./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_current.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_current.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 16a5066f849f5d60682ad0c8a91e636e020ca0673e24382bdab87cda9228557d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-c4f9136-m [2023-11-23 16:10:34,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 16:10:34,606 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 16:10:34,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 16:10:34,609 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 16:10:34,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 16:10:34,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 16:10:34,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 16:10:34,625 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 16:10:34,625 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 16:10:34,625 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 16:10:34,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 16:10:34,626 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 16:10:34,626 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 16:10:34,627 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 16:10:34,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 16:10:34,627 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 16:10:34,627 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 16:10:34,628 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 16:10:34,628 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 16:10:34,628 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 16:10:34,629 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 16:10:34,629 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 16:10:34,629 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 16:10:34,630 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 16:10:34,630 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 16:10:34,630 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 16:10:34,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 16:10:34,631 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 16:10:34,631 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 16:10:34,631 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 16:10:34,632 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 16:10:34,632 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 16:10:34,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 16:10:34,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 16:10:34,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 16:10:34,633 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 16:10:34,633 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 16:10:34,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 16:10:34,634 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 16:10:34,634 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 16:10:34,634 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 16:10:34,634 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 16:10:34,634 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 16:10:34,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16a5066f849f5d60682ad0c8a91e636e020ca0673e24382bdab87cda9228557d [2023-11-23 16:10:34,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 16:10:34,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 16:10:34,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 16:10:34,835 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 16:10:34,836 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 16:10:34,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-11-23 16:10:35,930 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 16:10:36,349 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 16:10:36,350 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-11-23 16:10:36,393 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7df504262/af887486d5814130bfca075b13e2436a/FLAGfdd1c2429 [2023-11-23 16:10:36,409 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7df504262/af887486d5814130bfca075b13e2436a [2023-11-23 16:10:36,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 16:10:36,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 16:10:36,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 16:10:36,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 16:10:36,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 16:10:36,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:10:36" (1/1) ... [2023-11-23 16:10:36,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a046bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36, skipping insertion in model container [2023-11-23 16:10:36,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:10:36" (1/1) ... [2023-11-23 16:10:36,509 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 16:10:39,668 WARN L1590 CHandler]: Possible shadowing of function iminor [2023-11-23 16:10:39,671 WARN L1590 CHandler]: Possible shadowing of function iminor [2023-11-23 16:10:39,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 16:10:39,763 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 16:10:39,847 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 16:10:39,848 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 16:10:39,848 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 16:10:39,849 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 16:10:39,924 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5814] [2023-11-23 16:10:39,952 WARN L1590 CHandler]: Possible shadowing of function iminor [2023-11-23 16:10:39,953 WARN L1590 CHandler]: Possible shadowing of function iminor [2023-11-23 16:10:40,051 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 16:10:40,439 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 16:10:40,440 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 16:10:40,440 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 16:10:40,440 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 16:10:40,440 WARN L675 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 16:10:40,440 WARN L675 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 16:10:40,446 INFO L206 MainTranslator]: Completed translation [2023-11-23 16:10:40,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:40 WrapperNode [2023-11-23 16:10:40,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 16:10:40,447 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 16:10:40,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 16:10:40,448 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 16:10:40,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:40" (1/1) ... [2023-11-23 16:10:40,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:40" (1/1) ... [2023-11-23 16:10:40,598 INFO L138 Inliner]: procedures = 1393, calls = 1538, calls flagged for inlining = 393, calls inlined = 58, statements flattened = 786 [2023-11-23 16:10:40,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 16:10:40,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 16:10:40,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 16:10:40,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 16:10:40,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:40" (1/1) ... [2023-11-23 16:10:40,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:40" (1/1) ... [2023-11-23 16:10:40,624 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:40" (1/1) ... [2023-11-23 16:10:40,659 INFO L175 MemorySlicer]: Split 55 memory accesses to 12 slices as follows [2, 1, 2, 2, 2, 11, 4, 9, 10, 6, 4, 2]. 20 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 1, 0, 0, 2, 4, 0, 4, 8, 0, 4, 0]. The 14 writes are split as follows [0, 0, 1, 1, 0, 2, 1, 0, 1, 6, 0, 2]. [2023-11-23 16:10:40,666 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:40" (1/1) ... [2023-11-23 16:10:40,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:40" (1/1) ... [2023-11-23 16:10:40,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:40" (1/1) ... [2023-11-23 16:10:40,702 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:40" (1/1) ... [2023-11-23 16:10:40,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:40" (1/1) ... [2023-11-23 16:10:40,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:40" (1/1) ... [2023-11-23 16:10:40,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 16:10:40,747 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 16:10:40,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 16:10:40,747 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 16:10:40,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:40" (1/1) ... [2023-11-23 16:10:40,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 16:10:40,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:10:40,770 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 16:10:40,809 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 16:10:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 16:10:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 16:10:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 16:10:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 16:10:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 16:10:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 16:10:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 16:10:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 16:10:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 16:10:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-23 16:10:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-23 16:10:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-23 16:10:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 16:10:40,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 16:10:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 16:10:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 16:10:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 16:10:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 16:10:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 16:10:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 16:10:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 16:10:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 16:10:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-23 16:10:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-23 16:10:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-23 16:10:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-23 16:10:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-11-23 16:10:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-11-23 16:10:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-11-23 16:10:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-11-23 16:10:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 16:10:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 16:10:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-23 16:10:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-23 16:10:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-23 16:10:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-23 16:10:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-23 16:10:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-23 16:10:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-23 16:10:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-23 16:10:40,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-23 16:10:40,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-23 16:10:40,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-23 16:10:40,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-23 16:10:40,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 16:10:40,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 16:10:40,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 16:10:40,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 16:10:40,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 16:10:40,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 16:10:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 16:10:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 16:10:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 16:10:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-23 16:10:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-23 16:10:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-23 16:10:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-23 16:10:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 16:10:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 16:10:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 16:10:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 16:10:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 16:10:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 16:10:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 16:10:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 16:10:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 16:10:40,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-23 16:10:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-23 16:10:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-23 16:10:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 16:10:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 16:10:40,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 16:10:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 16:10:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 16:10:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 16:10:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 16:10:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 16:10:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 16:10:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 16:10:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 16:10:40,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-23 16:10:40,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-23 16:10:40,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-23 16:10:40,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-23 16:10:40,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 16:10:40,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 16:10:40,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 16:10:40,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 16:10:40,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 16:10:40,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 16:10:40,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 16:10:40,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 16:10:40,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 16:10:40,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 16:10:40,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-23 16:10:40,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-23 16:10:40,847 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 16:10:41,235 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 16:10:41,237 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 16:10:41,794 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 16:10:42,538 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 16:10:42,539 INFO L309 CfgBuilder]: Removed 25 assume(true) statements. [2023-11-23 16:10:42,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:10:42 BoogieIcfgContainer [2023-11-23 16:10:42,540 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 16:10:42,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 16:10:42,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 16:10:42,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 16:10:42,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:10:36" (1/3) ... [2023-11-23 16:10:42,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fa110b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:10:42, skipping insertion in model container [2023-11-23 16:10:42,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:40" (2/3) ... [2023-11-23 16:10:42,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fa110b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:10:42, skipping insertion in model container [2023-11-23 16:10:42,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:10:42" (3/3) ... [2023-11-23 16:10:42,548 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-11-23 16:10:42,557 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 16:10:42,565 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 16:10:42,565 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-23 16:10:42,565 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 16:10:42,625 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 16:10:42,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 133 transitions, 280 flow [2023-11-23 16:10:42,708 INFO L124 PetriNetUnfolderBase]: 24/131 cut-off events. [2023-11-23 16:10:42,708 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-23 16:10:42,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 131 events. 24/131 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 296 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 101. Up to 5 conditions per place. [2023-11-23 16:10:42,714 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 133 transitions, 280 flow [2023-11-23 16:10:42,720 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 129 transitions, 267 flow [2023-11-23 16:10:42,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 16:10:42,742 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;@5fb02d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 16:10:42,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-23 16:10:42,751 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 16:10:42,752 INFO L124 PetriNetUnfolderBase]: 3/14 cut-off events. [2023-11-23 16:10:42,752 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 16:10:42,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:42,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 16:10:42,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-23 16:10:42,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:42,762 INFO L85 PathProgramCache]: Analyzing trace with hash -192834863, now seen corresponding path program 1 times [2023-11-23 16:10:42,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:42,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738110995] [2023-11-23 16:10:42,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:42,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:43,105 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 16:10:43,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:43,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738110995] [2023-11-23 16:10:43,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738110995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:10:43,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:10:43,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 16:10:43,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585725615] [2023-11-23 16:10:43,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:10:43,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 16:10:43,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:43,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 16:10:43,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 16:10:43,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 133 [2023-11-23 16:10:43,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 129 transitions, 267 flow. Second operand has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 16:10:43,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:43,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 133 [2023-11-23 16:10:43,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:43,417 INFO L124 PetriNetUnfolderBase]: 235/585 cut-off events. [2023-11-23 16:10:43,417 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-11-23 16:10:43,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1073 conditions, 585 events. 235/585 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2571 event pairs, 222 based on Foata normal form. 7/553 useless extension candidates. Maximal degree in co-relation 809. Up to 458 conditions per place. [2023-11-23 16:10:43,422 INFO L140 encePairwiseOnDemand]: 108/133 looper letters, 69 selfloop transitions, 0 changer transitions 0/104 dead transitions. [2023-11-23 16:10:43,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 104 transitions, 355 flow [2023-11-23 16:10:43,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 16:10:43,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-23 16:10:43,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 168 transitions. [2023-11-23 16:10:43,433 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.631578947368421 [2023-11-23 16:10:43,433 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 168 transitions. [2023-11-23 16:10:43,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 168 transitions. [2023-11-23 16:10:43,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:43,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 168 transitions. [2023-11-23 16:10:43,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states 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 16:10:43,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states 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 16:10:43,442 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states 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 16:10:43,443 INFO L175 Difference]: Start difference. First operand has 112 places, 129 transitions, 267 flow. Second operand 2 states and 168 transitions. [2023-11-23 16:10:43,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 104 transitions, 355 flow [2023-11-23 16:10:43,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 104 transitions, 350 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-23 16:10:43,449 INFO L231 Difference]: Finished difference. Result has 96 places, 104 transitions, 212 flow [2023-11-23 16:10:43,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=212, PETRI_PLACES=96, PETRI_TRANSITIONS=104} [2023-11-23 16:10:43,453 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -16 predicate places. [2023-11-23 16:10:43,453 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 104 transitions, 212 flow [2023-11-23 16:10:43,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 16:10:43,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:43,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:43,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 16:10:43,454 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-23 16:10:43,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:43,455 INFO L85 PathProgramCache]: Analyzing trace with hash -896624567, now seen corresponding path program 1 times [2023-11-23 16:10:43,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:43,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111607528] [2023-11-23 16:10:43,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:43,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:43,632 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 16:10:43,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:43,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111607528] [2023-11-23 16:10:43,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111607528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:10:43,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:10:43,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:10:43,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409418231] [2023-11-23 16:10:43,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:10:43,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:10:43,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:43,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:10:43,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:10:43,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 133 [2023-11-23 16:10:43,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 104 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states 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 16:10:43,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:43,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 133 [2023-11-23 16:10:43,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:43,930 INFO L124 PetriNetUnfolderBase]: 234/584 cut-off events. [2023-11-23 16:10:43,930 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-23 16:10:43,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1054 conditions, 584 events. 234/584 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2589 event pairs, 222 based on Foata normal form. 0/546 useless extension candidates. Maximal degree in co-relation 1051. Up to 452 conditions per place. [2023-11-23 16:10:43,934 INFO L140 encePairwiseOnDemand]: 128/133 looper letters, 64 selfloop transitions, 4 changer transitions 0/103 dead transitions. [2023-11-23 16:10:43,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 103 transitions, 346 flow [2023-11-23 16:10:43,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 16:10:43,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-23 16:10:43,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 254 transitions. [2023-11-23 16:10:43,936 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3819548872180451 [2023-11-23 16:10:43,936 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 254 transitions. [2023-11-23 16:10:43,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 254 transitions. [2023-11-23 16:10:43,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:43,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 254 transitions. [2023-11-23 16:10:43,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.8) internal successors, (254), 5 states have internal predecessors, (254), 0 states have call successors, (0), 0 states 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 16:10:43,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states 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 16:10:43,940 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states 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 16:10:43,940 INFO L175 Difference]: Start difference. First operand has 96 places, 104 transitions, 212 flow. Second operand 5 states and 254 transitions. [2023-11-23 16:10:43,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 103 transitions, 346 flow [2023-11-23 16:10:43,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 103 transitions, 346 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 16:10:43,942 INFO L231 Difference]: Finished difference. Result has 100 places, 103 transitions, 218 flow [2023-11-23 16:10:43,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=218, PETRI_PLACES=100, PETRI_TRANSITIONS=103} [2023-11-23 16:10:43,943 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -12 predicate places. [2023-11-23 16:10:43,944 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 103 transitions, 218 flow [2023-11-23 16:10:43,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states 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 16:10:43,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:43,944 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:43,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 16:10:43,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-23 16:10:43,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:43,945 INFO L85 PathProgramCache]: Analyzing trace with hash -776258271, now seen corresponding path program 1 times [2023-11-23 16:10:43,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:43,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248231737] [2023-11-23 16:10:43,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:43,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:44,166 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 16:10:44,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:44,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248231737] [2023-11-23 16:10:44,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248231737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:10:44,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:10:44,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:10:44,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761788270] [2023-11-23 16:10:44,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:10:44,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:10:44,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:44,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:10:44,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:10:44,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 133 [2023-11-23 16:10:44,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 103 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:44,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:44,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 133 [2023-11-23 16:10:44,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:44,415 INFO L124 PetriNetUnfolderBase]: 234/548 cut-off events. [2023-11-23 16:10:44,415 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-23 16:10:44,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 548 events. 234/548 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2331 event pairs, 101 based on Foata normal form. 0/518 useless extension candidates. Maximal degree in co-relation 1019. Up to 231 conditions per place. [2023-11-23 16:10:44,417 INFO L140 encePairwiseOnDemand]: 130/133 looper letters, 71 selfloop transitions, 2 changer transitions 12/119 dead transitions. [2023-11-23 16:10:44,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 119 transitions, 422 flow [2023-11-23 16:10:44,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:10:44,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 16:10:44,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 194 transitions. [2023-11-23 16:10:44,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48621553884711777 [2023-11-23 16:10:44,419 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 194 transitions. [2023-11-23 16:10:44,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 194 transitions. [2023-11-23 16:10:44,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:44,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 194 transitions. [2023-11-23 16:10:44,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:44,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 16:10:44,421 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 16:10:44,421 INFO L175 Difference]: Start difference. First operand has 100 places, 103 transitions, 218 flow. Second operand 3 states and 194 transitions. [2023-11-23 16:10:44,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 119 transitions, 422 flow [2023-11-23 16:10:44,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 119 transitions, 414 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 16:10:44,423 INFO L231 Difference]: Finished difference. Result has 97 places, 96 transitions, 200 flow [2023-11-23 16:10:44,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=97, PETRI_TRANSITIONS=96} [2023-11-23 16:10:44,424 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -15 predicate places. [2023-11-23 16:10:44,424 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 96 transitions, 200 flow [2023-11-23 16:10:44,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:44,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:44,425 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:44,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 16:10:44,425 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-23 16:10:44,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:44,425 INFO L85 PathProgramCache]: Analyzing trace with hash -461514365, now seen corresponding path program 1 times [2023-11-23 16:10:44,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:44,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442959378] [2023-11-23 16:10:44,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:44,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:44,554 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 16:10:44,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:44,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442959378] [2023-11-23 16:10:44,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442959378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:10:44,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:10:44,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:10:44,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876864642] [2023-11-23 16:10:44,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:10:44,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:10:44,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:44,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:10:44,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:10:44,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 133 [2023-11-23 16:10:44,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 96 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 16:10:44,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:44,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 133 [2023-11-23 16:10:44,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:44,810 INFO L124 PetriNetUnfolderBase]: 144/409 cut-off events. [2023-11-23 16:10:44,811 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2023-11-23 16:10:44,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 409 events. 144/409 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1799 event pairs, 87 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 754. Up to 214 conditions per place. [2023-11-23 16:10:44,813 INFO L140 encePairwiseOnDemand]: 130/133 looper letters, 67 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2023-11-23 16:10:44,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 102 transitions, 355 flow [2023-11-23 16:10:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:10:44,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 16:10:44,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2023-11-23 16:10:44,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44611528822055135 [2023-11-23 16:10:44,814 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 178 transitions. [2023-11-23 16:10:44,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 178 transitions. [2023-11-23 16:10:44,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:44,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 178 transitions. [2023-11-23 16:10:44,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states 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 16:10:44,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 16:10:44,816 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 16:10:44,816 INFO L175 Difference]: Start difference. First operand has 97 places, 96 transitions, 200 flow. Second operand 3 states and 178 transitions. [2023-11-23 16:10:44,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 102 transitions, 355 flow [2023-11-23 16:10:44,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 102 transitions, 347 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 16:10:44,818 INFO L231 Difference]: Finished difference. Result has 90 places, 95 transitions, 198 flow [2023-11-23 16:10:44,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=90, PETRI_TRANSITIONS=95} [2023-11-23 16:10:44,819 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -22 predicate places. [2023-11-23 16:10:44,819 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 95 transitions, 198 flow [2023-11-23 16:10:44,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 16:10:44,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:44,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:44,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 16:10:44,820 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-23 16:10:44,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:44,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1133600411, now seen corresponding path program 1 times [2023-11-23 16:10:44,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:44,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733789026] [2023-11-23 16:10:44,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:44,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:44,955 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 16:10:44,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:44,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733789026] [2023-11-23 16:10:44,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733789026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:10:44,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:10:44,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:10:44,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580420284] [2023-11-23 16:10:44,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:10:44,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:10:44,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:44,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:10:44,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:10:44,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 133 [2023-11-23 16:10:44,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 95 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:44,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:44,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 133 [2023-11-23 16:10:44,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:45,164 INFO L124 PetriNetUnfolderBase]: 144/403 cut-off events. [2023-11-23 16:10:45,164 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-23 16:10:45,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 403 events. 144/403 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1715 event pairs, 57 based on Foata normal form. 0/365 useless extension candidates. Maximal degree in co-relation 732. Up to 160 conditions per place. [2023-11-23 16:10:45,167 INFO L140 encePairwiseOnDemand]: 131/133 looper letters, 68 selfloop transitions, 1 changer transitions 0/101 dead transitions. [2023-11-23 16:10:45,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 101 transitions, 349 flow [2023-11-23 16:10:45,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:10:45,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 16:10:45,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2023-11-23 16:10:45,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44611528822055135 [2023-11-23 16:10:45,169 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 178 transitions. [2023-11-23 16:10:45,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 178 transitions. [2023-11-23 16:10:45,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:45,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 178 transitions. [2023-11-23 16:10:45,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states 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 16:10:45,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 16:10:45,171 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 16:10:45,171 INFO L175 Difference]: Start difference. First operand has 90 places, 95 transitions, 198 flow. Second operand 3 states and 178 transitions. [2023-11-23 16:10:45,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 101 transitions, 349 flow [2023-11-23 16:10:45,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 101 transitions, 345 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 16:10:45,174 INFO L231 Difference]: Finished difference. Result has 89 places, 94 transitions, 194 flow [2023-11-23 16:10:45,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=89, PETRI_TRANSITIONS=94} [2023-11-23 16:10:45,175 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -23 predicate places. [2023-11-23 16:10:45,175 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 94 transitions, 194 flow [2023-11-23 16:10:45,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:45,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:45,176 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:45,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 16:10:45,176 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-23 16:10:45,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:45,177 INFO L85 PathProgramCache]: Analyzing trace with hash -781872092, now seen corresponding path program 1 times [2023-11-23 16:10:45,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:45,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284251880] [2023-11-23 16:10:45,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:45,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:45,345 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 16:10:45,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:45,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284251880] [2023-11-23 16:10:45,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284251880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:10:45,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:10:45,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:10:45,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518960490] [2023-11-23 16:10:45,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:10:45,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:10:45,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:45,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:10:45,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:10:45,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 133 [2023-11-23 16:10:45,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 94 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 16:10:45,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:45,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 133 [2023-11-23 16:10:45,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:45,627 INFO L124 PetriNetUnfolderBase]: 159/406 cut-off events. [2023-11-23 16:10:45,627 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-23 16:10:45,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 754 conditions, 406 events. 159/406 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1602 event pairs, 87 based on Foata normal form. 12/380 useless extension candidates. Maximal degree in co-relation 750. Up to 214 conditions per place. [2023-11-23 16:10:45,629 INFO L140 encePairwiseOnDemand]: 131/133 looper letters, 69 selfloop transitions, 1 changer transitions 0/100 dead transitions. [2023-11-23 16:10:45,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 100 transitions, 347 flow [2023-11-23 16:10:45,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:10:45,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 16:10:45,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2023-11-23 16:10:45,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44110275689223055 [2023-11-23 16:10:45,630 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 176 transitions. [2023-11-23 16:10:45,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 176 transitions. [2023-11-23 16:10:45,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:45,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 176 transitions. [2023-11-23 16:10:45,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:45,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 16:10:45,632 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 16:10:45,632 INFO L175 Difference]: Start difference. First operand has 89 places, 94 transitions, 194 flow. Second operand 3 states and 176 transitions. [2023-11-23 16:10:45,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 100 transitions, 347 flow [2023-11-23 16:10:45,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 100 transitions, 346 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 16:10:45,634 INFO L231 Difference]: Finished difference. Result has 89 places, 93 transitions, 193 flow [2023-11-23 16:10:45,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=89, PETRI_TRANSITIONS=93} [2023-11-23 16:10:45,635 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -23 predicate places. [2023-11-23 16:10:45,635 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 93 transitions, 193 flow [2023-11-23 16:10:45,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 16:10:45,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:45,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:45,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 16:10:45,636 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-23 16:10:45,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:45,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1531771207, now seen corresponding path program 1 times [2023-11-23 16:10:45,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:45,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961789843] [2023-11-23 16:10:45,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:45,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:45,826 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 16:10:45,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:45,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961789843] [2023-11-23 16:10:45,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961789843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:10:45,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:10:45,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:10:45,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038578387] [2023-11-23 16:10:45,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:10:45,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:10:45,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:45,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:10:45,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:10:45,828 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 133 [2023-11-23 16:10:45,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 93 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:45,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:45,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 133 [2023-11-23 16:10:45,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:46,002 INFO L124 PetriNetUnfolderBase]: 144/389 cut-off events. [2023-11-23 16:10:46,003 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-11-23 16:10:46,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 723 conditions, 389 events. 144/389 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1556 event pairs, 132 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 719. Up to 295 conditions per place. [2023-11-23 16:10:46,004 INFO L140 encePairwiseOnDemand]: 130/133 looper letters, 61 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2023-11-23 16:10:46,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 94 transitions, 321 flow [2023-11-23 16:10:46,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:10:46,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 16:10:46,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2023-11-23 16:10:46,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43859649122807015 [2023-11-23 16:10:46,006 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 175 transitions. [2023-11-23 16:10:46,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 175 transitions. [2023-11-23 16:10:46,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:46,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 175 transitions. [2023-11-23 16:10:46,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states 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 16:10:46,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 16:10:46,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 16:10:46,008 INFO L175 Difference]: Start difference. First operand has 89 places, 93 transitions, 193 flow. Second operand 3 states and 175 transitions. [2023-11-23 16:10:46,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 94 transitions, 321 flow [2023-11-23 16:10:46,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 94 transitions, 320 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 16:10:46,009 INFO L231 Difference]: Finished difference. Result has 91 places, 94 transitions, 204 flow [2023-11-23 16:10:46,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=91, PETRI_TRANSITIONS=94} [2023-11-23 16:10:46,010 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -21 predicate places. [2023-11-23 16:10:46,010 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 94 transitions, 204 flow [2023-11-23 16:10:46,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:10:46,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:46,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:46,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 16:10:46,011 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-23 16:10:46,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:46,011 INFO L85 PathProgramCache]: Analyzing trace with hash -272176079, now seen corresponding path program 1 times [2023-11-23 16:10:46,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:46,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143645730] [2023-11-23 16:10:46,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:46,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:46,261 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 16:10:46,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:46,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143645730] [2023-11-23 16:10:46,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143645730] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:10:46,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876570359] [2023-11-23 16:10:46,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:46,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:10:46,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:10:46,264 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 16:10:46,277 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 16:10:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:46,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 16:10:46,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:10:46,987 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 16:10:46,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:10:47,013 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 16:10:47,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876570359] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:10:47,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:10:47,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-11-23 16:10:47,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522796862] [2023-11-23 16:10:47,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:10:47,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 16:10:47,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:47,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 16:10:47,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-11-23 16:10:47,015 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 133 [2023-11-23 16:10:47,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 94 transitions, 204 flow. Second operand has 8 states, 8 states have (on average 39.75) internal successors, (318), 8 states have internal predecessors, (318), 0 states have call successors, (0), 0 states 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 16:10:47,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:47,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 133 [2023-11-23 16:10:47,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:47,347 INFO L124 PetriNetUnfolderBase]: 144/394 cut-off events. [2023-11-23 16:10:47,347 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-23 16:10:47,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 394 events. 144/394 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1552 event pairs, 132 based on Foata normal form. 0/367 useless extension candidates. Maximal degree in co-relation 737. Up to 295 conditions per place. [2023-11-23 16:10:47,349 INFO L140 encePairwiseOnDemand]: 127/133 looper letters, 60 selfloop transitions, 8 changer transitions 0/99 dead transitions. [2023-11-23 16:10:47,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 99 transitions, 356 flow [2023-11-23 16:10:47,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 16:10:47,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 16:10:47,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 295 transitions. [2023-11-23 16:10:47,350 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36967418546365916 [2023-11-23 16:10:47,350 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 295 transitions. [2023-11-23 16:10:47,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 295 transitions. [2023-11-23 16:10:47,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:47,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 295 transitions. [2023-11-23 16:10:47,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 49.166666666666664) internal successors, (295), 6 states have internal predecessors, (295), 0 states have call successors, (0), 0 states 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 16:10:47,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states 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 16:10:47,352 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states 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 16:10:47,353 INFO L175 Difference]: Start difference. First operand has 91 places, 94 transitions, 204 flow. Second operand 6 states and 295 transitions. [2023-11-23 16:10:47,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 99 transitions, 356 flow [2023-11-23 16:10:47,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 99 transitions, 352 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-23 16:10:47,354 INFO L231 Difference]: Finished difference. Result has 98 places, 99 transitions, 256 flow [2023-11-23 16:10:47,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=256, PETRI_PLACES=98, PETRI_TRANSITIONS=99} [2023-11-23 16:10:47,355 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, -14 predicate places. [2023-11-23 16:10:47,355 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 99 transitions, 256 flow [2023-11-23 16:10:47,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 39.75) internal successors, (318), 8 states have internal predecessors, (318), 0 states have call successors, (0), 0 states 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 16:10:47,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:47,356 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:47,373 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 16:10:47,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:10:47,574 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-23 16:10:47,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:47,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1549311033, now seen corresponding path program 2 times [2023-11-23 16:10:47,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:47,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735783439] [2023-11-23 16:10:47,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:47,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:48,006 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 16:10:48,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:48,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735783439] [2023-11-23 16:10:48,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735783439] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:10:48,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659102727] [2023-11-23 16:10:48,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 16:10:48,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:10:48,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:10:48,010 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 16:10:48,038 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 16:10:48,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 16:10:48,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:10:48,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 16:10:48,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:10:48,775 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 16:10:48,775 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:10:48,846 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 16:10:48,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659102727] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:10:48,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:10:48,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-11-23 16:10:48,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476335937] [2023-11-23 16:10:48,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:10:48,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 16:10:48,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:48,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 16:10:48,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-11-23 16:10:48,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 133 [2023-11-23 16:10:48,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 99 transitions, 256 flow. Second operand has 15 states, 15 states have (on average 38.93333333333333) internal successors, (584), 15 states have internal predecessors, (584), 0 states have call successors, (0), 0 states 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 16:10:48,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:48,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 133 [2023-11-23 16:10:48,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:10:49,978 INFO L124 PetriNetUnfolderBase]: 144/403 cut-off events. [2023-11-23 16:10:49,979 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-11-23 16:10:49,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 403 events. 144/403 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1555 event pairs, 132 based on Foata normal form. 9/387 useless extension candidates. Maximal degree in co-relation 788. Up to 295 conditions per place. [2023-11-23 16:10:49,981 INFO L140 encePairwiseOnDemand]: 127/133 looper letters, 60 selfloop transitions, 17 changer transitions 0/108 dead transitions. [2023-11-23 16:10:49,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 108 transitions, 458 flow [2023-11-23 16:10:49,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 16:10:49,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-23 16:10:49,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 530 transitions. [2023-11-23 16:10:49,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33208020050125314 [2023-11-23 16:10:49,983 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 530 transitions. [2023-11-23 16:10:49,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 530 transitions. [2023-11-23 16:10:49,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:10:49,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 530 transitions. [2023-11-23 16:10:49,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 44.166666666666664) internal successors, (530), 12 states have internal predecessors, (530), 0 states have call successors, (0), 0 states 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 16:10:49,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:10:49,988 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states 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 16:10:49,988 INFO L175 Difference]: Start difference. First operand has 98 places, 99 transitions, 256 flow. Second operand 12 states and 530 transitions. [2023-11-23 16:10:49,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 108 transitions, 458 flow [2023-11-23 16:10:49,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 108 transitions, 448 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-11-23 16:10:49,992 INFO L231 Difference]: Finished difference. Result has 114 places, 108 transitions, 372 flow [2023-11-23 16:10:49,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=372, PETRI_PLACES=114, PETRI_TRANSITIONS=108} [2023-11-23 16:10:49,993 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, 2 predicate places. [2023-11-23 16:10:49,993 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 108 transitions, 372 flow [2023-11-23 16:10:49,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 38.93333333333333) internal successors, (584), 15 states have internal predecessors, (584), 0 states have call successors, (0), 0 states 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 16:10:49,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:10:49,994 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:10:50,016 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-23 16:10:50,203 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,SelfDestructingSolverStorable8 [2023-11-23 16:10:50,203 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-23 16:10:50,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:10:50,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1786096519, now seen corresponding path program 3 times [2023-11-23 16:10:50,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:10:50,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095121715] [2023-11-23 16:10:50,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:10:50,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:10:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:10:50,906 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 16:10:50,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:10:50,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095121715] [2023-11-23 16:10:50,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095121715] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:10:50,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545391909] [2023-11-23 16:10:50,907 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 16:10:50,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:10:50,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:10:50,908 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 16:10:50,910 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 16:10:56,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-23 16:10:56,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:10:56,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-23 16:10:56,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:10:56,489 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 16:10:56,489 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:10:56,754 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 16:10:56,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545391909] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:10:56,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:10:56,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2023-11-23 16:10:56,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363206040] [2023-11-23 16:10:56,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:10:56,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-23 16:10:56,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:10:56,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-23 16:10:56,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=676, Unknown=0, NotChecked=0, Total=992 [2023-11-23 16:10:56,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 133 [2023-11-23 16:10:56,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 108 transitions, 372 flow. Second operand has 32 states, 32 states have (on average 38.4375) internal successors, (1230), 32 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states 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 16:10:56,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:10:56,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 133 [2023-11-23 16:10:56,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:11:01,230 INFO L124 PetriNetUnfolderBase]: 144/421 cut-off events. [2023-11-23 16:11:01,230 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-11-23 16:11:01,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 921 conditions, 421 events. 144/421 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1555 event pairs, 132 based on Foata normal form. 18/414 useless extension candidates. Maximal degree in co-relation 906. Up to 295 conditions per place. [2023-11-23 16:11:01,236 INFO L140 encePairwiseOnDemand]: 127/133 looper letters, 60 selfloop transitions, 35 changer transitions 0/126 dead transitions. [2023-11-23 16:11:01,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 126 transitions, 694 flow [2023-11-23 16:11:01,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 16:11:01,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-23 16:11:01,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1001 transitions. [2023-11-23 16:11:01,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31359649122807015 [2023-11-23 16:11:01,255 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 1001 transitions. [2023-11-23 16:11:01,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 1001 transitions. [2023-11-23 16:11:01,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:11:01,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 1001 transitions. [2023-11-23 16:11:01,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 41.708333333333336) internal successors, (1001), 24 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states 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 16:11:01,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 133.0) internal successors, (3325), 25 states have internal predecessors, (3325), 0 states have call successors, (0), 0 states 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 16:11:01,279 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 133.0) internal successors, (3325), 25 states have internal predecessors, (3325), 0 states have call successors, (0), 0 states 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 16:11:01,279 INFO L175 Difference]: Start difference. First operand has 114 places, 108 transitions, 372 flow. Second operand 24 states and 1001 transitions. [2023-11-23 16:11:01,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 126 transitions, 694 flow [2023-11-23 16:11:01,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 126 transitions, 618 flow, removed 36 selfloop flow, removed 2 redundant places. [2023-11-23 16:11:01,286 INFO L231 Difference]: Finished difference. Result has 147 places, 126 transitions, 584 flow [2023-11-23 16:11:01,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=584, PETRI_PLACES=147, PETRI_TRANSITIONS=126} [2023-11-23 16:11:01,287 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, 35 predicate places. [2023-11-23 16:11:01,296 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 126 transitions, 584 flow [2023-11-23 16:11:01,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 38.4375) internal successors, (1230), 32 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states 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 16:11:01,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:11:01,297 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:11:01,308 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 16:11:01,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:11:01,508 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-23 16:11:01,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:11:01,508 INFO L85 PathProgramCache]: Analyzing trace with hash 549440263, now seen corresponding path program 4 times [2023-11-23 16:11:01,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:11:01,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092311491] [2023-11-23 16:11:01,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:11:01,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:11:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:11:02,881 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 16:11:02,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:11:02,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092311491] [2023-11-23 16:11:02,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092311491] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:11:02,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951862722] [2023-11-23 16:11:02,882 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 16:11:02,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:11:02,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:11:02,897 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 16:11:02,914 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 16:11:04,816 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 16:11:04,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:11:04,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-23 16:11:04,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:11:05,467 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 16:11:05,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:11:06,441 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 16:11:06,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951862722] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:11:06,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:11:06,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 69 [2023-11-23 16:11:06,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750358623] [2023-11-23 16:11:06,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:11:06,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2023-11-23 16:11:06,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:11:06,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2023-11-23 16:11:06,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1202, Invalid=3628, Unknown=0, NotChecked=0, Total=4830 [2023-11-23 16:11:06,452 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 133 [2023-11-23 16:11:06,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 126 transitions, 584 flow. Second operand has 70 states, 70 states have (on average 38.2) internal successors, (2674), 70 states have internal predecessors, (2674), 0 states have call successors, (0), 0 states 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 16:11:06,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 16:11:06,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 133 [2023-11-23 16:11:06,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 16:12:51,743 INFO L124 PetriNetUnfolderBase]: 144/450 cut-off events. [2023-11-23 16:12:51,744 INFO L125 PetriNetUnfolderBase]: For 5588/5588 co-relation queries the response was YES. [2023-11-23 16:12:51,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1114 conditions, 450 events. 144/450 cut-off events. For 5588/5588 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1554 event pairs, 132 based on Foata normal form. 29/454 useless extension candidates. Maximal degree in co-relation 1086. Up to 295 conditions per place. [2023-11-23 16:12:51,746 INFO L140 encePairwiseOnDemand]: 127/133 looper letters, 60 selfloop transitions, 64 changer transitions 0/155 dead transitions. [2023-11-23 16:12:51,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 155 transitions, 1054 flow [2023-11-23 16:12:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-23 16:12:51,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-11-23 16:12:51,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 1929 transitions. [2023-11-23 16:12:51,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30216165413533835 [2023-11-23 16:12:51,752 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 1929 transitions. [2023-11-23 16:12:51,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 1929 transitions. [2023-11-23 16:12:51,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 16:12:51,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 1929 transitions. [2023-11-23 16:12:51,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 40.1875) internal successors, (1929), 48 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states 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 16:12:51,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 133.0) internal successors, (6517), 49 states have internal predecessors, (6517), 0 states have call successors, (0), 0 states 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 16:12:51,764 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 133.0) internal successors, (6517), 49 states have internal predecessors, (6517), 0 states have call successors, (0), 0 states 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 16:12:51,764 INFO L175 Difference]: Start difference. First operand has 147 places, 126 transitions, 584 flow. Second operand 48 states and 1929 transitions. [2023-11-23 16:12:51,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 155 transitions, 1054 flow [2023-11-23 16:12:51,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 155 transitions, 912 flow, removed 64 selfloop flow, removed 6 redundant places. [2023-11-23 16:12:51,770 INFO L231 Difference]: Finished difference. Result has 212 places, 155 transitions, 934 flow [2023-11-23 16:12:51,771 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=934, PETRI_PLACES=212, PETRI_TRANSITIONS=155} [2023-11-23 16:12:51,771 INFO L281 CegarLoopForPetriNet]: 112 programPoint places, 100 predicate places. [2023-11-23 16:12:51,771 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 155 transitions, 934 flow [2023-11-23 16:12:51,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 38.2) internal successors, (2674), 70 states have internal predecessors, (2674), 0 states have call successors, (0), 0 states 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 16:12:51,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 16:12:51,772 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:12:51,798 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 16:12:51,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:12:51,985 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_pc8736x_gpio_changeErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-23 16:12:51,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:12:51,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1055241721, now seen corresponding path program 5 times [2023-11-23 16:12:51,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:12:51,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93760361] [2023-11-23 16:12:51,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:12:51,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:12:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:12:55,102 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 16:12:55,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:12:55,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93760361] [2023-11-23 16:12:55,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93760361] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:12:55,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675314697] [2023-11-23 16:12:55,102 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 16:12:55,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:12:55,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:12:55,103 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 16:12:55,104 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