./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.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 fcc0f5ef9d6c49d1991b076f6c361ed83f7f84302617131ead28c4e655562844 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 17:13:44,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 17:13:44,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 17:13:44,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 17:13:44,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 17:13:44,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 17:13:44,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 17:13:44,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 17:13:44,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 17:13:44,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 17:13:44,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 17:13:44,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 17:13:44,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 17:13:44,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 17:13:44,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 17:13:44,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 17:13:44,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 17:13:44,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 17:13:44,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 17:13:44,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 17:13:44,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 17:13:44,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 17:13:44,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 17:13:44,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 17:13:44,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 17:13:44,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 17:13:44,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 17:13:44,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 17:13:44,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 17:13:44,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 17:13:44,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 17:13:44,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 17:13:44,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 17:13:44,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 17:13:44,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 17:13:44,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 17:13:44,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 17:13:44,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 17:13:44,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 17:13:44,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 17:13:44,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 17:13:44,798 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 17:13:44,824 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 17:13:44,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 17:13:44,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 17:13:44,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 17:13:44,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 17:13:44,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 17:13:44,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 17:13:44,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 17:13:44,828 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 17:13:44,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 17:13:44,829 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 17:13:44,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 17:13:44,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 17:13:44,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 17:13:44,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 17:13:44,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 17:13:44,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 17:13:44,830 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 17:13:44,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 17:13:44,831 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 17:13:44,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 17:13:44,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 17:13:44,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 17:13:44,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 17:13:44,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:13:44,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 17:13:44,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 17:13:44,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 17:13:44,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 17:13:44,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 17:13:44,833 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 17:13:44,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 17:13:44,833 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 17:13:44,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 17:13:44,834 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 17:13:44,834 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc0f5ef9d6c49d1991b076f6c361ed83f7f84302617131ead28c4e655562844 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 17:13:45,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 17:13:45,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 17:13:45,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 17:13:45,189 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 17:13:45,190 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 17:13:45,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i [2023-08-30 17:13:46,285 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 17:13:46,783 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 17:13:46,784 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i [2023-08-30 17:13:46,829 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89be6043b/455eff2efba742238e66cc6c88d1693d/FLAG2e1f3684d [2023-08-30 17:13:46,852 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89be6043b/455eff2efba742238e66cc6c88d1693d [2023-08-30 17:13:46,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 17:13:46,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 17:13:46,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 17:13:46,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 17:13:46,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 17:13:46,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:13:46" (1/1) ... [2023-08-30 17:13:46,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626375f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:46, skipping insertion in model container [2023-08-30 17:13:46,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:13:46" (1/1) ... [2023-08-30 17:13:46,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 17:13:46,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 17:13:47,283 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i[5469,5482] [2023-08-30 17:13:49,531 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 17:13:49,997 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:13:49,997 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:13:50,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:13:50,077 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 17:13:50,105 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i[5469,5482] [2023-08-30 17:13:50,292 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 17:13:50,386 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:13:50,386 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 17:13:50,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:13:50,913 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:13:50,913 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:13:50,913 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:13:50,913 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:13:50,913 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:13:50,914 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:13:50,914 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 17:13:50,920 INFO L208 MainTranslator]: Completed translation [2023-08-30 17:13:50,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:50 WrapperNode [2023-08-30 17:13:50,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 17:13:50,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 17:13:50,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 17:13:50,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 17:13:50,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:50" (1/1) ... [2023-08-30 17:13:51,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:50" (1/1) ... [2023-08-30 17:13:51,127 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 75, statements flattened = 829 [2023-08-30 17:13:51,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 17:13:51,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 17:13:51,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 17:13:51,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 17:13:51,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:50" (1/1) ... [2023-08-30 17:13:51,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:50" (1/1) ... [2023-08-30 17:13:51,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:50" (1/1) ... [2023-08-30 17:13:51,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:50" (1/1) ... [2023-08-30 17:13:51,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:50" (1/1) ... [2023-08-30 17:13:51,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:50" (1/1) ... [2023-08-30 17:13:51,175 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:50" (1/1) ... [2023-08-30 17:13:51,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:50" (1/1) ... [2023-08-30 17:13:51,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 17:13:51,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 17:13:51,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 17:13:51,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 17:13:51,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:50" (1/1) ... [2023-08-30 17:13:51,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:13:51,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:13:51,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 17:13:51,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 17:13:51,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 17:13:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 17:13:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 17:13:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 17:13:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 17:13:51,271 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 17:13:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 17:13:51,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 17:13:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 17:13:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 17:13:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 17:13:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 17:13:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 17:13:51,272 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 17:13:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 17:13:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 17:13:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 17:13:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 17:13:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 17:13:51,276 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 17:13:51,775 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 17:13:51,777 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 17:13:52,691 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 17:13:52,725 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 17:13:52,725 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-08-30 17:13:52,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:13:52 BoogieIcfgContainer [2023-08-30 17:13:52,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 17:13:52,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 17:13:52,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 17:13:52,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 17:13:52,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:13:46" (1/3) ... [2023-08-30 17:13:52,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340608a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:13:52, skipping insertion in model container [2023-08-30 17:13:52,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:13:50" (2/3) ... [2023-08-30 17:13:52,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340608a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:13:52, skipping insertion in model container [2023-08-30 17:13:52,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:13:52" (3/3) ... [2023-08-30 17:13:52,736 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i [2023-08-30 17:13:52,743 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 17:13:52,751 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 17:13:52,752 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-30 17:13:52,752 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 17:13:52,938 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 17:13:52,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 858 places, 911 transitions, 1838 flow [2023-08-30 17:13:53,251 INFO L130 PetriNetUnfolder]: 60/909 cut-off events. [2023-08-30 17:13:53,251 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 17:13:53,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 909 events. 60/909 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1669 event pairs, 0 based on Foata normal form. 0/846 useless extension candidates. Maximal degree in co-relation 752. Up to 9 conditions per place. [2023-08-30 17:13:53,263 INFO L82 GeneralOperation]: Start removeDead. Operand has 858 places, 911 transitions, 1838 flow [2023-08-30 17:13:53,273 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 848 places, 901 transitions, 1811 flow [2023-08-30 17:13:53,276 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 17:13:53,283 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 848 places, 901 transitions, 1811 flow [2023-08-30 17:13:53,286 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 848 places, 901 transitions, 1811 flow [2023-08-30 17:13:53,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 848 places, 901 transitions, 1811 flow [2023-08-30 17:13:53,482 INFO L130 PetriNetUnfolder]: 60/901 cut-off events. [2023-08-30 17:13:53,483 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 17:13:53,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 901 events. 60/901 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1537 event pairs, 0 based on Foata normal form. 0/838 useless extension candidates. Maximal degree in co-relation 752. Up to 9 conditions per place. [2023-08-30 17:13:53,508 INFO L119 LiptonReduction]: Number of co-enabled transitions 49770 [2023-08-30 17:15:32,567 WARN L222 SmtUtils]: Spent 8.75s on a formula simplification that was a NOOP. DAG size: 303 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:15:39,545 WARN L222 SmtUtils]: Spent 6.97s on a formula simplification that was a NOOP. DAG size: 285 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:15:57,460 WARN L222 SmtUtils]: Spent 17.91s on a formula simplification. DAG size of input: 309 DAG size of output: 307 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:16:04,314 WARN L222 SmtUtils]: Spent 6.85s on a formula simplification that was a NOOP. DAG size: 288 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:16:42,234 WARN L222 SmtUtils]: Spent 33.52s on a formula simplification. DAG size of input: 659 DAG size of output: 657 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:16:55,945 WARN L222 SmtUtils]: Spent 13.69s 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) [2023-08-30 17:19:03,860 WARN L222 SmtUtils]: Spent 2.13m on a formula simplification. DAG size of input: 662 DAG size of output: 660 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 17:19:59,600 WARN L222 SmtUtils]: Spent 55.72s 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) [2023-08-30 17:20:09,086 INFO L134 LiptonReduction]: Checked pairs total: 39117 [2023-08-30 17:20:09,086 INFO L136 LiptonReduction]: Total number of compositions: 1006 [2023-08-30 17:20:09,097 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 17:20:09,101 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;@149cadcb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 17:20:09,101 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-30 17:20:09,109 INFO L130 PetriNetUnfolder]: 4/8 cut-off events. [2023-08-30 17:20:09,109 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:20:09,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:20:09,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 17:20:09,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 17:20:09,115 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:20:09,115 INFO L85 PathProgramCache]: Analyzing trace with hash 3454771, now seen corresponding path program 1 times [2023-08-30 17:20:09,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:20:09,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399629198] [2023-08-30 17:20:09,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:20:09,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:20:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:20:09,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:20:09,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:20:09,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399629198] [2023-08-30 17:20:09,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399629198] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:20:09,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:20:09,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 17:20:09,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588551050] [2023-08-30 17:20:09,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:20:09,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 17:20:09,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:20:09,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 17:20:09,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 17:20:09,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 874 out of 1917 [2023-08-30 17:20:09,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 54 transitions, 117 flow. Second operand has 2 states, 2 states have (on average 875.5) internal successors, (1751), 2 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:09,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:20:09,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 874 of 1917 [2023-08-30 17:20:09,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:20:09,934 INFO L130 PetriNetUnfolder]: 115/229 cut-off events. [2023-08-30 17:20:09,935 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-08-30 17:20:09,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 229 events. 115/229 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 649 event pairs, 105 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 326. Up to 230 conditions per place. [2023-08-30 17:20:09,937 INFO L137 encePairwiseOnDemand]: 1904/1917 looper letters, 40 selfloop transitions, 0 changer transitions 1/41 dead transitions. [2023-08-30 17:20:09,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 41 transitions, 173 flow [2023-08-30 17:20:09,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 17:20:09,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 17:20:09,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1802 transitions. [2023-08-30 17:20:09,962 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4700052164840897 [2023-08-30 17:20:09,963 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1802 transitions. [2023-08-30 17:20:09,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1802 transitions. [2023-08-30 17:20:09,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:20:09,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1802 transitions. [2023-08-30 17:20:09,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 901.0) internal successors, (1802), 2 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:09,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1917.0) internal successors, (5751), 3 states have internal predecessors, (5751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:09,997 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1917.0) internal successors, (5751), 3 states have internal predecessors, (5751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:09,999 INFO L175 Difference]: Start difference. First operand has 39 places, 54 transitions, 117 flow. Second operand 2 states and 1802 transitions. [2023-08-30 17:20:10,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 41 transitions, 173 flow [2023-08-30 17:20:10,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 168 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 17:20:10,003 INFO L231 Difference]: Finished difference. Result has 36 places, 40 transitions, 84 flow [2023-08-30 17:20:10,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1917, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=84, PETRI_PLACES=36, PETRI_TRANSITIONS=40} [2023-08-30 17:20:10,008 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -3 predicate places. [2023-08-30 17:20:10,008 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 40 transitions, 84 flow [2023-08-30 17:20:10,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 875.5) internal successors, (1751), 2 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:10,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:20:10,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:20:10,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 17:20:10,011 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 17:20:10,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:20:10,018 INFO L85 PathProgramCache]: Analyzing trace with hash 739763751, now seen corresponding path program 1 times [2023-08-30 17:20:10,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:20:10,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188018873] [2023-08-30 17:20:10,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:20:10,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:20:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:20:10,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:20:10,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:20:10,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188018873] [2023-08-30 17:20:10,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188018873] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:20:10,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:20:10,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 17:20:10,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467906567] [2023-08-30 17:20:10,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:20:10,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:20:10,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:20:10,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:20:10,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 17:20:10,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 866 out of 1917 [2023-08-30 17:20:10,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 40 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 868.3333333333334) internal successors, (2605), 3 states have internal predecessors, (2605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:10,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:20:10,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 866 of 1917 [2023-08-30 17:20:10,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:20:11,082 INFO L130 PetriNetUnfolder]: 106/213 cut-off events. [2023-08-30 17:20:11,082 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-30 17:20:11,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 213 events. 106/213 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 588 event pairs, 96 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 433. Up to 213 conditions per place. [2023-08-30 17:20:11,084 INFO L137 encePairwiseOnDemand]: 1913/1917 looper letters, 39 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2023-08-30 17:20:11,084 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 168 flow [2023-08-30 17:20:11,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:20:11,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:20:11,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2641 transitions. [2023-08-30 17:20:11,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4592244826986611 [2023-08-30 17:20:11,092 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2641 transitions. [2023-08-30 17:20:11,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2641 transitions. [2023-08-30 17:20:11,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:20:11,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2641 transitions. [2023-08-30 17:20:11,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 880.3333333333334) internal successors, (2641), 3 states have internal predecessors, (2641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:11,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1917.0) internal successors, (7668), 4 states have internal predecessors, (7668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:11,113 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1917.0) internal successors, (7668), 4 states have internal predecessors, (7668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:11,113 INFO L175 Difference]: Start difference. First operand has 36 places, 40 transitions, 84 flow. Second operand 3 states and 2641 transitions. [2023-08-30 17:20:11,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 168 flow [2023-08-30 17:20:11,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 168 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 17:20:11,115 INFO L231 Difference]: Finished difference. Result has 38 places, 41 transitions, 98 flow [2023-08-30 17:20:11,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1917, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=38, PETRI_TRANSITIONS=41} [2023-08-30 17:20:11,116 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2023-08-30 17:20:11,116 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 41 transitions, 98 flow [2023-08-30 17:20:11,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 868.3333333333334) internal successors, (2605), 3 states have internal predecessors, (2605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:11,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:20:11,119 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:20:11,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 17:20:11,120 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 17:20:11,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:20:11,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1340012363, now seen corresponding path program 1 times [2023-08-30 17:20:11,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:20:11,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707217071] [2023-08-30 17:20:11,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:20:11,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:20:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:20:11,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:20:11,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:20:11,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707217071] [2023-08-30 17:20:11,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707217071] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:20:11,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592270170] [2023-08-30 17:20:11,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:20:11,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:20:11,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:20:11,801 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) [2023-08-30 17:20:11,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 17:20:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:20:12,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-30 17:20:12,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:20:12,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 17:20:12,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 17:20:12,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592270170] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:20:12,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 17:20:12,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-30 17:20:12,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101854183] [2023-08-30 17:20:12,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:20:12,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:20:12,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:20:12,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:20:12,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 17:20:12,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 855 out of 1917 [2023-08-30 17:20:12,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 41 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 857.6666666666666) internal successors, (2573), 3 states have internal predecessors, (2573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:12,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:20:12,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 855 of 1917 [2023-08-30 17:20:12,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:20:12,963 INFO L130 PetriNetUnfolder]: 145/292 cut-off events. [2023-08-30 17:20:12,963 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-30 17:20:12,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 292 events. 145/292 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1051 event pairs, 42 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 597. Up to 202 conditions per place. [2023-08-30 17:20:12,965 INFO L137 encePairwiseOnDemand]: 1912/1917 looper letters, 49 selfloop transitions, 4 changer transitions 0/53 dead transitions. [2023-08-30 17:20:12,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 53 transitions, 229 flow [2023-08-30 17:20:12,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:20:12,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:20:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2618 transitions. [2023-08-30 17:20:12,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4552251782298731 [2023-08-30 17:20:12,973 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2618 transitions. [2023-08-30 17:20:12,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2618 transitions. [2023-08-30 17:20:12,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:20:12,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2618 transitions. [2023-08-30 17:20:12,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 872.6666666666666) internal successors, (2618), 3 states have internal predecessors, (2618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:12,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1917.0) internal successors, (7668), 4 states have internal predecessors, (7668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:12,995 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1917.0) internal successors, (7668), 4 states have internal predecessors, (7668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:12,995 INFO L175 Difference]: Start difference. First operand has 38 places, 41 transitions, 98 flow. Second operand 3 states and 2618 transitions. [2023-08-30 17:20:12,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 53 transitions, 229 flow [2023-08-30 17:20:12,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 53 transitions, 225 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 17:20:12,997 INFO L231 Difference]: Finished difference. Result has 40 places, 44 transitions, 120 flow [2023-08-30 17:20:12,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1917, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=40, PETRI_TRANSITIONS=44} [2023-08-30 17:20:12,999 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-08-30 17:20:12,999 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 44 transitions, 120 flow [2023-08-30 17:20:13,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 857.6666666666666) internal successors, (2573), 3 states have internal predecessors, (2573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:13,002 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:20:13,002 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:20:13,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-30 17:20:13,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:20:13,211 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 17:20:13,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:20:13,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1409301911, now seen corresponding path program 1 times [2023-08-30 17:20:13,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:20:13,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151337440] [2023-08-30 17:20:13,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:20:13,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:20:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:20:14,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:20:14,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:20:14,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151337440] [2023-08-30 17:20:14,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151337440] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:20:14,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875122027] [2023-08-30 17:20:14,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:20:14,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:20:14,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:20:14,187 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) [2023-08-30 17:20:14,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 17:20:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:20:14,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 17:20:14,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:20:14,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:20:14,822 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 [2023-08-30 17:20:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 17:20:14,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 17:20:14,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875122027] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:20:14,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 17:20:14,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2023-08-30 17:20:14,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910087779] [2023-08-30 17:20:14,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:20:14,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 17:20:14,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:20:14,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 17:20:14,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-30 17:20:15,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 854 out of 1917 [2023-08-30 17:20:15,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 44 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 855.8) internal successors, (4279), 5 states have internal predecessors, (4279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:15,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:20:15,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 854 of 1917 [2023-08-30 17:20:15,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:20:15,892 INFO L130 PetriNetUnfolder]: 139/280 cut-off events. [2023-08-30 17:20:15,893 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2023-08-30 17:20:15,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 280 events. 139/280 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 957 event pairs, 60 based on Foata normal form. 6/276 useless extension candidates. Maximal degree in co-relation 687. Up to 197 conditions per place. [2023-08-30 17:20:15,894 INFO L137 encePairwiseOnDemand]: 1913/1917 looper letters, 43 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2023-08-30 17:20:15,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 47 transitions, 221 flow [2023-08-30 17:20:15,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 17:20:15,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 17:20:15,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3461 transitions. [2023-08-30 17:20:15,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4513562858633281 [2023-08-30 17:20:15,903 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3461 transitions. [2023-08-30 17:20:15,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3461 transitions. [2023-08-30 17:20:15,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:20:15,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3461 transitions. [2023-08-30 17:20:15,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 865.25) internal successors, (3461), 4 states have internal predecessors, (3461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:15,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1917.0) internal successors, (9585), 5 states have internal predecessors, (9585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:15,923 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1917.0) internal successors, (9585), 5 states have internal predecessors, (9585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:15,923 INFO L175 Difference]: Start difference. First operand has 40 places, 44 transitions, 120 flow. Second operand 4 states and 3461 transitions. [2023-08-30 17:20:15,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 47 transitions, 221 flow [2023-08-30 17:20:15,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 17:20:15,925 INFO L231 Difference]: Finished difference. Result has 41 places, 43 transitions, 120 flow [2023-08-30 17:20:15,925 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1917, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=41, PETRI_TRANSITIONS=43} [2023-08-30 17:20:15,926 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2023-08-30 17:20:15,926 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 43 transitions, 120 flow [2023-08-30 17:20:15,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 855.8) internal successors, (4279), 5 states have internal predecessors, (4279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:15,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:20:15,928 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:20:15,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-30 17:20:16,136 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,SelfDestructingSolverStorable3 [2023-08-30 17:20:16,136 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 17:20:16,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:20:16,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1332905514, now seen corresponding path program 1 times [2023-08-30 17:20:16,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:20:16,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483691603] [2023-08-30 17:20:16,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:20:16,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:20:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:20:16,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:20:16,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:20:16,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483691603] [2023-08-30 17:20:16,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483691603] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:20:16,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351281186] [2023-08-30 17:20:16,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:20:16,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:20:16,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:20:16,955 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 17:20:16,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 17:20:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:20:17,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-30 17:20:17,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:20:17,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:20:17,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 17:20:18,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:20:18,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351281186] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 17:20:18,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 17:20:18,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-30 17:20:18,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740051386] [2023-08-30 17:20:18,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 17:20:18,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 17:20:18,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:20:18,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 17:20:18,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-08-30 17:20:18,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 860 out of 1917 [2023-08-30 17:20:18,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 43 transitions, 120 flow. Second operand has 8 states, 8 states have (on average 862.625) internal successors, (6901), 8 states have internal predecessors, (6901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:18,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:20:18,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 860 of 1917 [2023-08-30 17:20:18,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:20:19,162 INFO L130 PetriNetUnfolder]: 139/285 cut-off events. [2023-08-30 17:20:19,163 INFO L131 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2023-08-30 17:20:19,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 285 events. 139/285 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 942 event pairs, 109 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 687. Up to 275 conditions per place. [2023-08-30 17:20:19,164 INFO L137 encePairwiseOnDemand]: 1909/1917 looper letters, 36 selfloop transitions, 12 changer transitions 0/48 dead transitions. [2023-08-30 17:20:19,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 48 transitions, 232 flow [2023-08-30 17:20:19,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 17:20:19,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 17:20:19,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6075 transitions. [2023-08-30 17:20:19,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45271629778672035 [2023-08-30 17:20:19,194 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 6075 transitions. [2023-08-30 17:20:19,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 6075 transitions. [2023-08-30 17:20:19,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:20:19,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 6075 transitions. [2023-08-30 17:20:19,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 867.8571428571429) internal successors, (6075), 7 states have internal predecessors, (6075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:19,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1917.0) internal successors, (15336), 8 states have internal predecessors, (15336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:19,222 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1917.0) internal successors, (15336), 8 states have internal predecessors, (15336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:19,222 INFO L175 Difference]: Start difference. First operand has 41 places, 43 transitions, 120 flow. Second operand 7 states and 6075 transitions. [2023-08-30 17:20:19,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 48 transitions, 232 flow [2023-08-30 17:20:19,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 48 transitions, 224 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 17:20:19,224 INFO L231 Difference]: Finished difference. Result has 44 places, 48 transitions, 156 flow [2023-08-30 17:20:19,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1917, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=156, PETRI_PLACES=44, PETRI_TRANSITIONS=48} [2023-08-30 17:20:19,225 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 5 predicate places. [2023-08-30 17:20:19,225 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 48 transitions, 156 flow [2023-08-30 17:20:19,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 862.625) internal successors, (6901), 8 states have internal predecessors, (6901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:19,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:20:19,227 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:20:19,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 17:20:19,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:20:19,438 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 17:20:19,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:20:19,438 INFO L85 PathProgramCache]: Analyzing trace with hash 174776568, now seen corresponding path program 2 times [2023-08-30 17:20:19,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:20:19,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324175073] [2023-08-30 17:20:19,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:20:19,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:20:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:20:20,230 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:20:20,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:20:20,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324175073] [2023-08-30 17:20:20,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324175073] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:20:20,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242201544] [2023-08-30 17:20:20,231 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 17:20:20,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:20:20,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:20:20,233 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 17:20:20,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 17:20:21,317 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 17:20:21,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 17:20:21,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-30 17:20:21,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:20:21,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-30 17:20:21,751 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 17:20:21,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 17:20:21,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242201544] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:20:21,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 17:20:21,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-08-30 17:20:21,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104578466] [2023-08-30 17:20:21,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:20:21,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 17:20:21,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:20:21,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 17:20:21,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-30 17:20:21,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 853 out of 1917 [2023-08-30 17:20:21,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 48 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 856.75) internal successors, (3427), 4 states have internal predecessors, (3427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:21,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:20:21,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 853 of 1917 [2023-08-30 17:20:21,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:20:22,626 INFO L130 PetriNetUnfolder]: 136/286 cut-off events. [2023-08-30 17:20:22,626 INFO L131 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2023-08-30 17:20:22,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 286 events. 136/286 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 989 event pairs, 54 based on Foata normal form. 8/285 useless extension candidates. Maximal degree in co-relation 680. Up to 159 conditions per place. [2023-08-30 17:20:22,627 INFO L137 encePairwiseOnDemand]: 1910/1917 looper letters, 45 selfloop transitions, 7 changer transitions 7/59 dead transitions. [2023-08-30 17:20:22,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 59 transitions, 308 flow [2023-08-30 17:20:22,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 17:20:22,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 17:20:22,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3462 transitions. [2023-08-30 17:20:22,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4514866979655712 [2023-08-30 17:20:22,635 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3462 transitions. [2023-08-30 17:20:22,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3462 transitions. [2023-08-30 17:20:22,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:20:22,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3462 transitions. [2023-08-30 17:20:22,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 865.5) internal successors, (3462), 4 states have internal predecessors, (3462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:22,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1917.0) internal successors, (9585), 5 states have internal predecessors, (9585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:22,651 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1917.0) internal successors, (9585), 5 states have internal predecessors, (9585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:22,651 INFO L175 Difference]: Start difference. First operand has 44 places, 48 transitions, 156 flow. Second operand 4 states and 3462 transitions. [2023-08-30 17:20:22,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 59 transitions, 308 flow [2023-08-30 17:20:22,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 59 transitions, 285 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-30 17:20:22,655 INFO L231 Difference]: Finished difference. Result has 45 places, 49 transitions, 161 flow [2023-08-30 17:20:22,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1917, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=161, PETRI_PLACES=45, PETRI_TRANSITIONS=49} [2023-08-30 17:20:22,657 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 6 predicate places. [2023-08-30 17:20:22,657 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 49 transitions, 161 flow [2023-08-30 17:20:22,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 856.75) internal successors, (3427), 4 states have internal predecessors, (3427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:22,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:20:22,660 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:20:22,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-30 17:20:22,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:20:22,871 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 17:20:22,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:20:22,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1123117706, now seen corresponding path program 1 times [2023-08-30 17:20:22,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:20:22,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985618869] [2023-08-30 17:20:22,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:20:22,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:20:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:20:24,108 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:20:24,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:20:24,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985618869] [2023-08-30 17:20:24,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985618869] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:20:24,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006578887] [2023-08-30 17:20:24,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:20:24,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:20:24,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:20:24,113 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 17:20:24,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-30 17:20:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:20:26,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-30 17:20:26,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:20:26,579 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:20:26,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 17:20:26,811 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:20:26,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006578887] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 17:20:26,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 17:20:26,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-30 17:20:26,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615030279] [2023-08-30 17:20:26,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 17:20:26,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 17:20:26,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:20:26,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 17:20:26,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-08-30 17:20:27,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 862 out of 1917 [2023-08-30 17:20:27,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 49 transitions, 161 flow. Second operand has 17 states, 17 states have (on average 863.8235294117648) internal successors, (14685), 17 states have internal predecessors, (14685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:27,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:20:27,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 862 of 1917 [2023-08-30 17:20:27,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:20:28,542 INFO L130 PetriNetUnfolder]: 122/281 cut-off events. [2023-08-30 17:20:28,543 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-08-30 17:20:28,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 755 conditions, 281 events. 122/281 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 983 event pairs, 102 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 748. Up to 267 conditions per place. [2023-08-30 17:20:28,544 INFO L137 encePairwiseOnDemand]: 1909/1917 looper letters, 41 selfloop transitions, 17 changer transitions 0/58 dead transitions. [2023-08-30 17:20:28,544 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 58 transitions, 313 flow [2023-08-30 17:20:28,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 17:20:28,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 17:20:28,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 10416 transitions. [2023-08-30 17:20:28,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4527908189880021 [2023-08-30 17:20:28,563 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 10416 transitions. [2023-08-30 17:20:28,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 10416 transitions. [2023-08-30 17:20:28,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:20:28,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 10416 transitions. [2023-08-30 17:20:28,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 868.0) internal successors, (10416), 12 states have internal predecessors, (10416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:28,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1917.0) internal successors, (24921), 13 states have internal predecessors, (24921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:28,608 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1917.0) internal successors, (24921), 13 states have internal predecessors, (24921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:28,608 INFO L175 Difference]: Start difference. First operand has 45 places, 49 transitions, 161 flow. Second operand 12 states and 10416 transitions. [2023-08-30 17:20:28,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 58 transitions, 313 flow [2023-08-30 17:20:28,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 58 transitions, 299 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-30 17:20:28,611 INFO L231 Difference]: Finished difference. Result has 60 places, 58 transitions, 279 flow [2023-08-30 17:20:28,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1917, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=279, PETRI_PLACES=60, PETRI_TRANSITIONS=58} [2023-08-30 17:20:28,611 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 21 predicate places. [2023-08-30 17:20:28,612 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 58 transitions, 279 flow [2023-08-30 17:20:28,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 863.8235294117648) internal successors, (14685), 17 states have internal predecessors, (14685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:28,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:20:28,615 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:20:28,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-30 17:20:28,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:20:28,825 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 17:20:28,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:20:28,825 INFO L85 PathProgramCache]: Analyzing trace with hash 8662986, now seen corresponding path program 2 times [2023-08-30 17:20:28,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:20:28,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819120005] [2023-08-30 17:20:28,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:20:28,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:20:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:20:30,114 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:20:30,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:20:30,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819120005] [2023-08-30 17:20:30,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819120005] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 17:20:30,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032279061] [2023-08-30 17:20:30,114 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 17:20:30,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:20:30,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:20:30,115 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 17:20:30,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-30 17:20:31,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 17:20:31,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 17:20:31,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 1204 conjuncts, 27 conjunts are in the unsatisfiable core [2023-08-30 17:20:31,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 17:20:31,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-30 17:20:31,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 17:20:31,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2023-08-30 17:20:31,940 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 17:20:31,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 17:20:31,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032279061] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:20:31,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 17:20:31,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 16 [2023-08-30 17:20:31,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825554812] [2023-08-30 17:20:31,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:20:31,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 17:20:31,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:20:31,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 17:20:31,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-08-30 17:20:32,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 852 out of 1917 [2023-08-30 17:20:32,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 58 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 854.6666666666666) internal successors, (5128), 6 states have internal predecessors, (5128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:32,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:20:32,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 852 of 1917 [2023-08-30 17:20:32,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:20:33,241 INFO L130 PetriNetUnfolder]: 116/269 cut-off events. [2023-08-30 17:20:33,242 INFO L131 PetriNetUnfolder]: For 106/106 co-relation queries the response was YES. [2023-08-30 17:20:33,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 269 events. 116/269 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 963 event pairs, 52 based on Foata normal form. 6/268 useless extension candidates. Maximal degree in co-relation 712. Up to 159 conditions per place. [2023-08-30 17:20:33,243 INFO L137 encePairwiseOnDemand]: 1911/1917 looper letters, 0 selfloop transitions, 0 changer transitions 66/66 dead transitions. [2023-08-30 17:20:33,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 66 transitions, 437 flow [2023-08-30 17:20:33,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 17:20:33,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 17:20:33,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4309 transitions. [2023-08-30 17:20:33,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4495565988523735 [2023-08-30 17:20:33,251 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 4309 transitions. [2023-08-30 17:20:33,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 4309 transitions. [2023-08-30 17:20:33,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:20:33,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 4309 transitions. [2023-08-30 17:20:33,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 861.8) internal successors, (4309), 5 states have internal predecessors, (4309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:33,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1917.0) internal successors, (11502), 6 states have internal predecessors, (11502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:33,264 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1917.0) internal successors, (11502), 6 states have internal predecessors, (11502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:33,264 INFO L175 Difference]: Start difference. First operand has 60 places, 58 transitions, 279 flow. Second operand 5 states and 4309 transitions. [2023-08-30 17:20:33,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 66 transitions, 437 flow [2023-08-30 17:20:33,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 66 transitions, 413 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-08-30 17:20:33,267 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2023-08-30 17:20:33,267 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1917, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2023-08-30 17:20:33,268 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 22 predicate places. [2023-08-30 17:20:33,268 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2023-08-30 17:20:33,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 854.6666666666666) internal successors, (5128), 6 states have internal predecessors, (5128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:20:33,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-08-30 17:20:33,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2023-08-30 17:20:33,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-30 17:20:33,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-08-30 17:20:33,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-08-30 17:20:33,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-08-30 17:20:33,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-08-30 17:20:33,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-30 17:20:33,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 17:20:33,480 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2023-08-30 17:20:33,484 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 17:20:33,484 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 17:20:33,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:20:33 BasicIcfg [2023-08-30 17:20:33,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 17:20:33,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 17:20:33,487 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 17:20:33,487 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 17:20:33,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:13:52" (3/4) ... [2023-08-30 17:20:33,490 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 17:20:33,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 17:20:33,494 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_pc8736x_gpio_change [2023-08-30 17:20:33,508 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 94 nodes and edges [2023-08-30 17:20:33,509 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-08-30 17:20:33,509 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-08-30 17:20:33,510 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 17:20:33,574 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 17:20:33,574 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 17:20:33,574 INFO L158 Benchmark]: Toolchain (without parser) took 406718.73ms. Allocated memory was 75.5MB in the beginning and 553.6MB in the end (delta: 478.2MB). Free memory was 42.4MB in the beginning and 440.0MB in the end (delta: -397.7MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. [2023-08-30 17:20:33,575 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory was 34.6MB in the beginning and 34.6MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:20:33,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4064.24ms. Allocated memory was 75.5MB in the beginning and 117.4MB in the end (delta: 41.9MB). Free memory was 42.2MB in the beginning and 28.3MB in the end (delta: 13.9MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2023-08-30 17:20:33,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 205.96ms. Allocated memory is still 117.4MB. Free memory was 28.3MB in the beginning and 50.4MB in the end (delta: -22.1MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2023-08-30 17:20:33,575 INFO L158 Benchmark]: Boogie Preprocessor took 60.90ms. Allocated memory is still 117.4MB. Free memory was 50.4MB in the beginning and 44.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-30 17:20:33,576 INFO L158 Benchmark]: RCFGBuilder took 1539.58ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 44.1MB in the beginning and 64.9MB in the end (delta: -20.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-08-30 17:20:33,576 INFO L158 Benchmark]: TraceAbstraction took 400755.73ms. Allocated memory was 159.4MB in the beginning and 553.6MB in the end (delta: 394.3MB). Free memory was 64.5MB in the beginning and 449.8MB in the end (delta: -385.3MB). Peak memory consumption was 306.0MB. Max. memory is 16.1GB. [2023-08-30 17:20:33,576 INFO L158 Benchmark]: Witness Printer took 86.75ms. Allocated memory is still 553.6MB. Free memory was 449.8MB in the beginning and 440.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-08-30 17:20:33,578 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory was 34.6MB in the beginning and 34.6MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4064.24ms. Allocated memory was 75.5MB in the beginning and 117.4MB in the end (delta: 41.9MB). Free memory was 42.2MB in the beginning and 28.3MB in the end (delta: 13.9MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 205.96ms. Allocated memory is still 117.4MB. Free memory was 28.3MB in the beginning and 50.4MB in the end (delta: -22.1MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.90ms. Allocated memory is still 117.4MB. Free memory was 50.4MB in the beginning and 44.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1539.58ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 44.1MB in the beginning and 64.9MB in the end (delta: -20.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 400755.73ms. Allocated memory was 159.4MB in the beginning and 553.6MB in the end (delta: 394.3MB). Free memory was 64.5MB in the beginning and 449.8MB in the end (delta: -385.3MB). Peak memory consumption was 306.0MB. Max. memory is 16.1GB. * Witness Printer took 86.75ms. Allocated memory is still 553.6MB. Free memory was 449.8MB in the beginning and 440.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 375.8s, 848 PlacesBefore, 39 PlacesAfterwards, 901 TransitionsBefore, 54 TransitionsAfterwards, 49770 CoEnabledTransitionPairs, 11 FixpointIterations, 559 TrivialSequentialCompositions, 280 ConcurrentSequentialCompositions, 85 TrivialYvCompositions, 44 ConcurrentYvCompositions, 38 ChoiceCompositions, 1006 TotalNumberOfCompositions, 39117 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36303, independent: 36127, independent conditional: 0, independent unconditional: 36127, dependent: 176, dependent conditional: 0, dependent unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 26140, independent: 26076, independent conditional: 0, independent unconditional: 26076, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 36303, independent: 10051, independent conditional: 0, independent unconditional: 10051, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 26140, unknown conditional: 0, unknown unconditional: 26140] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 32, Positive conditional cache size: 0, Positive unconditional cache size: 32, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, 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, 1134 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: 400.5s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 376.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1106 SdHoareTripleChecker+Valid, 6.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 671 mSDsluCounter, 273 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 150 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2433 IncrementalHoareTripleChecker+Invalid, 2517 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 123 mSDtfsCounter, 2433 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=279occurred in iteration=7, InterpolantAutomatonStates: 40, 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: 0.4s SsaConstructionTime, 6.3s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 198 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 216 ConstructedInterpolants, 2 QuantifiedInterpolants, 1057 SizeOfPredicates, 92 NumberOfNonLiveVariables, 7017 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 67/167 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! [2023-08-30 17:20:33,617 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE