./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_configure.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fcc0f5ef9d6c49d1991b076f6c361ed83f7f84302617131ead28c4e655562844 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-c4f9136-m [2023-11-23 16:10:33,286 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 16:10:33,353 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 16:10:33,357 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 16:10:33,358 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 16:10:33,381 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 16:10:33,382 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 16:10:33,382 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 16:10:33,383 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 16:10:33,386 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 16:10:33,386 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 16:10:33,386 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 16:10:33,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 16:10:33,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 16:10:33,388 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 16:10:33,389 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 16:10:33,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 16:10:33,389 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 16:10:33,389 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 16:10:33,389 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 16:10:33,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 16:10:33,391 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 16:10:33,391 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 16:10:33,391 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 16:10:33,391 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 16:10:33,392 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 16:10:33,392 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 16:10:33,392 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 16:10:33,393 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 16:10:33,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 16:10:33,394 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 16:10:33,394 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 16:10:33,394 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 16:10:33,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 16:10:33,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 16:10:33,395 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 16:10:33,395 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 16:10:33,395 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 16:10:33,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 16:10:33,395 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 16:10:33,396 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 16:10:33,396 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 16:10:33,396 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 16:10:33,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 16:10:33,397 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc0f5ef9d6c49d1991b076f6c361ed83f7f84302617131ead28c4e655562844 [2023-11-23 16:10:33,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 16:10:33,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 16:10:33,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 16:10:33,621 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 16:10:33,621 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 16:10:33,622 INFO L431 ainManager$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_configure.i [2023-11-23 16:10:34,720 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 16:10:35,174 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 16:10:35,180 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i [2023-11-23 16:10:35,220 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aff3248ae/bf770520f8684930b53803e538eb18e4/FLAGa0514601a [2023-11-23 16:10:35,233 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aff3248ae/bf770520f8684930b53803e538eb18e4 [2023-11-23 16:10:35,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 16:10:35,237 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 16:10:35,240 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 16:10:35,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 16:10:35,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 16:10:35,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:10:35" (1/1) ... [2023-11-23 16:10:35,245 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b88eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:35, skipping insertion in model container [2023-11-23 16:10:35,245 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:10:35" (1/1) ... [2023-11-23 16:10:35,331 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 16:10:38,326 WARN L1590 CHandler]: Possible shadowing of function iminor [2023-11-23 16:10:38,328 WARN L1590 CHandler]: Possible shadowing of function iminor [2023-11-23 16:10:38,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 16:10:38,393 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 16:10:38,526 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 16:10:38,528 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 16:10:38,528 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 16:10:38,529 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 16:10:38,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-23 16:10:38,626 WARN L1590 CHandler]: Possible shadowing of function iminor [2023-11-23 16:10:38,626 WARN L1590 CHandler]: Possible shadowing of function iminor [2023-11-23 16:10:38,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 16:10:39,017 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 16:10:39,017 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 16:10:39,018 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 16:10:39,018 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 16:10:39,018 WARN L675 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 16:10:39,018 WARN L675 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 16:10:39,024 INFO L206 MainTranslator]: Completed translation [2023-11-23 16:10:39,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:39 WrapperNode [2023-11-23 16:10:39,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 16:10:39,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 16:10:39,025 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 16:10:39,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 16:10:39,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:39" (1/1) ... [2023-11-23 16:10:39,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:39" (1/1) ... [2023-11-23 16:10:39,209 INFO L138 Inliner]: procedures = 1393, calls = 1530, calls flagged for inlining = 393, calls inlined = 78, statements flattened = 887 [2023-11-23 16:10:39,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 16:10:39,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 16:10:39,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 16:10:39,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 16:10:39,220 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:39" (1/1) ... [2023-11-23 16:10:39,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:39" (1/1) ... [2023-11-23 16:10:39,231 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:39" (1/1) ... [2023-11-23 16:10:39,283 INFO L175 MemorySlicer]: Split 56 memory accesses to 12 slices as follows [2, 4, 2, 1, 5, 9, 9, 10, 6, 4, 2, 2]. 18 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 0, 0, 1, 2, 4, 4, 8, 0, 4, 0, 0]. The 16 writes are split as follows [0, 1, 1, 0, 2, 2, 0, 1, 6, 0, 1, 2]. [2023-11-23 16:10:39,283 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:39" (1/1) ... [2023-11-23 16:10:39,284 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:39" (1/1) ... [2023-11-23 16:10:39,319 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:39" (1/1) ... [2023-11-23 16:10:39,329 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:39" (1/1) ... [2023-11-23 16:10:39,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:39" (1/1) ... [2023-11-23 16:10:39,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:39" (1/1) ... [2023-11-23 16:10:39,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 16:10:39,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 16:10:39,381 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 16:10:39,381 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 16:10:39,382 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:39" (1/1) ... [2023-11-23 16:10:39,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 16:10:39,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:10:39,449 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 16:10:39,485 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 16:10:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 16:10:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 16:10:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 16:10:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 16:10:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 16:10:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 16:10:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 16:10:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 16:10:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 16:10:39,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-23 16:10:39,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-23 16:10:39,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-23 16:10:39,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 16:10:39,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 16:10:39,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 16:10:39,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 16:10:39,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 16:10:39,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 16:10:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 16:10:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 16:10:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 16:10:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 16:10:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-23 16:10:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-23 16:10:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-23 16:10:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-23 16:10:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-11-23 16:10:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-11-23 16:10:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 16:10:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 16:10:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-23 16:10:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-23 16:10:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-23 16:10:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-23 16:10:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-23 16:10:39,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-23 16:10:39,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-23 16:10:39,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-23 16:10:39,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-23 16:10:39,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-23 16:10:39,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-23 16:10:39,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-23 16:10:39,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 16:10:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 16:10:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 16:10:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 16:10:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 16:10:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 16:10:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 16:10:39,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 16:10:39,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 16:10:39,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-23 16:10:39,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-23 16:10:39,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-23 16:10:39,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-23 16:10:39,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 16:10:39,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 16:10:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 16:10:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 16:10:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 16:10:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 16:10:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 16:10:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 16:10:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 16:10:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-23 16:10:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-23 16:10:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-23 16:10:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2023-11-23 16:10:39,526 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2023-11-23 16:10:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 16:10:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 16:10:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 16:10:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 16:10:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 16:10:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 16:10:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 16:10:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 16:10:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 16:10:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 16:10:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 16:10:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-23 16:10:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-23 16:10:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-23 16:10:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-23 16:10:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 16:10:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 16:10:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 16:10:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 16:10:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 16:10:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 16:10:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 16:10:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 16:10:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 16:10:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 16:10:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-23 16:10:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-23 16:10:39,543 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 16:10:39,891 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 16:10:39,893 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 16:10:40,595 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 16:10:41,136 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 16:10:41,136 INFO L309 CfgBuilder]: Removed 25 assume(true) statements. [2023-11-23 16:10:41,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:10:41 BoogieIcfgContainer [2023-11-23 16:10:41,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 16:10:41,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 16:10:41,138 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 16:10:41,141 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 16:10:41,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:10:35" (1/3) ... [2023-11-23 16:10:41,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1940a170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:10:41, skipping insertion in model container [2023-11-23 16:10:41,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:39" (2/3) ... [2023-11-23 16:10:41,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1940a170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:10:41, skipping insertion in model container [2023-11-23 16:10:41,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:10:41" (3/3) ... [2023-11-23 16:10:41,143 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i [2023-11-23 16:10:41,149 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 16:10:41,156 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 16:10:41,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2023-11-23 16:10:41,156 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 16:10:41,213 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 16:10:41,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 148 transitions, 310 flow [2023-11-23 16:10:41,287 INFO L124 PetriNetUnfolderBase]: 24/146 cut-off events. [2023-11-23 16:10:41,287 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-23 16:10:41,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 146 events. 24/146 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 398 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 121. Up to 5 conditions per place. [2023-11-23 16:10:41,291 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 148 transitions, 310 flow [2023-11-23 16:10:41,294 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 144 transitions, 297 flow [2023-11-23 16:10:41,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 16:10:41,378 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;@36de3985, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 16:10:41,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-11-23 16:10:41,401 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 16:10:41,402 INFO L124 PetriNetUnfolderBase]: 3/14 cut-off events. [2023-11-23 16:10:41,402 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 16:10:41,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:41,403 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 16:10:41,403 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-23 16:10:41,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:41,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1644175422, now seen corresponding path program 1 times [2023-11-23 16:10:41,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:41,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507819688] [2023-11-23 16:10:41,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:41,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:41,815 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 16:10:41,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:41,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507819688] [2023-11-23 16:10:41,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507819688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:10:41,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:10:41,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 16:10:41,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456732997] [2023-11-23 16:10:41,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:10:41,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 16:10:41,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:41,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 16:10:41,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 16:10:41,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 148 [2023-11-23 16:10:41,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 144 transitions, 297 flow. Second operand has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 16:10:41,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:41,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 148 [2023-11-23 16:10:41,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:42,225 INFO L124 PetriNetUnfolderBase]: 340/827 cut-off events. [2023-11-23 16:10:42,226 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-23 16:10:42,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1499 conditions, 827 events. 340/827 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4447 event pairs, 327 based on Foata normal form. 117/883 useless extension candidates. Maximal degree in co-relation 1290. Up to 635 conditions per place. [2023-11-23 16:10:42,234 INFO L140 encePairwiseOnDemand]: 113/148 looper letters, 67 selfloop transitions, 0 changer transitions 3/109 dead transitions. [2023-11-23 16:10:42,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 109 transitions, 367 flow [2023-11-23 16:10:42,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 16:10:42,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-23 16:10:42,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 187 transitions. [2023-11-23 16:10:42,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6317567567567568 [2023-11-23 16:10:42,245 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 187 transitions. [2023-11-23 16:10:42,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 187 transitions. [2023-11-23 16:10:42,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:42,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 187 transitions. [2023-11-23 16:10:42,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 93.5) internal successors, (187), 2 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:42,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states 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 16:10:42,255 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states 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 16:10:42,257 INFO L175 Difference]: Start difference. First operand has 127 places, 144 transitions, 297 flow. Second operand 2 states and 187 transitions. [2023-11-23 16:10:42,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 109 transitions, 367 flow [2023-11-23 16:10:42,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 109 transitions, 362 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-23 16:10:42,264 INFO L231 Difference]: Finished difference. Result has 101 places, 106 transitions, 216 flow [2023-11-23 16:10:42,265 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=216, PETRI_PLACES=101, PETRI_TRANSITIONS=106} [2023-11-23 16:10:42,269 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -26 predicate places. [2023-11-23 16:10:42,269 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 106 transitions, 216 flow [2023-11-23 16:10:42,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 16:10:42,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:42,270 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:42,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 16:10:42,270 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-23 16:10:42,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:42,271 INFO L85 PathProgramCache]: Analyzing trace with hash 63063374, now seen corresponding path program 1 times [2023-11-23 16:10:42,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:42,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421184748] [2023-11-23 16:10:42,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:42,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:42,472 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 16:10:42,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:42,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421184748] [2023-11-23 16:10:42,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421184748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:10:42,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:10:42,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:10:42,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178828967] [2023-11-23 16:10:42,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:10:42,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:10:42,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:42,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:10:42,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:10:42,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 148 [2023-11-23 16:10:42,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 106 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 16:10:42,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:42,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 148 [2023-11-23 16:10:42,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:42,876 INFO L124 PetriNetUnfolderBase]: 240/655 cut-off events. [2023-11-23 16:10:42,877 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 16:10:42,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 655 events. 240/655 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3532 event pairs, 228 based on Foata normal form. 0/595 useless extension candidates. Maximal degree in co-relation 1140. Up to 458 conditions per place. [2023-11-23 16:10:42,894 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 62 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2023-11-23 16:10:42,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 105 transitions, 346 flow [2023-11-23 16:10:42,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 16:10:42,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-23 16:10:42,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 272 transitions. [2023-11-23 16:10:42,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3675675675675676 [2023-11-23 16:10:42,896 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 272 transitions. [2023-11-23 16:10:42,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 272 transitions. [2023-11-23 16:10:42,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:42,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 272 transitions. [2023-11-23 16:10:42,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 0 states have call successors, (0), 0 states 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 16:10:42,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 0 states have call successors, (0), 0 states 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 16:10:42,899 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 0 states have call successors, (0), 0 states 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 16:10:42,899 INFO L175 Difference]: Start difference. First operand has 101 places, 106 transitions, 216 flow. Second operand 5 states and 272 transitions. [2023-11-23 16:10:42,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 105 transitions, 346 flow [2023-11-23 16:10:42,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 105 transitions, 346 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 16:10:42,902 INFO L231 Difference]: Finished difference. Result has 102 places, 105 transitions, 222 flow [2023-11-23 16:10:42,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=222, PETRI_PLACES=102, PETRI_TRANSITIONS=105} [2023-11-23 16:10:42,902 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -25 predicate places. [2023-11-23 16:10:42,903 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 105 transitions, 222 flow [2023-11-23 16:10:42,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 16:10:42,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:42,903 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:42,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 16:10:42,904 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-23 16:10:42,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:42,904 INFO L85 PathProgramCache]: Analyzing trace with hash 839059637, now seen corresponding path program 1 times [2023-11-23 16:10:42,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:42,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596639975] [2023-11-23 16:10:42,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:42,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:43,205 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 16:10:43,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:43,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596639975] [2023-11-23 16:10:43,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596639975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:10:43,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:10:43,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:10:43,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756262538] [2023-11-23 16:10:43,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:10:43,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:10:43,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:43,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:10:43,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:10:43,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 148 [2023-11-23 16:10:43,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 105 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:43,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:43,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 148 [2023-11-23 16:10:43,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:43,558 INFO L124 PetriNetUnfolderBase]: 240/646 cut-off events. [2023-11-23 16:10:43,558 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-23 16:10:43,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1139 conditions, 646 events. 240/646 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3487 event pairs, 195 based on Foata normal form. 0/593 useless extension candidates. Maximal degree in co-relation 1135. Up to 406 conditions per place. [2023-11-23 16:10:43,562 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 77 selfloop transitions, 2 changer transitions 0/117 dead transitions. [2023-11-23 16:10:43,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 117 transitions, 405 flow [2023-11-23 16:10:43,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:10:43,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 16:10:43,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2023-11-23 16:10:43,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45045045045045046 [2023-11-23 16:10:43,565 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 200 transitions. [2023-11-23 16:10:43,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 200 transitions. [2023-11-23 16:10:43,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:43,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 200 transitions. [2023-11-23 16:10:43,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states 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 16:10:43,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states 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 16:10:43,567 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states 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 16:10:43,567 INFO L175 Difference]: Start difference. First operand has 102 places, 105 transitions, 222 flow. Second operand 3 states and 200 transitions. [2023-11-23 16:10:43,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 117 transitions, 405 flow [2023-11-23 16:10:43,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 117 transitions, 397 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 16:10:43,569 INFO L231 Difference]: Finished difference. Result has 99 places, 104 transitions, 216 flow [2023-11-23 16:10:43,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=99, PETRI_TRANSITIONS=104} [2023-11-23 16:10:43,570 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -28 predicate places. [2023-11-23 16:10:43,570 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 104 transitions, 216 flow [2023-11-23 16:10:43,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:43,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:43,571 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:43,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 16:10:43,571 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-23 16:10:43,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:43,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1117454345, now seen corresponding path program 1 times [2023-11-23 16:10:43,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:43,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66339284] [2023-11-23 16:10:43,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:43,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:43,724 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 16:10:43,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:43,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66339284] [2023-11-23 16:10:43,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66339284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:10:43,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:10:43,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:10:43,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749029077] [2023-11-23 16:10:43,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:10:43,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:10:43,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:43,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:10:43,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:10:43,735 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 148 [2023-11-23 16:10:43,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 104 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states 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 16:10:43,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:43,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 148 [2023-11-23 16:10:43,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:44,061 INFO L124 PetriNetUnfolderBase]: 240/670 cut-off events. [2023-11-23 16:10:44,061 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-11-23 16:10:44,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1207 conditions, 670 events. 240/670 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3591 event pairs, 63 based on Foata normal form. 0/598 useless extension candidates. Maximal degree in co-relation 1203. Up to 285 conditions per place. [2023-11-23 16:10:44,064 INFO L140 encePairwiseOnDemand]: 146/148 looper letters, 78 selfloop transitions, 1 changer transitions 0/116 dead transitions. [2023-11-23 16:10:44,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 116 transitions, 399 flow [2023-11-23 16:10:44,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:10:44,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 16:10:44,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2023-11-23 16:10:44,066 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45045045045045046 [2023-11-23 16:10:44,066 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 200 transitions. [2023-11-23 16:10:44,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 200 transitions. [2023-11-23 16:10:44,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:44,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 200 transitions. [2023-11-23 16:10:44,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states 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 16:10:44,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states 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 16:10:44,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states 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 16:10:44,068 INFO L175 Difference]: Start difference. First operand has 99 places, 104 transitions, 216 flow. Second operand 3 states and 200 transitions. [2023-11-23 16:10:44,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 116 transitions, 399 flow [2023-11-23 16:10:44,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 116 transitions, 395 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 16:10:44,070 INFO L231 Difference]: Finished difference. Result has 98 places, 103 transitions, 212 flow [2023-11-23 16:10:44,070 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=98, PETRI_TRANSITIONS=103} [2023-11-23 16:10:44,071 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -29 predicate places. [2023-11-23 16:10:44,071 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 103 transitions, 212 flow [2023-11-23 16:10:44,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states 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 16:10:44,071 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:44,072 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:44,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 16:10:44,072 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_changeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-23 16:10:44,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:44,072 INFO L85 PathProgramCache]: Analyzing trace with hash -281343631, now seen corresponding path program 1 times [2023-11-23 16:10:44,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:44,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561188340] [2023-11-23 16:10:44,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:44,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:44,255 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 16:10:44,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:44,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561188340] [2023-11-23 16:10:44,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561188340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:10:44,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:10:44,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:10:44,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410573496] [2023-11-23 16:10:44,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:10:44,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:10:44,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:44,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:10:44,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:10:44,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 148 [2023-11-23 16:10:44,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 103 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:44,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:44,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 148 [2023-11-23 16:10:44,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:44,627 INFO L124 PetriNetUnfolderBase]: 273/679 cut-off events. [2023-11-23 16:10:44,627 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-23 16:10:44,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1249 conditions, 679 events. 273/679 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3443 event pairs, 129 based on Foata normal form. 24/631 useless extension candidates. Maximal degree in co-relation 1245. Up to 292 conditions per place. [2023-11-23 16:10:44,630 INFO L140 encePairwiseOnDemand]: 146/148 looper letters, 79 selfloop transitions, 1 changer transitions 0/115 dead transitions. [2023-11-23 16:10:44,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 115 transitions, 397 flow [2023-11-23 16:10:44,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:10:44,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 16:10:44,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 198 transitions. [2023-11-23 16:10:44,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44594594594594594 [2023-11-23 16:10:44,632 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 198 transitions. [2023-11-23 16:10:44,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 198 transitions. [2023-11-23 16:10:44,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:44,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 198 transitions. [2023-11-23 16:10:44,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:44,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states 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 16:10:44,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states 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 16:10:44,634 INFO L175 Difference]: Start difference. First operand has 98 places, 103 transitions, 212 flow. Second operand 3 states and 198 transitions. [2023-11-23 16:10:44,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 115 transitions, 397 flow [2023-11-23 16:10:44,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 115 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 16:10:44,636 INFO L231 Difference]: Finished difference. Result has 98 places, 102 transitions, 211 flow [2023-11-23 16:10:44,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=98, PETRI_TRANSITIONS=102} [2023-11-23 16:10:44,637 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -29 predicate places. [2023-11-23 16:10:44,637 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 102 transitions, 211 flow [2023-11-23 16:10:44,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:44,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:44,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:44,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 16:10:44,638 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-23 16:10:44,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:44,638 INFO L85 PathProgramCache]: Analyzing trace with hash -131715271, now seen corresponding path program 1 times [2023-11-23 16:10:44,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:44,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915133667] [2023-11-23 16:10:44,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:44,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:44,870 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 16:10:44,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:44,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915133667] [2023-11-23 16:10:44,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915133667] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:10:44,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:10:44,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:10:44,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204853800] [2023-11-23 16:10:44,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:10:44,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:10:44,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:44,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:10:44,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:10:44,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 148 [2023-11-23 16:10:44,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 102 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:44,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:44,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 148 [2023-11-23 16:10:44,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:45,081 INFO L124 PetriNetUnfolderBase]: 240/611 cut-off events. [2023-11-23 16:10:45,081 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-23 16:10:45,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1149 conditions, 611 events. 240/611 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3071 event pairs, 228 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 1145. Up to 463 conditions per place. [2023-11-23 16:10:45,087 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 65 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2023-11-23 16:10:45,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 103 transitions, 347 flow [2023-11-23 16:10:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:10:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 16:10:45,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 191 transitions. [2023-11-23 16:10:45,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43018018018018017 [2023-11-23 16:10:45,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 191 transitions. [2023-11-23 16:10:45,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 191 transitions. [2023-11-23 16:10:45,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:45,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 191 transitions. [2023-11-23 16:10:45,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states 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 16:10:45,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states 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 16:10:45,122 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states 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 16:10:45,122 INFO L175 Difference]: Start difference. First operand has 98 places, 102 transitions, 211 flow. Second operand 3 states and 191 transitions. [2023-11-23 16:10:45,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 103 transitions, 347 flow [2023-11-23 16:10:45,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 103 transitions, 346 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 16:10:45,124 INFO L231 Difference]: Finished difference. Result has 100 places, 103 transitions, 222 flow [2023-11-23 16:10:45,125 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=100, PETRI_TRANSITIONS=103} [2023-11-23 16:10:45,125 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -27 predicate places. [2023-11-23 16:10:45,125 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 103 transitions, 222 flow [2023-11-23 16:10:45,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:45,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:45,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:45,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 16:10:45,126 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-23 16:10:45,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:45,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1696269041, now seen corresponding path program 1 times [2023-11-23 16:10:45,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:45,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464062406] [2023-11-23 16:10:45,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:45,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:45,391 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 16:10:45,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:45,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464062406] [2023-11-23 16:10:45,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464062406] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:10:45,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080185653] [2023-11-23 16:10:45,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:45,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:10:45,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:10:45,393 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 16:10:45,417 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 16:10:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:45,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 16:10:45,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:10:45,976 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 16:10:45,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:10:45,996 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 16:10:45,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080185653] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:10:45,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:10:45,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-11-23 16:10:45,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112545402] [2023-11-23 16:10:45,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:10:45,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 16:10:45,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:45,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 16:10:45,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-11-23 16:10:45,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 148 [2023-11-23 16:10:45,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 103 transitions, 222 flow. Second operand has 8 states, 8 states have (on average 43.5) internal successors, (348), 8 states have internal predecessors, (348), 0 states have call successors, (0), 0 states 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 16:10:45,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:45,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 148 [2023-11-23 16:10:45,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:46,400 INFO L124 PetriNetUnfolderBase]: 240/616 cut-off events. [2023-11-23 16:10:46,400 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 16:10:46,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 616 events. 240/616 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3051 event pairs, 228 based on Foata normal form. 0/574 useless extension candidates. Maximal degree in co-relation 1163. Up to 463 conditions per place. [2023-11-23 16:10:46,403 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 64 selfloop transitions, 8 changer transitions 0/108 dead transitions. [2023-11-23 16:10:46,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 108 transitions, 382 flow [2023-11-23 16:10:46,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 16:10:46,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 16:10:46,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 323 transitions. [2023-11-23 16:10:46,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36373873873873874 [2023-11-23 16:10:46,405 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 323 transitions. [2023-11-23 16:10:46,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 323 transitions. [2023-11-23 16:10:46,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:46,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 323 transitions. [2023-11-23 16:10:46,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 0 states 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 16:10:46,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 148.0) internal successors, (1036), 7 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states 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 16:10:46,407 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 148.0) internal successors, (1036), 7 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states 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 16:10:46,408 INFO L175 Difference]: Start difference. First operand has 100 places, 103 transitions, 222 flow. Second operand 6 states and 323 transitions. [2023-11-23 16:10:46,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 108 transitions, 382 flow [2023-11-23 16:10:46,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 108 transitions, 378 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-23 16:10:46,410 INFO L231 Difference]: Finished difference. Result has 107 places, 108 transitions, 274 flow [2023-11-23 16:10:46,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=274, PETRI_PLACES=107, PETRI_TRANSITIONS=108} [2023-11-23 16:10:46,410 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -20 predicate places. [2023-11-23 16:10:46,410 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 108 transitions, 274 flow [2023-11-23 16:10:46,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 43.5) internal successors, (348), 8 states have internal predecessors, (348), 0 states have call successors, (0), 0 states 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 16:10:46,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:46,411 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:46,429 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 16:10:46,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:10:46,629 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-23 16:10:46,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:46,630 INFO L85 PathProgramCache]: Analyzing trace with hash -124166855, now seen corresponding path program 2 times [2023-11-23 16:10:46,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:46,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151182655] [2023-11-23 16:10:46,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:46,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:46,947 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 16:10:46,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:46,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151182655] [2023-11-23 16:10:46,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151182655] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:10:46,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460615174] [2023-11-23 16:10:46,948 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 16:10:46,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:10:46,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:10:46,949 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 16:10:46,953 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 16:10:48,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 16:10:48,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:10:48,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 16:10:48,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:10:48,350 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 16:10:48,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:10:48,410 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 16:10:48,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460615174] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:10:48,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:10:48,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-11-23 16:10:48,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725624352] [2023-11-23 16:10:48,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:10:48,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 16:10:48,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:48,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 16:10:48,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-23 16:10:48,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 148 [2023-11-23 16:10:48,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 108 transitions, 274 flow. Second operand has 14 states, 14 states have (on average 42.857142857142854) internal successors, (600), 14 states have internal predecessors, (600), 0 states have call successors, (0), 0 states 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 16:10:48,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:48,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 148 [2023-11-23 16:10:48,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:49,386 INFO L124 PetriNetUnfolderBase]: 240/625 cut-off events. [2023-11-23 16:10:49,386 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-23 16:10:49,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1222 conditions, 625 events. 240/625 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3039 event pairs, 228 based on Foata normal form. 9/594 useless extension candidates. Maximal degree in co-relation 1214. Up to 463 conditions per place. [2023-11-23 16:10:49,389 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 64 selfloop transitions, 17 changer transitions 0/117 dead transitions. [2023-11-23 16:10:49,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 117 transitions, 484 flow [2023-11-23 16:10:49,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 16:10:49,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-23 16:10:49,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 582 transitions. [2023-11-23 16:10:49,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3277027027027027 [2023-11-23 16:10:49,392 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 582 transitions. [2023-11-23 16:10:49,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 582 transitions. [2023-11-23 16:10:49,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:49,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 582 transitions. [2023-11-23 16:10:49,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 48.5) internal successors, (582), 12 states have internal predecessors, (582), 0 states have call successors, (0), 0 states 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 16:10:49,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 148.0) internal successors, (1924), 13 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states 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 16:10:49,395 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 148.0) internal successors, (1924), 13 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states 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 16:10:49,396 INFO L175 Difference]: Start difference. First operand has 107 places, 108 transitions, 274 flow. Second operand 12 states and 582 transitions. [2023-11-23 16:10:49,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 117 transitions, 484 flow [2023-11-23 16:10:49,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 117 transitions, 474 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-11-23 16:10:49,398 INFO L231 Difference]: Finished difference. Result has 123 places, 117 transitions, 390 flow [2023-11-23 16:10:49,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=390, PETRI_PLACES=123, PETRI_TRANSITIONS=117} [2023-11-23 16:10:49,399 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -4 predicate places. [2023-11-23 16:10:49,399 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 117 transitions, 390 flow [2023-11-23 16:10:49,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 42.857142857142854) internal successors, (600), 14 states have internal predecessors, (600), 0 states have call successors, (0), 0 states 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 16:10:49,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:49,399 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:49,408 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 16:10:49,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-23 16:10:49,600 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-23 16:10:49,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:49,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1140392505, now seen corresponding path program 3 times [2023-11-23 16:10:49,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:49,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841193995] [2023-11-23 16:10:49,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:49,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:50,335 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 16:10:50,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:50,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841193995] [2023-11-23 16:10:50,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841193995] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:10:50,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357100954] [2023-11-23 16:10:50,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 16:10:50,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:10:50,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:10:50,340 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 16:10:50,390 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 16:11:04,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-23 16:11:04,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:11:04,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-23 16:11:04,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:11:04,607 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 16:11:04,607 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:11:05,065 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 16:11:05,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357100954] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:11:05,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:11:05,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2023-11-23 16:11:05,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263344006] [2023-11-23 16:11:05,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:11:05,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-23 16:11:05,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:11:05,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-23 16:11:05,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=676, Unknown=0, NotChecked=0, Total=992 [2023-11-23 16:11:05,068 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 148 [2023-11-23 16:11:05,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 117 transitions, 390 flow. Second operand has 32 states, 32 states have (on average 42.375) internal successors, (1356), 32 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states 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 16:11:05,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:11:05,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 148 [2023-11-23 16:11:05,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:11:08,831 INFO L124 PetriNetUnfolderBase]: 240/643 cut-off events. [2023-11-23 16:11:08,831 INFO L125 PetriNetUnfolderBase]: For 539/539 co-relation queries the response was YES. [2023-11-23 16:11:08,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 643 events. 240/643 cut-off events. For 539/539 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3010 event pairs, 228 based on Foata normal form. 18/621 useless extension candidates. Maximal degree in co-relation 1332. Up to 463 conditions per place. [2023-11-23 16:11:08,835 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 64 selfloop transitions, 35 changer transitions 0/135 dead transitions. [2023-11-23 16:11:08,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 135 transitions, 720 flow [2023-11-23 16:11:08,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 16:11:08,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-23 16:11:08,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1101 transitions. [2023-11-23 16:11:08,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30996621621621623 [2023-11-23 16:11:08,840 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 1101 transitions. [2023-11-23 16:11:08,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 1101 transitions. [2023-11-23 16:11:08,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:11:08,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 1101 transitions. [2023-11-23 16:11:08,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 45.875) internal successors, (1101), 24 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states 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 16:11:08,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 148.0) internal successors, (3700), 25 states have internal predecessors, (3700), 0 states have call successors, (0), 0 states 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 16:11:08,848 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 148.0) internal successors, (3700), 25 states have internal predecessors, (3700), 0 states have call successors, (0), 0 states 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 16:11:08,848 INFO L175 Difference]: Start difference. First operand has 123 places, 117 transitions, 390 flow. Second operand 24 states and 1101 transitions. [2023-11-23 16:11:08,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 135 transitions, 720 flow [2023-11-23 16:11:08,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 135 transitions, 644 flow, removed 36 selfloop flow, removed 2 redundant places. [2023-11-23 16:11:08,855 INFO L231 Difference]: Finished difference. Result has 156 places, 135 transitions, 602 flow [2023-11-23 16:11:08,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=602, PETRI_PLACES=156, PETRI_TRANSITIONS=135} [2023-11-23 16:11:08,860 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 29 predicate places. [2023-11-23 16:11:08,860 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 135 transitions, 602 flow [2023-11-23 16:11:08,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 42.375) internal successors, (1356), 32 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states 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 16:11:08,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:11:08,861 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:11:08,874 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 16:11:09,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:11:09,073 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-23 16:11:09,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:11:09,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1482230841, now seen corresponding path program 4 times [2023-11-23 16:11:09,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:11:09,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282732199] [2023-11-23 16:11:09,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:11:09,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:11:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:11:10,386 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 16:11:10,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:11:10,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282732199] [2023-11-23 16:11:10,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282732199] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:11:10,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303308518] [2023-11-23 16:11:10,387 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 16:11:10,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:11:10,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:11:10,388 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 16:11:10,389 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 16:11:12,897 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 16:11:12,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:11:12,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-23 16:11:12,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:11:13,024 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 16:11:13,025 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:11:13,932 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 16:11:13,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303308518] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:11:13,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:11:13,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 49 [2023-11-23 16:11:13,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504681103] [2023-11-23 16:11:13,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:11:13,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-23 16:11:13,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:11:13,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-23 16:11:13,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=718, Invalid=1732, Unknown=0, NotChecked=0, Total=2450 [2023-11-23 16:11:13,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 148 [2023-11-23 16:11:13,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 135 transitions, 602 flow. Second operand has 50 states, 50 states have (on average 42.24) internal successors, (2112), 50 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 16:11:13,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:11:13,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 148 [2023-11-23 16:11:13,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:11:54,556 INFO L124 PetriNetUnfolderBase]: 240/672 cut-off events. [2023-11-23 16:11:54,556 INFO L125 PetriNetUnfolderBase]: For 5581/5581 co-relation queries the response was YES. [2023-11-23 16:11:54,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1540 conditions, 672 events. 240/672 cut-off events. For 5581/5581 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3020 event pairs, 228 based on Foata normal form. 29/661 useless extension candidates. Maximal degree in co-relation 1512. Up to 463 conditions per place. [2023-11-23 16:11:54,559 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 64 selfloop transitions, 64 changer transitions 0/164 dead transitions. [2023-11-23 16:11:54,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 164 transitions, 1080 flow [2023-11-23 16:11:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-23 16:11:54,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-11-23 16:11:54,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 2125 transitions. [2023-11-23 16:11:54,565 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.29912725225225223 [2023-11-23 16:11:54,565 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 2125 transitions. [2023-11-23 16:11:54,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 2125 transitions. [2023-11-23 16:11:54,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:11:54,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 2125 transitions. [2023-11-23 16:11:54,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 44.270833333333336) internal successors, (2125), 48 states have internal predecessors, (2125), 0 states have call successors, (0), 0 states 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 16:11:54,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 148.0) internal successors, (7252), 49 states have internal predecessors, (7252), 0 states have call successors, (0), 0 states 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 16:11:54,578 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 148.0) internal successors, (7252), 49 states have internal predecessors, (7252), 0 states have call successors, (0), 0 states 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 16:11:54,578 INFO L175 Difference]: Start difference. First operand has 156 places, 135 transitions, 602 flow. Second operand 48 states and 2125 transitions. [2023-11-23 16:11:54,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 164 transitions, 1080 flow [2023-11-23 16:11:54,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 164 transitions, 938 flow, removed 64 selfloop flow, removed 6 redundant places. [2023-11-23 16:11:54,585 INFO L231 Difference]: Finished difference. Result has 221 places, 164 transitions, 952 flow [2023-11-23 16:11:54,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=952, PETRI_PLACES=221, PETRI_TRANSITIONS=164} [2023-11-23 16:11:54,588 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 94 predicate places. [2023-11-23 16:11:54,588 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 164 transitions, 952 flow [2023-11-23 16:11:54,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 42.24) internal successors, (2112), 50 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 16:11:54,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:11:54,589 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:11:54,603 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 16:11:54,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:11:54,803 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_configureErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, whoop_wrapper_pc8736x_gpio_configureErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2023-11-23 16:11:54,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:11:54,803 INFO L85 PathProgramCache]: Analyzing trace with hash -765714375, now seen corresponding path program 5 times [2023-11-23 16:11:54,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:11:54,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283449606] [2023-11-23 16:11:54,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:11:54,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:11:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:11:57,875 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 16:11:57,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:11:57,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283449606] [2023-11-23 16:11:57,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283449606] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:11:57,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993614320] [2023-11-23 16:11:57,875 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 16:11:57,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:11:57,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:11:57,876 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 16:11:57,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Killed by 15