./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_generic_nvram_nvram_unlocked_ioctl_write_nvram.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1941de74eb261e3f3ecbbb76e1746df74b536a1b8190d4ca9fd6a4341892fdcb --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 10:13:05,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 10:13:05,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 10:13:05,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 10:13:05,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 10:13:05,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 10:13:05,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 10:13:05,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 10:13:05,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 10:13:05,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 10:13:05,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 10:13:05,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 10:13:05,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 10:13:05,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 10:13:05,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 10:13:05,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 10:13:05,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 10:13:05,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 10:13:05,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 10:13:05,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 10:13:05,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 10:13:05,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 10:13:05,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 10:13:05,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 10:13:05,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 10:13:05,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 10:13:05,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 10:13:05,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 10:13:05,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 10:13:05,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 10:13:05,394 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 10:13:05,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 10:13:05,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 10:13:05,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 10:13:05,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 10:13:05,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 10:13:05,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 10:13:05,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 10:13:05,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 10:13:05,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 10:13:05,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 10:13:05,403 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-09-01 10:13:05,440 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 10:13:05,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 10:13:05,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 10:13:05,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 10:13:05,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 10:13:05,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 10:13:05,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 10:13:05,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 10:13:05,443 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 10:13:05,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 10:13:05,444 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 10:13:05,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 10:13:05,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 10:13:05,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 10:13:05,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 10:13:05,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 10:13:05,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 10:13:05,445 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 10:13:05,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 10:13:05,446 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 10:13:05,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 10:13:05,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 10:13:05,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 10:13:05,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 10:13:05,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:13:05,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 10:13:05,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 10:13:05,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 10:13:05,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 10:13:05,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 10:13:05,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 10:13:05,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 10:13:05,448 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 10:13:05,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 10:13:05,449 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 10:13:05,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1941de74eb261e3f3ecbbb76e1746df74b536a1b8190d4ca9fd6a4341892fdcb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 10:13:05,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 10:13:05,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 10:13:05,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 10:13:05,763 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 10:13:05,763 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 10:13:05,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2023-09-01 10:13:06,833 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 10:13:07,342 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 10:13:07,342 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2023-09-01 10:13:07,381 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0774d61af/1e2c15aa546c4b6487b5865e6bbc8ce1/FLAG59ac083c5 [2023-09-01 10:13:07,398 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0774d61af/1e2c15aa546c4b6487b5865e6bbc8ce1 [2023-09-01 10:13:07,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 10:13:07,401 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 10:13:07,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 10:13:07,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 10:13:07,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 10:13:07,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:13:07" (1/1) ... [2023-09-01 10:13:07,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d7f3c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:13:07, skipping insertion in model container [2023-09-01 10:13:07,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:13:07" (1/1) ... [2023-09-01 10:13:07,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 10:13:07,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 10:13:07,800 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_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2023-09-01 10:13:10,419 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-09-01 10:13:10,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:13:10,904 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 10:13:10,931 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_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2023-09-01 10:13:11,110 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-09-01 10:13:11,172 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:13:11,774 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:13:11,775 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:13:11,775 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:13:11,775 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:13:11,775 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:13:11,775 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:13:11,776 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:13:11,806 INFO L208 MainTranslator]: Completed translation [2023-09-01 10:13:11,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:13:11 WrapperNode [2023-09-01 10:13:11,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 10:13:11,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 10:13:11,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 10:13:11,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 10:13:11,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:13:11" (1/1) ... [2023-09-01 10:13:11,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:13:11" (1/1) ... [2023-09-01 10:13:11,964 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 323 [2023-09-01 10:13:11,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 10:13:11,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 10:13:11,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 10:13:11,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 10:13:11,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:13:11" (1/1) ... [2023-09-01 10:13:11,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:13:11" (1/1) ... [2023-09-01 10:13:11,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:13:11" (1/1) ... [2023-09-01 10:13:11,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:13:11" (1/1) ... [2023-09-01 10:13:11,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:13:11" (1/1) ... [2023-09-01 10:13:11,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:13:11" (1/1) ... [2023-09-01 10:13:11,998 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:13:11" (1/1) ... [2023-09-01 10:13:12,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:13:11" (1/1) ... [2023-09-01 10:13:12,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 10:13:12,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 10:13:12,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 10:13:12,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 10:13:12,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:13:11" (1/1) ... [2023-09-01 10:13:12,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:13:12,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 10:13:12,049 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) [2023-09-01 10:13:12,074 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 [2023-09-01 10:13:12,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 10:13:12,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-01 10:13:12,090 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2023-09-01 10:13:12,090 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2023-09-01 10:13:12,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 10:13:12,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 10:13:12,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 10:13:12,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-09-01 10:13:12,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 10:13:12,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 10:13:12,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 10:13:12,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 10:13:12,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 10:13:12,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-09-01 10:13:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2023-09-01 10:13:12,092 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2023-09-01 10:13:12,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 10:13:12,093 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 10:13:12,605 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 10:13:12,608 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 10:13:13,106 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 10:13:13,130 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 10:13:13,130 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-09-01 10:13:13,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:13:13 BoogieIcfgContainer [2023-09-01 10:13:13,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 10:13:13,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 10:13:13,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 10:13:13,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 10:13:13,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 10:13:07" (1/3) ... [2023-09-01 10:13:13,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2518c9b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:13:13, skipping insertion in model container [2023-09-01 10:13:13,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:13:11" (2/3) ... [2023-09-01 10:13:13,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2518c9b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:13:13, skipping insertion in model container [2023-09-01 10:13:13,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:13:13" (3/3) ... [2023-09-01 10:13:13,139 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2023-09-01 10:13:13,146 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 10:13:13,152 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 10:13:13,152 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-01 10:13:13,152 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 10:13:13,233 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-01 10:13:13,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 334 places, 338 transitions, 692 flow [2023-09-01 10:13:13,405 INFO L130 PetriNetUnfolder]: 11/336 cut-off events. [2023-09-01 10:13:13,406 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 10:13:13,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 336 events. 11/336 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 298 event pairs, 0 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 281. Up to 4 conditions per place. [2023-09-01 10:13:13,413 INFO L82 GeneralOperation]: Start removeDead. Operand has 334 places, 338 transitions, 692 flow [2023-09-01 10:13:13,419 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 328 transitions, 665 flow [2023-09-01 10:13:13,422 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 10:13:13,430 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 324 places, 328 transitions, 665 flow [2023-09-01 10:13:13,433 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 324 places, 328 transitions, 665 flow [2023-09-01 10:13:13,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 324 places, 328 transitions, 665 flow [2023-09-01 10:13:13,502 INFO L130 PetriNetUnfolder]: 11/328 cut-off events. [2023-09-01 10:13:13,502 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 10:13:13,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 328 events. 11/328 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 280 event pairs, 0 based on Foata normal form. 0/316 useless extension candidates. Maximal degree in co-relation 281. Up to 4 conditions per place. [2023-09-01 10:13:13,509 INFO L119 LiptonReduction]: Number of co-enabled transitions 9684 [2023-09-01 10:15:54,752 WARN L222 SmtUtils]: Spent 1.98m on a formula simplification. DAG size of input: 566 DAG size of output: 562 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 10:16:46,362 WARN L222 SmtUtils]: Spent 51.60s on a formula simplification that was a NOOP. DAG size: 506 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 10:18:48,049 WARN L222 SmtUtils]: Spent 2.03m on a formula simplification. DAG size of input: 580 DAG size of output: 574 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 10:19:17,668 WARN L222 SmtUtils]: Spent 29.61s on a formula simplification that was a NOOP. DAG size: 517 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 10:19:17,671 INFO L134 LiptonReduction]: Checked pairs total: 8871 [2023-09-01 10:19:17,671 INFO L136 LiptonReduction]: Total number of compositions: 371 [2023-09-01 10:19:17,683 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 10:19:17,687 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;@3a480e57, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 10:19:17,688 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-09-01 10:19:17,699 INFO L130 PetriNetUnfolder]: 3/14 cut-off events. [2023-09-01 10:19:17,700 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 10:19:17,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:19:17,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 10:19:17,701 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-09-01 10:19:17,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:19:17,705 INFO L85 PathProgramCache]: Analyzing trace with hash -896316476, now seen corresponding path program 1 times [2023-09-01 10:19:17,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:19:17,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037596068] [2023-09-01 10:19:17,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:19:17,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:19:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:19:18,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:19:18,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:19:18,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037596068] [2023-09-01 10:19:18,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037596068] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:19:18,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:19:18,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 10:19:18,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209218499] [2023-09-01 10:19:18,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:19:18,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 10:19:18,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:19:18,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 10:19:18,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 10:19:18,893 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 709 [2023-09-01 10:19:18,897 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 317.0) internal successors, (951), 3 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:18,897 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:19:18,897 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 709 [2023-09-01 10:19:18,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:19:19,121 INFO L130 PetriNetUnfolder]: 87/162 cut-off events. [2023-09-01 10:19:19,121 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-09-01 10:19:19,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 162 events. 87/162 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 476 event pairs, 39 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 296. Up to 126 conditions per place. [2023-09-01 10:19:19,123 INFO L137 encePairwiseOnDemand]: 703/709 looper letters, 13 selfloop transitions, 4 changer transitions 8/25 dead transitions. [2023-09-01 10:19:19,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 25 transitions, 115 flow [2023-09-01 10:19:19,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 10:19:19,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 10:19:19,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 971 transitions. [2023-09-01 10:19:19,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45651151857075695 [2023-09-01 10:19:19,141 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 971 transitions. [2023-09-01 10:19:19,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 971 transitions. [2023-09-01 10:19:19,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:19:19,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 971 transitions. [2023-09-01 10:19:19,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 323.6666666666667) internal successors, (971), 3 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:19,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:19,162 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:19,164 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 43 flow. Second operand 3 states and 971 transitions. [2023-09-01 10:19:19,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 25 transitions, 115 flow [2023-09-01 10:19:19,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 25 transitions, 107 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 10:19:19,168 INFO L231 Difference]: Finished difference. Result has 21 places, 15 transitions, 53 flow [2023-09-01 10:19:19,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=21, PETRI_TRANSITIONS=15} [2023-09-01 10:19:19,173 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 0 predicate places. [2023-09-01 10:19:19,173 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 53 flow [2023-09-01 10:19:19,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 317.0) internal successors, (951), 3 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:19,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:19:19,174 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:19:19,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 10:19:19,175 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-09-01 10:19:19,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:19:19,175 INFO L85 PathProgramCache]: Analyzing trace with hash -2016005571, now seen corresponding path program 1 times [2023-09-01 10:19:19,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:19:19,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357567128] [2023-09-01 10:19:19,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:19:19,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:19:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:19:21,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:19:21,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:19:21,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357567128] [2023-09-01 10:19:21,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357567128] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:19:21,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:19:21,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 10:19:21,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734004891] [2023-09-01 10:19:21,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:19:21,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 10:19:21,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:19:21,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 10:19:21,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-09-01 10:19:21,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 709 [2023-09-01 10:19:21,734 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 15 transitions, 53 flow. Second operand has 6 states, 6 states have (on average 311.1666666666667) internal successors, (1867), 6 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:21,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:19:21,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 709 [2023-09-01 10:19:21,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:19:22,175 INFO L130 PetriNetUnfolder]: 42/86 cut-off events. [2023-09-01 10:19:22,176 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-09-01 10:19:22,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 86 events. 42/86 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 243 event pairs, 2 based on Foata normal form. 3/89 useless extension candidates. Maximal degree in co-relation 162. Up to 60 conditions per place. [2023-09-01 10:19:22,177 INFO L137 encePairwiseOnDemand]: 703/709 looper letters, 16 selfloop transitions, 6 changer transitions 1/23 dead transitions. [2023-09-01 10:19:22,177 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 23 transitions, 127 flow [2023-09-01 10:19:22,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 10:19:22,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 10:19:22,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1573 transitions. [2023-09-01 10:19:22,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4437235543018336 [2023-09-01 10:19:22,183 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1573 transitions. [2023-09-01 10:19:22,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1573 transitions. [2023-09-01 10:19:22,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:19:22,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1573 transitions. [2023-09-01 10:19:22,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 314.6) internal successors, (1573), 5 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:22,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 709.0) internal successors, (4254), 6 states have internal predecessors, (4254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:22,197 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 709.0) internal successors, (4254), 6 states have internal predecessors, (4254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:22,198 INFO L175 Difference]: Start difference. First operand has 21 places, 15 transitions, 53 flow. Second operand 5 states and 1573 transitions. [2023-09-01 10:19:22,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 23 transitions, 127 flow [2023-09-01 10:19:22,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 23 transitions, 123 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 10:19:22,199 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 73 flow [2023-09-01 10:19:22,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=73, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2023-09-01 10:19:22,200 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2023-09-01 10:19:22,200 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 73 flow [2023-09-01 10:19:22,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 311.1666666666667) internal successors, (1867), 6 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:22,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:19:22,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:19:22,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 10:19:22,203 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-09-01 10:19:22,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:19:22,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1652804644, now seen corresponding path program 1 times [2023-09-01 10:19:22,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:19:22,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849344132] [2023-09-01 10:19:22,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:19:22,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:19:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:19:23,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:19:23,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:19:23,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849344132] [2023-09-01 10:19:23,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849344132] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:19:23,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:19:23,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 10:19:23,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117968385] [2023-09-01 10:19:23,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:19:23,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 10:19:23,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:19:23,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 10:19:23,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-09-01 10:19:23,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 709 [2023-09-01 10:19:23,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 73 flow. Second operand has 6 states, 6 states have (on average 314.5) internal successors, (1887), 6 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:23,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:19:23,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 709 [2023-09-01 10:19:23,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:19:23,742 INFO L130 PetriNetUnfolder]: 42/90 cut-off events. [2023-09-01 10:19:23,743 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2023-09-01 10:19:23,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 90 events. 42/90 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 262 event pairs, 8 based on Foata normal form. 4/94 useless extension candidates. Maximal degree in co-relation 162. Up to 59 conditions per place. [2023-09-01 10:19:23,745 INFO L137 encePairwiseOnDemand]: 704/709 looper letters, 8 selfloop transitions, 4 changer transitions 12/24 dead transitions. [2023-09-01 10:19:23,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 24 transitions, 151 flow [2023-09-01 10:19:23,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 10:19:23,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 10:19:23,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1588 transitions. [2023-09-01 10:19:23,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4479548660084626 [2023-09-01 10:19:23,753 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1588 transitions. [2023-09-01 10:19:23,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1588 transitions. [2023-09-01 10:19:23,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:19:23,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1588 transitions. [2023-09-01 10:19:23,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 317.6) internal successors, (1588), 5 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:23,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 709.0) internal successors, (4254), 6 states have internal predecessors, (4254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:23,767 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 709.0) internal successors, (4254), 6 states have internal predecessors, (4254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:23,767 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 73 flow. Second operand 5 states and 1588 transitions. [2023-09-01 10:19:23,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 24 transitions, 151 flow [2023-09-01 10:19:23,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 24 transitions, 143 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 10:19:23,770 INFO L231 Difference]: Finished difference. Result has 24 places, 12 transitions, 55 flow [2023-09-01 10:19:23,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=55, PETRI_PLACES=24, PETRI_TRANSITIONS=12} [2023-09-01 10:19:23,771 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 3 predicate places. [2023-09-01 10:19:23,772 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 12 transitions, 55 flow [2023-09-01 10:19:23,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 314.5) internal successors, (1887), 6 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:23,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:19:23,773 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:19:23,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 10:19:23,774 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-09-01 10:19:23,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:19:23,775 INFO L85 PathProgramCache]: Analyzing trace with hash -351331288, now seen corresponding path program 2 times [2023-09-01 10:19:23,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:19:23,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143122042] [2023-09-01 10:19:23,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:19:23,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:19:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:19:25,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:19:25,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:19:25,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143122042] [2023-09-01 10:19:25,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143122042] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:19:25,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:19:25,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 10:19:25,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561510930] [2023-09-01 10:19:25,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:19:25,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 10:19:25,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:19:25,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 10:19:25,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-09-01 10:19:25,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 709 [2023-09-01 10:19:25,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 12 transitions, 55 flow. Second operand has 7 states, 7 states have (on average 310.2857142857143) internal successors, (2172), 7 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:25,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:19:25,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 709 [2023-09-01 10:19:25,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:19:25,697 INFO L130 PetriNetUnfolder]: 3/15 cut-off events. [2023-09-01 10:19:25,698 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-09-01 10:19:25,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 15 events. 3/15 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 2 based on Foata normal form. 4/19 useless extension candidates. Maximal degree in co-relation 29. Up to 10 conditions per place. [2023-09-01 10:19:25,698 INFO L137 encePairwiseOnDemand]: 705/709 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-09-01 10:19:25,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 11 transitions, 69 flow [2023-09-01 10:19:25,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 10:19:25,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 10:19:25,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1557 transitions. [2023-09-01 10:19:25,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4392101551480959 [2023-09-01 10:19:25,703 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1557 transitions. [2023-09-01 10:19:25,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1557 transitions. [2023-09-01 10:19:25,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:19:25,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1557 transitions. [2023-09-01 10:19:25,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 311.4) internal successors, (1557), 5 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:25,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 709.0) internal successors, (4254), 6 states have internal predecessors, (4254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:25,716 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 709.0) internal successors, (4254), 6 states have internal predecessors, (4254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:25,717 INFO L175 Difference]: Start difference. First operand has 24 places, 12 transitions, 55 flow. Second operand 5 states and 1557 transitions. [2023-09-01 10:19:25,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 11 transitions, 69 flow [2023-09-01 10:19:25,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 11 transitions, 47 flow, removed 2 selfloop flow, removed 9 redundant places. [2023-09-01 10:19:25,718 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2023-09-01 10:19:25,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2023-09-01 10:19:25,719 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, -3 predicate places. [2023-09-01 10:19:25,719 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2023-09-01 10:19:25,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 310.2857142857143) internal successors, (2172), 7 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:19:25,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-09-01 10:19:25,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-09-01 10:19:25,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-09-01 10:19:25,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-09-01 10:19:25,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 10:19:25,724 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-09-01 10:19:25,729 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 10:19:25,729 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 10:19:25,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 10:19:25 BasicIcfg [2023-09-01 10:19:25,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 10:19:25,733 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 10:19:25,733 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 10:19:25,733 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 10:19:25,734 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:13:13" (3/4) ... [2023-09-01 10:19:25,736 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 10:19:25,740 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_write_nvram [2023-09-01 10:19:25,741 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_nvram_unlocked_ioctl [2023-09-01 10:19:25,746 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-09-01 10:19:25,746 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-09-01 10:19:25,747 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-09-01 10:19:25,747 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 10:19:25,747 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 10:19:25,800 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 10:19:25,800 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 10:19:25,801 INFO L158 Benchmark]: Toolchain (without parser) took 378400.09ms. Allocated memory was 79.7MB in the beginning and 247.5MB in the end (delta: 167.8MB). Free memory was 46.2MB in the beginning and 82.1MB in the end (delta: -35.9MB). Peak memory consumption was 133.9MB. Max. memory is 16.1GB. [2023-09-01 10:19:25,801 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 10:19:25,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4405.06ms. Allocated memory was 79.7MB in the beginning and 119.5MB in the end (delta: 39.8MB). Free memory was 46.0MB in the beginning and 39.4MB in the end (delta: 6.6MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2023-09-01 10:19:25,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 157.09ms. Allocated memory is still 119.5MB. Free memory was 38.7MB in the beginning and 63.1MB in the end (delta: -24.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-09-01 10:19:25,802 INFO L158 Benchmark]: Boogie Preprocessor took 40.93ms. Allocated memory is still 119.5MB. Free memory was 63.1MB in the beginning and 58.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 10:19:25,802 INFO L158 Benchmark]: RCFGBuilder took 1125.86ms. Allocated memory is still 119.5MB. Free memory was 58.9MB in the beginning and 47.5MB in the end (delta: 11.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-09-01 10:19:25,803 INFO L158 Benchmark]: TraceAbstraction took 372598.58ms. Allocated memory was 119.5MB in the beginning and 247.5MB in the end (delta: 127.9MB). Free memory was 46.7MB in the beginning and 86.4MB in the end (delta: -39.7MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. [2023-09-01 10:19:25,804 INFO L158 Benchmark]: Witness Printer took 67.50ms. Allocated memory is still 247.5MB. Free memory was 86.4MB in the beginning and 82.1MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 10:19:25,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4405.06ms. Allocated memory was 79.7MB in the beginning and 119.5MB in the end (delta: 39.8MB). Free memory was 46.0MB in the beginning and 39.4MB in the end (delta: 6.6MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 157.09ms. Allocated memory is still 119.5MB. Free memory was 38.7MB in the beginning and 63.1MB in the end (delta: -24.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.93ms. Allocated memory is still 119.5MB. Free memory was 63.1MB in the beginning and 58.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1125.86ms. Allocated memory is still 119.5MB. Free memory was 58.9MB in the beginning and 47.5MB in the end (delta: 11.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 372598.58ms. Allocated memory was 119.5MB in the beginning and 247.5MB in the end (delta: 127.9MB). Free memory was 46.7MB in the beginning and 86.4MB in the end (delta: -39.7MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. * Witness Printer took 67.50ms. Allocated memory is still 247.5MB. Free memory was 86.4MB in the beginning and 82.1MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 364.2s, 324 PlacesBefore, 21 PlacesAfterwards, 328 TransitionsBefore, 17 TransitionsAfterwards, 9684 CoEnabledTransitionPairs, 9 FixpointIterations, 185 TrivialSequentialCompositions, 133 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 26 ConcurrentYvCompositions, 8 ChoiceCompositions, 371 TotalNumberOfCompositions, 8871 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7643, independent: 7553, independent conditional: 0, independent unconditional: 7553, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5291, independent: 5256, independent conditional: 0, independent unconditional: 5256, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7643, independent: 2297, independent conditional: 0, independent unconditional: 2297, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 5291, unknown conditional: 0, unknown unconditional: 5291] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 456 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 372.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 364.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 757 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 499 mSDsluCounter, 196 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 156 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 966 IncrementalHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 40 mSDtfsCounter, 966 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 447 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 10:19:25,845 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE