/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:56:31,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:56:31,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:56:31,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:56:31,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:56:31,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:56:31,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:56:31,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:56:31,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:56:31,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:56:31,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:56:31,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:56:31,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:56:31,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:56:31,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:56:31,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:56:31,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:56:31,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:56:31,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:56:31,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:56:31,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:56:31,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:56:31,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:56:31,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:56:31,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 18:56:31,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 18:56:31,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 18:56:31,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 18:56:31,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 18:56:31,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 18:56:31,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 18:56:31,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 18:56:31,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 18:56:31,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 18:56:31,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 18:56:31,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 18:56:31,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 18:56:31,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 18:56:31,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:56:31,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:56:31,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:56:31,867 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-27 18:56:31,887 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:56:31,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:56:31,888 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:56:31,888 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:56:31,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:56:31,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:56:31,889 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:56:31,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:56:31,889 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:56:31,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:56:31,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:56:31,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:56:31,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:56:31,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:56:31,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:56:31,890 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:56:31,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:56:31,891 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:56:31,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:56:31,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:56:31,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:56:31,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:56:31,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:56:31,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:56:31,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:56:31,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:56:31,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:56:31,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:56:31,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:56:31,892 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:56:31,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:56:31,892 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:56:32,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:56:32,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:56:32,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:56:32,071 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:56:32,072 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:56:32,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2023-01-27 18:56:33,085 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:56:33,421 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:56:33,421 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2023-01-27 18:56:33,450 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/618f8cc86/4045462d16a041eeb08d47b63e2b6e55/FLAG58a4dff27 [2023-01-27 18:56:33,461 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/618f8cc86/4045462d16a041eeb08d47b63e2b6e55 [2023-01-27 18:56:33,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:56:33,464 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:56:33,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:56:33,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:56:33,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:56:33,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:56:33" (1/1) ... [2023-01-27 18:56:33,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53dcb644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:56:33, skipping insertion in model container [2023-01-27 18:56:33,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:56:33" (1/1) ... [2023-01-27 18:56:33,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:56:33,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:56:33,749 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i[5469,5482] [2023-01-27 18:56:35,637 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:56:35,967 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:56:35,967 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:56:36,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:56:36,021 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:56:36,036 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i[5469,5482] [2023-01-27 18:56:36,140 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:56:36,221 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:56:36,221 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:56:36,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:56:36,565 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:56:36,566 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:56:36,566 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:56:36,566 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:56:36,566 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:56:36,566 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:56:36,566 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:56:36,570 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:56:36,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:56:36 WrapperNode [2023-01-27 18:56:36,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:56:36,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:56:36,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:56:36,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:56:36,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:56:36" (1/1) ... [2023-01-27 18:56:36,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:56:36" (1/1) ... [2023-01-27 18:56:36,707 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 53, statements flattened = 708 [2023-01-27 18:56:36,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:56:36,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:56:36,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:56:36,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:56:36,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:56:36" (1/1) ... [2023-01-27 18:56:36,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:56:36" (1/1) ... [2023-01-27 18:56:36,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:56:36" (1/1) ... [2023-01-27 18:56:36,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:56:36" (1/1) ... [2023-01-27 18:56:36,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:56:36" (1/1) ... [2023-01-27 18:56:36,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:56:36" (1/1) ... [2023-01-27 18:56:36,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:56:36" (1/1) ... [2023-01-27 18:56:36,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:56:36" (1/1) ... [2023-01-27 18:56:36,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:56:36,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:56:36,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:56:36,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:56:36,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:56:36" (1/1) ... [2023-01-27 18:56:36,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:56:36,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:56:36,803 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) [2023-01-27 18:56:36,823 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 [2023-01-27 18:56:36,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 18:56:36,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 18:56:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:56:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-27 18:56:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:56:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:56:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2023-01-27 18:56:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2023-01-27 18:56:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-27 18:56:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:56:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-27 18:56:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:56:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:56:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-27 18:56:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-27 18:56:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-27 18:56:36,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:56:36,836 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 18:56:37,225 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:56:37,226 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:56:37,787 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:56:37,794 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:56:37,794 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2023-01-27 18:56:37,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:56:37 BoogieIcfgContainer [2023-01-27 18:56:37,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:56:37,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:56:37,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:56:37,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:56:37,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:56:33" (1/3) ... [2023-01-27 18:56:37,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68857b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:56:37, skipping insertion in model container [2023-01-27 18:56:37,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:56:36" (2/3) ... [2023-01-27 18:56:37,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68857b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:56:37, skipping insertion in model container [2023-01-27 18:56:37,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:56:37" (3/3) ... [2023-01-27 18:56:37,801 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2023-01-27 18:56:37,812 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:56:37,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-01-27 18:56:37,812 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:56:37,877 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 18:56:37,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 724 places, 771 transitions, 1558 flow [2023-01-27 18:56:38,078 INFO L130 PetriNetUnfolder]: 54/769 cut-off events. [2023-01-27 18:56:38,078 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:56:38,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 769 events. 54/769 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1093 event pairs, 0 based on Foata normal form. 0/712 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-27 18:56:38,085 INFO L82 GeneralOperation]: Start removeDead. Operand has 724 places, 771 transitions, 1558 flow [2023-01-27 18:56:38,095 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 714 places, 761 transitions, 1531 flow [2023-01-27 18:56:38,097 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:56:38,107 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 714 places, 761 transitions, 1531 flow [2023-01-27 18:56:38,111 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 714 places, 761 transitions, 1531 flow [2023-01-27 18:56:38,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 714 places, 761 transitions, 1531 flow [2023-01-27 18:56:38,210 INFO L130 PetriNetUnfolder]: 54/761 cut-off events. [2023-01-27 18:56:38,210 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 18:56:38,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 761 events. 54/761 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1043 event pairs, 0 based on Foata normal form. 0/704 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-27 18:56:38,220 INFO L119 LiptonReduction]: Number of co-enabled transitions 13812 [2023-01-27 18:57:31,051 WARN L222 SmtUtils]: Spent 5.49s on a formula simplification that was a NOOP. DAG size: 336 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:57:41,203 WARN L222 SmtUtils]: Spent 6.13s on a formula simplification that was a NOOP. DAG size: 336 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:58:30,420 WARN L222 SmtUtils]: Spent 42.61s on a formula simplification that was a NOOP. DAG size: 534 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:59:13,310 WARN L222 SmtUtils]: Spent 42.89s on a formula simplification that was a NOOP. DAG size: 534 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:59:54,293 WARN L222 SmtUtils]: Spent 40.98s on a formula simplification that was a NOOP. DAG size: 534 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 19:00:35,443 WARN L222 SmtUtils]: Spent 41.15s on a formula simplification that was a NOOP. DAG size: 534 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 19:02:23,463 WARN L222 SmtUtils]: Spent 1.57m on a formula simplification. DAG size of input: 590 DAG size of output: 585 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 19:03:13,682 WARN L222 SmtUtils]: Spent 50.21s 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) [2023-01-27 19:05:16,774 WARN L222 SmtUtils]: Spent 2.05m on a formula simplification. DAG size of input: 596 DAG size of output: 589 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 19:05:47,340 WARN L222 SmtUtils]: Spent 30.56s 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) [2023-01-27 19:05:56,557 INFO L134 LiptonReduction]: Checked pairs total: 13470 [2023-01-27 19:05:56,557 INFO L136 LiptonReduction]: Total number of compositions: 845 [2023-01-27 19:05:56,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:05:56,569 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=false, 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;@7829b7aa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:05:56,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-01-27 19:05:56,575 INFO L130 PetriNetUnfolder]: 6/12 cut-off events. [2023-01-27 19:05:56,575 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:05:56,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:05:56,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-27 19:05:56,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 19:05:56,579 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:05:56,579 INFO L85 PathProgramCache]: Analyzing trace with hash 2815618, now seen corresponding path program 1 times [2023-01-27 19:05:56,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:05:56,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402634424] [2023-01-27 19:05:56,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:05:56,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:05:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:05:56,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:05:56,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:05:56,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402634424] [2023-01-27 19:05:56,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402634424] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:05:56,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:05:56,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 19:05:56,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021376546] [2023-01-27 19:05:56,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:05:56,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-27 19:05:56,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:05:56,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-27 19:05:56,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-27 19:05:57,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 733 out of 1616 [2023-01-27 19:05:57,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 56 transitions, 121 flow. Second operand has 2 states, 2 states have (on average 734.5) internal successors, (1469), 2 states have internal predecessors, (1469), 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) [2023-01-27 19:05:57,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:05:57,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 733 of 1616 [2023-01-27 19:05:57,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:05:57,219 INFO L130 PetriNetUnfolder]: 169/319 cut-off events. [2023-01-27 19:05:57,219 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-01-27 19:05:57,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 319 events. 169/319 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1048 event pairs, 159 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 566. Up to 320 conditions per place. [2023-01-27 19:05:57,221 INFO L137 encePairwiseOnDemand]: 1601/1616 looper letters, 41 selfloop transitions, 0 changer transitions 0/41 dead transitions. [2023-01-27 19:05:57,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 41 transitions, 173 flow [2023-01-27 19:05:57,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-27 19:05:57,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-27 19:05:57,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1522 transitions. [2023-01-27 19:05:57,235 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4709158415841584 [2023-01-27 19:05:57,235 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1522 transitions. [2023-01-27 19:05:57,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1522 transitions. [2023-01-27 19:05:57,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:05:57,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1522 transitions. [2023-01-27 19:05:57,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 761.0) internal successors, (1522), 2 states have internal predecessors, (1522), 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) [2023-01-27 19:05:57,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1616.0) internal successors, (4848), 3 states have internal predecessors, (4848), 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) [2023-01-27 19:05:57,255 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1616.0) internal successors, (4848), 3 states have internal predecessors, (4848), 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) [2023-01-27 19:05:57,256 INFO L175 Difference]: Start difference. First operand has 39 places, 56 transitions, 121 flow. Second operand 2 states and 1522 transitions. [2023-01-27 19:05:57,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 41 transitions, 173 flow [2023-01-27 19:05:57,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 168 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 19:05:57,270 INFO L231 Difference]: Finished difference. Result has 36 places, 41 transitions, 86 flow [2023-01-27 19:05:57,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1616, 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=86, PETRI_PLACES=36, PETRI_TRANSITIONS=41} [2023-01-27 19:05:57,274 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -3 predicate places. [2023-01-27 19:05:57,274 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 41 transitions, 86 flow [2023-01-27 19:05:57,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 734.5) internal successors, (1469), 2 states have internal predecessors, (1469), 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) [2023-01-27 19:05:57,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:05:57,276 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:05:57,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:05:57,276 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 19:05:57,282 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:05:57,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1633786917, now seen corresponding path program 1 times [2023-01-27 19:05:57,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:05:57,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2641310] [2023-01-27 19:05:57,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:05:57,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:05:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:05:57,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:05:57,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:05:57,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2641310] [2023-01-27 19:05:57,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2641310] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:05:57,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:05:57,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 19:05:57,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106705782] [2023-01-27 19:05:57,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:05:57,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 19:05:57,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:05:57,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 19:05:57,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 19:05:57,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 701 out of 1616 [2023-01-27 19:05:57,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 41 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 703.6666666666666) internal successors, (2111), 3 states have internal predecessors, (2111), 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) [2023-01-27 19:05:57,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:05:57,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 701 of 1616 [2023-01-27 19:05:57,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:05:58,731 INFO L130 PetriNetUnfolder]: 170/332 cut-off events. [2023-01-27 19:05:58,731 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-27 19:05:58,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 332 events. 170/332 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1191 event pairs, 69 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 683. Up to 190 conditions per place. [2023-01-27 19:05:58,733 INFO L137 encePairwiseOnDemand]: 1612/1616 looper letters, 48 selfloop transitions, 3 changer transitions 3/54 dead transitions. [2023-01-27 19:05:58,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 54 transitions, 221 flow [2023-01-27 19:05:58,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 19:05:58,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 19:05:58,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2158 transitions. [2023-01-27 19:05:58,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4451320132013201 [2023-01-27 19:05:58,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2158 transitions. [2023-01-27 19:05:58,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2158 transitions. [2023-01-27 19:05:58,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:05:58,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2158 transitions. [2023-01-27 19:05:58,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 719.3333333333334) internal successors, (2158), 3 states have internal predecessors, (2158), 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) [2023-01-27 19:05:58,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1616.0) internal successors, (6464), 4 states have internal predecessors, (6464), 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) [2023-01-27 19:05:58,748 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1616.0) internal successors, (6464), 4 states have internal predecessors, (6464), 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) [2023-01-27 19:05:58,749 INFO L175 Difference]: Start difference. First operand has 36 places, 41 transitions, 86 flow. Second operand 3 states and 2158 transitions. [2023-01-27 19:05:58,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 54 transitions, 221 flow [2023-01-27 19:05:58,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 54 transitions, 221 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-27 19:05:58,750 INFO L231 Difference]: Finished difference. Result has 40 places, 43 transitions, 108 flow [2023-01-27 19:05:58,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1616, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=40, PETRI_TRANSITIONS=43} [2023-01-27 19:05:58,751 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-01-27 19:05:58,751 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 43 transitions, 108 flow [2023-01-27 19:05:58,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 703.6666666666666) internal successors, (2111), 3 states have internal predecessors, (2111), 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) [2023-01-27 19:05:58,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:05:58,752 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:05:58,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 19:05:58,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 19:05:58,753 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:05:58,753 INFO L85 PathProgramCache]: Analyzing trace with hash 375739505, now seen corresponding path program 1 times [2023-01-27 19:05:58,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:05:58,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010134017] [2023-01-27 19:05:58,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:05:58,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:05:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:05:59,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:05:59,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:05:59,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010134017] [2023-01-27 19:05:59,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010134017] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:05:59,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:05:59,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 19:05:59,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651518940] [2023-01-27 19:05:59,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:05:59,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 19:05:59,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:05:59,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 19:05:59,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 19:05:59,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 715 out of 1616 [2023-01-27 19:05:59,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 43 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 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) [2023-01-27 19:05:59,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:05:59,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 715 of 1616 [2023-01-27 19:05:59,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:05:59,681 INFO L130 PetriNetUnfolder]: 170/333 cut-off events. [2023-01-27 19:05:59,681 INFO L131 PetriNetUnfolder]: For 91/91 co-relation queries the response was YES. [2023-01-27 19:05:59,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 333 events. 170/333 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1141 event pairs, 152 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 787. Up to 333 conditions per place. [2023-01-27 19:05:59,683 INFO L137 encePairwiseOnDemand]: 1612/1616 looper letters, 42 selfloop transitions, 2 changer transitions 0/44 dead transitions. [2023-01-27 19:05:59,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 44 transitions, 198 flow [2023-01-27 19:05:59,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 19:05:59,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 19:05:59,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2189 transitions. [2023-01-27 19:05:59,687 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.451526402640264 [2023-01-27 19:05:59,687 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2189 transitions. [2023-01-27 19:05:59,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2189 transitions. [2023-01-27 19:05:59,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:05:59,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2189 transitions. [2023-01-27 19:05:59,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 729.6666666666666) internal successors, (2189), 3 states have internal predecessors, (2189), 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) [2023-01-27 19:05:59,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1616.0) internal successors, (6464), 4 states have internal predecessors, (6464), 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) [2023-01-27 19:05:59,699 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1616.0) internal successors, (6464), 4 states have internal predecessors, (6464), 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) [2023-01-27 19:05:59,699 INFO L175 Difference]: Start difference. First operand has 40 places, 43 transitions, 108 flow. Second operand 3 states and 2189 transitions. [2023-01-27 19:05:59,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 44 transitions, 198 flow [2023-01-27 19:05:59,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 44 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 19:05:59,702 INFO L231 Difference]: Finished difference. Result has 41 places, 44 transitions, 116 flow [2023-01-27 19:05:59,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1616, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=41, PETRI_TRANSITIONS=44} [2023-01-27 19:05:59,703 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2023-01-27 19:05:59,703 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 44 transitions, 116 flow [2023-01-27 19:05:59,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 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) [2023-01-27 19:05:59,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:05:59,705 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:05:59,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 19:05:59,705 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 19:05:59,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:05:59,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1338763587, now seen corresponding path program 1 times [2023-01-27 19:05:59,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:05:59,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724903570] [2023-01-27 19:05:59,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:05:59,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:06:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:06:00,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:06:00,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:06:00,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724903570] [2023-01-27 19:06:00,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724903570] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 19:06:00,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018116212] [2023-01-27 19:06:00,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:06:00,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:06:00,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:06:00,348 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) [2023-01-27 19:06:00,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-27 19:06:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:06:01,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-27 19:06:01,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 19:06:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:06:01,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 19:06:01,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:06:01,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018116212] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 19:06:01,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 19:06:01,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-01-27 19:06:01,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621382303] [2023-01-27 19:06:01,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 19:06:01,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 19:06:01,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:06:01,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 19:06:01,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-01-27 19:06:01,737 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 715 out of 1616 [2023-01-27 19:06:01,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 44 transitions, 116 flow. Second operand has 7 states, 7 states have (on average 717.2857142857143) internal successors, (5021), 7 states have internal predecessors, (5021), 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) [2023-01-27 19:06:01,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:06:01,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 715 of 1616 [2023-01-27 19:06:01,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:06:02,221 INFO L130 PetriNetUnfolder]: 170/338 cut-off events. [2023-01-27 19:06:02,221 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-01-27 19:06:02,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 338 events. 170/338 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1167 event pairs, 152 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 772. Up to 333 conditions per place. [2023-01-27 19:06:02,222 INFO L137 encePairwiseOnDemand]: 1608/1616 looper letters, 41 selfloop transitions, 8 changer transitions 0/49 dead transitions. [2023-01-27 19:06:02,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 49 transitions, 230 flow [2023-01-27 19:06:02,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 19:06:02,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 19:06:02,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4347 transitions. [2023-01-27 19:06:02,229 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44832920792079206 [2023-01-27 19:06:02,229 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4347 transitions. [2023-01-27 19:06:02,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4347 transitions. [2023-01-27 19:06:02,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:06:02,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4347 transitions. [2023-01-27 19:06:02,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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) [2023-01-27 19:06:02,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1616.0) internal successors, (11312), 7 states have internal predecessors, (11312), 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) [2023-01-27 19:06:02,247 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1616.0) internal successors, (11312), 7 states have internal predecessors, (11312), 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) [2023-01-27 19:06:02,247 INFO L175 Difference]: Start difference. First operand has 41 places, 44 transitions, 116 flow. Second operand 6 states and 4347 transitions. [2023-01-27 19:06:02,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 49 transitions, 230 flow [2023-01-27 19:06:02,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 49 transitions, 226 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-27 19:06:02,249 INFO L231 Difference]: Finished difference. Result has 48 places, 49 transitions, 178 flow [2023-01-27 19:06:02,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1616, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=178, PETRI_PLACES=48, PETRI_TRANSITIONS=49} [2023-01-27 19:06:02,249 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2023-01-27 19:06:02,249 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 49 transitions, 178 flow [2023-01-27 19:06:02,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 717.2857142857143) internal successors, (5021), 7 states have internal predecessors, (5021), 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) [2023-01-27 19:06:02,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:06:02,251 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:06:02,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-27 19:06:02,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:06:02,461 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 19:06:02,462 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:06:02,462 INFO L85 PathProgramCache]: Analyzing trace with hash -2050164495, now seen corresponding path program 2 times [2023-01-27 19:06:02,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:06:02,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738490810] [2023-01-27 19:06:02,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:06:02,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:06:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:06:03,081 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:06:03,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:06:03,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738490810] [2023-01-27 19:06:03,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738490810] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 19:06:03,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134003780] [2023-01-27 19:06:03,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 19:06:03,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:06:03,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:06:03,082 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) [2023-01-27 19:06:03,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-27 19:06:03,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 19:06:03,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 19:06:03,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 22 conjunts are in the unsatisfiable core [2023-01-27 19:06:03,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 19:06:04,128 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-27 19:06:04,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 53 [2023-01-27 19:06:04,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-27 19:06:04,247 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 [2023-01-27 19:06:04,267 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-01-27 19:06:04,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 19:06:04,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134003780] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:06:04,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 19:06:04,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-01-27 19:06:04,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501199570] [2023-01-27 19:06:04,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:06:04,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 19:06:04,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:06:04,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 19:06:04,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-01-27 19:06:04,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 679 out of 1616 [2023-01-27 19:06:04,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 49 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 681.75) internal successors, (2727), 4 states have internal predecessors, (2727), 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) [2023-01-27 19:06:04,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:06:04,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 679 of 1616 [2023-01-27 19:06:04,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:06:04,812 INFO L130 PetriNetUnfolder]: 178/363 cut-off events. [2023-01-27 19:06:04,812 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2023-01-27 19:06:04,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 860 conditions, 363 events. 178/363 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1335 event pairs, 89 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 851. Up to 153 conditions per place. [2023-01-27 19:06:04,813 INFO L137 encePairwiseOnDemand]: 1611/1616 looper letters, 53 selfloop transitions, 5 changer transitions 7/65 dead transitions. [2023-01-27 19:06:04,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 65 transitions, 351 flow [2023-01-27 19:06:04,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 19:06:04,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 19:06:04,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2775 transitions. [2023-01-27 19:06:04,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42930074257425743 [2023-01-27 19:06:04,838 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2775 transitions. [2023-01-27 19:06:04,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2775 transitions. [2023-01-27 19:06:04,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:06:04,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2775 transitions. [2023-01-27 19:06:04,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 693.75) internal successors, (2775), 4 states have internal predecessors, (2775), 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) [2023-01-27 19:06:04,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1616.0) internal successors, (8080), 5 states have internal predecessors, (8080), 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) [2023-01-27 19:06:04,851 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1616.0) internal successors, (8080), 5 states have internal predecessors, (8080), 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) [2023-01-27 19:06:04,851 INFO L175 Difference]: Start difference. First operand has 48 places, 49 transitions, 178 flow. Second operand 4 states and 2775 transitions. [2023-01-27 19:06:04,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 65 transitions, 351 flow [2023-01-27 19:06:04,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 65 transitions, 341 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-01-27 19:06:04,853 INFO L231 Difference]: Finished difference. Result has 51 places, 50 transitions, 190 flow [2023-01-27 19:06:04,853 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1616, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=51, PETRI_TRANSITIONS=50} [2023-01-27 19:06:04,853 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 12 predicate places. [2023-01-27 19:06:04,853 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 50 transitions, 190 flow [2023-01-27 19:06:04,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 681.75) internal successors, (2727), 4 states have internal predecessors, (2727), 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) [2023-01-27 19:06:04,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:06:04,854 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:06:04,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-27 19:06:05,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:06:05,065 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 19:06:05,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:06:05,065 INFO L85 PathProgramCache]: Analyzing trace with hash 869410682, now seen corresponding path program 1 times [2023-01-27 19:06:05,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:06:05,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815180046] [2023-01-27 19:06:05,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:06:05,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:06:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:06:05,883 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:06:05,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:06:05,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815180046] [2023-01-27 19:06:05,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815180046] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 19:06:05,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857041023] [2023-01-27 19:06:05,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:06:05,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:06:05,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:06:05,885 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) [2023-01-27 19:06:05,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-27 19:06:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:06:06,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 1176 conjuncts, 15 conjunts are in the unsatisfiable core [2023-01-27 19:06:06,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 19:06:06,934 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:06:06,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 19:06:07,118 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:06:07,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857041023] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 19:06:07,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 19:06:07,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-01-27 19:06:07,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616701490] [2023-01-27 19:06:07,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 19:06:07,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-27 19:06:07,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:06:07,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-27 19:06:07,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2023-01-27 19:06:07,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 711 out of 1616 [2023-01-27 19:06:07,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 50 transitions, 190 flow. Second operand has 17 states, 17 states have (on average 712.5882352941177) internal successors, (12114), 17 states have internal predecessors, (12114), 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) [2023-01-27 19:06:07,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:06:07,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 711 of 1616 [2023-01-27 19:06:07,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:06:09,069 INFO L130 PetriNetUnfolder]: 166/348 cut-off events. [2023-01-27 19:06:09,069 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2023-01-27 19:06:09,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 348 events. 166/348 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1236 event pairs, 148 based on Foata normal form. 9/350 useless extension candidates. Maximal degree in co-relation 902. Up to 334 conditions per place. [2023-01-27 19:06:09,071 INFO L137 encePairwiseOnDemand]: 1608/1616 looper letters, 42 selfloop transitions, 17 changer transitions 0/59 dead transitions. [2023-01-27 19:06:09,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 59 transitions, 356 flow [2023-01-27 19:06:09,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-27 19:06:09,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-27 19:06:09,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8606 transitions. [2023-01-27 19:06:09,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44379125412541254 [2023-01-27 19:06:09,084 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 8606 transitions. [2023-01-27 19:06:09,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 8606 transitions. [2023-01-27 19:06:09,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:06:09,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 8606 transitions. [2023-01-27 19:06:09,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 717.1666666666666) internal successors, (8606), 12 states have internal predecessors, (8606), 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) [2023-01-27 19:06:09,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1616.0) internal successors, (21008), 13 states have internal predecessors, (21008), 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) [2023-01-27 19:06:09,119 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1616.0) internal successors, (21008), 13 states have internal predecessors, (21008), 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) [2023-01-27 19:06:09,119 INFO L175 Difference]: Start difference. First operand has 51 places, 50 transitions, 190 flow. Second operand 12 states and 8606 transitions. [2023-01-27 19:06:09,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 59 transitions, 356 flow [2023-01-27 19:06:09,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 59 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 19:06:09,121 INFO L231 Difference]: Finished difference. Result has 66 places, 59 transitions, 328 flow [2023-01-27 19:06:09,121 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1616, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=328, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2023-01-27 19:06:09,122 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 27 predicate places. [2023-01-27 19:06:09,122 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 328 flow [2023-01-27 19:06:09,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 712.5882352941177) internal successors, (12114), 17 states have internal predecessors, (12114), 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) [2023-01-27 19:06:09,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:06:09,124 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:06:09,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-27 19:06:09,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:06:09,334 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 19:06:09,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:06:09,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1641300154, now seen corresponding path program 2 times [2023-01-27 19:06:09,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:06:09,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3069535] [2023-01-27 19:06:09,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:06:09,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:06:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:06:10,640 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:06:10,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:06:10,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3069535] [2023-01-27 19:06:10,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3069535] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 19:06:10,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958608644] [2023-01-27 19:06:10,641 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 19:06:10,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:06:10,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:06:10,645 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) [2023-01-27 19:06:10,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-27 19:06:11,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 19:06:11,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 19:06:11,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 123 conjunts are in the unsatisfiable core [2023-01-27 19:06:11,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 19:06:11,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:11,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 19:06:16,939 WARN L222 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 1048 DAG size of output: 277 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-27 19:06:16,946 INFO L321 Elim1Store]: treesize reduction 8778, result has 6.9 percent of original size [2023-01-27 19:06:16,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 30 case distinctions, treesize of input 153 treesize of output 731 Received shutdown request... [2023-01-27 19:10:36,145 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 19:10:36,148 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-01-27 19:10:36,157 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-01-27 19:10:36,192 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 19:10:36,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:10:36,349 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-40-6-8-3-8-2-8-3-8-2-8-1 context. [2023-01-27 19:10:36,350 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-01-27 19:10:36,350 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-01-27 19:10:36,350 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-01-27 19:10:36,350 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-01-27 19:10:36,350 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-01-27 19:10:36,351 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-01-27 19:10:36,351 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-01-27 19:10:36,354 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:10:36,354 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:10:36,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:10:36 BasicIcfg [2023-01-27 19:10:36,356 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:10:36,356 INFO L158 Benchmark]: Toolchain (without parser) took 842892.60ms. Allocated memory was 308.3MB in the beginning and 943.7MB in the end (delta: 635.4MB). Free memory was 256.2MB in the beginning and 734.5MB in the end (delta: -478.3MB). Peak memory consumption was 632.7MB. Max. memory is 16.0GB. [2023-01-27 19:10:36,356 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 213.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:10:36,357 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3105.63ms. Allocated memory was 308.3MB in the beginning and 377.5MB in the end (delta: 69.2MB). Free memory was 256.2MB in the beginning and 264.1MB in the end (delta: -7.9MB). Peak memory consumption was 102.1MB. Max. memory is 16.0GB. [2023-01-27 19:10:36,357 INFO L158 Benchmark]: Boogie Procedure Inliner took 136.60ms. Allocated memory is still 377.5MB. Free memory was 264.1MB in the beginning and 252.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-27 19:10:36,357 INFO L158 Benchmark]: Boogie Preprocessor took 60.29ms. Allocated memory is still 377.5MB. Free memory was 252.6MB in the beginning and 246.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-01-27 19:10:36,357 INFO L158 Benchmark]: RCFGBuilder took 1026.73ms. Allocated memory is still 377.5MB. Free memory was 246.3MB in the beginning and 274.5MB in the end (delta: -28.2MB). Peak memory consumption was 28.4MB. Max. memory is 16.0GB. [2023-01-27 19:10:36,358 INFO L158 Benchmark]: TraceAbstraction took 838558.89ms. Allocated memory was 377.5MB in the beginning and 943.7MB in the end (delta: 566.2MB). Free memory was 273.4MB in the beginning and 734.5MB in the end (delta: -461.1MB). Peak memory consumption was 578.3MB. Max. memory is 16.0GB. [2023-01-27 19:10:36,359 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 213.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 3105.63ms. Allocated memory was 308.3MB in the beginning and 377.5MB in the end (delta: 69.2MB). Free memory was 256.2MB in the beginning and 264.1MB in the end (delta: -7.9MB). Peak memory consumption was 102.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 136.60ms. Allocated memory is still 377.5MB. Free memory was 264.1MB in the beginning and 252.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Preprocessor took 60.29ms. Allocated memory is still 377.5MB. Free memory was 252.6MB in the beginning and 246.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * RCFGBuilder took 1026.73ms. Allocated memory is still 377.5MB. Free memory was 246.3MB in the beginning and 274.5MB in the end (delta: -28.2MB). Peak memory consumption was 28.4MB. Max. memory is 16.0GB. * TraceAbstraction took 838558.89ms. Allocated memory was 377.5MB in the beginning and 943.7MB in the end (delta: 566.2MB). Free memory was 273.4MB in the beginning and 734.5MB in the end (delta: -461.1MB). Peak memory consumption was 578.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 558.4s, 714 PlacesBefore, 39 PlacesAfterwards, 761 TransitionsBefore, 56 TransitionsAfterwards, 13812 CoEnabledTransitionPairs, 12 FixpointIterations, 567 TrivialSequentialCompositions, 148 ConcurrentSequentialCompositions, 77 TrivialYvCompositions, 23 ConcurrentYvCompositions, 30 ChoiceCompositions, 845 TotalNumberOfCompositions, 13470 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10562, independent: 10372, independent conditional: 0, independent unconditional: 10372, dependent: 190, dependent conditional: 0, dependent unconditional: 190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7363, independent: 7324, independent conditional: 0, independent unconditional: 7324, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10562, independent: 3048, independent conditional: 0, independent unconditional: 3048, dependent: 151, dependent conditional: 0, dependent unconditional: 151, unknown: 7363, unknown conditional: 0, unknown unconditional: 7363] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-40-6-8-3-8-2-8-3-8-2-8-1 context. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-40-6-8-3-8-2-8-3-8-2-8-1 context. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-40-6-8-3-8-2-8-3-8-2-8-1 context. - TimeoutResultAtElement [Line: 7069]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-40-6-8-3-8-2-8-3-8-2-8-1 context. - TimeoutResultAtElement [Line: 7068]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-40-6-8-3-8-2-8-3-8-2-8-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 866 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: 838.5s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 558.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 921 IncrementalHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 0 mSDtfsCounter, 921 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=328occurred in iteration=6, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 101 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 461 SizeOfPredicates, 50 NumberOfNonLiveVariables, 3377 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 10/53 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown