./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/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-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 51c838f928ac384d8fdc78da2570bfd8622730962319208ac7b8c7e3db94de0f --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 01:30:01,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:30:01,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:30:01,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:30:01,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:30:01,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:30:01,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:30:01,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:30:01,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:30:01,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:30:01,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:30:01,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:30:01,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:30:01,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:30:01,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:30:01,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:30:01,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:30:01,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:30:01,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:30:01,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:30:01,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:30:01,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:30:01,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:30:01,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:30:01,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:30:01,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:30:01,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:30:01,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:30:01,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:30:01,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:30:01,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:30:01,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:30:01,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:30:01,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:30:01,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:30:01,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:30:01,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:30:01,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:30:01,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:30:01,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:30:01,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:30:01,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:30:01,158 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:30:01,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:30:01,160 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:30:01,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:30:01,161 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:30:01,161 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:30:01,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:30:01,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:30:01,162 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:30:01,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:30:01,163 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:30:01,163 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:30:01,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:30:01,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:30:01,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:30:01,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:30:01,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:30:01,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:30:01,165 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:30:01,165 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:30:01,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:30:01,165 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:30:01,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:30:01,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:30:01,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:30:01,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:30:01,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:30:01,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:30:01,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:30:01,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:30:01,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:30:01,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:30:01,168 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:30:01,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:30:01,168 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:30:01,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:30:01,168 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:30:01,169 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51c838f928ac384d8fdc78da2570bfd8622730962319208ac7b8c7e3db94de0f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:30:01,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:30:01,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:30:01,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:30:01,509 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:30:01,509 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:30:01,511 INFO L432 ainManager$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 [2023-08-29 01:30:02,788 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:30:03,303 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:30:03,303 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-08-29 01:30:03,341 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24e389d09/2bf49120894346f3a874f795f598fdc1/FLAG21b28848a [2023-08-29 01:30:03,364 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24e389d09/2bf49120894346f3a874f795f598fdc1 [2023-08-29 01:30:03,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:30:03,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:30:03,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:30:03,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:30:03,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:30:03,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:30:03" (1/1) ... [2023-08-29 01:30:03,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66698765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:30:03, skipping insertion in model container [2023-08-29 01:30:03,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:30:03" (1/1) ... [2023-08-29 01:30:03,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:30:03,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:30:03,747 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i[5469,5482] [2023-08-29 01:30:06,390 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-29 01:30:06,933 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-29 01:30:06,933 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-29 01:30:06,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:30:07,000 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:30:07,013 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i[5469,5482] [2023-08-29 01:30:07,349 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-29 01:30:07,401 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-29 01:30:07,402 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-29 01:30:07,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:30:08,025 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:30:08,025 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:30:08,026 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:30:08,026 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:30:08,026 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:30:08,026 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:30:08,026 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:30:08,033 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:30:08,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:30:08 WrapperNode [2023-08-29 01:30:08,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:30:08,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:30:08,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:30:08,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:30:08,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:30:08" (1/1) ... [2023-08-29 01:30:08,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:30:08" (1/1) ... [2023-08-29 01:30:08,313 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 54, statements flattened = 1005 [2023-08-29 01:30:08,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:30:08,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:30:08,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:30:08,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:30:08,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:30:08" (1/1) ... [2023-08-29 01:30:08,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:30:08" (1/1) ... [2023-08-29 01:30:08,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:30:08" (1/1) ... [2023-08-29 01:30:08,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:30:08" (1/1) ... [2023-08-29 01:30:08,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:30:08" (1/1) ... [2023-08-29 01:30:08,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:30:08" (1/1) ... [2023-08-29 01:30:08,415 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:30:08" (1/1) ... [2023-08-29 01:30:08,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:30:08" (1/1) ... [2023-08-29 01:30:08,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:30:08,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:30:08,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:30:08,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:30:08,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:30:08" (1/1) ... [2023-08-29 01:30:08,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:30:08,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:30:08,458 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) [2023-08-29 01:30:08,477 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 [2023-08-29 01:30:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 01:30:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 01:30:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:30:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 01:30:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-29 01:30:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-29 01:30:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-29 01:30:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-29 01:30:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:30:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:30:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-29 01:30:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:30:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 01:30:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:30:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:30:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-29 01:30:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:30:08,491 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 01:30:09,048 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:30:09,050 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:30:10,043 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:30:10,061 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:30:10,061 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-08-29 01:30:10,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:30:10 BoogieIcfgContainer [2023-08-29 01:30:10,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:30:10,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:30:10,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:30:10,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:30:10,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:30:03" (1/3) ... [2023-08-29 01:30:10,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227804f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:30:10, skipping insertion in model container [2023-08-29 01:30:10,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:30:08" (2/3) ... [2023-08-29 01:30:10,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227804f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:30:10, skipping insertion in model container [2023-08-29 01:30:10,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:30:10" (3/3) ... [2023-08-29 01:30:10,075 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-08-29 01:30:10,082 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:30:10,090 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:30:10,090 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2023-08-29 01:30:10,090 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:30:10,232 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 01:30:10,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1107 places, 1154 transitions, 2324 flow [2023-08-29 01:30:10,644 INFO L130 PetriNetUnfolder]: 54/1152 cut-off events. [2023-08-29 01:30:10,644 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 01:30:10,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1161 conditions, 1152 events. 54/1152 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1682 event pairs, 0 based on Foata normal form. 0/1011 useless extension candidates. Maximal degree in co-relation 932. Up to 9 conditions per place. [2023-08-29 01:30:10,657 INFO L82 GeneralOperation]: Start removeDead. Operand has 1107 places, 1154 transitions, 2324 flow [2023-08-29 01:30:10,674 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1097 places, 1144 transitions, 2297 flow [2023-08-29 01:30:10,677 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:30:10,689 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1097 places, 1144 transitions, 2297 flow [2023-08-29 01:30:10,695 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1097 places, 1144 transitions, 2297 flow [2023-08-29 01:30:10,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1097 places, 1144 transitions, 2297 flow [2023-08-29 01:30:10,944 INFO L130 PetriNetUnfolder]: 54/1144 cut-off events. [2023-08-29 01:30:10,945 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 01:30:10,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1152 conditions, 1144 events. 54/1144 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1599 event pairs, 0 based on Foata normal form. 0/1003 useless extension candidates. Maximal degree in co-relation 932. Up to 9 conditions per place. [2023-08-29 01:30:10,993 INFO L119 LiptonReduction]: Number of co-enabled transitions 24660 [2023-08-29 01:32:01,150 WARN L222 SmtUtils]: Spent 10.58s on a formula simplification. DAG size of input: 313 DAG size of output: 306 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 01:32:31,249 WARN L222 SmtUtils]: Spent 26.74s on a formula simplification that was a NOOP. DAG size: 573 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 01:32:53,113 WARN L222 SmtUtils]: Spent 21.85s on a formula simplification that was a NOOP. DAG size: 505 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 01:33:10,158 WARN L222 SmtUtils]: Spent 17.04s on a formula simplification that was a NOOP. DAG size: 573 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 01:33:24,142 WARN L222 SmtUtils]: Spent 13.97s on a formula simplification that was a NOOP. DAG size: 505 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 01:35:45,243 WARN L222 SmtUtils]: Spent 2.35m on a formula simplification. DAG size of input: 609 DAG size of output: 607 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 01:36:48,777 WARN L222 SmtUtils]: Spent 1.06m on a formula simplification that was a NOOP. DAG size: 585 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 01:37:38,298 WARN L222 SmtUtils]: Spent 49.52s on a formula simplification. DAG size of input: 612 DAG size of output: 610 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 01:38:32,000 WARN L222 SmtUtils]: Spent 53.69s on a formula simplification that was a NOOP. DAG size: 588 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 01:38:32,038 INFO L134 LiptonReduction]: Checked pairs total: 94475 [2023-08-29 01:38:32,038 INFO L136 LiptonReduction]: Total number of compositions: 1371 [2023-08-29 01:38:32,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 01:38:32,055 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=LoopsAndPotentialCycles, 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;@32357027, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:38:32,055 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2023-08-29 01:38:32,057 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 01:38:32,057 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:38:32,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:38:32,058 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 01:38:32,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:38:32,062 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:38:32,062 INFO L85 PathProgramCache]: Analyzing trace with hash 4157, now seen corresponding path program 1 times [2023-08-29 01:38:32,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:38:32,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141765857] [2023-08-29 01:38:32,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:38:32,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:38:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:38:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:38:32,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:38:32,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141765857] [2023-08-29 01:38:32,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141765857] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:38:32,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:38:32,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 01:38:32,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954423452] [2023-08-29 01:38:32,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:38:32,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 01:38:32,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:38:32,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 01:38:32,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 01:38:32,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1116 out of 2525 [2023-08-29 01:38:32,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 180 transitions, 369 flow. Second operand has 2 states, 2 states have (on average 1116.5) internal successors, (2233), 2 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:32,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:38:32,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1116 of 2525 [2023-08-29 01:38:32,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:38:33,244 INFO L130 PetriNetUnfolder]: 449/1254 cut-off events. [2023-08-29 01:38:33,245 INFO L131 PetriNetUnfolder]: For 66/105 co-relation queries the response was YES. [2023-08-29 01:38:33,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2108 conditions, 1254 events. 449/1254 cut-off events. For 66/105 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7164 event pairs, 438 based on Foata normal form. 31/1250 useless extension candidates. Maximal degree in co-relation 1767. Up to 814 conditions per place. [2023-08-29 01:38:33,254 INFO L137 encePairwiseOnDemand]: 2442/2525 looper letters, 57 selfloop transitions, 0 changer transitions 0/97 dead transitions. [2023-08-29 01:38:33,255 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 97 transitions, 317 flow [2023-08-29 01:38:33,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 01:38:33,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 01:38:33,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2372 transitions. [2023-08-29 01:38:33,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4697029702970297 [2023-08-29 01:38:33,279 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2372 transitions. [2023-08-29 01:38:33,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2372 transitions. [2023-08-29 01:38:33,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:38:33,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2372 transitions. [2023-08-29 01:38:33,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1186.0) internal successors, (2372), 2 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:33,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2525.0) internal successors, (7575), 3 states have internal predecessors, (7575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:33,312 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2525.0) internal successors, (7575), 3 states have internal predecessors, (7575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:33,314 INFO L175 Difference]: Start difference. First operand has 164 places, 180 transitions, 369 flow. Second operand 2 states and 2372 transitions. [2023-08-29 01:38:33,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 97 transitions, 317 flow [2023-08-29 01:38:33,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 97 transitions, 312 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 01:38:33,321 INFO L231 Difference]: Finished difference. Result has 91 places, 97 transitions, 198 flow [2023-08-29 01:38:33,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=198, PETRI_PLACES=91, PETRI_TRANSITIONS=97} [2023-08-29 01:38:33,325 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -73 predicate places. [2023-08-29 01:38:33,326 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 97 transitions, 198 flow [2023-08-29 01:38:33,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1116.5) internal successors, (2233), 2 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:33,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:38:33,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 01:38:33,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 01:38:33,328 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:38:33,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:38:33,335 INFO L85 PathProgramCache]: Analyzing trace with hash 4171146, now seen corresponding path program 1 times [2023-08-29 01:38:33,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:38:33,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091082137] [2023-08-29 01:38:33,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:38:33,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:38:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:38:33,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:38:33,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:38:33,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091082137] [2023-08-29 01:38:33,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091082137] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:38:33,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:38:33,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:38:33,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622650444] [2023-08-29 01:38:33,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:38:33,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:38:33,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:38:33,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:38:33,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:38:33,714 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1097 out of 2525 [2023-08-29 01:38:33,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 97 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 1098.0) internal successors, (3294), 3 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:33,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:38:33,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1097 of 2525 [2023-08-29 01:38:33,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:38:34,204 INFO L130 PetriNetUnfolder]: 449/1252 cut-off events. [2023-08-29 01:38:34,205 INFO L131 PetriNetUnfolder]: For 20/59 co-relation queries the response was YES. [2023-08-29 01:38:34,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2083 conditions, 1252 events. 449/1252 cut-off events. For 20/59 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7156 event pairs, 438 based on Foata normal form. 0/1217 useless extension candidates. Maximal degree in co-relation 2080. Up to 811 conditions per place. [2023-08-29 01:38:34,212 INFO L137 encePairwiseOnDemand]: 2520/2525 looper letters, 54 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2023-08-29 01:38:34,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 95 transitions, 308 flow [2023-08-29 01:38:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:38:34,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:38:34,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3350 transitions. [2023-08-29 01:38:34,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44224422442244227 [2023-08-29 01:38:34,221 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3350 transitions. [2023-08-29 01:38:34,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3350 transitions. [2023-08-29 01:38:34,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:38:34,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3350 transitions. [2023-08-29 01:38:34,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1116.6666666666667) internal successors, (3350), 3 states have internal predecessors, (3350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:34,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:34,248 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:34,248 INFO L175 Difference]: Start difference. First operand has 91 places, 97 transitions, 198 flow. Second operand 3 states and 3350 transitions. [2023-08-29 01:38:34,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 95 transitions, 308 flow [2023-08-29 01:38:34,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 95 transitions, 308 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 01:38:34,250 INFO L231 Difference]: Finished difference. Result has 91 places, 95 transitions, 200 flow [2023-08-29 01:38:34,251 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=91, PETRI_TRANSITIONS=95} [2023-08-29 01:38:34,252 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -73 predicate places. [2023-08-29 01:38:34,252 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 95 transitions, 200 flow [2023-08-29 01:38:34,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1098.0) internal successors, (3294), 3 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:34,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:38:34,254 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 01:38:34,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 01:38:34,255 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:38:34,255 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:38:34,255 INFO L85 PathProgramCache]: Analyzing trace with hash -284425005, now seen corresponding path program 1 times [2023-08-29 01:38:34,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:38:34,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908159788] [2023-08-29 01:38:34,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:38:34,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:38:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:38:34,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:38:34,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:38:34,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908159788] [2023-08-29 01:38:34,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908159788] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:38:34,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:38:34,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:38:34,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219837847] [2023-08-29 01:38:34,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:38:34,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:38:34,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:38:34,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:38:34,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:38:34,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1112 out of 2525 [2023-08-29 01:38:34,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 95 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 1113.3333333333333) internal successors, (3340), 3 states have internal predecessors, (3340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:34,549 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:38:34,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1112 of 2525 [2023-08-29 01:38:34,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:38:34,954 INFO L130 PetriNetUnfolder]: 447/1249 cut-off events. [2023-08-29 01:38:34,954 INFO L131 PetriNetUnfolder]: For 20/59 co-relation queries the response was YES. [2023-08-29 01:38:34,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2080 conditions, 1249 events. 447/1249 cut-off events. For 20/59 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7149 event pairs, 438 based on Foata normal form. 0/1217 useless extension candidates. Maximal degree in co-relation 2076. Up to 810 conditions per place. [2023-08-29 01:38:34,961 INFO L137 encePairwiseOnDemand]: 2522/2525 looper letters, 53 selfloop transitions, 1 changer transitions 0/92 dead transitions. [2023-08-29 01:38:34,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 92 transitions, 300 flow [2023-08-29 01:38:34,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:38:34,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:38:34,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3392 transitions. [2023-08-29 01:38:34,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4477887788778878 [2023-08-29 01:38:34,969 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3392 transitions. [2023-08-29 01:38:34,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3392 transitions. [2023-08-29 01:38:34,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:38:34,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3392 transitions. [2023-08-29 01:38:34,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1130.6666666666667) internal successors, (3392), 3 states have internal predecessors, (3392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:34,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:34,992 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:34,993 INFO L175 Difference]: Start difference. First operand has 91 places, 95 transitions, 200 flow. Second operand 3 states and 3392 transitions. [2023-08-29 01:38:34,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 92 transitions, 300 flow [2023-08-29 01:38:34,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 298 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:38:34,995 INFO L231 Difference]: Finished difference. Result has 91 places, 92 transitions, 192 flow [2023-08-29 01:38:34,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=192, PETRI_PLACES=91, PETRI_TRANSITIONS=92} [2023-08-29 01:38:34,996 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -73 predicate places. [2023-08-29 01:38:34,996 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 92 transitions, 192 flow [2023-08-29 01:38:34,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1113.3333333333333) internal successors, (3340), 3 states have internal predecessors, (3340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:34,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:38:34,998 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 01:38:34,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 01:38:34,998 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:38:34,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:38:34,999 INFO L85 PathProgramCache]: Analyzing trace with hash -216915518, now seen corresponding path program 1 times [2023-08-29 01:38:34,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:38:34,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078053383] [2023-08-29 01:38:34,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:38:34,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:38:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:38:35,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:38:35,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:38:35,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078053383] [2023-08-29 01:38:35,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078053383] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:38:35,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:38:35,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:38:35,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086697593] [2023-08-29 01:38:35,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:38:35,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:38:35,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:38:35,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:38:35,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:38:35,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1106 out of 2525 [2023-08-29 01:38:35,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 92 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 1108.0) internal successors, (3324), 3 states have internal predecessors, (3324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:35,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:38:35,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1106 of 2525 [2023-08-29 01:38:35,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:38:35,567 INFO L130 PetriNetUnfolder]: 447/1238 cut-off events. [2023-08-29 01:38:35,568 INFO L131 PetriNetUnfolder]: For 20/59 co-relation queries the response was YES. [2023-08-29 01:38:35,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2070 conditions, 1238 events. 447/1238 cut-off events. For 20/59 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7009 event pairs, 438 based on Foata normal form. 0/1205 useless extension candidates. Maximal degree in co-relation 2066. Up to 810 conditions per place. [2023-08-29 01:38:35,574 INFO L137 encePairwiseOnDemand]: 2522/2525 looper letters, 53 selfloop transitions, 1 changer transitions 0/90 dead transitions. [2023-08-29 01:38:35,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 90 transitions, 296 flow [2023-08-29 01:38:35,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:38:35,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:38:35,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3374 transitions. [2023-08-29 01:38:35,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44541254125412544 [2023-08-29 01:38:35,582 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3374 transitions. [2023-08-29 01:38:35,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3374 transitions. [2023-08-29 01:38:35,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:38:35,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3374 transitions. [2023-08-29 01:38:35,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1124.6666666666667) internal successors, (3374), 3 states have internal predecessors, (3374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:35,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:35,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:35,602 INFO L175 Difference]: Start difference. First operand has 91 places, 92 transitions, 192 flow. Second operand 3 states and 3374 transitions. [2023-08-29 01:38:35,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 90 transitions, 296 flow [2023-08-29 01:38:35,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 90 transitions, 295 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:38:35,605 INFO L231 Difference]: Finished difference. Result has 90 places, 90 transitions, 189 flow [2023-08-29 01:38:35,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=90, PETRI_TRANSITIONS=90} [2023-08-29 01:38:35,605 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -74 predicate places. [2023-08-29 01:38:35,606 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 90 transitions, 189 flow [2023-08-29 01:38:35,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1108.0) internal successors, (3324), 3 states have internal predecessors, (3324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:35,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:38:35,607 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:38:35,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 01:38:35,607 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:38:35,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:38:35,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1831184030, now seen corresponding path program 1 times [2023-08-29 01:38:35,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:38:35,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421006775] [2023-08-29 01:38:35,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:38:35,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:38:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:38:35,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:38:35,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:38:35,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421006775] [2023-08-29 01:38:35,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421006775] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:38:35,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:38:35,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:38:35,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251372656] [2023-08-29 01:38:35,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:38:35,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:38:35,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:38:35,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:38:35,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:38:36,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1094 out of 2525 [2023-08-29 01:38:36,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 90 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 1097.0) internal successors, (3291), 3 states have internal predecessors, (3291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:36,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:38:36,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1094 of 2525 [2023-08-29 01:38:36,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:38:36,981 INFO L130 PetriNetUnfolder]: 641/1490 cut-off events. [2023-08-29 01:38:36,981 INFO L131 PetriNetUnfolder]: For 5/25 co-relation queries the response was YES. [2023-08-29 01:38:36,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2673 conditions, 1490 events. 641/1490 cut-off events. For 5/25 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7787 event pairs, 249 based on Foata normal form. 1/1425 useless extension candidates. Maximal degree in co-relation 2669. Up to 629 conditions per place. [2023-08-29 01:38:36,990 INFO L137 encePairwiseOnDemand]: 2518/2525 looper letters, 82 selfloop transitions, 5 changer transitions 0/119 dead transitions. [2023-08-29 01:38:36,990 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 119 transitions, 424 flow [2023-08-29 01:38:36,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:38:36,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:38:36,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3371 transitions. [2023-08-29 01:38:36,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44501650165016504 [2023-08-29 01:38:36,998 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3371 transitions. [2023-08-29 01:38:36,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3371 transitions. [2023-08-29 01:38:37,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:38:37,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3371 transitions. [2023-08-29 01:38:37,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1123.6666666666667) internal successors, (3371), 3 states have internal predecessors, (3371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:37,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:37,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:37,017 INFO L175 Difference]: Start difference. First operand has 90 places, 90 transitions, 189 flow. Second operand 3 states and 3371 transitions. [2023-08-29 01:38:37,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 119 transitions, 424 flow [2023-08-29 01:38:37,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 119 transitions, 423 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:38:37,019 INFO L231 Difference]: Finished difference. Result has 93 places, 94 transitions, 228 flow [2023-08-29 01:38:37,020 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=93, PETRI_TRANSITIONS=94} [2023-08-29 01:38:37,020 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -71 predicate places. [2023-08-29 01:38:37,021 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 94 transitions, 228 flow [2023-08-29 01:38:37,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1097.0) internal successors, (3291), 3 states have internal predecessors, (3291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:37,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:38:37,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:38:37,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 01:38:37,022 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:38:37,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:38:37,023 INFO L85 PathProgramCache]: Analyzing trace with hash 999081838, now seen corresponding path program 1 times [2023-08-29 01:38:37,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:38:37,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122640098] [2023-08-29 01:38:37,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:38:37,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:38:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:38:37,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:38:37,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:38:37,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122640098] [2023-08-29 01:38:37,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122640098] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:38:37,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:38:37,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:38:37,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323809298] [2023-08-29 01:38:37,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:38:37,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:38:37,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:38:37,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:38:37,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:38:37,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1094 out of 2525 [2023-08-29 01:38:37,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 94 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:37,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:38:37,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1094 of 2525 [2023-08-29 01:38:37,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:38:38,286 INFO L130 PetriNetUnfolder]: 493/1283 cut-off events. [2023-08-29 01:38:38,286 INFO L131 PetriNetUnfolder]: For 148/264 co-relation queries the response was YES. [2023-08-29 01:38:38,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2389 conditions, 1283 events. 493/1283 cut-off events. For 148/264 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6962 event pairs, 172 based on Foata normal form. 38/1296 useless extension candidates. Maximal degree in co-relation 2384. Up to 518 conditions per place. [2023-08-29 01:38:38,294 INFO L137 encePairwiseOnDemand]: 2521/2525 looper letters, 63 selfloop transitions, 3 changer transitions 0/101 dead transitions. [2023-08-29 01:38:38,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 101 transitions, 379 flow [2023-08-29 01:38:38,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:38:38,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:38:38,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3347 transitions. [2023-08-29 01:38:38,302 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44184818481848187 [2023-08-29 01:38:38,302 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3347 transitions. [2023-08-29 01:38:38,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3347 transitions. [2023-08-29 01:38:38,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:38:38,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3347 transitions. [2023-08-29 01:38:38,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1115.6666666666667) internal successors, (3347), 3 states have internal predecessors, (3347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:38,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:38,320 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:38,320 INFO L175 Difference]: Start difference. First operand has 93 places, 94 transitions, 228 flow. Second operand 3 states and 3347 transitions. [2023-08-29 01:38:38,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 101 transitions, 379 flow [2023-08-29 01:38:38,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 101 transitions, 369 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:38:38,323 INFO L231 Difference]: Finished difference. Result has 91 places, 92 transitions, 220 flow [2023-08-29 01:38:38,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=91, PETRI_TRANSITIONS=92} [2023-08-29 01:38:38,324 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -73 predicate places. [2023-08-29 01:38:38,324 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 92 transitions, 220 flow [2023-08-29 01:38:38,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:38,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:38:38,325 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:38:38,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 01:38:38,326 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:38:38,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:38:38,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1968932016, now seen corresponding path program 1 times [2023-08-29 01:38:38,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:38:38,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196974168] [2023-08-29 01:38:38,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:38:38,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:38:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:38:39,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:38:39,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:38:39,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196974168] [2023-08-29 01:38:39,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196974168] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:38:39,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:38:39,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:38:39,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440381308] [2023-08-29 01:38:39,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:38:39,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:38:39,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:38:39,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:38:39,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:38:39,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1095 out of 2525 [2023-08-29 01:38:39,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 92 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 1097.0) internal successors, (6582), 6 states have internal predecessors, (6582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:39,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:38:39,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1095 of 2525 [2023-08-29 01:38:39,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:38:41,611 INFO L130 PetriNetUnfolder]: 2369/4509 cut-off events. [2023-08-29 01:38:41,612 INFO L131 PetriNetUnfolder]: For 602/985 co-relation queries the response was YES. [2023-08-29 01:38:41,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9124 conditions, 4509 events. 2369/4509 cut-off events. For 602/985 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 27966 event pairs, 615 based on Foata normal form. 161/4573 useless extension candidates. Maximal degree in co-relation 9119. Up to 1506 conditions per place. [2023-08-29 01:38:41,634 INFO L137 encePairwiseOnDemand]: 2518/2525 looper letters, 172 selfloop transitions, 13 changer transitions 0/214 dead transitions. [2023-08-29 01:38:41,634 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 214 transitions, 907 flow [2023-08-29 01:38:41,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:38:41,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:38:41,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6741 transitions. [2023-08-29 01:38:41,648 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44495049504950496 [2023-08-29 01:38:41,649 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6741 transitions. [2023-08-29 01:38:41,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6741 transitions. [2023-08-29 01:38:41,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:38:41,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6741 transitions. [2023-08-29 01:38:41,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1123.5) internal successors, (6741), 6 states have internal predecessors, (6741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:41,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2525.0) internal successors, (17675), 7 states have internal predecessors, (17675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:41,683 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2525.0) internal successors, (17675), 7 states have internal predecessors, (17675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:41,683 INFO L175 Difference]: Start difference. First operand has 91 places, 92 transitions, 220 flow. Second operand 6 states and 6741 transitions. [2023-08-29 01:38:41,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 214 transitions, 907 flow [2023-08-29 01:38:41,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 214 transitions, 877 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:38:41,689 INFO L231 Difference]: Finished difference. Result has 99 places, 104 transitions, 320 flow [2023-08-29 01:38:41,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=320, PETRI_PLACES=99, PETRI_TRANSITIONS=104} [2023-08-29 01:38:41,690 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -65 predicate places. [2023-08-29 01:38:41,690 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 104 transitions, 320 flow [2023-08-29 01:38:41,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1097.0) internal successors, (6582), 6 states have internal predecessors, (6582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:41,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:38:41,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:38:41,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 01:38:41,692 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr4ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:38:41,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:38:41,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1053734518, now seen corresponding path program 1 times [2023-08-29 01:38:41,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:38:41,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025269213] [2023-08-29 01:38:41,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:38:41,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:38:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:38:42,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:38:42,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:38:42,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025269213] [2023-08-29 01:38:42,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025269213] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:38:42,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:38:42,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:38:42,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113292542] [2023-08-29 01:38:42,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:38:42,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:38:42,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:38:42,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:38:42,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:38:43,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1076 out of 2525 [2023-08-29 01:38:43,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 104 transitions, 320 flow. Second operand has 6 states, 6 states have (on average 1078.8333333333333) internal successors, (6473), 6 states have internal predecessors, (6473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:43,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:38:43,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1076 of 2525 [2023-08-29 01:38:43,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:38:44,089 INFO L130 PetriNetUnfolder]: 963/2163 cut-off events. [2023-08-29 01:38:44,089 INFO L131 PetriNetUnfolder]: For 442/692 co-relation queries the response was YES. [2023-08-29 01:38:44,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4607 conditions, 2163 events. 963/2163 cut-off events. For 442/692 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 12955 event pairs, 393 based on Foata normal form. 76/2195 useless extension candidates. Maximal degree in co-relation 4598. Up to 966 conditions per place. [2023-08-29 01:38:44,106 INFO L137 encePairwiseOnDemand]: 2516/2525 looper letters, 99 selfloop transitions, 14 changer transitions 0/136 dead transitions. [2023-08-29 01:38:44,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 136 transitions, 630 flow [2023-08-29 01:38:44,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:38:44,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:38:44,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6562 transitions. [2023-08-29 01:38:44,121 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43313531353135315 [2023-08-29 01:38:44,122 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6562 transitions. [2023-08-29 01:38:44,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6562 transitions. [2023-08-29 01:38:44,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:38:44,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6562 transitions. [2023-08-29 01:38:44,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1093.6666666666667) internal successors, (6562), 6 states have internal predecessors, (6562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:44,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2525.0) internal successors, (17675), 7 states have internal predecessors, (17675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:44,154 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2525.0) internal successors, (17675), 7 states have internal predecessors, (17675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:44,155 INFO L175 Difference]: Start difference. First operand has 99 places, 104 transitions, 320 flow. Second operand 6 states and 6562 transitions. [2023-08-29 01:38:44,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 136 transitions, 630 flow [2023-08-29 01:38:44,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 136 transitions, 630 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 01:38:44,161 INFO L231 Difference]: Finished difference. Result has 100 places, 100 transitions, 340 flow [2023-08-29 01:38:44,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=340, PETRI_PLACES=100, PETRI_TRANSITIONS=100} [2023-08-29 01:38:44,163 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -64 predicate places. [2023-08-29 01:38:44,163 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 100 transitions, 340 flow [2023-08-29 01:38:44,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1078.8333333333333) internal successors, (6473), 6 states have internal predecessors, (6473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:44,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:38:44,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:38:44,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 01:38:44,166 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:38:44,166 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:38:44,166 INFO L85 PathProgramCache]: Analyzing trace with hash -2104230086, now seen corresponding path program 1 times [2023-08-29 01:38:44,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:38:44,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800669400] [2023-08-29 01:38:44,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:38:44,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:38:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:38:45,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:38:45,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:38:45,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800669400] [2023-08-29 01:38:45,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800669400] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:38:45,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:38:45,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:38:45,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071501443] [2023-08-29 01:38:45,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:38:45,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:38:45,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:38:45,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:38:45,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:38:45,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1095 out of 2525 [2023-08-29 01:38:45,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 100 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 1098.3333333333333) internal successors, (6590), 6 states have internal predecessors, (6590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:45,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:38:45,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1095 of 2525 [2023-08-29 01:38:45,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:38:47,141 INFO L130 PetriNetUnfolder]: 870/2196 cut-off events. [2023-08-29 01:38:47,141 INFO L131 PetriNetUnfolder]: For 671/873 co-relation queries the response was YES. [2023-08-29 01:38:47,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4645 conditions, 2196 events. 870/2196 cut-off events. For 671/873 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 14039 event pairs, 606 based on Foata normal form. 52/2210 useless extension candidates. Maximal degree in co-relation 4635. Up to 1375 conditions per place. [2023-08-29 01:38:47,154 INFO L137 encePairwiseOnDemand]: 2518/2525 looper letters, 142 selfloop transitions, 9 changer transitions 4/184 dead transitions. [2023-08-29 01:38:47,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 184 transitions, 858 flow [2023-08-29 01:38:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:38:47,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:38:47,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6715 transitions. [2023-08-29 01:38:47,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44323432343234326 [2023-08-29 01:38:47,168 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6715 transitions. [2023-08-29 01:38:47,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6715 transitions. [2023-08-29 01:38:47,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:38:47,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6715 transitions. [2023-08-29 01:38:47,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1119.1666666666667) internal successors, (6715), 6 states have internal predecessors, (6715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:47,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2525.0) internal successors, (17675), 7 states have internal predecessors, (17675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:47,191 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2525.0) internal successors, (17675), 7 states have internal predecessors, (17675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:47,191 INFO L175 Difference]: Start difference. First operand has 100 places, 100 transitions, 340 flow. Second operand 6 states and 6715 transitions. [2023-08-29 01:38:47,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 184 transitions, 858 flow [2023-08-29 01:38:47,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 184 transitions, 814 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 01:38:47,196 INFO L231 Difference]: Finished difference. Result has 105 places, 108 transitions, 400 flow [2023-08-29 01:38:47,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=400, PETRI_PLACES=105, PETRI_TRANSITIONS=108} [2023-08-29 01:38:47,197 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -59 predicate places. [2023-08-29 01:38:47,197 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 108 transitions, 400 flow [2023-08-29 01:38:47,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1098.3333333333333) internal successors, (6590), 6 states have internal predecessors, (6590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:47,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:38:47,199 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:38:47,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 01:38:47,199 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr11ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:38:47,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:38:47,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1038665544, now seen corresponding path program 1 times [2023-08-29 01:38:47,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:38:47,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133061320] [2023-08-29 01:38:47,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:38:47,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:38:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:38:47,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:38:47,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:38:47,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133061320] [2023-08-29 01:38:47,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133061320] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:38:47,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:38:47,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:38:47,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376023153] [2023-08-29 01:38:47,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:38:47,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:38:47,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:38:47,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:38:47,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:38:47,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1047 out of 2525 [2023-08-29 01:38:47,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 108 transitions, 400 flow. Second operand has 3 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:47,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:38:47,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1047 of 2525 [2023-08-29 01:38:47,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:38:48,785 INFO L130 PetriNetUnfolder]: 4116/7140 cut-off events. [2023-08-29 01:38:48,785 INFO L131 PetriNetUnfolder]: For 5317/5398 co-relation queries the response was YES. [2023-08-29 01:38:48,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18736 conditions, 7140 events. 4116/7140 cut-off events. For 5317/5398 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 38330 event pairs, 3476 based on Foata normal form. 0/6977 useless extension candidates. Maximal degree in co-relation 18722. Up to 6671 conditions per place. [2023-08-29 01:38:48,815 INFO L137 encePairwiseOnDemand]: 2512/2525 looper letters, 94 selfloop transitions, 26 changer transitions 0/129 dead transitions. [2023-08-29 01:38:48,816 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 129 transitions, 713 flow [2023-08-29 01:38:48,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:38:48,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:38:48,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3239 transitions. [2023-08-29 01:38:48,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4275907590759076 [2023-08-29 01:38:48,823 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3239 transitions. [2023-08-29 01:38:48,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3239 transitions. [2023-08-29 01:38:48,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:38:48,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3239 transitions. [2023-08-29 01:38:48,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1079.6666666666667) internal successors, (3239), 3 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:48,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:48,835 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:48,835 INFO L175 Difference]: Start difference. First operand has 105 places, 108 transitions, 400 flow. Second operand 3 states and 3239 transitions. [2023-08-29 01:38:48,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 129 transitions, 713 flow [2023-08-29 01:38:48,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 129 transitions, 713 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 01:38:48,855 INFO L231 Difference]: Finished difference. Result has 108 places, 120 transitions, 554 flow [2023-08-29 01:38:48,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=108, PETRI_TRANSITIONS=120} [2023-08-29 01:38:48,856 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -56 predicate places. [2023-08-29 01:38:48,856 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 120 transitions, 554 flow [2023-08-29 01:38:48,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:48,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:38:48,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:38:48,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 01:38:48,857 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_changeErr11ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:38:48,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:38:48,858 INFO L85 PathProgramCache]: Analyzing trace with hash -927494712, now seen corresponding path program 1 times [2023-08-29 01:38:48,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:38:48,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191881398] [2023-08-29 01:38:48,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:38:48,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:38:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:38:54,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:38:54,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:38:54,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191881398] [2023-08-29 01:38:54,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191881398] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:38:54,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:38:54,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:38:54,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058309326] [2023-08-29 01:38:54,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:38:54,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 01:38:54,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:38:54,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 01:38:54,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-29 01:38:55,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1034 out of 2525 [2023-08-29 01:38:55,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 120 transitions, 554 flow. Second operand has 7 states, 7 states have (on average 1039.4285714285713) internal successors, (7276), 7 states have internal predecessors, (7276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:55,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:38:55,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1034 of 2525 [2023-08-29 01:38:55,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:38:56,770 INFO L130 PetriNetUnfolder]: 4045/7029 cut-off events. [2023-08-29 01:38:56,770 INFO L131 PetriNetUnfolder]: For 7955/8022 co-relation queries the response was YES. [2023-08-29 01:38:56,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20155 conditions, 7029 events. 4045/7029 cut-off events. For 7955/8022 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 37660 event pairs, 3406 based on Foata normal form. 0/6932 useless extension candidates. Maximal degree in co-relation 20139. Up to 6375 conditions per place. [2023-08-29 01:38:56,870 INFO L137 encePairwiseOnDemand]: 2513/2525 looper letters, 100 selfloop transitions, 30 changer transitions 0/139 dead transitions. [2023-08-29 01:38:56,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 139 transitions, 897 flow [2023-08-29 01:38:56,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 01:38:56,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 01:38:56,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5268 transitions. [2023-08-29 01:38:56,882 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41726732673267325 [2023-08-29 01:38:56,882 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 5268 transitions. [2023-08-29 01:38:56,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5268 transitions. [2023-08-29 01:38:56,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:38:56,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 5268 transitions. [2023-08-29 01:38:56,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1053.6) internal successors, (5268), 5 states have internal predecessors, (5268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:56,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 2525.0) internal successors, (15150), 6 states have internal predecessors, (15150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:56,900 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 2525.0) internal successors, (15150), 6 states have internal predecessors, (15150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:56,900 INFO L175 Difference]: Start difference. First operand has 108 places, 120 transitions, 554 flow. Second operand 5 states and 5268 transitions. [2023-08-29 01:38:56,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 139 transitions, 897 flow [2023-08-29 01:38:56,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 139 transitions, 859 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-29 01:38:56,931 INFO L231 Difference]: Finished difference. Result has 112 places, 125 transitions, 645 flow [2023-08-29 01:38:56,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=645, PETRI_PLACES=112, PETRI_TRANSITIONS=125} [2023-08-29 01:38:56,931 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -52 predicate places. [2023-08-29 01:38:56,931 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 125 transitions, 645 flow [2023-08-29 01:38:56,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1039.4285714285713) internal successors, (7276), 7 states have internal predecessors, (7276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:56,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:38:56,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:38:56,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 01:38:56,933 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_pc8736x_gpio_changeErr12ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:38:56,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:38:56,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1725472468, now seen corresponding path program 1 times [2023-08-29 01:38:56,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:38:56,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601218816] [2023-08-29 01:38:56,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:38:56,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:38:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:38:57,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:38:57,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:38:57,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601218816] [2023-08-29 01:38:57,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601218816] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:38:57,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:38:57,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:38:57,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433792151] [2023-08-29 01:38:57,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:38:57,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:38:57,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:38:57,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:38:57,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:38:57,452 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1097 out of 2525 [2023-08-29 01:38:57,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 125 transitions, 645 flow. Second operand has 3 states, 3 states have (on average 1105.6666666666667) internal successors, (3317), 3 states have internal predecessors, (3317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:57,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:38:57,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1097 of 2525 [2023-08-29 01:38:57,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:38:58,414 INFO L130 PetriNetUnfolder]: 958/2326 cut-off events. [2023-08-29 01:38:58,414 INFO L131 PetriNetUnfolder]: For 2464/2918 co-relation queries the response was YES. [2023-08-29 01:38:58,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6219 conditions, 2326 events. 958/2326 cut-off events. For 2464/2918 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 14637 event pairs, 500 based on Foata normal form. 78/2338 useless extension candidates. Maximal degree in co-relation 6202. Up to 1221 conditions per place. [2023-08-29 01:38:58,424 INFO L137 encePairwiseOnDemand]: 2523/2525 looper letters, 79 selfloop transitions, 1 changer transitions 2/135 dead transitions. [2023-08-29 01:38:58,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 135 transitions, 838 flow [2023-08-29 01:38:58,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:38:58,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:38:58,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3355 transitions. [2023-08-29 01:38:58,432 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4429042904290429 [2023-08-29 01:38:58,432 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3355 transitions. [2023-08-29 01:38:58,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3355 transitions. [2023-08-29 01:38:58,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:38:58,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3355 transitions. [2023-08-29 01:38:58,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1118.3333333333333) internal successors, (3355), 3 states have internal predecessors, (3355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:58,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:58,443 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:58,444 INFO L175 Difference]: Start difference. First operand has 112 places, 125 transitions, 645 flow. Second operand 3 states and 3355 transitions. [2023-08-29 01:38:58,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 135 transitions, 838 flow [2023-08-29 01:38:58,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 135 transitions, 805 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 01:38:58,453 INFO L231 Difference]: Finished difference. Result has 110 places, 124 transitions, 612 flow [2023-08-29 01:38:58,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=612, PETRI_PLACES=110, PETRI_TRANSITIONS=124} [2023-08-29 01:38:58,454 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -54 predicate places. [2023-08-29 01:38:58,454 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 124 transitions, 612 flow [2023-08-29 01:38:58,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1105.6666666666667) internal successors, (3317), 3 states have internal predecessors, (3317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:58,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:38:58,455 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:38:58,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 01:38:58,455 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:38:58,455 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:38:58,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1988325343, now seen corresponding path program 1 times [2023-08-29 01:38:58,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:38:58,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092021117] [2023-08-29 01:38:58,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:38:58,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:38:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:38:59,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:38:59,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:38:59,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092021117] [2023-08-29 01:38:59,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092021117] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:38:59,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:38:59,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:38:59,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633761916] [2023-08-29 01:38:59,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:38:59,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:38:59,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:38:59,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:38:59,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:38:59,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1108 out of 2525 [2023-08-29 01:38:59,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 124 transitions, 612 flow. Second operand has 3 states, 3 states have (on average 1116.6666666666667) internal successors, (3350), 3 states have internal predecessors, (3350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:59,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:38:59,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1108 of 2525 [2023-08-29 01:38:59,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:38:59,713 INFO L130 PetriNetUnfolder]: 958/2327 cut-off events. [2023-08-29 01:38:59,713 INFO L131 PetriNetUnfolder]: For 2006/2460 co-relation queries the response was YES. [2023-08-29 01:38:59,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6127 conditions, 2327 events. 958/2327 cut-off events. For 2006/2460 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 14665 event pairs, 640 based on Foata normal form. 78/2335 useless extension candidates. Maximal degree in co-relation 6110. Up to 1595 conditions per place. [2023-08-29 01:38:59,727 INFO L137 encePairwiseOnDemand]: 2521/2525 looper letters, 70 selfloop transitions, 2 changer transitions 0/125 dead transitions. [2023-08-29 01:38:59,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 125 transitions, 758 flow [2023-08-29 01:38:59,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:38:59,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:38:59,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3381 transitions. [2023-08-29 01:38:59,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44633663366336634 [2023-08-29 01:38:59,736 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3381 transitions. [2023-08-29 01:38:59,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3381 transitions. [2023-08-29 01:38:59,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:38:59,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3381 transitions. [2023-08-29 01:38:59,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1127.0) internal successors, (3381), 3 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:59,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:59,750 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2525.0) internal successors, (10100), 4 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:59,750 INFO L175 Difference]: Start difference. First operand has 110 places, 124 transitions, 612 flow. Second operand 3 states and 3381 transitions. [2023-08-29 01:38:59,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 125 transitions, 758 flow [2023-08-29 01:38:59,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 125 transitions, 757 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:38:59,762 INFO L231 Difference]: Finished difference. Result has 112 places, 125 transitions, 625 flow [2023-08-29 01:38:59,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=625, PETRI_PLACES=112, PETRI_TRANSITIONS=125} [2023-08-29 01:38:59,763 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -52 predicate places. [2023-08-29 01:38:59,763 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 125 transitions, 625 flow [2023-08-29 01:38:59,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1116.6666666666667) internal successors, (3350), 3 states have internal predecessors, (3350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:38:59,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:38:59,765 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:38:59,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 01:38:59,765 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:38:59,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:38:59,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1462654705, now seen corresponding path program 1 times [2023-08-29 01:38:59,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:38:59,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444970071] [2023-08-29 01:38:59,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:38:59,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:39:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:39:00,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:39:00,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:39:00,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444970071] [2023-08-29 01:39:00,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444970071] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 01:39:00,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221949164] [2023-08-29 01:39:00,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:39:00,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 01:39:00,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:39:00,373 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) [2023-08-29 01:39:00,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 01:39:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:39:01,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-29 01:39:01,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 01:39:01,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:39:01,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 01:39:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:39:01,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221949164] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 01:39:01,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 01:39:01,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-29 01:39:01,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682205501] [2023-08-29 01:39:01,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 01:39:01,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 01:39:01,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:39:01,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 01:39:01,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-08-29 01:39:01,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1104 out of 2525 [2023-08-29 01:39:01,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 125 transitions, 625 flow. Second operand has 8 states, 8 states have (on average 1108.125) internal successors, (8865), 8 states have internal predecessors, (8865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:39:01,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:39:01,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1104 of 2525 [2023-08-29 01:39:01,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:39:02,533 INFO L130 PetriNetUnfolder]: 958/2332 cut-off events. [2023-08-29 01:39:02,534 INFO L131 PetriNetUnfolder]: For 1979/2433 co-relation queries the response was YES. [2023-08-29 01:39:02,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6147 conditions, 2332 events. 958/2332 cut-off events. For 1979/2433 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 14648 event pairs, 640 based on Foata normal form. 78/2340 useless extension candidates. Maximal degree in co-relation 6129. Up to 1590 conditions per place. [2023-08-29 01:39:02,548 INFO L137 encePairwiseOnDemand]: 2518/2525 looper letters, 66 selfloop transitions, 11 changer transitions 0/130 dead transitions. [2023-08-29 01:39:02,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 130 transitions, 795 flow [2023-08-29 01:39:02,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 01:39:02,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 01:39:02,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7796 transitions. [2023-08-29 01:39:02,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44107496463932105 [2023-08-29 01:39:02,564 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 7796 transitions. [2023-08-29 01:39:02,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 7796 transitions. [2023-08-29 01:39:02,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:39:02,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 7796 transitions. [2023-08-29 01:39:02,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 1113.7142857142858) internal successors, (7796), 7 states have internal predecessors, (7796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:39:02,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 2525.0) internal successors, (20200), 8 states have internal predecessors, (20200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:39:02,597 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 2525.0) internal successors, (20200), 8 states have internal predecessors, (20200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:39:02,597 INFO L175 Difference]: Start difference. First operand has 112 places, 125 transitions, 625 flow. Second operand 7 states and 7796 transitions. [2023-08-29 01:39:02,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 130 transitions, 795 flow [2023-08-29 01:39:02,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 130 transitions, 791 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 01:39:02,608 INFO L231 Difference]: Finished difference. Result has 117 places, 130 transitions, 663 flow [2023-08-29 01:39:02,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=663, PETRI_PLACES=117, PETRI_TRANSITIONS=130} [2023-08-29 01:39:02,609 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -47 predicate places. [2023-08-29 01:39:02,609 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 130 transitions, 663 flow [2023-08-29 01:39:02,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1108.125) internal successors, (8865), 8 states have internal predecessors, (8865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:39:02,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:39:02,610 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:39:02,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 01:39:02,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-08-29 01:39:02,822 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:39:02,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:39:02,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1260373025, now seen corresponding path program 2 times [2023-08-29 01:39:02,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:39:02,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189930396] [2023-08-29 01:39:02,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:39:02,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:39:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:39:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:39:03,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:39:03,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189930396] [2023-08-29 01:39:03,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189930396] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 01:39:03,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875372124] [2023-08-29 01:39:03,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 01:39:03,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 01:39:03,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:39:03,761 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) [2023-08-29 01:39:03,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 01:39:07,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-29 01:39:07,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 01:39:07,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1443 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-29 01:39:07,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 01:39:07,287 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:39:07,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 01:39:07,383 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:39:07,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875372124] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 01:39:07,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 01:39:07,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-08-29 01:39:07,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184666507] [2023-08-29 01:39:07,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 01:39:07,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-29 01:39:07,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:39:07,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-29 01:39:07,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2023-08-29 01:39:07,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1104 out of 2525 [2023-08-29 01:39:07,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 130 transitions, 663 flow. Second operand has 15 states, 15 states have (on average 1106.6666666666667) internal successors, (16600), 15 states have internal predecessors, (16600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:39:07,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:39:07,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1104 of 2525 [2023-08-29 01:39:07,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:39:09,800 INFO L130 PetriNetUnfolder]: 958/2341 cut-off events. [2023-08-29 01:39:09,800 INFO L131 PetriNetUnfolder]: For 1979/2433 co-relation queries the response was YES. [2023-08-29 01:39:09,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6191 conditions, 2341 events. 958/2341 cut-off events. For 1979/2433 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 14722 event pairs, 640 based on Foata normal form. 78/2350 useless extension candidates. Maximal degree in co-relation 6173. Up to 1595 conditions per place. [2023-08-29 01:39:09,814 INFO L137 encePairwiseOnDemand]: 2518/2525 looper letters, 69 selfloop transitions, 17 changer transitions 0/139 dead transitions. [2023-08-29 01:39:09,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 139 transitions, 883 flow [2023-08-29 01:39:09,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 01:39:09,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 01:39:09,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13332 transitions. [2023-08-29 01:39:09,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44 [2023-08-29 01:39:09,828 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 13332 transitions. [2023-08-29 01:39:09,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13332 transitions. [2023-08-29 01:39:09,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:39:09,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 13332 transitions. [2023-08-29 01:39:09,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 1111.0) internal successors, (13332), 12 states have internal predecessors, (13332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:39:09,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 2525.0) internal successors, (32825), 13 states have internal predecessors, (32825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:39:09,868 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 2525.0) internal successors, (32825), 13 states have internal predecessors, (32825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:39:09,868 INFO L175 Difference]: Start difference. First operand has 117 places, 130 transitions, 663 flow. Second operand 12 states and 13332 transitions. [2023-08-29 01:39:09,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 139 transitions, 883 flow [2023-08-29 01:39:09,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 139 transitions, 849 flow, removed 13 selfloop flow, removed 3 redundant places. [2023-08-29 01:39:09,879 INFO L231 Difference]: Finished difference. Result has 131 places, 139 transitions, 767 flow [2023-08-29 01:39:09,879 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=767, PETRI_PLACES=131, PETRI_TRANSITIONS=139} [2023-08-29 01:39:09,880 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -33 predicate places. [2023-08-29 01:39:09,880 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 139 transitions, 767 flow [2023-08-29 01:39:09,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1106.6666666666667) internal successors, (16600), 15 states have internal predecessors, (16600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:39:09,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:39:09,883 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:39:09,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 01:39:10,097 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,SelfDestructingSolverStorable14 [2023-08-29 01:39:10,097 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:39:10,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:39:10,098 INFO L85 PathProgramCache]: Analyzing trace with hash 37738729, now seen corresponding path program 3 times [2023-08-29 01:39:10,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:39:10,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431885705] [2023-08-29 01:39:10,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:39:10,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:39:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:39:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:39:11,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:39:11,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431885705] [2023-08-29 01:39:11,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431885705] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 01:39:11,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481901771] [2023-08-29 01:39:11,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-29 01:39:11,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 01:39:11,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:39:11,301 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) [2023-08-29 01:39:11,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 01:39:57,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-29 01:39:57,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 01:39:57,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 34 conjunts are in the unsatisfiable core [2023-08-29 01:39:57,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 01:39:57,353 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:39:57,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 01:39:57,920 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:39:57,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481901771] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 01:39:57,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 01:39:57,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 32 [2023-08-29 01:39:57,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810796571] [2023-08-29 01:39:57,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 01:39:57,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-29 01:39:57,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:39:57,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-29 01:39:57,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=730, Unknown=0, NotChecked=0, Total=1056 [2023-08-29 01:40:03,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1104 out of 2525 [2023-08-29 01:40:03,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 139 transitions, 767 flow. Second operand has 33 states, 33 states have (on average 1105.7575757575758) internal successors, (36490), 33 states have internal predecessors, (36490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:40:03,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:40:03,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1104 of 2525 [2023-08-29 01:40:03,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:40:24,159 WARN L222 SmtUtils]: Spent 15.56s on a formula simplification. DAG size of input: 67 DAG size of output: 47 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-29 01:40:34,909 WARN L222 SmtUtils]: Spent 8.01s on a formula simplification. DAG size of input: 61 DAG size of output: 43 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-29 01:40:49,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 01:40:52,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 01:40:54,002 INFO L130 PetriNetUnfolder]: 958/2359 cut-off events. [2023-08-29 01:40:54,002 INFO L131 PetriNetUnfolder]: For 2188/2642 co-relation queries the response was YES. [2023-08-29 01:40:54,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6296 conditions, 2359 events. 958/2359 cut-off events. For 2188/2642 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 14769 event pairs, 640 based on Foata normal form. 96/2388 useless extension candidates. Maximal degree in co-relation 6272. Up to 1590 conditions per place. [2023-08-29 01:40:54,015 INFO L137 encePairwiseOnDemand]: 2518/2525 looper letters, 66 selfloop transitions, 38 changer transitions 0/157 dead transitions. [2023-08-29 01:40:54,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 157 transitions, 1083 flow [2023-08-29 01:40:54,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-08-29 01:40:54,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-08-29 01:40:54,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27717 transitions. [2023-08-29 01:40:54,041 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43908118811881186 [2023-08-29 01:40:54,041 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 27717 transitions. [2023-08-29 01:40:54,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 27717 transitions. [2023-08-29 01:40:54,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:40:54,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 27717 transitions. [2023-08-29 01:40:54,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 1108.68) internal successors, (27717), 25 states have internal predecessors, (27717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:40:54,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 2525.0) internal successors, (65650), 26 states have internal predecessors, (65650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:40:54,201 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 2525.0) internal successors, (65650), 26 states have internal predecessors, (65650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:40:54,202 INFO L175 Difference]: Start difference. First operand has 131 places, 139 transitions, 767 flow. Second operand 25 states and 27717 transitions. [2023-08-29 01:40:54,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 157 transitions, 1083 flow [2023-08-29 01:40:54,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 157 transitions, 1059 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-08-29 01:40:54,212 INFO L231 Difference]: Finished difference. Result has 153 places, 157 transitions, 931 flow [2023-08-29 01:40:54,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2525, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=931, PETRI_PLACES=153, PETRI_TRANSITIONS=157} [2023-08-29 01:40:54,213 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -11 predicate places. [2023-08-29 01:40:54,213 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 157 transitions, 931 flow [2023-08-29 01:40:54,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 1105.7575757575758) internal successors, (36490), 33 states have internal predecessors, (36490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:40:54,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:40:54,218 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:40:54,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-29 01:40:54,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 01:40:54,436 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-08-29 01:40:54,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:40:54,437 INFO L85 PathProgramCache]: Analyzing trace with hash 5214687, now seen corresponding path program 4 times [2023-08-29 01:40:54,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:40:54,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038389940] [2023-08-29 01:40:54,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:40:54,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:40:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:40:57,653 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:40:57,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:40:57,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038389940] [2023-08-29 01:40:57,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038389940] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 01:40:57,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613965613] [2023-08-29 01:40:57,654 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-29 01:40:57,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 01:40:57,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:40:57,661 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) [2023-08-29 01:40:57,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-29 01:41:05,704 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-29 01:41:05,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 01:41:05,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 51 conjunts are in the unsatisfiable core [2023-08-29 01:41:05,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 01:41:05,910 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:41:05,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 01:41:06,941 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:41:06,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613965613] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 01:41:06,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 01:41:06,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2023-08-29 01:41:06,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370312501] [2023-08-29 01:41:06,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 01:41:06,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-08-29 01:41:06,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:41:06,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-08-29 01:41:06,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=670, Invalid=1682, Unknown=0, NotChecked=0, Total=2352 [2023-08-29 01:41:14,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1104 out of 2525 [2023-08-29 01:41:14,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 157 transitions, 931 flow. Second operand has 49 states, 49 states have (on average 1105.5102040816328) internal successors, (54170), 49 states have internal predecessors, (54170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:41:14,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:41:14,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1104 of 2525 [2023-08-29 01:41:14,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:42:56,436 WARN L222 SmtUtils]: Spent 1.15m on a formula simplification that was a NOOP. DAG size: 95 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-29 01:42:58,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 01:43:00,455 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false Killed by 15