./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.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 851106f2567c562a13ee43b8e8fe7cdbbfa2cb6fa414a1f64a1bc4b82171765c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 23:55:15,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 23:55:15,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 23:55:15,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 23:55:15,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 23:55:15,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 23:55:15,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 23:55:15,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 23:55:15,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 23:55:15,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 23:55:15,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 23:55:15,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 23:55:15,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 23:55:15,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 23:55:15,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 23:55:15,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 23:55:15,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 23:55:15,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 23:55:15,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 23:55:15,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 23:55:15,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 23:55:15,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 23:55:15,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 23:55:15,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 23:55:15,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 23:55:15,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 23:55:15,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 23:55:15,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 23:55:15,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 23:55:15,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 23:55:15,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 23:55:15,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 23:55:15,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 23:55:15,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 23:55:15,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 23:55:15,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 23:55:15,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 23:55:15,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 23:55:15,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 23:55:15,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 23:55:15,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 23:55:15,800 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 23:55:15,826 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 23:55:15,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 23:55:15,828 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 23:55:15,828 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 23:55:15,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 23:55:15,829 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 23:55:15,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 23:55:15,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 23:55:15,830 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 23:55:15,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 23:55:15,831 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 23:55:15,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 23:55:15,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 23:55:15,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 23:55:15,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 23:55:15,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 23:55:15,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 23:55:15,832 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 23:55:15,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 23:55:15,832 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 23:55:15,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 23:55:15,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 23:55:15,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 23:55:15,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 23:55:15,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:55:15,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 23:55:15,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 23:55:15,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 23:55:15,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 23:55:15,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 23:55:15,835 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 23:55:15,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 23:55:15,835 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 23:55:15,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 23:55:15,835 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 23:55:15,836 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 851106f2567c562a13ee43b8e8fe7cdbbfa2cb6fa414a1f64a1bc4b82171765c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 23:55:16,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 23:55:16,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 23:55:16,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 23:55:16,132 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 23:55:16,132 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 23:55:16,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2023-08-30 23:55:17,387 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 23:55:17,791 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 23:55:17,793 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2023-08-30 23:55:17,831 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3488094c/25af727574c6417e849abc6a03faadb7/FLAG3059e7498 [2023-08-30 23:55:17,849 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3488094c/25af727574c6417e849abc6a03faadb7 [2023-08-30 23:55:17,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 23:55:17,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 23:55:17,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 23:55:17,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 23:55:17,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 23:55:17,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:55:17" (1/1) ... [2023-08-30 23:55:17,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef5dccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:55:17, skipping insertion in model container [2023-08-30 23:55:17,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:55:17" (1/1) ... [2023-08-30 23:55:17,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 23:55:18,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 23:55:18,281 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i[5469,5482] [2023-08-30 23:55:20,448 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 23:55:20,897 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:55:20,897 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:55:20,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:55:20,983 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 23:55:21,011 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i[5469,5482] [2023-08-30 23:55:21,183 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 23:55:21,272 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:55:21,272 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:55:21,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:55:21,819 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:55:21,820 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:55:21,820 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:55:21,820 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:55:21,820 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:55:21,820 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:55:21,820 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:55:21,826 INFO L208 MainTranslator]: Completed translation [2023-08-30 23:55:21,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:55:21 WrapperNode [2023-08-30 23:55:21,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 23:55:21,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 23:55:21,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 23:55:21,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 23:55:21,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:55:21" (1/1) ... [2023-08-30 23:55:21,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:55:21" (1/1) ... [2023-08-30 23:55:21,977 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 49, statements flattened = 639 [2023-08-30 23:55:21,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 23:55:21,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 23:55:21,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 23:55:21,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 23:55:21,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:55:21" (1/1) ... [2023-08-30 23:55:21,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:55:21" (1/1) ... [2023-08-30 23:55:21,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:55:21" (1/1) ... [2023-08-30 23:55:22,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:55:21" (1/1) ... [2023-08-30 23:55:22,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:55:21" (1/1) ... [2023-08-30 23:55:22,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:55:21" (1/1) ... [2023-08-30 23:55:22,049 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:55:21" (1/1) ... [2023-08-30 23:55:22,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:55:21" (1/1) ... [2023-08-30 23:55:22,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 23:55:22,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 23:55:22,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 23:55:22,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 23:55:22,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:55:21" (1/1) ... [2023-08-30 23:55:22,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:55:22,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:55:22,174 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 23:55:22,203 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 23:55:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 23:55:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 23:55:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 23:55:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 23:55:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-30 23:55:22,220 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-30 23:55:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 23:55:22,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 23:55:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2023-08-30 23:55:22,221 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2023-08-30 23:55:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 23:55:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 23:55:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 23:55:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 23:55:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 23:55:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 23:55:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 23:55:22,224 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 23:55:22,690 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 23:55:22,692 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 23:55:23,360 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 23:55:23,370 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 23:55:23,370 INFO L302 CfgBuilder]: Removed 21 assume(true) statements. [2023-08-30 23:55:23,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:55:23 BoogieIcfgContainer [2023-08-30 23:55:23,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 23:55:23,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 23:55:23,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 23:55:23,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 23:55:23,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 11:55:17" (1/3) ... [2023-08-30 23:55:23,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4245aa64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:55:23, skipping insertion in model container [2023-08-30 23:55:23,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:55:21" (2/3) ... [2023-08-30 23:55:23,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4245aa64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:55:23, skipping insertion in model container [2023-08-30 23:55:23,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:55:23" (3/3) ... [2023-08-30 23:55:23,379 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2023-08-30 23:55:23,387 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 23:55:23,395 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 23:55:23,396 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-30 23:55:23,396 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 23:55:23,503 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 23:55:23,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 659 places, 695 transitions, 1406 flow [2023-08-30 23:55:23,790 INFO L130 PetriNetUnfolder]: 43/693 cut-off events. [2023-08-30 23:55:23,790 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 23:55:23,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 693 events. 43/693 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 843 event pairs, 0 based on Foata normal form. 0/647 useless extension candidates. Maximal degree in co-relation 646. Up to 9 conditions per place. [2023-08-30 23:55:23,797 INFO L82 GeneralOperation]: Start removeDead. Operand has 659 places, 695 transitions, 1406 flow [2023-08-30 23:55:23,804 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 649 places, 685 transitions, 1379 flow [2023-08-30 23:55:23,807 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 23:55:23,815 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 649 places, 685 transitions, 1379 flow [2023-08-30 23:55:23,817 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 649 places, 685 transitions, 1379 flow [2023-08-30 23:55:23,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 649 places, 685 transitions, 1379 flow [2023-08-30 23:55:23,922 INFO L130 PetriNetUnfolder]: 43/685 cut-off events. [2023-08-30 23:55:23,922 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 23:55:23,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 685 events. 43/685 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 790 event pairs, 0 based on Foata normal form. 0/639 useless extension candidates. Maximal degree in co-relation 646. Up to 9 conditions per place. [2023-08-30 23:55:23,927 INFO L119 LiptonReduction]: Number of co-enabled transitions 4794 [2023-08-30 23:59:04,981 WARN L222 SmtUtils]: Spent 2.31m on a formula simplification. DAG size of input: 661 DAG size of output: 659 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:59:35,981 WARN L222 SmtUtils]: Spent 30.97s on a formula simplification that was a NOOP. DAG size: 581 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 00:02:00,843 WARN L222 SmtUtils]: Spent 2.41m on a formula simplification. DAG size of input: 664 DAG size of output: 662 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 00:03:01,981 WARN L222 SmtUtils]: Spent 1.02m on a formula simplification that was a NOOP. DAG size: 584 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 00:03:16,596 INFO L134 LiptonReduction]: Checked pairs total: 4986 [2023-08-31 00:03:16,596 INFO L136 LiptonReduction]: Total number of compositions: 759 [2023-08-31 00:03:16,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:03:16,615 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;@35d4674b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:03:16,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-31 00:03:16,625 INFO L130 PetriNetUnfolder]: 6/11 cut-off events. [2023-08-31 00:03:16,626 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:03:16,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:03:16,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-31 00:03:16,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-08-31 00:03:16,631 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:03:16,632 INFO L85 PathProgramCache]: Analyzing trace with hash 2456996, now seen corresponding path program 1 times [2023-08-31 00:03:16,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:03:16,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093460958] [2023-08-31 00:03:16,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:16,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:03:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:17,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:17,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:03:17,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093460958] [2023-08-31 00:03:17,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093460958] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:03:17,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:03:17,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-31 00:03:17,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779998582] [2023-08-31 00:03:17,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:03:17,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 00:03:17,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:03:17,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 00:03:17,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 00:03:17,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 663 out of 1454 [2023-08-31 00:03:17,264 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 47 transitions, 103 flow. Second operand has 2 states, 2 states have (on average 664.5) internal successors, (1329), 2 states have internal predecessors, (1329), 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) [2023-08-31 00:03:17,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:03:17,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 663 of 1454 [2023-08-31 00:03:17,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:03:17,572 INFO L130 PetriNetUnfolder]: 79/159 cut-off events. [2023-08-31 00:03:17,572 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-08-31 00:03:17,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 159 events. 79/159 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 464 event pairs, 69 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 256. Up to 160 conditions per place. [2023-08-31 00:03:17,577 INFO L137 encePairwiseOnDemand]: 1443/1454 looper letters, 36 selfloop transitions, 0 changer transitions 0/36 dead transitions. [2023-08-31 00:03:17,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 153 flow [2023-08-31 00:03:17,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 00:03:17,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 00:03:17,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1373 transitions. [2023-08-31 00:03:17,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47214580467675377 [2023-08-31 00:03:17,604 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1373 transitions. [2023-08-31 00:03:17,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1373 transitions. [2023-08-31 00:03:17,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:03:17,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1373 transitions. [2023-08-31 00:03:17,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 686.5) internal successors, (1373), 2 states have internal predecessors, (1373), 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) [2023-08-31 00:03:17,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1454.0) internal successors, (4362), 3 states have internal predecessors, (4362), 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) [2023-08-31 00:03:17,632 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1454.0) internal successors, (4362), 3 states have internal predecessors, (4362), 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) [2023-08-31 00:03:17,634 INFO L175 Difference]: Start difference. First operand has 34 places, 47 transitions, 103 flow. Second operand 2 states and 1373 transitions. [2023-08-31 00:03:17,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 153 flow [2023-08-31 00:03:17,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 36 transitions, 148 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 00:03:17,645 INFO L231 Difference]: Finished difference. Result has 31 places, 36 transitions, 76 flow [2023-08-31 00:03:17,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1454, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=76, PETRI_PLACES=31, PETRI_TRANSITIONS=36} [2023-08-31 00:03:17,650 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2023-08-31 00:03:17,651 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 36 transitions, 76 flow [2023-08-31 00:03:17,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 664.5) internal successors, (1329), 2 states have internal predecessors, (1329), 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) [2023-08-31 00:03:17,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:03:17,652 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 00:03:17,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:03:17,653 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-08-31 00:03:17,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:03:17,654 INFO L85 PathProgramCache]: Analyzing trace with hash 204190383, now seen corresponding path program 1 times [2023-08-31 00:03:17,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:03:17,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954912] [2023-08-31 00:03:17,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:17,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:03:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:18,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:18,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:03:18,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954912] [2023-08-31 00:03:18,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954912] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:03:18,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:03:18,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 00:03:18,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630717217] [2023-08-31 00:03:18,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:03:18,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 00:03:18,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:03:18,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 00:03:18,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 00:03:18,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 646 out of 1454 [2023-08-31 00:03:18,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 36 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 648.0) internal successors, (1944), 3 states have internal predecessors, (1944), 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) [2023-08-31 00:03:18,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:03:18,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 646 of 1454 [2023-08-31 00:03:18,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:03:19,395 INFO L130 PetriNetUnfolder]: 108/222 cut-off events. [2023-08-31 00:03:19,395 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 00:03:19,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 222 events. 108/222 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 822 event pairs, 41 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 463. Up to 137 conditions per place. [2023-08-31 00:03:19,396 INFO L137 encePairwiseOnDemand]: 1450/1454 looper letters, 42 selfloop transitions, 3 changer transitions 1/46 dead transitions. [2023-08-31 00:03:19,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 46 transitions, 191 flow [2023-08-31 00:03:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 00:03:19,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 00:03:19,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1985 transitions. [2023-08-31 00:03:19,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45506648326455756 [2023-08-31 00:03:19,403 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1985 transitions. [2023-08-31 00:03:19,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1985 transitions. [2023-08-31 00:03:19,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:03:19,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1985 transitions. [2023-08-31 00:03:19,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 661.6666666666666) internal successors, (1985), 3 states have internal predecessors, (1985), 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) [2023-08-31 00:03:19,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1454.0) internal successors, (5816), 4 states have internal predecessors, (5816), 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) [2023-08-31 00:03:19,419 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1454.0) internal successors, (5816), 4 states have internal predecessors, (5816), 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) [2023-08-31 00:03:19,419 INFO L175 Difference]: Start difference. First operand has 31 places, 36 transitions, 76 flow. Second operand 3 states and 1985 transitions. [2023-08-31 00:03:19,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 46 transitions, 191 flow [2023-08-31 00:03:19,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 46 transitions, 191 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 00:03:19,421 INFO L231 Difference]: Finished difference. Result has 35 places, 38 transitions, 98 flow [2023-08-31 00:03:19,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1454, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=35, PETRI_TRANSITIONS=38} [2023-08-31 00:03:19,422 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2023-08-31 00:03:19,422 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 38 transitions, 98 flow [2023-08-31 00:03:19,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 648.0) internal successors, (1944), 3 states have internal predecessors, (1944), 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) [2023-08-31 00:03:19,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:03:19,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:03:19,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 00:03:19,425 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-08-31 00:03:19,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:03:19,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2034936646, now seen corresponding path program 1 times [2023-08-31 00:03:19,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:03:19,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649594549] [2023-08-31 00:03:19,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:19,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:03:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:20,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:20,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:03:20,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649594549] [2023-08-31 00:03:20,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649594549] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:03:20,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:03:20,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 00:03:20,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211388407] [2023-08-31 00:03:20,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:03:20,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 00:03:20,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:03:20,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 00:03:20,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-31 00:03:20,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 641 out of 1454 [2023-08-31 00:03:20,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 38 transitions, 98 flow. Second operand has 7 states, 7 states have (on average 642.0) internal successors, (4494), 7 states have internal predecessors, (4494), 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) [2023-08-31 00:03:20,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:03:20,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 641 of 1454 [2023-08-31 00:03:20,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:03:21,486 INFO L130 PetriNetUnfolder]: 97/202 cut-off events. [2023-08-31 00:03:21,487 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-08-31 00:03:21,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 202 events. 97/202 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 742 event pairs, 27 based on Foata normal form. 9/181 useless extension candidates. Maximal degree in co-relation 477. Up to 145 conditions per place. [2023-08-31 00:03:21,489 INFO L137 encePairwiseOnDemand]: 1443/1454 looper letters, 35 selfloop transitions, 10 changer transitions 3/48 dead transitions. [2023-08-31 00:03:21,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 218 flow [2023-08-31 00:03:21,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 00:03:21,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 00:03:21,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3894 transitions. [2023-08-31 00:03:21,500 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44635488308115545 [2023-08-31 00:03:21,500 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3894 transitions. [2023-08-31 00:03:21,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3894 transitions. [2023-08-31 00:03:21,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:03:21,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3894 transitions. [2023-08-31 00:03:21,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 649.0) internal successors, (3894), 6 states have internal predecessors, (3894), 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) [2023-08-31 00:03:21,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1454.0) internal successors, (10178), 7 states have internal predecessors, (10178), 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) [2023-08-31 00:03:21,531 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1454.0) internal successors, (10178), 7 states have internal predecessors, (10178), 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) [2023-08-31 00:03:21,531 INFO L175 Difference]: Start difference. First operand has 35 places, 38 transitions, 98 flow. Second operand 6 states and 3894 transitions. [2023-08-31 00:03:21,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 218 flow [2023-08-31 00:03:21,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 212 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 00:03:21,534 INFO L231 Difference]: Finished difference. Result has 37 places, 36 transitions, 106 flow [2023-08-31 00:03:21,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1454, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=106, PETRI_PLACES=37, PETRI_TRANSITIONS=36} [2023-08-31 00:03:21,535 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-08-31 00:03:21,535 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 36 transitions, 106 flow [2023-08-31 00:03:21,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 642.0) internal successors, (4494), 7 states have internal predecessors, (4494), 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) [2023-08-31 00:03:21,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:03:21,538 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:03:21,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 00:03:21,539 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-08-31 00:03:21,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:03:21,539 INFO L85 PathProgramCache]: Analyzing trace with hash 2031175926, now seen corresponding path program 1 times [2023-08-31 00:03:21,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:03:21,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165342236] [2023-08-31 00:03:21,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:21,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:03:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:22,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:22,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:03:22,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165342236] [2023-08-31 00:03:22,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165342236] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:03:22,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:03:22,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 00:03:22,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463322577] [2023-08-31 00:03:22,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:03:22,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 00:03:22,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:03:22,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 00:03:22,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 00:03:22,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 653 out of 1454 [2023-08-31 00:03:22,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 36 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 655.3333333333334) internal successors, (1966), 3 states have internal predecessors, (1966), 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) [2023-08-31 00:03:22,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:03:22,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 653 of 1454 [2023-08-31 00:03:22,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:03:23,345 INFO L130 PetriNetUnfolder]: 73/159 cut-off events. [2023-08-31 00:03:23,346 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-08-31 00:03:23,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 159 events. 73/159 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 488 event pairs, 56 based on Foata normal form. 1/152 useless extension candidates. Maximal degree in co-relation 387. Up to 159 conditions per place. [2023-08-31 00:03:23,347 INFO L137 encePairwiseOnDemand]: 1450/1454 looper letters, 35 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-08-31 00:03:23,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 37 transitions, 182 flow [2023-08-31 00:03:23,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 00:03:23,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 00:03:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1996 transitions. [2023-08-31 00:03:23,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45758826226501603 [2023-08-31 00:03:23,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1996 transitions. [2023-08-31 00:03:23,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1996 transitions. [2023-08-31 00:03:23,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:03:23,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1996 transitions. [2023-08-31 00:03:23,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 665.3333333333334) internal successors, (1996), 3 states have internal predecessors, (1996), 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) [2023-08-31 00:03:23,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1454.0) internal successors, (5816), 4 states have internal predecessors, (5816), 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) [2023-08-31 00:03:23,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1454.0) internal successors, (5816), 4 states have internal predecessors, (5816), 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) [2023-08-31 00:03:23,369 INFO L175 Difference]: Start difference. First operand has 37 places, 36 transitions, 106 flow. Second operand 3 states and 1996 transitions. [2023-08-31 00:03:23,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 37 transitions, 182 flow [2023-08-31 00:03:23,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 37 transitions, 163 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 00:03:23,371 INFO L231 Difference]: Finished difference. Result has 35 places, 37 transitions, 101 flow [2023-08-31 00:03:23,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1454, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=35, PETRI_TRANSITIONS=37} [2023-08-31 00:03:23,373 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2023-08-31 00:03:23,373 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 37 transitions, 101 flow [2023-08-31 00:03:23,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 655.3333333333334) internal successors, (1966), 3 states have internal predecessors, (1966), 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) [2023-08-31 00:03:23,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:03:23,374 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:03:23,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 00:03:23,375 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-08-31 00:03:23,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:03:23,375 INFO L85 PathProgramCache]: Analyzing trace with hash 346016578, now seen corresponding path program 1 times [2023-08-31 00:03:23,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:03:23,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879962976] [2023-08-31 00:03:23,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:23,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:03:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:24,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:24,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:03:24,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879962976] [2023-08-31 00:03:24,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879962976] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:03:24,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545137627] [2023-08-31 00:03:24,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:24,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:03:24,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:03:24,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 00:03:24,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 00:03:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:24,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-31 00:03:24,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 00:03:24,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 00:03:24,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-31 00:03:24,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545137627] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:03:24,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-31 00:03:24,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-31 00:03:24,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413685382] [2023-08-31 00:03:24,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:03:24,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 00:03:24,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:03:24,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 00:03:24,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-31 00:03:24,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 645 out of 1454 [2023-08-31 00:03:24,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 37 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 647.6666666666666) internal successors, (1943), 3 states have internal predecessors, (1943), 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) [2023-08-31 00:03:24,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:03:24,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 645 of 1454 [2023-08-31 00:03:24,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:03:25,287 INFO L130 PetriNetUnfolder]: 59/141 cut-off events. [2023-08-31 00:03:25,287 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-31 00:03:25,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 141 events. 59/141 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 457 event pairs, 24 based on Foata normal form. 20/151 useless extension candidates. Maximal degree in co-relation 337. Up to 100 conditions per place. [2023-08-31 00:03:25,288 INFO L137 encePairwiseOnDemand]: 1451/1454 looper letters, 35 selfloop transitions, 2 changer transitions 8/45 dead transitions. [2023-08-31 00:03:25,289 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 45 transitions, 215 flow [2023-08-31 00:03:25,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 00:03:25,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 00:03:25,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1977 transitions. [2023-08-31 00:03:25,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.453232462173315 [2023-08-31 00:03:25,294 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1977 transitions. [2023-08-31 00:03:25,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1977 transitions. [2023-08-31 00:03:25,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:03:25,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1977 transitions. [2023-08-31 00:03:25,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 659.0) internal successors, (1977), 3 states have internal predecessors, (1977), 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) [2023-08-31 00:03:25,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1454.0) internal successors, (5816), 4 states have internal predecessors, (5816), 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) [2023-08-31 00:03:25,313 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1454.0) internal successors, (5816), 4 states have internal predecessors, (5816), 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) [2023-08-31 00:03:25,313 INFO L175 Difference]: Start difference. First operand has 35 places, 37 transitions, 101 flow. Second operand 3 states and 1977 transitions. [2023-08-31 00:03:25,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 45 transitions, 215 flow [2023-08-31 00:03:25,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 45 transitions, 211 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-31 00:03:25,317 INFO L231 Difference]: Finished difference. Result has 37 places, 35 transitions, 97 flow [2023-08-31 00:03:25,317 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1454, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=37, PETRI_TRANSITIONS=35} [2023-08-31 00:03:25,319 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-08-31 00:03:25,319 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 35 transitions, 97 flow [2023-08-31 00:03:25,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 647.6666666666666) internal successors, (1943), 3 states have internal predecessors, (1943), 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) [2023-08-31 00:03:25,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:03:25,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:03:25,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-31 00:03:25,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:03:25,530 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-08-31 00:03:25,531 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:03:25,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1187781155, now seen corresponding path program 1 times [2023-08-31 00:03:25,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:03:25,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385579453] [2023-08-31 00:03:25,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:25,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:03:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:26,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:03:26,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:03:26,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385579453] [2023-08-31 00:03:26,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385579453] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 00:03:26,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796197161] [2023-08-31 00:03:26,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:03:26,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 00:03:26,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:03:26,198 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 00:03:26,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-31 00:03:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:03:26,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 36 conjunts are in the unsatisfiable core [2023-08-31 00:03:26,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 00:03:26,962 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-31 00:03:26,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2023-08-31 00:03:27,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-31 00:03:27,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 00:03:27,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-31 00:03:27,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796197161] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:03:27,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-31 00:03:27,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2023-08-31 00:03:27,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90520889] [2023-08-31 00:03:27,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:03:27,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 00:03:27,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:03:27,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 00:03:27,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-31 00:03:27,668 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 641 out of 1454 [2023-08-31 00:03:27,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 97 flow. Second operand has 6 states, 6 states have (on average 642.6666666666666) internal successors, (3856), 6 states have internal predecessors, (3856), 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) [2023-08-31 00:03:27,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:03:27,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 641 of 1454 [2023-08-31 00:03:27,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:03:28,641 INFO L130 PetriNetUnfolder]: 20/53 cut-off events. [2023-08-31 00:03:28,641 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-31 00:03:28,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 53 events. 20/53 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 0 based on Foata normal form. 8/51 useless extension candidates. Maximal degree in co-relation 131. Up to 27 conditions per place. [2023-08-31 00:03:28,641 INFO L137 encePairwiseOnDemand]: 1450/1454 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2023-08-31 00:03:28,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 41 transitions, 196 flow [2023-08-31 00:03:28,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 00:03:28,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 00:03:28,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3887 transitions. [2023-08-31 00:03:28,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4455524988537368 [2023-08-31 00:03:28,650 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3887 transitions. [2023-08-31 00:03:28,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3887 transitions. [2023-08-31 00:03:28,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:03:28,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3887 transitions. [2023-08-31 00:03:28,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 647.8333333333334) internal successors, (3887), 6 states have internal predecessors, (3887), 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) [2023-08-31 00:03:28,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1454.0) internal successors, (10178), 7 states have internal predecessors, (10178), 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) [2023-08-31 00:03:28,671 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1454.0) internal successors, (10178), 7 states have internal predecessors, (10178), 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) [2023-08-31 00:03:28,671 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 97 flow. Second operand 6 states and 3887 transitions. [2023-08-31 00:03:28,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 41 transitions, 196 flow [2023-08-31 00:03:28,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 182 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-31 00:03:28,672 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-08-31 00:03:28,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1454, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2023-08-31 00:03:28,673 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-08-31 00:03:28,673 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-08-31 00:03:28,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 642.6666666666666) internal successors, (3856), 6 states have internal predecessors, (3856), 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) [2023-08-31 00:03:28,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-08-31 00:03:28,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-08-31 00:03:28,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-08-31 00:03:28,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-31 00:03:28,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-08-31 00:03:28,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-08-31 00:03:28,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-08-31 00:03:28,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-31 00:03:28,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-31 00:03:28,889 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-31 00:03:28,894 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 00:03:28,894 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 00:03:28,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 12:03:28 BasicIcfg [2023-08-31 00:03:28,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 00:03:28,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 00:03:28,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 00:03:28,897 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 00:03:28,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:55:23" (3/4) ... [2023-08-31 00:03:28,900 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 00:03:28,909 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_pc8736x_gpio_open [2023-08-31 00:03:28,909 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_pc8736x_gpio_current [2023-08-31 00:03:28,929 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 94 nodes and edges [2023-08-31 00:03:28,930 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-08-31 00:03:28,931 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-08-31 00:03:28,931 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 00:03:29,040 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 00:03:29,040 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 00:03:29,041 INFO L158 Benchmark]: Toolchain (without parser) took 491187.81ms. Allocated memory was 79.7MB in the beginning and 312.5MB in the end (delta: 232.8MB). Free memory was 47.6MB in the beginning and 239.0MB in the end (delta: -191.4MB). Peak memory consumption was 222.2MB. Max. memory is 16.1GB. [2023-08-31 00:03:29,041 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:03:29,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3970.35ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 47.4MB in the beginning and 38.9MB in the end (delta: 8.4MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. [2023-08-31 00:03:29,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 156.47ms. Allocated memory is still 117.4MB. Free memory was 38.9MB in the beginning and 27.7MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-31 00:03:29,042 INFO L158 Benchmark]: Boogie Preprocessor took 111.53ms. Allocated memory is still 117.4MB. Free memory was 27.7MB in the beginning and 56.8MB in the end (delta: -29.1MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2023-08-31 00:03:29,042 INFO L158 Benchmark]: RCFGBuilder took 1275.28ms. Allocated memory was 117.4MB in the beginning and 188.7MB in the end (delta: 71.3MB). Free memory was 56.8MB in the beginning and 115.4MB in the end (delta: -58.6MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2023-08-31 00:03:29,043 INFO L158 Benchmark]: TraceAbstraction took 485523.03ms. Allocated memory was 188.7MB in the beginning and 312.5MB in the end (delta: 123.7MB). Free memory was 114.3MB in the beginning and 68.7MB in the end (delta: 45.6MB). Peak memory consumption was 169.5MB. Max. memory is 16.1GB. [2023-08-31 00:03:29,043 INFO L158 Benchmark]: Witness Printer took 142.96ms. Allocated memory is still 312.5MB. Free memory was 68.7MB in the beginning and 239.0MB in the end (delta: -170.4MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2023-08-31 00:03:29,045 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 60.8MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3970.35ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 47.4MB in the beginning and 38.9MB in the end (delta: 8.4MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 156.47ms. Allocated memory is still 117.4MB. Free memory was 38.9MB in the beginning and 27.7MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 111.53ms. Allocated memory is still 117.4MB. Free memory was 27.7MB in the beginning and 56.8MB in the end (delta: -29.1MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1275.28ms. Allocated memory was 117.4MB in the beginning and 188.7MB in the end (delta: 71.3MB). Free memory was 56.8MB in the beginning and 115.4MB in the end (delta: -58.6MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. * TraceAbstraction took 485523.03ms. Allocated memory was 188.7MB in the beginning and 312.5MB in the end (delta: 123.7MB). Free memory was 114.3MB in the beginning and 68.7MB in the end (delta: 45.6MB). Peak memory consumption was 169.5MB. Max. memory is 16.1GB. * Witness Printer took 142.96ms. Allocated memory is still 312.5MB. Free memory was 68.7MB in the beginning and 239.0MB in the end (delta: -170.4MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 472.8s, 649 PlacesBefore, 34 PlacesAfterwards, 685 TransitionsBefore, 47 TransitionsAfterwards, 4794 CoEnabledTransitionPairs, 11 FixpointIterations, 559 TrivialSequentialCompositions, 86 ConcurrentSequentialCompositions, 82 TrivialYvCompositions, 9 ConcurrentYvCompositions, 23 ChoiceCompositions, 759 TotalNumberOfCompositions, 4986 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3928, independent: 3799, independent conditional: 0, independent unconditional: 3799, dependent: 129, dependent conditional: 0, dependent unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2595, independent: 2567, independent conditional: 0, independent unconditional: 2567, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3928, independent: 1232, independent conditional: 0, independent unconditional: 1232, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 2595, unknown conditional: 0, unknown unconditional: 2595] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, 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 - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - 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, 736 locations, 7 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: 485.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 473.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 923 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 585 mSDsluCounter, 537 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 419 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1349 IncrementalHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 118 mSDtfsCounter, 1349 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=3, InterpolantAutomatonStates: 23, 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: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 259 SizeOfPredicates, 46 NumberOfNonLiveVariables, 2224 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 2/4 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 00:03:29,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE