./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 AFTER --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 AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 17:13:10,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 17:13:10,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 17:13:10,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 17:13:10,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 17:13:10,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 17:13:10,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 17:13:10,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 17:13:10,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 17:13:10,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 17:13:10,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 17:13:10,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 17:13:10,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 17:13:10,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 17:13:10,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 17:13:10,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 17:13:10,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 17:13:10,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 17:13:10,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 17:13:10,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 17:13:10,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 17:13:10,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 17:13:10,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 17:13:10,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 17:13:10,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 17:13:10,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 17:13:10,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 17:13:10,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 17:13:10,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 17:13:10,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 17:13:10,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 17:13:10,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 17:13:10,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 17:13:10,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 17:13:10,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 17:13:10,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 17:13:10,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 17:13:10,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 17:13:10,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 17:13:10,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 17:13:10,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 17:13:10,698 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 17:13:10,731 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 17:13:10,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 17:13:10,733 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 17:13:10,733 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 17:13:10,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 17:13:10,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 17:13:10,735 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 17:13:10,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 17:13:10,735 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 17:13:10,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 17:13:10,736 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 17:13:10,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 17:13:10,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 17:13:10,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 17:13:10,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 17:13:10,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 17:13:10,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 17:13:10,738 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 17:13:10,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 17:13:10,738 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 17:13:10,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 17:13:10,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 17:13:10,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 17:13:10,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 17:13:10,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:13:10,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 17:13:10,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 17:13:10,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 17:13:10,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 17:13:10,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 17:13:10,741 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 17:13:10,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 17:13:10,742 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 17:13:10,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 17:13:10,742 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 17:13:10,742 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1941de74eb261e3f3ecbbb76e1746df74b536a1b8190d4ca9fd6a4341892fdcb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 17:13:11,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 17:13:11,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 17:13:11,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 17:13:11,112 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 17:13:11,112 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 17:13:11,114 INFO L432 ainManager$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 [2023-08-30 17:13:12,275 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 17:13:12,746 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 17:13:12,747 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2023-08-30 17:13:12,786 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2695f7238/5186fbca7f0f42059bacc4c5b0db510a/FLAGb6f415842 [2023-08-30 17:13:12,802 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2695f7238/5186fbca7f0f42059bacc4c5b0db510a [2023-08-30 17:13:12,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 17:13:12,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 17:13:12,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 17:13:12,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 17:13:12,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 17:13:12,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:13:12" (1/1) ... [2023-08-30 17:13:12,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb79517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:12, skipping insertion in model container [2023-08-30 17:13:12,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:13:12" (1/1) ... [2023-08-30 17:13:12,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 17:13:12,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 17:13:13,208 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] [2023-08-30 17:13:15,798 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 17:13:16,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:13:16,344 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 17:13:16,359 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] [2023-08-30 17:13:16,532 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 17:13:16,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:13:17,548 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:13:17,548 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:13:17,548 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:13:17,548 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:13:17,548 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:13:17,549 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:13:17,549 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:13:17,555 INFO L208 MainTranslator]: Completed translation [2023-08-30 17:13:17,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:17 WrapperNode [2023-08-30 17:13:17,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 17:13:17,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 17:13:17,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 17:13:17,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 17:13:17,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:17" (1/1) ... [2023-08-30 17:13:17,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:17" (1/1) ... [2023-08-30 17:13:17,758 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 323 [2023-08-30 17:13:17,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 17:13:17,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 17:13:17,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 17:13:17,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 17:13:17,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:17" (1/1) ... [2023-08-30 17:13:17,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:17" (1/1) ... [2023-08-30 17:13:17,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:17" (1/1) ... [2023-08-30 17:13:17,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:17" (1/1) ... [2023-08-30 17:13:17,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:17" (1/1) ... [2023-08-30 17:13:17,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:17" (1/1) ... [2023-08-30 17:13:17,792 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:17" (1/1) ... [2023-08-30 17:13:17,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:17" (1/1) ... [2023-08-30 17:13:17,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 17:13:17,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 17:13:17,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 17:13:17,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 17:13:17,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:17" (1/1) ... [2023-08-30 17:13:17,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:13:17,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:13:17,830 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) [2023-08-30 17:13:17,855 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 [2023-08-30 17:13:17,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 17:13:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 17:13:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2023-08-30 17:13:17,867 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2023-08-30 17:13:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 17:13:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 17:13:17,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 17:13:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 17:13:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 17:13:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 17:13:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 17:13:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 17:13:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 17:13:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 17:13:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2023-08-30 17:13:17,869 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2023-08-30 17:13:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 17:13:17,870 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 17:13:18,378 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 17:13:18,380 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 17:13:18,903 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 17:13:18,936 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 17:13:18,936 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-30 17:13:18,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:13:18 BoogieIcfgContainer [2023-08-30 17:13:18,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 17:13:18,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 17:13:18,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 17:13:18,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 17:13:18,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:13:12" (1/3) ... [2023-08-30 17:13:18,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3ac634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:13:18, skipping insertion in model container [2023-08-30 17:13:18,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:17" (2/3) ... [2023-08-30 17:13:18,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3ac634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:13:18, skipping insertion in model container [2023-08-30 17:13:18,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:13:18" (3/3) ... [2023-08-30 17:13:18,949 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2023-08-30 17:13:18,956 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 17:13:18,965 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 17:13:18,965 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-30 17:13:18,965 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 17:13:19,132 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 17:13:19,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 334 places, 338 transitions, 692 flow [2023-08-30 17:13:19,331 INFO L130 PetriNetUnfolder]: 11/336 cut-off events. [2023-08-30 17:13:19,332 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 17:13:19,341 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. [2023-08-30 17:13:19,342 INFO L82 GeneralOperation]: Start removeDead. Operand has 334 places, 338 transitions, 692 flow [2023-08-30 17:13:19,352 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 328 transitions, 665 flow [2023-08-30 17:13:19,355 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 17:13:19,375 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 324 places, 328 transitions, 665 flow [2023-08-30 17:13:19,379 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 324 places, 328 transitions, 665 flow [2023-08-30 17:13:19,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 324 places, 328 transitions, 665 flow [2023-08-30 17:13:19,456 INFO L130 PetriNetUnfolder]: 11/328 cut-off events. [2023-08-30 17:13:19,457 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 17:13:19,460 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. [2023-08-30 17:13:19,466 INFO L119 LiptonReduction]: Number of co-enabled transitions 9684 [2023-08-30 17:16:01,166 WARN L222 SmtUtils]: Spent 1.97m 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) [2023-08-30 17:16:52,399 WARN L222 SmtUtils]: Spent 51.22s 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) [2023-08-30 17:18:53,701 WARN L222 SmtUtils]: Spent 2.02m 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) [2023-08-30 17:19:22,855 WARN L222 SmtUtils]: Spent 29.14s 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) [2023-08-30 17:19:22,858 INFO L134 LiptonReduction]: Checked pairs total: 8871 [2023-08-30 17:19:22,859 INFO L136 LiptonReduction]: Total number of compositions: 371 [2023-08-30 17:19:22,870 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 17:19:22,874 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;@4050e0cd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 17:19:22,875 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-30 17:19:22,883 INFO L130 PetriNetUnfolder]: 3/14 cut-off events. [2023-08-30 17:19:22,883 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 17:19:22,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:19:22,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 17:19:22,885 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)] === [2023-08-30 17:19:22,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:19:22,889 INFO L85 PathProgramCache]: Analyzing trace with hash -896316476, now seen corresponding path program 1 times [2023-08-30 17:19:22,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:19:22,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922765999] [2023-08-30 17:19:22,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:19:22,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:19:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:19:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:19:23,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:19:23,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922765999] [2023-08-30 17:19:23,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922765999] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:19:23,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:19:23,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 17:19:23,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078632238] [2023-08-30 17:19:23,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:19:23,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:19:23,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:19:23,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:19:23,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 17:19:24,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 709 [2023-08-30 17:19:24,078 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) [2023-08-30 17:19:24,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:19:24,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 709 [2023-08-30 17:19:24,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:19:24,310 INFO L130 PetriNetUnfolder]: 87/162 cut-off events. [2023-08-30 17:19:24,310 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-30 17:19:24,311 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. [2023-08-30 17:19:24,312 INFO L137 encePairwiseOnDemand]: 703/709 looper letters, 13 selfloop transitions, 4 changer transitions 8/25 dead transitions. [2023-08-30 17:19:24,313 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 25 transitions, 115 flow [2023-08-30 17:19:24,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:19:24,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:19:24,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 971 transitions. [2023-08-30 17:19:24,329 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45651151857075695 [2023-08-30 17:19:24,330 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 971 transitions. [2023-08-30 17:19:24,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 971 transitions. [2023-08-30 17:19:24,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:19:24,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 971 transitions. [2023-08-30 17:19:24,340 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) [2023-08-30 17:19:24,346 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) [2023-08-30 17:19:24,347 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) [2023-08-30 17:19:24,349 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 43 flow. Second operand 3 states and 971 transitions. [2023-08-30 17:19:24,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 25 transitions, 115 flow [2023-08-30 17:19:24,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 25 transitions, 107 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 17:19:24,353 INFO L231 Difference]: Finished difference. Result has 21 places, 15 transitions, 53 flow [2023-08-30 17:19:24,355 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} [2023-08-30 17:19:24,358 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 0 predicate places. [2023-08-30 17:19:24,358 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 53 flow [2023-08-30 17:19:24,359 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) [2023-08-30 17:19:24,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:19:24,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:19:24,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 17:19:24,360 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)] === [2023-08-30 17:19:24,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:19:24,361 INFO L85 PathProgramCache]: Analyzing trace with hash -2016005571, now seen corresponding path program 1 times [2023-08-30 17:19:24,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:19:24,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933182413] [2023-08-30 17:19:24,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:19:24,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:19:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:19:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:19:26,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:19:26,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933182413] [2023-08-30 17:19:26,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933182413] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:19:26,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:19:26,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 17:19:26,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804624049] [2023-08-30 17:19:26,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:19:26,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 17:19:26,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:19:26,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 17:19:26,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-30 17:19:26,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 709 [2023-08-30 17:19:26,839 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) [2023-08-30 17:19:26,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:19:26,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 709 [2023-08-30 17:19:26,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:19:27,295 INFO L130 PetriNetUnfolder]: 42/86 cut-off events. [2023-08-30 17:19:27,297 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-08-30 17:19:27,298 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. [2023-08-30 17:19:27,298 INFO L137 encePairwiseOnDemand]: 703/709 looper letters, 16 selfloop transitions, 6 changer transitions 1/23 dead transitions. [2023-08-30 17:19:27,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 23 transitions, 127 flow [2023-08-30 17:19:27,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 17:19:27,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 17:19:27,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1573 transitions. [2023-08-30 17:19:27,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4437235543018336 [2023-08-30 17:19:27,303 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1573 transitions. [2023-08-30 17:19:27,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1573 transitions. [2023-08-30 17:19:27,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:19:27,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1573 transitions. [2023-08-30 17:19:27,307 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) [2023-08-30 17:19:27,313 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) [2023-08-30 17:19:27,315 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) [2023-08-30 17:19:27,316 INFO L175 Difference]: Start difference. First operand has 21 places, 15 transitions, 53 flow. Second operand 5 states and 1573 transitions. [2023-08-30 17:19:27,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 23 transitions, 127 flow [2023-08-30 17:19:27,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 23 transitions, 123 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 17:19:27,318 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 73 flow [2023-08-30 17:19:27,319 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} [2023-08-30 17:19:27,319 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2023-08-30 17:19:27,320 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 73 flow [2023-08-30 17:19:27,321 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) [2023-08-30 17:19:27,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:19:27,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:19:27,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 17:19:27,323 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)] === [2023-08-30 17:19:27,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:19:27,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1652804644, now seen corresponding path program 1 times [2023-08-30 17:19:27,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:19:27,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321831650] [2023-08-30 17:19:27,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:19:27,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:19:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:19:28,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:19:28,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:19:28,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321831650] [2023-08-30 17:19:28,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321831650] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:19:28,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:19:28,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 17:19:28,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849428360] [2023-08-30 17:19:28,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:19:28,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 17:19:28,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:19:28,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 17:19:28,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-30 17:19:28,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 709 [2023-08-30 17:19:28,449 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) [2023-08-30 17:19:28,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:19:28,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 709 [2023-08-30 17:19:28,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:19:28,788 INFO L130 PetriNetUnfolder]: 42/90 cut-off events. [2023-08-30 17:19:28,789 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2023-08-30 17:19:28,789 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. [2023-08-30 17:19:28,789 INFO L137 encePairwiseOnDemand]: 704/709 looper letters, 8 selfloop transitions, 4 changer transitions 12/24 dead transitions. [2023-08-30 17:19:28,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 24 transitions, 151 flow [2023-08-30 17:19:28,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 17:19:28,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 17:19:28,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1588 transitions. [2023-08-30 17:19:28,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4479548660084626 [2023-08-30 17:19:28,795 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1588 transitions. [2023-08-30 17:19:28,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1588 transitions. [2023-08-30 17:19:28,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:19:28,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1588 transitions. [2023-08-30 17:19:28,799 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) [2023-08-30 17:19:28,804 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) [2023-08-30 17:19:28,806 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) [2023-08-30 17:19:28,806 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 73 flow. Second operand 5 states and 1588 transitions. [2023-08-30 17:19:28,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 24 transitions, 151 flow [2023-08-30 17:19:28,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 24 transitions, 143 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 17:19:28,809 INFO L231 Difference]: Finished difference. Result has 24 places, 12 transitions, 55 flow [2023-08-30 17:19:28,809 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} [2023-08-30 17:19:28,810 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 3 predicate places. [2023-08-30 17:19:28,810 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 12 transitions, 55 flow [2023-08-30 17:19:28,812 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) [2023-08-30 17:19:28,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:19:28,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:19:28,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 17:19:28,812 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)] === [2023-08-30 17:19:28,813 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:19:28,814 INFO L85 PathProgramCache]: Analyzing trace with hash -351331288, now seen corresponding path program 2 times [2023-08-30 17:19:28,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:19:28,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215574426] [2023-08-30 17:19:28,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:19:28,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:19:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:19:30,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:19:30,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:19:30,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215574426] [2023-08-30 17:19:30,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215574426] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:19:30,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:19:30,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 17:19:30,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803859395] [2023-08-30 17:19:30,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:19:30,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 17:19:30,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:19:30,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 17:19:30,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-30 17:19:30,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 709 [2023-08-30 17:19:30,362 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) [2023-08-30 17:19:30,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:19:30,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 709 [2023-08-30 17:19:30,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:19:30,629 INFO L130 PetriNetUnfolder]: 3/15 cut-off events. [2023-08-30 17:19:30,629 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-08-30 17:19:30,629 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. [2023-08-30 17:19:30,629 INFO L137 encePairwiseOnDemand]: 705/709 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-08-30 17:19:30,630 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 11 transitions, 69 flow [2023-08-30 17:19:30,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 17:19:30,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 17:19:30,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1557 transitions. [2023-08-30 17:19:30,633 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4392101551480959 [2023-08-30 17:19:30,634 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1557 transitions. [2023-08-30 17:19:30,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1557 transitions. [2023-08-30 17:19:30,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:19:30,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1557 transitions. [2023-08-30 17:19:30,637 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) [2023-08-30 17:19:30,642 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) [2023-08-30 17:19:30,644 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) [2023-08-30 17:19:30,644 INFO L175 Difference]: Start difference. First operand has 24 places, 12 transitions, 55 flow. Second operand 5 states and 1557 transitions. [2023-08-30 17:19:30,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 11 transitions, 69 flow [2023-08-30 17:19:30,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 11 transitions, 47 flow, removed 2 selfloop flow, removed 9 redundant places. [2023-08-30 17:19:30,645 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2023-08-30 17:19:30,646 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} [2023-08-30 17:19:30,646 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, -3 predicate places. [2023-08-30 17:19:30,646 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2023-08-30 17:19:30,648 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) [2023-08-30 17:19:30,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-08-30 17:19:30,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-30 17:19:30,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-30 17:19:30,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-08-30 17:19:30,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 17:19:30,651 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-08-30 17:19:30,656 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 17:19:30,656 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 17:19:30,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:19:30 BasicIcfg [2023-08-30 17:19:30,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 17:19:30,659 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 17:19:30,659 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 17:19:30,659 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 17:19:30,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:13:18" (3/4) ... [2023-08-30 17:19:30,662 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 17:19:30,666 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_write_nvram [2023-08-30 17:19:30,666 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_nvram_unlocked_ioctl [2023-08-30 17:19:30,671 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-08-30 17:19:30,671 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-08-30 17:19:30,672 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-08-30 17:19:30,672 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 17:19:30,672 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 17:19:30,708 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 17:19:30,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 17:19:30,709 INFO L158 Benchmark]: Toolchain (without parser) took 377904.77ms. Allocated memory was 81.8MB in the beginning and 264.2MB in the end (delta: 182.5MB). Free memory was 51.6MB in the beginning and 145.6MB in the end (delta: -94.0MB). Peak memory consumption was 88.5MB. Max. memory is 16.1GB. [2023-08-30 17:19:30,709 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:19:30,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4751.06ms. Allocated memory was 81.8MB in the beginning and 119.5MB in the end (delta: 37.7MB). Free memory was 51.3MB in the beginning and 34.4MB in the end (delta: 17.0MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2023-08-30 17:19:30,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 201.67ms. Allocated memory is still 119.5MB. Free memory was 34.4MB in the beginning and 57.8MB in the end (delta: -23.4MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-08-30 17:19:30,710 INFO L158 Benchmark]: Boogie Preprocessor took 42.29ms. Allocated memory is still 119.5MB. Free memory was 57.8MB in the beginning and 53.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 17:19:30,710 INFO L158 Benchmark]: RCFGBuilder took 1137.11ms. Allocated memory is still 119.5MB. Free memory was 53.6MB in the beginning and 41.4MB in the end (delta: 12.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-08-30 17:19:30,711 INFO L158 Benchmark]: TraceAbstraction took 371717.96ms. Allocated memory was 119.5MB in the beginning and 264.2MB in the end (delta: 144.7MB). Free memory was 40.7MB in the beginning and 149.8MB in the end (delta: -109.1MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2023-08-30 17:19:30,711 INFO L158 Benchmark]: Witness Printer took 49.26ms. Allocated memory is still 264.2MB. Free memory was 149.8MB in the beginning and 145.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 17:19:30,712 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4751.06ms. Allocated memory was 81.8MB in the beginning and 119.5MB in the end (delta: 37.7MB). Free memory was 51.3MB in the beginning and 34.4MB in the end (delta: 17.0MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 201.67ms. Allocated memory is still 119.5MB. Free memory was 34.4MB in the beginning and 57.8MB in the end (delta: -23.4MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.29ms. Allocated memory is still 119.5MB. Free memory was 57.8MB in the beginning and 53.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1137.11ms. Allocated memory is still 119.5MB. Free memory was 53.6MB in the beginning and 41.4MB in the end (delta: 12.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 371717.96ms. Allocated memory was 119.5MB in the beginning and 264.2MB in the end (delta: 144.7MB). Free memory was 40.7MB in the beginning and 149.8MB in the end (delta: -109.1MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. * Witness Printer took 49.26ms. Allocated memory is still 264.2MB. Free memory was 149.8MB in the beginning and 145.6MB in the end (delta: 4.2MB). 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: 363.5s, 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: 371.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 363.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 757 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 499 mSDsluCounter, 196 SdHoareTripleChecker+Invalid, 1.7s 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, 0.3s 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, 0.3s SatisfiabilityAnalysisTime, 4.8s 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! [2023-08-30 17:19:30,740 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