13:0}, whoop_platform_device={-5:0}, whoop_poll_table={-4:0}, whoop_vm_area_struct={-10:0}] [L6884] FCALL, FORK 0 pthread_create(&pthread_t_read_nvram, ((void *)0), whoop_wrapper_read_nvram, ((void *)0)) VAL [_whoop_exit={-1:5}, _whoop_init={-1:4}, _whoop_init_result=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=15, nvram_mutex={7:0}, pthread_t_read_nvram={11:0}, pthread_t_write_nvram={10:0}, whoop_buf={-6:0}, whoop_cx_dev={-7:0}, whoop_file_0={-14:0}, whoop_file_1={-15:0}, whoop_file_2={-2:0}, whoop_file_3={-3:0}, whoop_file_4={-11:0}, whoop_inode_0={-9:0}, whoop_inode_1={-16:0}, whoop_inode_2={-18:0}, whoop_inode_3={-17:0}, whoop_inode_4={-8:0}, whoop_int=1, whoop_loff_t={-12:0}, whoop_pci_dev={-13:0}, whoop_platform_device={-5:0}, whoop_poll_table={-4:0}, whoop_vm_area_struct={-10:0}] [L6751] COND TRUE 1 count > 0 && i < nvram_len [L6752] CALL 1 __get_user(c, p) [L6532] 1 return __VERIFIER_nondet_int(); [L6752] RET 1 __get_user(c, p) [L6752] COND FALSE 1 !(__get_user(c, p)) [L6754] FCALL 1 nvram_write_byte(c, i) [L6751] 1 ++i [L6751] 1 ++p [L6751] 1 --count VAL [\old(count)=1, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-6:0}, buf={-6:0}, c=0, count=0, default_alloc_size=4, file={-14:0}, file={-14:0}, i=14, jiffies=0, lppos=13, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=15, nvram_mutex={7:0}, p={-6:1}, ppos={-12:0}, ppos={-12:0}, whoop_buf={-6:0}, whoop_cx_dev={-7:0}, whoop_file_0={-14:0}, whoop_file_1={-15:0}, whoop_file_2={-2:0}, whoop_file_3={-3:0}, whoop_file_4={-11:0}, whoop_inode_0={-9:0}, whoop_inode_1={-16:0}, whoop_inode_2={-18:0}, whoop_inode_3={-17:0}, whoop_inode_4={-8:0}, whoop_int=1, whoop_loff_t={-12:0}, whoop_pci_dev={-13:0}, whoop_platform_device={-5:0}, whoop_poll_table={-4:0}, whoop_vm_area_struct={-10:0}] [L6751] COND FALSE 1 !(count > 0 && i < nvram_len) [L6757] 1 *ppos = i VAL [\old(count)=1, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-6:0}, buf={-6:0}, c=0, count=0, default_alloc_size=4, file={-14:0}, file={-14:0}, i=14, jiffies=0, lppos=13, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=15, nvram_mutex={7:0}, p={-6:1}, ppos={-12:0}, ppos={-12:0}, whoop_buf={-6:0}, whoop_cx_dev={-7:0}, whoop_file_0={-14:0}, whoop_file_1={-15:0}, whoop_file_2={-2:0}, whoop_file_3={-3:0}, whoop_file_4={-11:0}, whoop_inode_0={-9:0}, whoop_inode_1={-16:0}, whoop_inode_2={-18:0}, whoop_inode_3={-17:0}, whoop_inode_4={-8:0}, whoop_int=1, whoop_loff_t={-12:0}, whoop_pci_dev={-13:0}, whoop_platform_device={-5:0}, whoop_poll_table={-4:0}, whoop_vm_area_struct={-10:0}] [L6841] CALL 2 read_nvram(whoop_file_1, whoop_buf, whoop_int, whoop_loff_t) [L6711] 2 unsigned int i; [L6712] 2 char *p = buf; [L6713] CALL, EXPR 2 access_ok(1, buf, count) [L6548] 2 return __VERIFIER_nondet_int(); [L6713] RET, EXPR 2 access_ok(1, buf, count) [L6713] COND FALSE 2 !(!access_ok(1, buf, count)) [L6716] EXPR 2 \read(*ppos) [L6716] 2 ssize_t lppos = *ppos; [L6718] COND FALSE 2 !(lppos >= nvram_len) [L6721] EXPR 2 \read(*ppos) [L6721] 2 lppos = *ppos [L6723] 2 i = lppos VAL [\old(count)=1, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-6:0}, buf={-6:0}, count=1, default_alloc_size=4, file={-15:0}, file={-15:0}, i=14, jiffies=0, lppos=14, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=15, nvram_mutex={7:0}, p={-6:0}, ppos={-12:0}, ppos={-12:0}, whoop_buf={-6:0}, whoop_cx_dev={-7:0}, whoop_file_0={-14:0}, whoop_file_1={-15:0}, whoop_file_2={-2:0}, whoop_file_3={-3:0}, whoop_file_4={-11:0}, whoop_inode_0={-9:0}, whoop_inode_1={-16:0}, whoop_inode_2={-18:0}, whoop_inode_3={-17:0}, whoop_inode_4={-8:0}, whoop_int=1, whoop_loff_t={-12:0}, whoop_pci_dev={-13:0}, whoop_platform_device={-5:0}, whoop_poll_table={-4:0}, whoop_vm_area_struct={-10:0}] [L6723] COND TRUE 2 count > 0 && i < nvram_len [L6724] CALL, EXPR 2 nvram_read_byte(i) [L6633] 2 return __VERIFIER_nondet_uchar(); [L6724] RET, EXPR 2 nvram_read_byte(i) [L6724] CALL 2 __put_user(nvram_read_byte(i), p) [L6540] 2 return __VERIFIER_nondet_int(); [L6724] RET 2 __put_user(nvram_read_byte(i), p) [L6724] COND FALSE 2 !(__put_user(nvram_read_byte(i), p)) [L6723] 2 ++i [L6723] 2 ++p [L6723] 2 --count VAL [\old(count)=1, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-6:0}, buf={-6:0}, count=0, default_alloc_size=4, file={-15:0}, file={-15:0}, i=15, jiffies=0, lppos=14, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=15, nvram_mutex={7:0}, p={-6:1}, ppos={-12:0}, ppos={-12:0}, whoop_buf={-6:0}, whoop_cx_dev={-7:0}, whoop_file_0={-14:0}, whoop_file_1={-15:0}, whoop_file_2={-2:0}, whoop_file_3={-3:0}, whoop_file_4={-11:0}, whoop_inode_0={-9:0}, whoop_inode_1={-16:0}, whoop_inode_2={-18:0}, whoop_inode_3={-17:0}, whoop_inode_4={-8:0}, whoop_int=1, whoop_loff_t={-12:0}, whoop_pci_dev={-13:0}, whoop_platform_device={-5:0}, whoop_poll_table={-4:0}, whoop_vm_area_struct={-10:0}] [L6723] COND FALSE 2 !(count > 0 && i < nvram_len) [L6727] 2 *ppos = i VAL [\old(count)=1, _whoop_exit={-1:5}, _whoop_init={-1:4}, buf={-6:0}, buf={-6:0}, count=0, default_alloc_size=4, file={-15:0}, file={-15:0}, i=15, jiffies=0, lppos=14, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=15, nvram_mutex={7:0}, p={-6:1}, ppos={-12:0}, ppos={-12:0}, whoop_buf={-6:0}, whoop_cx_dev={-7:0}, whoop_file_0={-14:0}, whoop_file_1={-15:0}, whoop_file_2={-2:0}, whoop_file_3={-3:0}, whoop_file_4={-11:0}, whoop_inode_0={-9:0}, whoop_inode_1={-16:0}, whoop_inode_2={-18:0}, whoop_inode_3={-17:0}, whoop_inode_4={-8:0}, whoop_int=1, whoop_loff_t={-12:0}, whoop_pci_dev={-13:0}, whoop_platform_device={-5:0}, whoop_poll_table={-4:0}, whoop_vm_area_struct={-10:0}] [L6760] EXPR 1 \read(*ppos) [L6760] 1 lppos = *ppos [L6762] CALL 1 __VERIFIER_assert(lppos == i) [L173] COND TRUE 1 !(cond) [L174] 1 reach_error() VAL [\old(cond)=0, _whoop_exit={-1:5}, _whoop_init={-1:4}, cond=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=15, nvram_mutex={7:0}, whoop_buf={-6:0}, whoop_cx_dev={-7:0}, whoop_file_0={-14:0}, whoop_file_1={-15:0}, whoop_file_2={-2:0}, whoop_file_3={-3:0}, whoop_file_4={-11:0}, whoop_inode_0={-9:0}, whoop_inode_1={-16:0}, whoop_inode_2={-18:0}, whoop_inode_3={-17:0}, whoop_inode_4={-8:0}, whoop_int=1, whoop_loff_t={-12:0}, whoop_pci_dev={-13:0}, whoop_platform_device={-5:0}, whoop_poll_table={-4:0}, whoop_vm_area_struct={-10:0}] - UnprovableResult [Line: 174]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6883]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 6884]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 80 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 314.1s, OverallIterations: 77, TraceHistogramMax: 1, PathProgramHistogramMax: 22, EmptinessCheckTime: 0.0s, AutomataDifference: 154.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5160 SdHoareTripleChecker+Valid, 83.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5160 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 78.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 875 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23724 IncrementalHoareTripleChecker+Invalid, 24599 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 875 mSolverCounterUnsat, 0 mSDtfsCounter, 23724 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1789 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 1360 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4557 ImplicationChecksByTransitivity, 56.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11736occurred in iteration=69, InterpolantAutomatonStates: 830, 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: 1.2s SsaConstructionTime, 11.6s SatisfiabilityAnalysisTime, 120.7s InterpolantComputationTime, 1228 NumberOfCodeBlocks, 1228 NumberOfCodeBlocksAsserted, 125 NumberOfCheckSat, 1387 ConstructedInterpolants, 5 QuantifiedInterpolants, 58299 SizeOfPredicates, 576 NumberOfNonLiveVariables, 14715 ConjunctsInSsa, 1098 ConjunctsInUnsatCore, 128 InterpolantComputations, 54 PerfectInterpolantSequences, 45/119 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-17 11:37:14,648 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...