./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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_current_pc8736x_gpio_set.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 fe55b2f9c4aab8ef897b3db507488ea7950c808c5052f30fdbd219f5b35357b3 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:12:26,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:12:26,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:12:26,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:12:26,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:12:26,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:12:26,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:12:26,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:12:26,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:12:26,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:12:26,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:12:26,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:12:26,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:12:26,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:12:26,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:12:26,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:12:26,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:12:26,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:12:27,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:12:27,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:12:27,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:12:27,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:12:27,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:12:27,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:12:27,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:12:27,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:12:27,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:12:27,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:12:27,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:12:27,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:12:27,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:12:27,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:12:27,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:12:27,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:12:27,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:12:27,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:12:27,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:12:27,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:12:27,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:12:27,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:12:27,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:12:27,037 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:12:27,075 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:12:27,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:12:27,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:12:27,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:12:27,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:12:27,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:12:27,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:12:27,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:12:27,079 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:12:27,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:12:27,080 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:12:27,080 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:12:27,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:12:27,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:12:27,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:12:27,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:12:27,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:12:27,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:12:27,081 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:12:27,081 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:12:27,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:12:27,082 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:12:27,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:12:27,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:12:27,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:12:27,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:12:27,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:12:27,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:12:27,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:12:27,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:12:27,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:12:27,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:12:27,084 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:12:27,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:12:27,084 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:12:27,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:12:27,085 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:12:27,085 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe55b2f9c4aab8ef897b3db507488ea7950c808c5052f30fdbd219f5b35357b3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:12:27,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:12:27,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:12:27,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:12:27,403 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:12:27,403 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:12:27,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2023-08-29 17:12:28,603 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:12:29,109 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:12:29,110 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2023-08-29 17:12:29,158 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6f2b5796/fd0a94d9abad48b99559d3059cb959e8/FLAGe784937ad [2023-08-29 17:12:29,181 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6f2b5796/fd0a94d9abad48b99559d3059cb959e8 [2023-08-29 17:12:29,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:12:29,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:12:29,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:12:29,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:12:29,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:12:29,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:12:29" (1/1) ... [2023-08-29 17:12:29,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a5e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:12:29, skipping insertion in model container [2023-08-29 17:12:29,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:12:29" (1/1) ... [2023-08-29 17:12:29,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:12:29,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:12:29,623 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_current_pc8736x_gpio_set.i[5469,5482] [2023-08-29 17:12:32,351 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-29 17:12:32,958 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-29 17:12:32,962 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-29 17:12:33,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:12:33,062 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:12:33,087 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_current_pc8736x_gpio_set.i[5469,5482] [2023-08-29 17:12:33,404 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-29 17:12:33,468 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-29 17:12:33,469 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-29 17:12:33,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:12:33,957 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 17:12:33,958 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 17:12:33,958 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 17:12:33,958 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 17:12:33,958 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 17:12:33,958 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 17:12:33,959 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 17:12:33,965 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:12:33,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:12:33 WrapperNode [2023-08-29 17:12:33,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:12:33,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:12:33,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:12:33,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:12:33,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:12:33" (1/1) ... [2023-08-29 17:12:34,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:12:33" (1/1) ... [2023-08-29 17:12:34,193 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 51, statements flattened = 974 [2023-08-29 17:12:34,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:12:34,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:12:34,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:12:34,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:12:34,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:12:33" (1/1) ... [2023-08-29 17:12:34,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:12:33" (1/1) ... [2023-08-29 17:12:34,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:12:33" (1/1) ... [2023-08-29 17:12:34,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:12:33" (1/1) ... [2023-08-29 17:12:34,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:12:33" (1/1) ... [2023-08-29 17:12:34,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:12:33" (1/1) ... [2023-08-29 17:12:34,290 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:12:33" (1/1) ... [2023-08-29 17:12:34,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:12:33" (1/1) ... [2023-08-29 17:12:34,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:12:34,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:12:34,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:12:34,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:12:34,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:12:33" (1/1) ... [2023-08-29 17:12:34,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:12:34,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:12:34,346 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 17:12:34,361 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 17:12:34,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:12:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 17:12:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:12:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 17:12:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-29 17:12:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-29 17:12:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:12:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:12:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-29 17:12:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:12:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 17:12:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:12:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:12:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-29 17:12:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-29 17:12:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-08-29 17:12:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:12:34,385 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 17:12:34,958 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:12:34,960 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:12:35,974 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:12:35,985 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:12:35,986 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-08-29 17:12:35,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:12:35 BoogieIcfgContainer [2023-08-29 17:12:35,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:12:35,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:12:35,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:12:35,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:12:35,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:12:29" (1/3) ... [2023-08-29 17:12:35,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357038e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:12:35, skipping insertion in model container [2023-08-29 17:12:35,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:12:33" (2/3) ... [2023-08-29 17:12:35,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357038e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:12:35, skipping insertion in model container [2023-08-29 17:12:35,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:12:35" (3/3) ... [2023-08-29 17:12:35,996 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2023-08-29 17:12:36,003 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:12:36,012 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:12:36,013 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2023-08-29 17:12:36,013 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:12:36,153 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 17:12:36,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1073 places, 1118 transitions, 2252 flow [2023-08-29 17:12:36,534 INFO L130 PetriNetUnfolder]: 52/1116 cut-off events. [2023-08-29 17:12:36,535 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 17:12:36,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1125 conditions, 1116 events. 52/1116 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1546 event pairs, 0 based on Foata normal form. 0/978 useless extension candidates. Maximal degree in co-relation 1049. Up to 9 conditions per place. [2023-08-29 17:12:36,544 INFO L82 GeneralOperation]: Start removeDead. Operand has 1073 places, 1118 transitions, 2252 flow [2023-08-29 17:12:36,556 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1063 places, 1108 transitions, 2225 flow [2023-08-29 17:12:36,560 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:12:36,568 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1063 places, 1108 transitions, 2225 flow [2023-08-29 17:12:36,570 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1063 places, 1108 transitions, 2225 flow [2023-08-29 17:12:36,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1063 places, 1108 transitions, 2225 flow [2023-08-29 17:12:36,795 INFO L130 PetriNetUnfolder]: 52/1108 cut-off events. [2023-08-29 17:12:36,796 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 17:12:36,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1116 conditions, 1108 events. 52/1108 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1486 event pairs, 0 based on Foata normal form. 0/970 useless extension candidates. Maximal degree in co-relation 1049. Up to 9 conditions per place. [2023-08-29 17:12:36,809 INFO L119 LiptonReduction]: Number of co-enabled transitions 19638 [2023-08-29 17:14:17,566 WARN L222 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 301 DAG size of output: 294 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:14:28,568 WARN L222 SmtUtils]: Spent 8.39s on a formula simplification. DAG size of input: 322 DAG size of output: 315 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:14:40,285 WARN L222 SmtUtils]: Spent 7.72s on a formula simplification that was a NOOP. DAG size: 467 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:14:48,788 WARN L222 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 458 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:14:57,565 WARN L222 SmtUtils]: Spent 8.77s on a formula simplification that was a NOOP. DAG size: 467 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:15:05,149 WARN L222 SmtUtils]: Spent 7.58s on a formula simplification that was a NOOP. DAG size: 458 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:16:57,109 WARN L222 SmtUtils]: Spent 1.87m on a formula simplification. DAG size of input: 644 DAG size of output: 642 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:17:44,917 WARN L222 SmtUtils]: Spent 47.79s 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 17:20:08,332 WARN L222 SmtUtils]: Spent 2.39m on a formula simplification. DAG size of input: 647 DAG size of output: 645 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:21:14,591 WARN L222 SmtUtils]: Spent 1.10m 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 17:21:14,672 INFO L134 LiptonReduction]: Checked pairs total: 75869 [2023-08-29 17:21:14,672 INFO L136 LiptonReduction]: Total number of compositions: 1353 [2023-08-29 17:21:14,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:21:14,697 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;@2738936f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:21:14,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 103 error locations. [2023-08-29 17:21:14,699 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 17:21:14,699 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:21:14,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:21:14,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 17:21:14,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 17:21:14,704 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:21:14,704 INFO L85 PathProgramCache]: Analyzing trace with hash 3996, now seen corresponding path program 1 times [2023-08-29 17:21:14,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:21:14,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100773164] [2023-08-29 17:21:14,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:21:14,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:21:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:21:14,867 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 17:21:14,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:21:14,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100773164] [2023-08-29 17:21:14,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100773164] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:21:14,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:21:14,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 17:21:14,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711836987] [2023-08-29 17:21:14,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:21:14,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 17:21:14,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:21:14,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 17:21:14,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 17:21:14,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1082 out of 2471 [2023-08-29 17:21:14,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 180 transitions, 369 flow. Second operand has 2 states, 2 states have (on average 1082.5) internal successors, (2165), 2 states have internal predecessors, (2165), 0 states have call successors, (0), 0 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 17:21:14,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:21:14,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1082 of 2471 [2023-08-29 17:21:14,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:21:15,465 INFO L130 PetriNetUnfolder]: 344/1093 cut-off events. [2023-08-29 17:21:15,465 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2023-08-29 17:21:15,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1766 conditions, 1093 events. 344/1093 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5955 event pairs, 333 based on Foata normal form. 47/1108 useless extension candidates. Maximal degree in co-relation 1612. Up to 629 conditions per place. [2023-08-29 17:21:15,473 INFO L137 encePairwiseOnDemand]: 2389/2471 looper letters, 52 selfloop transitions, 0 changer transitions 0/98 dead transitions. [2023-08-29 17:21:15,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 98 transitions, 309 flow [2023-08-29 17:21:15,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 17:21:15,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 17:21:15,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2298 transitions. [2023-08-29 17:21:15,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4649939295831647 [2023-08-29 17:21:15,492 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2298 transitions. [2023-08-29 17:21:15,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2298 transitions. [2023-08-29 17:21:15,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:21:15,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2298 transitions. [2023-08-29 17:21:15,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1149.0) internal successors, (2298), 2 states have internal predecessors, (2298), 0 states have call successors, (0), 0 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 17:21:15,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2471.0) internal successors, (7413), 3 states have internal predecessors, (7413), 0 states have call successors, (0), 0 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 17:21:15,525 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2471.0) internal successors, (7413), 3 states have internal predecessors, (7413), 0 states have call successors, (0), 0 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 17:21:15,526 INFO L175 Difference]: Start difference. First operand has 165 places, 180 transitions, 369 flow. Second operand 2 states and 2298 transitions. [2023-08-29 17:21:15,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 98 transitions, 309 flow [2023-08-29 17:21:15,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 98 transitions, 304 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 17:21:15,533 INFO L231 Difference]: Finished difference. Result has 92 places, 98 transitions, 200 flow [2023-08-29 17:21:15,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2471, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=200, PETRI_PLACES=92, PETRI_TRANSITIONS=98} [2023-08-29 17:21:15,538 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -73 predicate places. [2023-08-29 17:21:15,539 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 98 transitions, 200 flow [2023-08-29 17:21:15,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1082.5) internal successors, (2165), 2 states have internal predecessors, (2165), 0 states have call successors, (0), 0 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 17:21:15,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:21:15,541 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 17:21:15,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:21:15,541 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 101 more)] === [2023-08-29 17:21:15,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:21:15,548 INFO L85 PathProgramCache]: Analyzing trace with hash 4026342, now seen corresponding path program 1 times [2023-08-29 17:21:15,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:21:15,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002956598] [2023-08-29 17:21:15,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:21:15,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:21:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:21:15,908 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 17:21:15,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:21:15,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002956598] [2023-08-29 17:21:15,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002956598] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:21:15,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:21:15,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:21:15,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908560085] [2023-08-29 17:21:15,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:21:15,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:21:15,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:21:15,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:21:15,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:21:15,934 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1063 out of 2471 [2023-08-29 17:21:15,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 98 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 1064.0) internal successors, (3192), 3 states have internal predecessors, (3192), 0 states have call successors, (0), 0 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 17:21:15,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:21:15,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1063 of 2471 [2023-08-29 17:21:15,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:21:16,617 INFO L130 PetriNetUnfolder]: 344/1091 cut-off events. [2023-08-29 17:21:16,618 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:21:16,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1755 conditions, 1091 events. 344/1091 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5932 event pairs, 333 based on Foata normal form. 0/1059 useless extension candidates. Maximal degree in co-relation 1752. Up to 626 conditions per place. [2023-08-29 17:21:16,626 INFO L137 encePairwiseOnDemand]: 2466/2471 looper letters, 49 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2023-08-29 17:21:16,626 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 96 transitions, 300 flow [2023-08-29 17:21:16,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:21:16,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:21:16,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3243 transitions. [2023-08-29 17:21:16,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4374747065965196 [2023-08-29 17:21:16,634 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3243 transitions. [2023-08-29 17:21:16,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3243 transitions. [2023-08-29 17:21:16,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:21:16,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3243 transitions. [2023-08-29 17:21:16,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1081.0) internal successors, (3243), 3 states have internal predecessors, (3243), 0 states have call successors, (0), 0 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 17:21:16,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2471.0) internal successors, (9884), 4 states have internal predecessors, (9884), 0 states have call successors, (0), 0 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 17:21:16,659 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2471.0) internal successors, (9884), 4 states have internal predecessors, (9884), 0 states have call successors, (0), 0 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 17:21:16,659 INFO L175 Difference]: Start difference. First operand has 92 places, 98 transitions, 200 flow. Second operand 3 states and 3243 transitions. [2023-08-29 17:21:16,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 96 transitions, 300 flow [2023-08-29 17:21:16,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 96 transitions, 300 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:21:16,685 INFO L231 Difference]: Finished difference. Result has 92 places, 96 transitions, 202 flow [2023-08-29 17:21:16,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2471, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=92, PETRI_TRANSITIONS=96} [2023-08-29 17:21:16,686 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -73 predicate places. [2023-08-29 17:21:16,686 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 96 transitions, 202 flow [2023-08-29 17:21:16,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1064.0) internal successors, (3192), 3 states have internal predecessors, (3192), 0 states have call successors, (0), 0 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 17:21:16,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:21:16,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 17:21:16,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:21:16,693 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 17:21:16,694 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:21:16,694 INFO L85 PathProgramCache]: Analyzing trace with hash -423120256, now seen corresponding path program 1 times [2023-08-29 17:21:16,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:21:16,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588834745] [2023-08-29 17:21:16,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:21:16,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:21:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:21:16,964 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 17:21:16,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:21:16,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588834745] [2023-08-29 17:21:16,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588834745] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:21:16,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:21:16,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:21:16,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599270903] [2023-08-29 17:21:16,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:21:16,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:21:16,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:21:16,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:21:16,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:21:16,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1078 out of 2471 [2023-08-29 17:21:16,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 96 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 1079.3333333333333) internal successors, (3238), 3 states have internal predecessors, (3238), 0 states have call successors, (0), 0 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 17:21:16,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:21:16,996 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1078 of 2471 [2023-08-29 17:21:16,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:21:17,369 INFO L130 PetriNetUnfolder]: 342/1088 cut-off events. [2023-08-29 17:21:17,369 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:21:17,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1752 conditions, 1088 events. 342/1088 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5908 event pairs, 333 based on Foata normal form. 0/1059 useless extension candidates. Maximal degree in co-relation 1748. Up to 625 conditions per place. [2023-08-29 17:21:17,375 INFO L137 encePairwiseOnDemand]: 2468/2471 looper letters, 48 selfloop transitions, 1 changer transitions 0/93 dead transitions. [2023-08-29 17:21:17,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 93 transitions, 292 flow [2023-08-29 17:21:17,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:21:17,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:21:17,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3285 transitions. [2023-08-29 17:21:17,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44314042897612305 [2023-08-29 17:21:17,383 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3285 transitions. [2023-08-29 17:21:17,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3285 transitions. [2023-08-29 17:21:17,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:21:17,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3285 transitions. [2023-08-29 17:21:17,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1095.0) internal successors, (3285), 3 states have internal predecessors, (3285), 0 states have call successors, (0), 0 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 17:21:17,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2471.0) internal successors, (9884), 4 states have internal predecessors, (9884), 0 states have call successors, (0), 0 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 17:21:17,404 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2471.0) internal successors, (9884), 4 states have internal predecessors, (9884), 0 states have call successors, (0), 0 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 17:21:17,405 INFO L175 Difference]: Start difference. First operand has 92 places, 96 transitions, 202 flow. Second operand 3 states and 3285 transitions. [2023-08-29 17:21:17,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 93 transitions, 292 flow [2023-08-29 17:21:17,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 93 transitions, 290 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:21:17,407 INFO L231 Difference]: Finished difference. Result has 92 places, 93 transitions, 194 flow [2023-08-29 17:21:17,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2471, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=92, PETRI_TRANSITIONS=93} [2023-08-29 17:21:17,408 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -73 predicate places. [2023-08-29 17:21:17,408 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 93 transitions, 194 flow [2023-08-29 17:21:17,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1079.3333333333333) internal successors, (3238), 3 states have internal predecessors, (3238), 0 states have call successors, (0), 0 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 17:21:17,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:21:17,410 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 17:21:17,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:21:17,410 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 17:21:17,411 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:21:17,411 INFO L85 PathProgramCache]: Analyzing trace with hash -238384358, now seen corresponding path program 1 times [2023-08-29 17:21:17,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:21:17,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313977302] [2023-08-29 17:21:17,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:21:17,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:21:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:21:17,549 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 17:21:17,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:21:17,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313977302] [2023-08-29 17:21:17,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313977302] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:21:17,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:21:17,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:21:17,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619817529] [2023-08-29 17:21:17,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:21:17,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:21:17,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:21:17,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:21:17,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:21:17,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 2471 [2023-08-29 17:21:17,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 93 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 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 17:21:17,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:21:17,572 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 2471 [2023-08-29 17:21:17,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:21:17,948 INFO L130 PetriNetUnfolder]: 384/1164 cut-off events. [2023-08-29 17:21:17,949 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:21:17,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1907 conditions, 1164 events. 384/1164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6243 event pairs, 375 based on Foata normal form. 0/1139 useless extension candidates. Maximal degree in co-relation 1903. Up to 699 conditions per place. [2023-08-29 17:21:17,955 INFO L137 encePairwiseOnDemand]: 2467/2471 looper letters, 50 selfloop transitions, 1 changer transitions 0/90 dead transitions. [2023-08-29 17:21:17,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 90 transitions, 290 flow [2023-08-29 17:21:17,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:21:17,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:21:17,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3261 transitions. [2023-08-29 17:21:17,962 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4399028733306354 [2023-08-29 17:21:17,962 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3261 transitions. [2023-08-29 17:21:17,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3261 transitions. [2023-08-29 17:21:17,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:21:17,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3261 transitions. [2023-08-29 17:21:17,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1087.0) internal successors, (3261), 3 states have internal predecessors, (3261), 0 states have call successors, (0), 0 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 17:21:17,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2471.0) internal successors, (9884), 4 states have internal predecessors, (9884), 0 states have call successors, (0), 0 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 17:21:17,980 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2471.0) internal successors, (9884), 4 states have internal predecessors, (9884), 0 states have call successors, (0), 0 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 17:21:17,980 INFO L175 Difference]: Start difference. First operand has 92 places, 93 transitions, 194 flow. Second operand 3 states and 3261 transitions. [2023-08-29 17:21:17,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 90 transitions, 290 flow [2023-08-29 17:21:17,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 90 transitions, 289 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:21:17,982 INFO L231 Difference]: Finished difference. Result has 90 places, 90 transitions, 189 flow [2023-08-29 17:21:17,983 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2471, 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 17:21:17,983 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -75 predicate places. [2023-08-29 17:21:17,983 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 90 transitions, 189 flow [2023-08-29 17:21:17,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 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 17:21:17,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:21:17,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:21:17,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:21:17,985 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 101 more)] === [2023-08-29 17:21:17,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:21:17,985 INFO L85 PathProgramCache]: Analyzing trace with hash 614995702, now seen corresponding path program 1 times [2023-08-29 17:21:17,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:21:17,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190017760] [2023-08-29 17:21:17,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:21:17,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:21:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:21:18,270 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 17:21:18,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:21:18,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190017760] [2023-08-29 17:21:18,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190017760] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:21:18,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:21:18,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:21:18,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751222099] [2023-08-29 17:21:18,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:21:18,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:21:18,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:21:18,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:21:18,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:21:18,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1060 out of 2471 [2023-08-29 17:21:18,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 90 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 1063.6666666666667) internal successors, (3191), 3 states have internal predecessors, (3191), 0 states have call successors, (0), 0 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 17:21:18,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:21:18,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1060 of 2471 [2023-08-29 17:21:18,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:21:19,486 INFO L130 PetriNetUnfolder]: 493/1257 cut-off events. [2023-08-29 17:21:19,486 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 17:21:19,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2198 conditions, 1257 events. 493/1257 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6539 event pairs, 222 based on Foata normal form. 0/1185 useless extension candidates. Maximal degree in co-relation 2194. Up to 477 conditions per place. [2023-08-29 17:21:19,493 INFO L137 encePairwiseOnDemand]: 2464/2471 looper letters, 70 selfloop transitions, 5 changer transitions 0/112 dead transitions. [2023-08-29 17:21:19,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 112 transitions, 384 flow [2023-08-29 17:21:19,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:21:19,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:21:19,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3257 transitions. [2023-08-29 17:21:19,500 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4393632807230541 [2023-08-29 17:21:19,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3257 transitions. [2023-08-29 17:21:19,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3257 transitions. [2023-08-29 17:21:19,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:21:19,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3257 transitions. [2023-08-29 17:21:19,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1085.6666666666667) internal successors, (3257), 3 states have internal predecessors, (3257), 0 states have call successors, (0), 0 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 17:21:19,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2471.0) internal successors, (9884), 4 states have internal predecessors, (9884), 0 states have call successors, (0), 0 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 17:21:19,517 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2471.0) internal successors, (9884), 4 states have internal predecessors, (9884), 0 states have call successors, (0), 0 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 17:21:19,517 INFO L175 Difference]: Start difference. First operand has 90 places, 90 transitions, 189 flow. Second operand 3 states and 3257 transitions. [2023-08-29 17:21:19,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 112 transitions, 384 flow [2023-08-29 17:21:19,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 112 transitions, 383 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:21:19,520 INFO L231 Difference]: Finished difference. Result has 93 places, 94 transitions, 228 flow [2023-08-29 17:21:19,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2471, 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 17:21:19,520 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -72 predicate places. [2023-08-29 17:21:19,521 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 94 transitions, 228 flow [2023-08-29 17:21:19,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1063.6666666666667) internal successors, (3191), 3 states have internal predecessors, (3191), 0 states have call successors, (0), 0 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 17:21:19,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:21:19,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:21:19,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:21:19,522 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 17:21:19,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:21:19,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1267183436, now seen corresponding path program 1 times [2023-08-29 17:21:19,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:21:19,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540169508] [2023-08-29 17:21:19,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:21:19,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:21:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:21:20,291 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 17:21:20,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:21:20,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540169508] [2023-08-29 17:21:20,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540169508] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:21:20,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:21:20,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:21:20,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237480241] [2023-08-29 17:21:20,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:21:20,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:21:20,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:21:20,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:21:20,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:21:20,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1061 out of 2471 [2023-08-29 17:21:20,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 94 transitions, 228 flow. Second operand has 6 states, 6 states have (on average 1063.0) internal successors, (6378), 6 states have internal predecessors, (6378), 0 states have call successors, (0), 0 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 17:21:20,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:21:20,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1061 of 2471 [2023-08-29 17:21:20,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:21:21,877 INFO L130 PetriNetUnfolder]: 1780/3769 cut-off events. [2023-08-29 17:21:21,878 INFO L131 PetriNetUnfolder]: For 560/841 co-relation queries the response was YES. [2023-08-29 17:21:21,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7393 conditions, 3769 events. 1780/3769 cut-off events. For 560/841 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 25240 event pairs, 485 based on Foata normal form. 115/3783 useless extension candidates. Maximal degree in co-relation 7388. Up to 1194 conditions per place. [2023-08-29 17:21:21,901 INFO L137 encePairwiseOnDemand]: 2464/2471 looper letters, 147 selfloop transitions, 13 changer transitions 0/196 dead transitions. [2023-08-29 17:21:21,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 196 transitions, 825 flow [2023-08-29 17:21:21,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:21:21,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:21:21,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6512 transitions. [2023-08-29 17:21:21,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43922838257115876 [2023-08-29 17:21:21,946 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6512 transitions. [2023-08-29 17:21:21,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6512 transitions. [2023-08-29 17:21:21,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:21:21,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6512 transitions. [2023-08-29 17:21:21,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1085.3333333333333) internal successors, (6512), 6 states have internal predecessors, (6512), 0 states have call successors, (0), 0 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 17:21:21,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2471.0) internal successors, (17297), 7 states have internal predecessors, (17297), 0 states have call successors, (0), 0 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 17:21:21,978 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2471.0) internal successors, (17297), 7 states have internal predecessors, (17297), 0 states have call successors, (0), 0 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 17:21:21,979 INFO L175 Difference]: Start difference. First operand has 93 places, 94 transitions, 228 flow. Second operand 6 states and 6512 transitions. [2023-08-29 17:21:21,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 196 transitions, 825 flow [2023-08-29 17:21:21,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 196 transitions, 791 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 17:21:21,984 INFO L231 Difference]: Finished difference. Result has 101 places, 106 transitions, 324 flow [2023-08-29 17:21:21,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2471, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=101, PETRI_TRANSITIONS=106} [2023-08-29 17:21:21,985 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -64 predicate places. [2023-08-29 17:21:21,985 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 106 transitions, 324 flow [2023-08-29 17:21:21,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1063.0) internal successors, (6378), 6 states have internal predecessors, (6378), 0 states have call successors, (0), 0 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 17:21:21,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:21:21,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:21:21,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:21:21,987 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr3ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 17:21:21,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:21:21,987 INFO L85 PathProgramCache]: Analyzing trace with hash -554012796, now seen corresponding path program 1 times [2023-08-29 17:21:21,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:21:21,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250746614] [2023-08-29 17:21:21,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:21:21,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:21:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:21:22,710 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 17:21:22,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:21:22,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250746614] [2023-08-29 17:21:22,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250746614] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:21:22,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:21:22,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:21:22,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764283070] [2023-08-29 17:21:22,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:21:22,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:21:22,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:21:22,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:21:22,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:21:23,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1042 out of 2471 [2023-08-29 17:21:23,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 106 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 1044.0) internal successors, (6264), 6 states have internal predecessors, (6264), 0 states have call successors, (0), 0 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 17:21:23,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:21:23,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1042 of 2471 [2023-08-29 17:21:23,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:21:24,265 INFO L130 PetriNetUnfolder]: 888/2216 cut-off events. [2023-08-29 17:21:24,265 INFO L131 PetriNetUnfolder]: For 362/567 co-relation queries the response was YES. [2023-08-29 17:21:24,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4513 conditions, 2216 events. 888/2216 cut-off events. For 362/567 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 13834 event pairs, 265 based on Foata normal form. 68/2231 useless extension candidates. Maximal degree in co-relation 4504. Up to 814 conditions per place. [2023-08-29 17:21:24,278 INFO L137 encePairwiseOnDemand]: 2462/2471 looper letters, 98 selfloop transitions, 14 changer transitions 0/138 dead transitions. [2023-08-29 17:21:24,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 138 transitions, 636 flow [2023-08-29 17:21:24,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:21:24,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:21:24,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6357 transitions. [2023-08-29 17:21:24,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42877377579927156 [2023-08-29 17:21:24,293 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6357 transitions. [2023-08-29 17:21:24,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6357 transitions. [2023-08-29 17:21:24,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:21:24,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6357 transitions. [2023-08-29 17:21:24,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1059.5) internal successors, (6357), 6 states have internal predecessors, (6357), 0 states have call successors, (0), 0 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 17:21:24,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2471.0) internal successors, (17297), 7 states have internal predecessors, (17297), 0 states have call successors, (0), 0 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 17:21:24,324 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2471.0) internal successors, (17297), 7 states have internal predecessors, (17297), 0 states have call successors, (0), 0 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 17:21:24,324 INFO L175 Difference]: Start difference. First operand has 101 places, 106 transitions, 324 flow. Second operand 6 states and 6357 transitions. [2023-08-29 17:21:24,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 138 transitions, 636 flow [2023-08-29 17:21:24,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 138 transitions, 636 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:21:24,330 INFO L231 Difference]: Finished difference. Result has 102 places, 102 transitions, 344 flow [2023-08-29 17:21:24,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2471, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=102, PETRI_TRANSITIONS=102} [2023-08-29 17:21:24,330 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -63 predicate places. [2023-08-29 17:21:24,331 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 102 transitions, 344 flow [2023-08-29 17:21:24,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1044.0) internal successors, (6264), 6 states have internal predecessors, (6264), 0 states have call successors, (0), 0 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 17:21:24,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:21:24,332 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 17:21:24,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:21:24,332 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_setErr10ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 17:21:24,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:21:24,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1901957370, now seen corresponding path program 1 times [2023-08-29 17:21:24,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:21:24,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274091234] [2023-08-29 17:21:24,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:21:24,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:21:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:21:24,665 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 17:21:24,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:21:24,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274091234] [2023-08-29 17:21:24,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274091234] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:21:24,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:21:24,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:21:24,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018781999] [2023-08-29 17:21:24,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:21:24,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:21:24,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:21:24,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:21:24,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:21:24,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1015 out of 2471 [2023-08-29 17:21:24,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 102 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 1026.3333333333333) internal successors, (3079), 3 states have internal predecessors, (3079), 0 states have call successors, (0), 0 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 17:21:24,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:21:24,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1015 of 2471 [2023-08-29 17:21:24,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:21:25,968 INFO L130 PetriNetUnfolder]: 4001/6855 cut-off events. [2023-08-29 17:21:25,969 INFO L131 PetriNetUnfolder]: For 5088/5180 co-relation queries the response was YES. [2023-08-29 17:21:25,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18101 conditions, 6855 events. 4001/6855 cut-off events. For 5088/5180 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 36184 event pairs, 3371 based on Foata normal form. 0/6672 useless extension candidates. Maximal degree in co-relation 18091. Up to 6432 conditions per place. [2023-08-29 17:21:26,015 INFO L137 encePairwiseOnDemand]: 2462/2471 looper letters, 90 selfloop transitions, 18 changer transitions 0/119 dead transitions. [2023-08-29 17:21:26,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 119 transitions, 616 flow [2023-08-29 17:21:26,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:21:26,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:21:26,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3138 transitions. [2023-08-29 17:21:26,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42331040064751113 [2023-08-29 17:21:26,022 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3138 transitions. [2023-08-29 17:21:26,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3138 transitions. [2023-08-29 17:21:26,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:21:26,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3138 transitions. [2023-08-29 17:21:26,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1046.0) internal successors, (3138), 3 states have internal predecessors, (3138), 0 states have call successors, (0), 0 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 17:21:26,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2471.0) internal successors, (9884), 4 states have internal predecessors, (9884), 0 states have call successors, (0), 0 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 17:21:26,099 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2471.0) internal successors, (9884), 4 states have internal predecessors, (9884), 0 states have call successors, (0), 0 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 17:21:26,100 INFO L175 Difference]: Start difference. First operand has 102 places, 102 transitions, 344 flow. Second operand 3 states and 3138 transitions. [2023-08-29 17:21:26,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 119 transitions, 616 flow [2023-08-29 17:21:26,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 119 transitions, 588 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 17:21:26,121 INFO L231 Difference]: Finished difference. Result has 100 places, 110 transitions, 420 flow [2023-08-29 17:21:26,121 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2471, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=420, PETRI_PLACES=100, PETRI_TRANSITIONS=110} [2023-08-29 17:21:26,124 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -65 predicate places. [2023-08-29 17:21:26,124 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 110 transitions, 420 flow [2023-08-29 17:21:26,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1026.3333333333333) internal successors, (3079), 3 states have internal predecessors, (3079), 0 states have call successors, (0), 0 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 17:21:26,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:21:26,125 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] [2023-08-29 17:21:26,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:21:26,127 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_setErr11ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 17:21:26,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:21:26,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2015509116, now seen corresponding path program 1 times [2023-08-29 17:21:26,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:21:26,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305312891] [2023-08-29 17:21:26,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:21:26,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:21:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:21:26,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:21:26,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:21:26,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305312891] [2023-08-29 17:21:26,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305312891] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:21:26,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:21:26,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:21:26,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941760640] [2023-08-29 17:21:26,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:21:26,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:21:26,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:21:26,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:21:26,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:21:26,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1063 out of 2471 [2023-08-29 17:21:26,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 110 transitions, 420 flow. Second operand has 3 states, 3 states have (on average 1069.6666666666667) internal successors, (3209), 3 states have internal predecessors, (3209), 0 states have call successors, (0), 0 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 17:21:26,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:21:26,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1063 of 2471 [2023-08-29 17:21:26,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:21:27,415 INFO L130 PetriNetUnfolder]: 842/2235 cut-off events. [2023-08-29 17:21:27,415 INFO L131 PetriNetUnfolder]: For 1137/1501 co-relation queries the response was YES. [2023-08-29 17:21:27,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5232 conditions, 2235 events. 842/2235 cut-off events. For 1137/1501 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 14574 event pairs, 358 based on Foata normal form. 76/2232 useless extension candidates. Maximal degree in co-relation 5221. Up to 895 conditions per place. [2023-08-29 17:21:27,429 INFO L137 encePairwiseOnDemand]: 2469/2471 looper letters, 72 selfloop transitions, 1 changer transitions 0/120 dead transitions. [2023-08-29 17:21:27,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 120 transitions, 596 flow [2023-08-29 17:21:27,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:21:27,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:21:27,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3249 transitions. [2023-08-29 17:21:27,435 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43828409550789155 [2023-08-29 17:21:27,435 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3249 transitions. [2023-08-29 17:21:27,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3249 transitions. [2023-08-29 17:21:27,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:21:27,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3249 transitions. [2023-08-29 17:21:27,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1083.0) internal successors, (3249), 3 states have internal predecessors, (3249), 0 states have call successors, (0), 0 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 17:21:27,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2471.0) internal successors, (9884), 4 states have internal predecessors, (9884), 0 states have call successors, (0), 0 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 17:21:27,447 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2471.0) internal successors, (9884), 4 states have internal predecessors, (9884), 0 states have call successors, (0), 0 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 17:21:27,448 INFO L175 Difference]: Start difference. First operand has 100 places, 110 transitions, 420 flow. Second operand 3 states and 3249 transitions. [2023-08-29 17:21:27,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 120 transitions, 596 flow [2023-08-29 17:21:27,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 120 transitions, 572 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-29 17:21:27,456 INFO L231 Difference]: Finished difference. Result has 100 places, 109 transitions, 396 flow [2023-08-29 17:21:27,456 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2471, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=100, PETRI_TRANSITIONS=109} [2023-08-29 17:21:27,457 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -65 predicate places. [2023-08-29 17:21:27,457 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 109 transitions, 396 flow [2023-08-29 17:21:27,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1069.6666666666667) internal successors, (3209), 3 states have internal predecessors, (3209), 0 states have call successors, (0), 0 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 17:21:27,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:21:27,458 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 17:21:27,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 17:21:27,458 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_setErr10ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 17:21:27,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:21:27,459 INFO L85 PathProgramCache]: Analyzing trace with hash 240101047, now seen corresponding path program 1 times [2023-08-29 17:21:27,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:21:27,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322086290] [2023-08-29 17:21:27,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:21:27,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:21:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:21:28,216 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 17:21:28,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:21:28,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322086290] [2023-08-29 17:21:28,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322086290] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:21:28,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:21:28,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:21:28,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222447321] [2023-08-29 17:21:28,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:21:28,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:21:28,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:21:28,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:21:28,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:21:28,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1074 out of 2471 [2023-08-29 17:21:28,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 109 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 1080.6666666666667) internal successors, (3242), 3 states have internal predecessors, (3242), 0 states have call successors, (0), 0 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 17:21:28,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:21:28,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1074 of 2471 [2023-08-29 17:21:28,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:21:28,891 INFO L130 PetriNetUnfolder]: 768/2157 cut-off events. [2023-08-29 17:21:28,891 INFO L131 PetriNetUnfolder]: For 856/1172 co-relation queries the response was YES. [2023-08-29 17:21:28,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4886 conditions, 2157 events. 768/2157 cut-off events. For 856/1172 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 14400 event pairs, 455 based on Foata normal form. 60/2130 useless extension candidates. Maximal degree in co-relation 4875. Up to 1165 conditions per place. [2023-08-29 17:21:28,903 INFO L137 encePairwiseOnDemand]: 2467/2471 looper letters, 60 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2023-08-29 17:21:28,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 110 transitions, 522 flow [2023-08-29 17:21:28,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:21:28,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:21:28,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3274 transitions. [2023-08-29 17:21:28,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44165654930527454 [2023-08-29 17:21:28,909 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3274 transitions. [2023-08-29 17:21:28,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3274 transitions. [2023-08-29 17:21:28,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:21:28,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3274 transitions. [2023-08-29 17:21:28,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 0 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 17:21:28,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2471.0) internal successors, (9884), 4 states have internal predecessors, (9884), 0 states have call successors, (0), 0 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 17:21:28,921 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2471.0) internal successors, (9884), 4 states have internal predecessors, (9884), 0 states have call successors, (0), 0 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 17:21:28,921 INFO L175 Difference]: Start difference. First operand has 100 places, 109 transitions, 396 flow. Second operand 3 states and 3274 transitions. [2023-08-29 17:21:28,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 110 transitions, 522 flow [2023-08-29 17:21:28,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 110 transitions, 521 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:21:28,928 INFO L231 Difference]: Finished difference. Result has 102 places, 110 transitions, 409 flow [2023-08-29 17:21:28,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2471, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=409, PETRI_PLACES=102, PETRI_TRANSITIONS=110} [2023-08-29 17:21:28,929 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -63 predicate places. [2023-08-29 17:21:28,929 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 110 transitions, 409 flow [2023-08-29 17:21:28,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1080.6666666666667) internal successors, (3242), 3 states have internal predecessors, (3242), 0 states have call successors, (0), 0 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 17:21:28,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:21:28,930 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 17:21:28,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 17:21:28,931 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_setErr10ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 17:21:28,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:21:28,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1414910557, now seen corresponding path program 1 times [2023-08-29 17:21:28,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:21:28,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861607124] [2023-08-29 17:21:28,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:21:28,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:21:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:21:29,430 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 17:21:29,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:21:29,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861607124] [2023-08-29 17:21:29,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861607124] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:21:29,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301561749] [2023-08-29 17:21:29,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:21:29,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:21:29,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:21:29,437 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 17:21:29,469 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 17:21:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:21:30,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 246 conjunts are in the unsatisfiable core [2023-08-29 17:21:30,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:21:30,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 17:21:30,946 INFO L217 Elim1Store]: Index analysis took 112 ms [2023-08-29 17:21:37,613 WARN L222 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 1290 DAG size of output: 297 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-08-29 17:21:37,619 INFO L321 Elim1Store]: treesize reduction 9085, result has 6.8 percent of original size [2023-08-29 17:21:37,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 95 case distinctions, treesize of input 490 treesize of output 1063 [2023-08-29 17:22:13,192 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-29 17:22:13,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2023-08-29 17:22:13,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-29 17:22:13,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-29 17:22:13,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 17:22:13,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 17:22:13,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301561749] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:22:13,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 17:22:13,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2023-08-29 17:22:13,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921695914] [2023-08-29 17:22:13,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:22:13,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:22:13,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:22:13,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:22:13,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-29 17:22:13,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1006 out of 2471 [2023-08-29 17:22:13,843 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 110 transitions, 409 flow. Second operand has 6 states, 6 states have (on average 1012.5) internal successors, (6075), 6 states have internal predecessors, (6075), 0 states have call successors, (0), 0 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 17:22:13,843 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:22:13,843 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1006 of 2471 [2023-08-29 17:22:13,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:22:15,382 INFO L130 PetriNetUnfolder]: 3929/6677 cut-off events. [2023-08-29 17:22:15,382 INFO L131 PetriNetUnfolder]: For 6964/7042 co-relation queries the response was YES. [2023-08-29 17:22:15,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19007 conditions, 6677 events. 3929/6677 cut-off events. For 6964/7042 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 34528 event pairs, 3308 based on Foata normal form. 0/6557 useless extension candidates. Maximal degree in co-relation 18995. Up to 6140 conditions per place. [2023-08-29 17:22:15,422 INFO L137 encePairwiseOnDemand]: 2463/2471 looper letters, 97 selfloop transitions, 21 changer transitions 0/128 dead transitions. [2023-08-29 17:22:15,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 128 transitions, 721 flow [2023-08-29 17:22:15,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 17:22:15,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 17:22:15,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5123 transitions. [2023-08-29 17:22:15,431 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41464993929583166 [2023-08-29 17:22:15,431 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 5123 transitions. [2023-08-29 17:22:15,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5123 transitions. [2023-08-29 17:22:15,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:22:15,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 5123 transitions. [2023-08-29 17:22:15,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1024.6) internal successors, (5123), 5 states have internal predecessors, (5123), 0 states have call successors, (0), 0 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 17:22:15,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 2471.0) internal successors, (14826), 6 states have internal predecessors, (14826), 0 states have call successors, (0), 0 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 17:22:15,449 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 2471.0) internal successors, (14826), 6 states have internal predecessors, (14826), 0 states have call successors, (0), 0 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 17:22:15,449 INFO L175 Difference]: Start difference. First operand has 102 places, 110 transitions, 409 flow. Second operand 5 states and 5123 transitions. [2023-08-29 17:22:15,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 128 transitions, 721 flow [2023-08-29 17:22:15,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 128 transitions, 717 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 17:22:15,469 INFO L231 Difference]: Finished difference. Result has 106 places, 114 transitions, 497 flow [2023-08-29 17:22:15,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2471, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=497, PETRI_PLACES=106, PETRI_TRANSITIONS=114} [2023-08-29 17:22:15,470 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -59 predicate places. [2023-08-29 17:22:15,470 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 114 transitions, 497 flow [2023-08-29 17:22:15,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1012.5) internal successors, (6075), 6 states have internal predecessors, (6075), 0 states have call successors, (0), 0 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 17:22:15,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:22:15,471 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, 1, 1] [2023-08-29 17:22:15,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 17:22:15,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-08-29 17:22:15,682 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONDATA_RACE, whoop_wrapper_pc8736x_gpio_currentErr1ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 17:22:15,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:22:15,682 INFO L85 PathProgramCache]: Analyzing trace with hash 797907689, now seen corresponding path program 1 times [2023-08-29 17:22:15,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:22:15,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384161107] [2023-08-29 17:22:15,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:22:15,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:22:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:22:16,416 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 17:22:16,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:22:16,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384161107] [2023-08-29 17:22:16,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384161107] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:22:16,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102846920] [2023-08-29 17:22:16,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:22:16,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:22:16,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:22:16,418 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 17:22:16,421 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 17:22:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:22:17,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-29 17:22:17,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:22:17,453 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 17:22:17,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 17:22:17,475 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 17:22:17,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102846920] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 17:22:17,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 17:22:17,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-29 17:22:17,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242626292] [2023-08-29 17:22:17,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 17:22:17,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 17:22:17,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:22:17,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 17:22:17,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-08-29 17:22:17,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 2471 [2023-08-29 17:22:17,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 114 transitions, 497 flow. Second operand has 8 states, 8 states have (on average 1073.625) internal successors, (8589), 8 states have internal predecessors, (8589), 0 states have call successors, (0), 0 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 17:22:17,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:22:17,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 2471 [2023-08-29 17:22:17,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:22:18,388 INFO L130 PetriNetUnfolder]: 738/2096 cut-off events. [2023-08-29 17:22:18,388 INFO L131 PetriNetUnfolder]: For 1757/2103 co-relation queries the response was YES. [2023-08-29 17:22:18,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5272 conditions, 2096 events. 738/2096 cut-off events. For 1757/2103 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 13904 event pairs, 454 based on Foata normal form. 38/2048 useless extension candidates. Maximal degree in co-relation 5259. Up to 1165 conditions per place. [2023-08-29 17:22:18,400 INFO L137 encePairwiseOnDemand]: 2464/2471 looper letters, 60 selfloop transitions, 8 changer transitions 0/119 dead transitions. [2023-08-29 17:22:18,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 119 transitions, 649 flow [2023-08-29 17:22:18,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:22:18,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:22:18,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6483 transitions. [2023-08-29 17:22:18,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43727235936867664 [2023-08-29 17:22:18,411 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6483 transitions. [2023-08-29 17:22:18,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6483 transitions. [2023-08-29 17:22:18,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:22:18,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6483 transitions. [2023-08-29 17:22:18,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1080.5) internal successors, (6483), 6 states have internal predecessors, (6483), 0 states have call successors, (0), 0 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 17:22:18,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2471.0) internal successors, (17297), 7 states have internal predecessors, (17297), 0 states have call successors, (0), 0 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 17:22:18,431 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2471.0) internal successors, (17297), 7 states have internal predecessors, (17297), 0 states have call successors, (0), 0 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 17:22:18,431 INFO L175 Difference]: Start difference. First operand has 106 places, 114 transitions, 497 flow. Second operand 6 states and 6483 transitions. [2023-08-29 17:22:18,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 119 transitions, 649 flow [2023-08-29 17:22:18,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 119 transitions, 625 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 17:22:18,438 INFO L231 Difference]: Finished difference. Result has 111 places, 119 transitions, 535 flow [2023-08-29 17:22:18,438 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2471, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=535, PETRI_PLACES=111, PETRI_TRANSITIONS=119} [2023-08-29 17:22:18,439 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -54 predicate places. [2023-08-29 17:22:18,439 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 119 transitions, 535 flow [2023-08-29 17:22:18,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1073.625) internal successors, (8589), 8 states have internal predecessors, (8589), 0 states have call successors, (0), 0 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 17:22:18,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:22:18,440 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, 1, 1] [2023-08-29 17:22:18,453 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 17:22:18,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-08-29 17:22:18,651 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 101 more)] === [2023-08-29 17:22:18,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:22:18,652 INFO L85 PathProgramCache]: Analyzing trace with hash -974903461, now seen corresponding path program 2 times [2023-08-29 17:22:18,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:22:18,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536847251] [2023-08-29 17:22:18,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:22:18,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:22:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:22:19,312 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 17:22:19,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:22:19,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536847251] [2023-08-29 17:22:19,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536847251] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:22:19,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444507429] [2023-08-29 17:22:19,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 17:22:19,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:22:19,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:22:19,318 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 17:22:19,343 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 17:22:22,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-29 17:22:22,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 17:22:22,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-29 17:22:22,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:22:22,541 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 17:22:22,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 17:22:22,626 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 17:22:22,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444507429] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 17:22:22,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 17:22:22,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-08-29 17:22:22,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154802559] [2023-08-29 17:22:22,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 17:22:22,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-29 17:22:22,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:22:22,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-29 17:22:22,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2023-08-29 17:22:23,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 2471 [2023-08-29 17:22:23,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 119 transitions, 535 flow. Second operand has 15 states, 15 states have (on average 1072.4) internal successors, (16086), 15 states have internal predecessors, (16086), 0 states have call successors, (0), 0 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 17:22:23,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:22:23,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 2471 [2023-08-29 17:22:23,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:22:24,499 INFO L130 PetriNetUnfolder]: 738/2105 cut-off events. [2023-08-29 17:22:24,499 INFO L131 PetriNetUnfolder]: For 1457/1803 co-relation queries the response was YES. [2023-08-29 17:22:24,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5161 conditions, 2105 events. 738/2105 cut-off events. For 1457/1803 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 13926 event pairs, 454 based on Foata normal form. 47/2068 useless extension candidates. Maximal degree in co-relation 5145. Up to 1165 conditions per place. [2023-08-29 17:22:24,513 INFO L137 encePairwiseOnDemand]: 2464/2471 looper letters, 60 selfloop transitions, 17 changer transitions 0/128 dead transitions. [2023-08-29 17:22:24,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 128 transitions, 737 flow [2023-08-29 17:22:24,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:22:24,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:22:24,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12919 transitions. [2023-08-29 17:22:24,535 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43568730608390666 [2023-08-29 17:22:24,535 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 12919 transitions. [2023-08-29 17:22:24,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 12919 transitions. [2023-08-29 17:22:24,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:22:24,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 12919 transitions. [2023-08-29 17:22:24,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 1076.5833333333333) internal successors, (12919), 12 states have internal predecessors, (12919), 0 states have call successors, (0), 0 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 17:22:24,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 2471.0) internal successors, (32123), 13 states have internal predecessors, (32123), 0 states have call successors, (0), 0 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 17:22:24,584 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 2471.0) internal successors, (32123), 13 states have internal predecessors, (32123), 0 states have call successors, (0), 0 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 17:22:24,584 INFO L175 Difference]: Start difference. First operand has 111 places, 119 transitions, 535 flow. Second operand 12 states and 12919 transitions. [2023-08-29 17:22:24,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 128 transitions, 737 flow [2023-08-29 17:22:24,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 128 transitions, 727 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-29 17:22:24,592 INFO L231 Difference]: Finished difference. Result has 127 places, 128 transitions, 663 flow [2023-08-29 17:22:24,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2471, PETRI_DIFFERENCE_MINUEND_FLOW=525, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=663, PETRI_PLACES=127, PETRI_TRANSITIONS=128} [2023-08-29 17:22:24,593 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -38 predicate places. [2023-08-29 17:22:24,593 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 128 transitions, 663 flow [2023-08-29 17:22:24,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1072.4) internal successors, (16086), 15 states have internal predecessors, (16086), 0 states have call successors, (0), 0 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 17:22:24,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:22:24,595 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, 1, 1] [2023-08-29 17:22:24,609 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 17:22:24,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:22:24,809 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 101 more)] === [2023-08-29 17:22:24,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:22:24,809 INFO L85 PathProgramCache]: Analyzing trace with hash 146976105, now seen corresponding path program 3 times [2023-08-29 17:22:24,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:22:24,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23184181] [2023-08-29 17:22:24,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:22:24,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:22:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:22:25,937 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 17:22:25,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:22:25,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23184181] [2023-08-29 17:22:25,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23184181] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:22:25,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783465751] [2023-08-29 17:22:25,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-29 17:22:25,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:22:25,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:22:25,938 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 17:22:25,939 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 17:22:47,140 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-29 17:22:47,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 17:22:47,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 1533 conjuncts, 32 conjunts are in the unsatisfiable core [2023-08-29 17:22:47,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:22:47,351 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 17:22:47,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 17:22:47,854 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 17:22:47,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783465751] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 17:22:47,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 17:22:47,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 30 [2023-08-29 17:22:47,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230929829] [2023-08-29 17:22:47,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 17:22:47,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-29 17:22:47,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:22:47,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-29 17:22:47,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=626, Unknown=0, NotChecked=0, Total=930 [2023-08-29 17:22:52,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 2471 [2023-08-29 17:22:52,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 128 transitions, 663 flow. Second operand has 31 states, 31 states have (on average 1071.6774193548388) internal successors, (33222), 31 states have internal predecessors, (33222), 0 states have call successors, (0), 0 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 17:22:52,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:22:52,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 2471 [2023-08-29 17:22:52,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:23:13,948 WARN L222 SmtUtils]: Spent 17.73s 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 17:23:30,384 WARN L222 SmtUtils]: Spent 14.35s 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 17:23:44,439 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 17:23:46,132 INFO L130 PetriNetUnfolder]: 738/2123 cut-off events. [2023-08-29 17:23:46,132 INFO L131 PetriNetUnfolder]: For 1964/2310 co-relation queries the response was YES. [2023-08-29 17:23:46,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5292 conditions, 2123 events. 738/2123 cut-off events. For 1964/2310 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 13968 event pairs, 454 based on Foata normal form. 56/2095 useless extension candidates. Maximal degree in co-relation 5269. Up to 1160 conditions per place. [2023-08-29 17:23:46,144 INFO L137 encePairwiseOnDemand]: 2464/2471 looper letters, 57 selfloop transitions, 38 changer transitions 0/146 dead transitions. [2023-08-29 17:23:46,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 146 transitions, 985 flow [2023-08-29 17:23:46,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-08-29 17:23:46,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-08-29 17:23:46,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26862 transitions. [2023-08-29 17:23:46,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4348360987454472 [2023-08-29 17:23:46,173 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 26862 transitions. [2023-08-29 17:23:46,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 26862 transitions. [2023-08-29 17:23:46,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:23:46,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 26862 transitions. [2023-08-29 17:23:46,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 1074.48) internal successors, (26862), 25 states have internal predecessors, (26862), 0 states have call successors, (0), 0 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 17:23:46,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 2471.0) internal successors, (64246), 26 states have internal predecessors, (64246), 0 states have call successors, (0), 0 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 17:23:46,254 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 2471.0) internal successors, (64246), 26 states have internal predecessors, (64246), 0 states have call successors, (0), 0 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 17:23:46,254 INFO L175 Difference]: Start difference. First operand has 127 places, 128 transitions, 663 flow. Second operand 25 states and 26862 transitions. [2023-08-29 17:23:46,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 146 transitions, 985 flow [2023-08-29 17:23:46,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 146 transitions, 909 flow, removed 36 selfloop flow, removed 2 redundant places. [2023-08-29 17:23:46,263 INFO L231 Difference]: Finished difference. Result has 149 places, 146 transitions, 799 flow [2023-08-29 17:23:46,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2471, PETRI_DIFFERENCE_MINUEND_FLOW=623, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=799, PETRI_PLACES=149, PETRI_TRANSITIONS=146} [2023-08-29 17:23:46,263 INFO L281 CegarLoopForPetriNet]: 165 programPoint places, -16 predicate places. [2023-08-29 17:23:46,264 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 146 transitions, 799 flow [2023-08-29 17:23:46,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1071.6774193548388) internal successors, (33222), 31 states have internal predecessors, (33222), 0 states have call successors, (0), 0 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 17:23:46,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:23:46,268 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, 1, 1] [2023-08-29 17:23:46,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-29 17:23:46,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:23:46,488 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 101 more)] === [2023-08-29 17:23:46,489 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:23:46,489 INFO L85 PathProgramCache]: Analyzing trace with hash 406575593, now seen corresponding path program 4 times [2023-08-29 17:23:46,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:23:46,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525549117] [2023-08-29 17:23:46,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:23:46,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:23:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:23:49,259 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 17:23:49,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:23:49,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525549117] [2023-08-29 17:23:49,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525549117] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:23:49,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893109696] [2023-08-29 17:23:49,260 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-29 17:23:49,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:23:49,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:23:49,265 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:23:49,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-29 17:23:51,619 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-29 17:23:51,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 17:23:51,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 1785 conjuncts, 51 conjunts are in the unsatisfiable core [2023-08-29 17:23:51,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:23:51,767 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 17:23:51,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 17:23:52,865 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 17:23:52,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893109696] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 17:23:52,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 17:23:52,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2023-08-29 17:23:52,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814767796] [2023-08-29 17:23:52,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 17:23:52,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-08-29 17:23:52,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:23:52,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-08-29 17:23:52,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=670, Invalid=1682, Unknown=0, NotChecked=0, Total=2352 [2023-08-29 17:24:00,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 2471 [2023-08-29 17:24:00,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 146 transitions, 799 flow. Second operand has 49 states, 49 states have (on average 1071.4285714285713) internal successors, (52500), 49 states have internal predecessors, (52500), 0 states have call successors, (0), 0 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 17:24:00,532 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:24:00,532 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 2471 [2023-08-29 17:24:00,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:24:06,255 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| 22) 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 [2023-08-29 17:25:36,857 WARN L222 SmtUtils]: Spent 59.41s on a formula simplification that was a NOOP. DAG size: 91 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Killed by 15