./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c4f91361 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16a5066f849f5d60682ad0c8a91e636e020ca0673e24382bdab87cda9228557d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-c4f9136-m [2023-11-23 15:23:26,360 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 15:23:26,394 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 15:23:26,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 15:23:26,397 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 15:23:26,410 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 15:23:26,411 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 15:23:26,411 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 15:23:26,411 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 15:23:26,412 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 15:23:26,412 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 15:23:26,412 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 15:23:26,413 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 15:23:26,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 15:23:26,413 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 15:23:26,414 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 15:23:26,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 15:23:26,414 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 15:23:26,414 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 15:23:26,415 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 15:23:26,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 15:23:26,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 15:23:26,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 15:23:26,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 15:23:26,416 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 15:23:26,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 15:23:26,417 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 15:23:26,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 15:23:26,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 15:23:26,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 15:23:26,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 15:23:26,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 15:23:26,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 15:23:26,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 15:23:26,418 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 15:23:26,419 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 15:23:26,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 15:23:26,419 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 15:23:26,419 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 15:23:26,419 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 15:23:26,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 15:23:26,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 15:23:26,420 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16a5066f849f5d60682ad0c8a91e636e020ca0673e24382bdab87cda9228557d [2023-11-23 15:23:26,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 15:23:26,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 15:23:26,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 15:23:26,662 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 15:23:26,662 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 15:23:26,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-11-23 15:23:27,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 15:23:28,090 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 15:23:28,091 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-11-23 15:23:28,132 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95507ab66/273446f9afae486bbb6403b167da6c22/FLAGec062a9a2 [2023-11-23 15:23:28,145 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95507ab66/273446f9afae486bbb6403b167da6c22 [2023-11-23 15:23:28,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 15:23:28,149 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 15:23:28,152 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 15:23:28,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 15:23:28,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 15:23:28,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:23:28" (1/1) ... [2023-11-23 15:23:28,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5006ae89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:28, skipping insertion in model container [2023-11-23 15:23:28,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:23:28" (1/1) ... [2023-11-23 15:23:28,242 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 15:23:28,536 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i[5469,5482] [2023-11-23 15:23:31,700 WARN L1590 CHandler]: Possible shadowing of function iminor [2023-11-23 15:23:31,700 WARN L1590 CHandler]: Possible shadowing of function iminor [2023-11-23 15:23:31,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 15:23:31,744 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 15:23:31,758 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i[5469,5482] [2023-11-23 15:23:31,832 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] [2023-11-23 15:23:31,834 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] [2023-11-23 15:23:31,834 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] [2023-11-23 15:23:31,834 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] [2023-11-23 15:23:31,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-23 15:23:31,959 WARN L1590 CHandler]: Possible shadowing of function iminor [2023-11-23 15:23:31,959 WARN L1590 CHandler]: Possible shadowing of function iminor [2023-11-23 15:23:31,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 15:23:32,314 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 15:23:32,314 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 15:23:32,315 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 15:23:32,315 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 15:23:32,315 WARN L675 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 15:23:32,315 WARN L675 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 15:23:32,321 INFO L206 MainTranslator]: Completed translation [2023-11-23 15:23:32,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:32 WrapperNode [2023-11-23 15:23:32,322 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 15:23:32,322 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 15:23:32,322 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 15:23:32,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 15:23:32,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:32" (1/1) ... [2023-11-23 15:23:32,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:32" (1/1) ... [2023-11-23 15:23:32,476 INFO L138 Inliner]: procedures = 1393, calls = 1537, calls flagged for inlining = 392, calls inlined = 54, statements flattened = 744 [2023-11-23 15:23:32,477 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 15:23:32,477 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 15:23:32,477 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 15:23:32,477 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 15:23:32,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:32" (1/1) ... [2023-11-23 15:23:32,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:32" (1/1) ... [2023-11-23 15:23:32,493 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:32" (1/1) ... [2023-11-23 15:23:32,541 INFO L175 MemorySlicer]: Split 55 memory accesses to 12 slices as follows [2, 1, 2, 2, 2, 4, 11, 9, 10, 6, 4, 2]. 20 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 1, 0, 2, 0, 0, 4, 4, 8, 0, 4, 0]. The 14 writes are split as follows [0, 0, 1, 0, 1, 1, 2, 0, 1, 6, 0, 2]. [2023-11-23 15:23:32,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:32" (1/1) ... [2023-11-23 15:23:32,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:32" (1/1) ... [2023-11-23 15:23:32,572 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:32" (1/1) ... [2023-11-23 15:23:32,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:32" (1/1) ... [2023-11-23 15:23:32,598 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:32" (1/1) ... [2023-11-23 15:23:32,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:32" (1/1) ... [2023-11-23 15:23:32,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 15:23:32,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 15:23:32,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 15:23:32,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 15:23:32,612 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:32" (1/1) ... [2023-11-23 15:23:32,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 15:23:32,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 15:23:32,693 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) [2023-11-23 15:23:32,698 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 [2023-11-23 15:23:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 15:23:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 15:23:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 15:23:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 15:23:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 15:23:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 15:23:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 15:23:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 15:23:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 15:23:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-23 15:23:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-23 15:23:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-23 15:23:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 15:23:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 15:23:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 15:23:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 15:23:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 15:23:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 15:23:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 15:23:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 15:23:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 15:23:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 15:23:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-23 15:23:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-23 15:23:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-23 15:23:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-23 15:23:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-11-23 15:23:32,738 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-11-23 15:23:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-11-23 15:23:32,738 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-11-23 15:23:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 15:23:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 15:23:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-23 15:23:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-23 15:23:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-23 15:23:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-23 15:23:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-23 15:23:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-23 15:23:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-23 15:23:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-23 15:23:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-23 15:23:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-23 15:23:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-23 15:23:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-23 15:23:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 15:23:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 15:23:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 15:23:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 15:23:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 15:23:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 15:23:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 15:23:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 15:23:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 15:23:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-23 15:23:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-23 15:23:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-23 15:23:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-23 15:23:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 15:23:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 15:23:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 15:23:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 15:23:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 15:23:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 15:23:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 15:23:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 15:23:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 15:23:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-23 15:23:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-23 15:23:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-23 15:23:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 15:23:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 15:23:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 15:23:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 15:23:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 15:23:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 15:23:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 15:23:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 15:23:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 15:23:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 15:23:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 15:23:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-23 15:23:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-23 15:23:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-23 15:23:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-23 15:23:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 15:23:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 15:23:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 15:23:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 15:23:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 15:23:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 15:23:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 15:23:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 15:23:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 15:23:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 15:23:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-23 15:23:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-23 15:23:32,770 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 15:23:33,151 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 15:23:33,152 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 15:23:33,684 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 15:23:34,304 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 15:23:34,305 INFO L309 CfgBuilder]: Removed 25 assume(true) statements. [2023-11-23 15:23:34,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:34 BoogieIcfgContainer [2023-11-23 15:23:34,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 15:23:34,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 15:23:34,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 15:23:34,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 15:23:34,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:23:28" (1/3) ... [2023-11-23 15:23:34,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5412314c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:23:34, skipping insertion in model container [2023-11-23 15:23:34,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:32" (2/3) ... [2023-11-23 15:23:34,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5412314c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:23:34, skipping insertion in model container [2023-11-23 15:23:34,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:34" (3/3) ... [2023-11-23 15:23:34,314 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-11-23 15:23:34,322 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 15:23:34,330 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 15:23:34,330 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-23 15:23:34,330 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 15:23:34,430 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 15:23:34,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 78 transitions, 170 flow [2023-11-23 15:23:34,491 INFO L124 PetriNetUnfolderBase]: 23/76 cut-off events. [2023-11-23 15:23:34,491 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-23 15:23:34,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 76 events. 23/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 155 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 57. Up to 5 conditions per place. [2023-11-23 15:23:34,495 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 78 transitions, 170 flow [2023-11-23 15:23:34,497 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 74 transitions, 157 flow [2023-11-23 15:23:34,503 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 15:23:34,507 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=true, 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;@4705d1a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 15:23:34,508 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-23 15:23:34,517 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 15:23:34,517 INFO L124 PetriNetUnfolderBase]: 6/24 cut-off events. [2023-11-23 15:23:34,517 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 15:23:34,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 15:23:34,518 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:23:34,518 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-23 15:23:34,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:23:34,522 INFO L85 PathProgramCache]: Analyzing trace with hash -890095486, now seen corresponding path program 1 times [2023-11-23 15:23:34,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:23:34,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656001097] [2023-11-23 15:23:34,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:23:34,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:23:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:23:35,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:35,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:23:35,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656001097] [2023-11-23 15:23:35,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656001097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 15:23:35,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 15:23:35,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 15:23:35,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328583811] [2023-11-23 15:23:35,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 15:23:35,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 15:23:35,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:23:35,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 15:23:35,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 15:23:35,064 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 78 [2023-11-23 15:23:35,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 74 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:35,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 15:23:35,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 78 [2023-11-23 15:23:35,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 15:23:35,378 INFO L124 PetriNetUnfolderBase]: 241/463 cut-off events. [2023-11-23 15:23:35,378 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-11-23 15:23:35,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950 conditions, 463 events. 241/463 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1611 event pairs, 231 based on Foata normal form. 1/399 useless extension candidates. Maximal degree in co-relation 760. Up to 452 conditions per place. [2023-11-23 15:23:35,382 INFO L140 encePairwiseOnDemand]: 61/78 looper letters, 50 selfloop transitions, 4 changer transitions 0/61 dead transitions. [2023-11-23 15:23:35,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 61 transitions, 239 flow [2023-11-23 15:23:35,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 15:23:35,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-23 15:23:35,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2023-11-23 15:23:35,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.28717948717948716 [2023-11-23 15:23:35,392 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 112 transitions. [2023-11-23 15:23:35,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 112 transitions. [2023-11-23 15:23:35,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 15:23:35,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 112 transitions. [2023-11-23 15:23:35,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 22.4) internal successors, (112), 5 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) [2023-11-23 15:23:35,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:35,399 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:35,400 INFO L175 Difference]: Start difference. First operand has 58 places, 74 transitions, 157 flow. Second operand 5 states and 112 transitions. [2023-11-23 15:23:35,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 61 transitions, 239 flow [2023-11-23 15:23:35,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 61 transitions, 234 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-23 15:23:35,405 INFO L231 Difference]: Finished difference. Result has 59 places, 61 transitions, 134 flow [2023-11-23 15:23:35,406 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=134, PETRI_PLACES=59, PETRI_TRANSITIONS=61} [2023-11-23 15:23:35,408 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 1 predicate places. [2023-11-23 15:23:35,409 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 61 transitions, 134 flow [2023-11-23 15:23:35,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:35,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 15:23:35,409 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:23:35,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 15:23:35,410 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-23 15:23:35,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:23:35,410 INFO L85 PathProgramCache]: Analyzing trace with hash -847919009, now seen corresponding path program 1 times [2023-11-23 15:23:35,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:23:35,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367214594] [2023-11-23 15:23:35,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:23:35,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:23:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:23:35,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:35,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:23:35,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367214594] [2023-11-23 15:23:35,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367214594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 15:23:35,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 15:23:35,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 15:23:35,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054553172] [2023-11-23 15:23:35,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 15:23:35,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 15:23:35,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:23:35,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 15:23:35,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 15:23:35,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 78 [2023-11-23 15:23:35,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 61 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:35,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 15:23:35,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 78 [2023-11-23 15:23:35,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 15:23:35,980 INFO L124 PetriNetUnfolderBase]: 241/461 cut-off events. [2023-11-23 15:23:35,980 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-23 15:23:35,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 938 conditions, 461 events. 241/461 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1587 event pairs, 231 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 896. Up to 456 conditions per place. [2023-11-23 15:23:35,983 INFO L140 encePairwiseOnDemand]: 75/78 looper letters, 53 selfloop transitions, 2 changer transitions 0/59 dead transitions. [2023-11-23 15:23:35,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 59 transitions, 240 flow [2023-11-23 15:23:35,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 15:23:35,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 15:23:35,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2023-11-23 15:23:35,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32905982905982906 [2023-11-23 15:23:35,985 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 77 transitions. [2023-11-23 15:23:35,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 77 transitions. [2023-11-23 15:23:35,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 15:23:35,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 77 transitions. [2023-11-23 15:23:35,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:35,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:35,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:35,987 INFO L175 Difference]: Start difference. First operand has 59 places, 61 transitions, 134 flow. Second operand 3 states and 77 transitions. [2023-11-23 15:23:35,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 59 transitions, 240 flow [2023-11-23 15:23:35,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 59 transitions, 232 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 15:23:35,989 INFO L231 Difference]: Finished difference. Result has 55 places, 59 transitions, 126 flow [2023-11-23 15:23:35,989 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=55, PETRI_TRANSITIONS=59} [2023-11-23 15:23:35,990 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -3 predicate places. [2023-11-23 15:23:35,990 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 59 transitions, 126 flow [2023-11-23 15:23:35,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:35,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 15:23:35,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:23:35,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 15:23:35,991 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-23 15:23:35,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:23:35,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1484631405, now seen corresponding path program 1 times [2023-11-23 15:23:35,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:23:35,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136856145] [2023-11-23 15:23:35,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:23:35,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:23:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:23:36,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:36,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:23:36,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136856145] [2023-11-23 15:23:36,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136856145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 15:23:36,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 15:23:36,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 15:23:36,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092269394] [2023-11-23 15:23:36,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 15:23:36,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 15:23:36,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:23:36,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 15:23:36,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 15:23:36,208 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 78 [2023-11-23 15:23:36,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 59 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:36,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 15:23:36,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 78 [2023-11-23 15:23:36,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 15:23:36,377 INFO L124 PetriNetUnfolderBase]: 241/462 cut-off events. [2023-11-23 15:23:36,377 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-23 15:23:36,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 937 conditions, 462 events. 241/462 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1587 event pairs, 231 based on Foata normal form. 0/399 useless extension candidates. Maximal degree in co-relation 888. Up to 457 conditions per place. [2023-11-23 15:23:36,379 INFO L140 encePairwiseOnDemand]: 75/78 looper letters, 53 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2023-11-23 15:23:36,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 60 transitions, 238 flow [2023-11-23 15:23:36,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 15:23:36,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 15:23:36,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2023-11-23 15:23:36,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3547008547008547 [2023-11-23 15:23:36,381 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 83 transitions. [2023-11-23 15:23:36,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 83 transitions. [2023-11-23 15:23:36,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 15:23:36,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 83 transitions. [2023-11-23 15:23:36,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:36,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:36,383 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:36,383 INFO L175 Difference]: Start difference. First operand has 55 places, 59 transitions, 126 flow. Second operand 3 states and 83 transitions. [2023-11-23 15:23:36,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 60 transitions, 238 flow [2023-11-23 15:23:36,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 60 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 15:23:36,384 INFO L231 Difference]: Finished difference. Result has 56 places, 60 transitions, 134 flow [2023-11-23 15:23:36,384 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=56, PETRI_TRANSITIONS=60} [2023-11-23 15:23:36,385 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -2 predicate places. [2023-11-23 15:23:36,385 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 60 transitions, 134 flow [2023-11-23 15:23:36,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:36,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 15:23:36,386 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:23:36,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 15:23:36,386 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-23 15:23:36,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:23:36,386 INFO L85 PathProgramCache]: Analyzing trace with hash -126442766, now seen corresponding path program 1 times [2023-11-23 15:23:36,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:23:36,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436927654] [2023-11-23 15:23:36,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:23:36,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:23:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:23:36,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:36,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:23:36,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436927654] [2023-11-23 15:23:36,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436927654] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 15:23:36,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933632655] [2023-11-23 15:23:36,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:23:36,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:23:36,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 15:23:36,643 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) [2023-11-23 15:23:36,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 15:23:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:23:37,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 15:23:37,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 15:23:37,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:37,290 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 15:23:37,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:37,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933632655] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 15:23:37,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 15:23:37,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-11-23 15:23:37,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189231957] [2023-11-23 15:23:37,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 15:23:37,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 15:23:37,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:23:37,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 15:23:37,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-11-23 15:23:37,308 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 78 [2023-11-23 15:23:37,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 60 transitions, 134 flow. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:37,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 15:23:37,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 78 [2023-11-23 15:23:37,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 15:23:37,654 INFO L124 PetriNetUnfolderBase]: 241/467 cut-off events. [2023-11-23 15:23:37,655 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-23 15:23:37,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 467 events. 241/467 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1610 event pairs, 231 based on Foata normal form. 0/403 useless extension candidates. Maximal degree in co-relation 943. Up to 457 conditions per place. [2023-11-23 15:23:37,657 INFO L140 encePairwiseOnDemand]: 72/78 looper letters, 52 selfloop transitions, 8 changer transitions 0/65 dead transitions. [2023-11-23 15:23:37,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 65 transitions, 270 flow [2023-11-23 15:23:37,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 15:23:37,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 15:23:37,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 119 transitions. [2023-11-23 15:23:37,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25427350427350426 [2023-11-23 15:23:37,658 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 119 transitions. [2023-11-23 15:23:37,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 119 transitions. [2023-11-23 15:23:37,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 15:23:37,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 119 transitions. [2023-11-23 15:23:37,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 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) [2023-11-23 15:23:37,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:37,660 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:37,660 INFO L175 Difference]: Start difference. First operand has 56 places, 60 transitions, 134 flow. Second operand 6 states and 119 transitions. [2023-11-23 15:23:37,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 65 transitions, 270 flow [2023-11-23 15:23:37,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 65 transitions, 266 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-23 15:23:37,662 INFO L231 Difference]: Finished difference. Result has 63 places, 65 transitions, 186 flow [2023-11-23 15:23:37,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=186, PETRI_PLACES=63, PETRI_TRANSITIONS=65} [2023-11-23 15:23:37,663 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 5 predicate places. [2023-11-23 15:23:37,663 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 65 transitions, 186 flow [2023-11-23 15:23:37,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:37,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 15:23:37,663 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:23:37,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 15:23:37,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:23:37,877 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-23 15:23:37,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:23:37,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1782772307, now seen corresponding path program 2 times [2023-11-23 15:23:37,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:23:37,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359655280] [2023-11-23 15:23:37,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:23:37,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:23:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:23:38,200 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:38,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:23:38,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359655280] [2023-11-23 15:23:38,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359655280] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 15:23:38,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090323514] [2023-11-23 15:23:38,201 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 15:23:38,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:23:38,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 15:23:38,202 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) [2023-11-23 15:23:38,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 15:23:38,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 15:23:38,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 15:23:38,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 15:23:38,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 15:23:38,803 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 15:23:38,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 15:23:38,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090323514] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 15:23:38,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 15:23:38,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2023-11-23 15:23:38,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833650612] [2023-11-23 15:23:38,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 15:23:38,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 15:23:38,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:23:38,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 15:23:38,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-23 15:23:38,805 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 78 [2023-11-23 15:23:38,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 65 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:38,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 15:23:38,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 78 [2023-11-23 15:23:38,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 15:23:39,077 INFO L124 PetriNetUnfolderBase]: 232/454 cut-off events. [2023-11-23 15:23:39,077 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-23 15:23:39,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 947 conditions, 454 events. 232/454 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1680 event pairs, 132 based on Foata normal form. 0/411 useless extension candidates. Maximal degree in co-relation 908. Up to 320 conditions per place. [2023-11-23 15:23:39,079 INFO L140 encePairwiseOnDemand]: 74/78 looper letters, 72 selfloop transitions, 3 changer transitions 2/82 dead transitions. [2023-11-23 15:23:39,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 82 transitions, 376 flow [2023-11-23 15:23:39,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 15:23:39,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 15:23:39,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2023-11-23 15:23:39,080 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4230769230769231 [2023-11-23 15:23:39,080 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 99 transitions. [2023-11-23 15:23:39,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 99 transitions. [2023-11-23 15:23:39,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 15:23:39,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 99 transitions. [2023-11-23 15:23:39,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:39,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:39,082 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:39,082 INFO L175 Difference]: Start difference. First operand has 63 places, 65 transitions, 186 flow. Second operand 3 states and 99 transitions. [2023-11-23 15:23:39,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 82 transitions, 376 flow [2023-11-23 15:23:39,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 82 transitions, 366 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-11-23 15:23:39,084 INFO L231 Difference]: Finished difference. Result has 65 places, 67 transitions, 195 flow [2023-11-23 15:23:39,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=65, PETRI_TRANSITIONS=67} [2023-11-23 15:23:39,085 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 7 predicate places. [2023-11-23 15:23:39,085 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 67 transitions, 195 flow [2023-11-23 15:23:39,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:39,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 15:23:39,086 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:23:39,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 15:23:39,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:23:39,301 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-23 15:23:39,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:23:39,302 INFO L85 PathProgramCache]: Analyzing trace with hash -450733315, now seen corresponding path program 1 times [2023-11-23 15:23:39,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:23:39,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504567010] [2023-11-23 15:23:39,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:23:39,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:23:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:23:39,685 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:39,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:23:39,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504567010] [2023-11-23 15:23:39,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504567010] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 15:23:39,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738861751] [2023-11-23 15:23:39,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:23:39,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:23:39,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 15:23:39,688 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) [2023-11-23 15:23:39,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 15:23:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:23:40,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 15:23:40,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 15:23:40,400 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:40,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 15:23:40,464 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:40,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738861751] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 15:23:40,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 15:23:40,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2023-11-23 15:23:40,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612291706] [2023-11-23 15:23:40,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 15:23:40,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 15:23:40,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:23:40,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 15:23:40,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-11-23 15:23:40,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 78 [2023-11-23 15:23:40,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 67 transitions, 195 flow. Second operand has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:40,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 15:23:40,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 78 [2023-11-23 15:23:40,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 15:23:41,722 INFO L124 PetriNetUnfolderBase]: 232/463 cut-off events. [2023-11-23 15:23:41,723 INFO L125 PetriNetUnfolderBase]: For 144/144 co-relation queries the response was YES. [2023-11-23 15:23:41,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1093 conditions, 463 events. 232/463 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1607 event pairs, 214 based on Foata normal form. 9/437 useless extension candidates. Maximal degree in co-relation 1033. Up to 444 conditions per place. [2023-11-23 15:23:41,725 INFO L140 encePairwiseOnDemand]: 72/78 looper letters, 54 selfloop transitions, 17 changer transitions 0/76 dead transitions. [2023-11-23 15:23:41,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 76 transitions, 385 flow [2023-11-23 15:23:41,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 15:23:41,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-23 15:23:41,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 186 transitions. [2023-11-23 15:23:41,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1987179487179487 [2023-11-23 15:23:41,741 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 186 transitions. [2023-11-23 15:23:41,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 186 transitions. [2023-11-23 15:23:41,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 15:23:41,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 186 transitions. [2023-11-23 15:23:41,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 15.5) internal successors, (186), 12 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:41,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:41,743 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:41,743 INFO L175 Difference]: Start difference. First operand has 65 places, 67 transitions, 195 flow. Second operand 12 states and 186 transitions. [2023-11-23 15:23:41,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 76 transitions, 385 flow [2023-11-23 15:23:41,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 76 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 15:23:41,746 INFO L231 Difference]: Finished difference. Result has 81 places, 76 transitions, 318 flow [2023-11-23 15:23:41,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=318, PETRI_PLACES=81, PETRI_TRANSITIONS=76} [2023-11-23 15:23:41,746 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 23 predicate places. [2023-11-23 15:23:41,747 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 76 transitions, 318 flow [2023-11-23 15:23:41,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.6875) internal successors, (171), 16 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:41,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 15:23:41,747 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:23:41,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 15:23:41,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:23:41,961 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-23 15:23:41,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:23:41,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1496374941, now seen corresponding path program 2 times [2023-11-23 15:23:41,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:23:41,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576890841] [2023-11-23 15:23:41,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:23:41,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:23:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:23:42,517 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:42,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:23:42,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576890841] [2023-11-23 15:23:42,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576890841] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 15:23:42,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825948202] [2023-11-23 15:23:42,518 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 15:23:42,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:23:42,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 15:23:42,519 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) [2023-11-23 15:23:42,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 15:23:43,064 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 15:23:43,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 15:23:43,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 15:23:43,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 15:23:43,086 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 15:23:43,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 15:23:43,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825948202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 15:23:43,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 15:23:43,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 14 [2023-11-23 15:23:43,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480910232] [2023-11-23 15:23:43,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 15:23:43,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 15:23:43,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:23:43,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 15:23:43,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-23 15:23:43,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 78 [2023-11-23 15:23:43,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 76 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:43,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 15:23:43,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 78 [2023-11-23 15:23:43,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 15:23:43,395 INFO L124 PetriNetUnfolderBase]: 217/436 cut-off events. [2023-11-23 15:23:43,395 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2023-11-23 15:23:43,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 436 events. 217/436 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1502 event pairs, 169 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 958. Up to 378 conditions per place. [2023-11-23 15:23:43,397 INFO L140 encePairwiseOnDemand]: 75/78 looper letters, 75 selfloop transitions, 2 changer transitions 0/82 dead transitions. [2023-11-23 15:23:43,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 82 transitions, 489 flow [2023-11-23 15:23:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 15:23:43,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 15:23:43,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2023-11-23 15:23:43,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37606837606837606 [2023-11-23 15:23:43,398 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 88 transitions. [2023-11-23 15:23:43,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 88 transitions. [2023-11-23 15:23:43,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 15:23:43,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 88 transitions. [2023-11-23 15:23:43,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:43,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:43,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:43,399 INFO L175 Difference]: Start difference. First operand has 81 places, 76 transitions, 318 flow. Second operand 3 states and 88 transitions. [2023-11-23 15:23:43,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 82 transitions, 489 flow [2023-11-23 15:23:43,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 82 transitions, 449 flow, removed 18 selfloop flow, removed 2 redundant places. [2023-11-23 15:23:43,407 INFO L231 Difference]: Finished difference. Result has 80 places, 75 transitions, 280 flow [2023-11-23 15:23:43,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=80, PETRI_TRANSITIONS=75} [2023-11-23 15:23:43,407 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 22 predicate places. [2023-11-23 15:23:43,407 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 280 flow [2023-11-23 15:23:43,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:43,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 15:23:43,408 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:23:43,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 15:23:43,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:23:43,621 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-23 15:23:43,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:23:43,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1539525923, now seen corresponding path program 1 times [2023-11-23 15:23:43,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:23:43,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710561487] [2023-11-23 15:23:43,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:23:43,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:23:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:23:44,189 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:44,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:23:44,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710561487] [2023-11-23 15:23:44,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710561487] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 15:23:44,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514090888] [2023-11-23 15:23:44,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:23:44,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:23:44,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 15:23:44,191 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) [2023-11-23 15:23:44,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 15:23:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:23:44,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 15:23:44,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 15:23:44,989 INFO L349 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2023-11-23 15:23:44,990 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 1 case distinctions, treesize of input 23 treesize of output 26 [2023-11-23 15:23:45,023 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 15:23:45,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 15:23:45,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514090888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 15:23:45,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 15:23:45,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 15 [2023-11-23 15:23:45,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462560820] [2023-11-23 15:23:45,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 15:23:45,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 15:23:45,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:23:45,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 15:23:45,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-11-23 15:23:45,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 78 [2023-11-23 15:23:45,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 75 transitions, 280 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:45,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 15:23:45,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 78 [2023-11-23 15:23:45,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 15:23:45,499 INFO L124 PetriNetUnfolderBase]: 394/758 cut-off events. [2023-11-23 15:23:45,499 INFO L125 PetriNetUnfolderBase]: For 172/172 co-relation queries the response was YES. [2023-11-23 15:23:45,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1796 conditions, 758 events. 394/758 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2505 event pairs, 253 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 1721. Up to 408 conditions per place. [2023-11-23 15:23:45,502 INFO L140 encePairwiseOnDemand]: 70/78 looper letters, 87 selfloop transitions, 7 changer transitions 16/115 dead transitions. [2023-11-23 15:23:45,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 115 transitions, 610 flow [2023-11-23 15:23:45,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 15:23:45,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-23 15:23:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 137 transitions. [2023-11-23 15:23:45,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35128205128205126 [2023-11-23 15:23:45,503 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 137 transitions. [2023-11-23 15:23:45,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 137 transitions. [2023-11-23 15:23:45,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 15:23:45,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 137 transitions. [2023-11-23 15:23:45,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 27.4) internal successors, (137), 5 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) [2023-11-23 15:23:45,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:45,505 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:45,505 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 280 flow. Second operand 5 states and 137 transitions. [2023-11-23 15:23:45,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 115 transitions, 610 flow [2023-11-23 15:23:45,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 115 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 15:23:45,508 INFO L231 Difference]: Finished difference. Result has 85 places, 81 transitions, 331 flow [2023-11-23 15:23:45,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=331, PETRI_PLACES=85, PETRI_TRANSITIONS=81} [2023-11-23 15:23:45,508 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 27 predicate places. [2023-11-23 15:23:45,508 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 81 transitions, 331 flow [2023-11-23 15:23:45,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:45,509 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 15:23:45,509 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:23:45,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 15:23:45,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:23:45,727 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-23 15:23:45,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:23:45,727 INFO L85 PathProgramCache]: Analyzing trace with hash -542872703, now seen corresponding path program 1 times [2023-11-23 15:23:45,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:23:45,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025786617] [2023-11-23 15:23:45,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:23:45,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:23:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:23:46,274 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:46,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:23:46,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025786617] [2023-11-23 15:23:46,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025786617] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 15:23:46,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274399989] [2023-11-23 15:23:46,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:23:46,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:23:46,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 15:23:46,289 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) [2023-11-23 15:23:46,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 15:23:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:23:48,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-23 15:23:48,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 15:23:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:48,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 15:23:48,527 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:48,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274399989] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 15:23:48,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 15:23:48,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2023-11-23 15:23:48,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593571509] [2023-11-23 15:23:48,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 15:23:48,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-23 15:23:48,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:23:48,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-23 15:23:48,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=877, Unknown=0, NotChecked=0, Total=1122 [2023-11-23 15:23:48,530 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 78 [2023-11-23 15:23:48,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 81 transitions, 331 flow. Second operand has 34 states, 34 states have (on average 10.558823529411764) internal successors, (359), 34 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:48,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 15:23:48,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 78 [2023-11-23 15:23:48,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 15:23:53,994 INFO L124 PetriNetUnfolderBase]: 362/728 cut-off events. [2023-11-23 15:23:53,994 INFO L125 PetriNetUnfolderBase]: For 710/710 co-relation queries the response was YES. [2023-11-23 15:23:53,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1893 conditions, 728 events. 362/728 cut-off events. For 710/710 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2303 event pairs, 334 based on Foata normal form. 18/742 useless extension candidates. Maximal degree in co-relation 1766. Up to 691 conditions per place. [2023-11-23 15:23:53,997 INFO L140 encePairwiseOnDemand]: 72/78 looper letters, 59 selfloop transitions, 35 changer transitions 0/99 dead transitions. [2023-11-23 15:23:53,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 99 transitions, 615 flow [2023-11-23 15:23:53,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 15:23:53,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-23 15:23:53,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 320 transitions. [2023-11-23 15:23:53,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.17094017094017094 [2023-11-23 15:23:53,999 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 320 transitions. [2023-11-23 15:23:54,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 320 transitions. [2023-11-23 15:23:54,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 15:23:54,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 320 transitions. [2023-11-23 15:23:54,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 13.333333333333334) internal successors, (320), 24 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:54,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 78.0) internal successors, (1950), 25 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:54,003 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 78.0) internal successors, (1950), 25 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:54,003 INFO L175 Difference]: Start difference. First operand has 85 places, 81 transitions, 331 flow. Second operand 24 states and 320 transitions. [2023-11-23 15:23:54,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 99 transitions, 615 flow [2023-11-23 15:23:54,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 99 transitions, 612 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 15:23:54,006 INFO L231 Difference]: Finished difference. Result has 119 places, 99 transitions, 580 flow [2023-11-23 15:23:54,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=580, PETRI_PLACES=119, PETRI_TRANSITIONS=99} [2023-11-23 15:23:54,007 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 61 predicate places. [2023-11-23 15:23:54,007 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 99 transitions, 580 flow [2023-11-23 15:23:54,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.558823529411764) internal successors, (359), 34 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:54,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 15:23:54,007 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:23:54,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 15:23:54,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:23:54,218 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-23 15:23:54,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:23:54,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1711502655, now seen corresponding path program 2 times [2023-11-23 15:23:54,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:23:54,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927678899] [2023-11-23 15:23:54,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:23:54,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:23:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:23:55,452 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:55,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:23:55,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927678899] [2023-11-23 15:23:55,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927678899] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 15:23:55,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281338257] [2023-11-23 15:23:55,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 15:23:55,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:23:55,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 15:23:55,454 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) [2023-11-23 15:23:55,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 15:23:56,625 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 15:23:56,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 15:23:56,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-23 15:23:56,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 15:23:57,325 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:57,325 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 15:23:58,356 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:23:58,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281338257] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 15:23:58,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 15:23:58,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 69 [2023-11-23 15:23:58,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255930673] [2023-11-23 15:23:58,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 15:23:58,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2023-11-23 15:23:58,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:23:58,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2023-11-23 15:23:58,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1222, Invalid=3608, Unknown=0, NotChecked=0, Total=4830 [2023-11-23 15:23:58,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 78 [2023-11-23 15:23:58,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 99 transitions, 580 flow. Second operand has 70 states, 70 states have (on average 10.271428571428572) internal successors, (719), 70 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:23:58,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 15:23:58,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 78 [2023-11-23 15:23:58,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 15:25:49,800 INFO L124 PetriNetUnfolderBase]: 362/757 cut-off events. [2023-11-23 15:25:49,800 INFO L125 PetriNetUnfolderBase]: For 5741/5741 co-relation queries the response was YES. [2023-11-23 15:25:49,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2112 conditions, 757 events. 362/757 cut-off events. For 5741/5741 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2290 event pairs, 334 based on Foata normal form. 29/782 useless extension candidates. Maximal degree in co-relation 1805. Up to 691 conditions per place. [2023-11-23 15:25:49,804 INFO L140 encePairwiseOnDemand]: 72/78 looper letters, 59 selfloop transitions, 64 changer transitions 0/128 dead transitions. [2023-11-23 15:25:49,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 128 transitions, 1048 flow [2023-11-23 15:25:49,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-23 15:25:49,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-11-23 15:25:49,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 576 transitions. [2023-11-23 15:25:49,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.15384615384615385 [2023-11-23 15:25:49,807 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 576 transitions. [2023-11-23 15:25:49,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 576 transitions. [2023-11-23 15:25:49,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 15:25:49,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 576 transitions. [2023-11-23 15:25:49,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 12.0) internal successors, (576), 48 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:25:49,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 78.0) internal successors, (3822), 49 states have internal predecessors, (3822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:25:49,816 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 78.0) internal successors, (3822), 49 states have internal predecessors, (3822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:25:49,816 INFO L175 Difference]: Start difference. First operand has 119 places, 99 transitions, 580 flow. Second operand 48 states and 576 transitions. [2023-11-23 15:25:49,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 128 transitions, 1048 flow [2023-11-23 15:25:49,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 128 transitions, 906 flow, removed 64 selfloop flow, removed 6 redundant places. [2023-11-23 15:25:49,823 INFO L231 Difference]: Finished difference. Result has 184 places, 128 transitions, 930 flow [2023-11-23 15:25:49,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=930, PETRI_PLACES=184, PETRI_TRANSITIONS=128} [2023-11-23 15:25:49,825 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 126 predicate places. [2023-11-23 15:25:49,825 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 128 transitions, 930 flow [2023-11-23 15:25:49,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 10.271428571428572) internal successors, (719), 70 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:25:49,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 15:25:49,826 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:25:49,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-23 15:25:50,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:25:50,040 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-23 15:25:50,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:25:50,040 INFO L85 PathProgramCache]: Analyzing trace with hash 647899457, now seen corresponding path program 3 times [2023-11-23 15:25:50,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:25:50,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73665352] [2023-11-23 15:25:50,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:25:50,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:25:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:25:53,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 15:25:53,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:25:53,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73665352] [2023-11-23 15:25:53,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73665352] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 15:25:53,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668794963] [2023-11-23 15:25:53,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 15:25:53,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:25:53,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 15:25:53,590 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) [2023-11-23 15:25:53,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process Killed by 15