/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_change_pc8736x_gpio_get.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:37:39,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:37:39,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:37:39,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:37:39,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:37:39,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:37:39,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:37:39,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:37:39,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:37:39,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:37:39,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:37:39,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:37:39,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:37:39,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:37:39,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:37:39,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:37:39,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:37:39,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:37:39,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:37:39,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:37:39,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:37:39,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:37:39,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:37:39,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:37:39,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 18:37:39,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 18:37:39,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 18:37:39,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 18:37:39,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 18:37:39,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 18:37:39,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 18:37:39,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 18:37:39,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 18:37:39,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 18:37:39,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 18:37:39,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 18:37:39,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 18:37:39,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 18:37:39,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:37:39,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:37:39,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:37:39,453 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 18:37:39,466 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:37:39,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:37:39,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:37:39,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:37:39,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:37:39,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:37:39,467 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:37:39,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:37:39,468 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:37:39,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:37:39,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:37:39,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:37:39,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:37:39,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:37:39,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:37:39,468 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:37:39,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:37:39,469 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:37:39,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:37:39,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:37:39,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:37:39,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:37:39,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:37:39,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:37:39,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:37:39,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:37:39,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:37:39,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:37:39,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:37:39,470 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:37:39,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:37:39,470 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:37:39,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:37:39,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:37:39,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:37:39,654 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:37:39,655 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:37:39,655 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i [2023-01-27 18:37:40,681 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:37:40,985 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:37:40,985 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i [2023-01-27 18:37:41,014 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed54e0dd4/e7e86e79ccff435595f5f1b00a528da9/FLAG282754529 [2023-01-27 18:37:41,023 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed54e0dd4/e7e86e79ccff435595f5f1b00a528da9 [2023-01-27 18:37:41,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:37:41,025 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:37:41,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:37:41,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:37:41,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:37:41,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:37:41" (1/1) ... [2023-01-27 18:37:41,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6780070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:41, skipping insertion in model container [2023-01-27 18:37:41,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:37:41" (1/1) ... [2023-01-27 18:37:41,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:37:41,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:37:41,377 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i[5469,5482] [2023-01-27 18:37:43,808 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:37:44,178 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:37:44,179 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:37:44,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:37:44,224 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:37:44,233 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i[5469,5482] [2023-01-27 18:37:44,360 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:37:44,387 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:37:44,387 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:37:44,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:37:44,694 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:37:44,694 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:37:44,694 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:37:44,694 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:37:44,695 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:37:44,695 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:37:44,695 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:37:44,699 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:37:44,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:44 WrapperNode [2023-01-27 18:37:44,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:37:44,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:37:44,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:37:44,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:37:44,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:44" (1/1) ... [2023-01-27 18:37:44,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:44" (1/1) ... [2023-01-27 18:37:44,849 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 54, statements flattened = 726 [2023-01-27 18:37:44,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:37:44,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:37:44,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:37:44,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:37:44,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:44" (1/1) ... [2023-01-27 18:37:44,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:44" (1/1) ... [2023-01-27 18:37:44,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:44" (1/1) ... [2023-01-27 18:37:44,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:44" (1/1) ... [2023-01-27 18:37:44,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:44" (1/1) ... [2023-01-27 18:37:44,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:44" (1/1) ... [2023-01-27 18:37:44,881 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:44" (1/1) ... [2023-01-27 18:37:44,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:44" (1/1) ... [2023-01-27 18:37:44,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:37:44,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:37:44,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:37:44,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:37:44,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:44" (1/1) ... [2023-01-27 18:37:44,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:37:44,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:37:44,946 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 18:37:44,977 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 18:37:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 18:37:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 18:37:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:37:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-27 18:37:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-01-27 18:37:44,983 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-01-27 18:37:44,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:37:44,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:37:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-27 18:37:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_get [2023-01-27 18:37:44,984 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_get [2023-01-27 18:37:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:37:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-27 18:37:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:37:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:37:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-27 18:37:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:37:45,007 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 18:37:45,310 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:37:45,312 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:37:45,867 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:37:45,880 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:37:45,880 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2023-01-27 18:37:45,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:37:45 BoogieIcfgContainer [2023-01-27 18:37:45,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:37:45,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:37:45,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:37:45,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:37:45,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:37:41" (1/3) ... [2023-01-27 18:37:45,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20535694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:37:45, skipping insertion in model container [2023-01-27 18:37:45,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:44" (2/3) ... [2023-01-27 18:37:45,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20535694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:37:45, skipping insertion in model container [2023-01-27 18:37:45,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:37:45" (3/3) ... [2023-01-27 18:37:45,892 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i [2023-01-27 18:37:45,902 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:37:45,903 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-01-27 18:37:45,903 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:37:45,997 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 18:37:46,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 744 places, 792 transitions, 1600 flow [2023-01-27 18:37:46,229 INFO L130 PetriNetUnfolder]: 55/790 cut-off events. [2023-01-27 18:37:46,229 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:37:46,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 790 events. 55/790 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1086 event pairs, 0 based on Foata normal form. 0/732 useless extension candidates. Maximal degree in co-relation 633. Up to 9 conditions per place. [2023-01-27 18:37:46,237 INFO L82 GeneralOperation]: Start removeDead. Operand has 744 places, 792 transitions, 1600 flow [2023-01-27 18:37:46,246 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 734 places, 782 transitions, 1573 flow [2023-01-27 18:37:46,248 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:37:46,257 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 734 places, 782 transitions, 1573 flow [2023-01-27 18:37:46,260 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 734 places, 782 transitions, 1573 flow [2023-01-27 18:37:46,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 734 places, 782 transitions, 1573 flow [2023-01-27 18:37:46,377 INFO L130 PetriNetUnfolder]: 55/782 cut-off events. [2023-01-27 18:37:46,377 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 18:37:46,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 790 conditions, 782 events. 55/782 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1022 event pairs, 0 based on Foata normal form. 0/724 useless extension candidates. Maximal degree in co-relation 633. Up to 9 conditions per place. [2023-01-27 18:37:46,386 INFO L119 LiptonReduction]: Number of co-enabled transitions 13356 [2023-01-27 18:38:51,516 WARN L222 SmtUtils]: Spent 13.89s on a formula simplification that was a NOOP. DAG size: 366 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:38:59,207 WARN L222 SmtUtils]: Spent 7.67s on a formula simplification that was a NOOP. DAG size: 324 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:39:14,031 WARN L222 SmtUtils]: Spent 14.82s on a formula simplification that was a NOOP. DAG size: 369 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:39:21,133 WARN L222 SmtUtils]: Spent 7.10s on a formula simplification that was a NOOP. DAG size: 327 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:40:22,823 WARN L222 SmtUtils]: Spent 1.01m on a formula simplification. DAG size of input: 583 DAG size of output: 581 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:40:54,179 WARN L222 SmtUtils]: Spent 31.35s 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 18:42:00,877 WARN L222 SmtUtils]: Spent 1.11m on a formula simplification. DAG size of input: 586 DAG size of output: 584 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:42:33,525 WARN L222 SmtUtils]: Spent 32.64s 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 18:42:50,902 INFO L134 LiptonReduction]: Checked pairs total: 10608 [2023-01-27 18:42:50,902 INFO L136 LiptonReduction]: Total number of compositions: 869 [2023-01-27 18:42:50,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:42:50,914 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;@556bc36d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:42:50,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-01-27 18:42:50,919 INFO L130 PetriNetUnfolder]: 2/6 cut-off events. [2023-01-27 18:42:50,919 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:42:50,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:42:50,920 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-27 18:42:50,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 18:42:50,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:42:50,923 INFO L85 PathProgramCache]: Analyzing trace with hash 2907106, now seen corresponding path program 1 times [2023-01-27 18:42:50,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:42:50,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966498330] [2023-01-27 18:42:50,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:42:50,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:42:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:42:51,307 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 18:42:51,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:42:51,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966498330] [2023-01-27 18:42:51,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966498330] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:42:51,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:42:51,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 18:42:51,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769315423] [2023-01-27 18:42:51,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:42:51,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-27 18:42:51,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:42:51,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-27 18:42:51,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-27 18:42:51,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 754 out of 1661 [2023-01-27 18:42:51,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 49 transitions, 107 flow. Second operand has 2 states, 2 states have (on average 755.5) internal successors, (1511), 2 states have internal predecessors, (1511), 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 18:42:51,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:42:51,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 754 of 1661 [2023-01-27 18:42:51,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:42:51,537 INFO L130 PetriNetUnfolder]: 61/127 cut-off events. [2023-01-27 18:42:51,537 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2023-01-27 18:42:51,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 127 events. 61/127 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 325 event pairs, 51 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 170. Up to 128 conditions per place. [2023-01-27 18:42:51,539 INFO L137 encePairwiseOnDemand]: 1647/1661 looper letters, 34 selfloop transitions, 0 changer transitions 1/35 dead transitions. [2023-01-27 18:42:51,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 35 transitions, 149 flow [2023-01-27 18:42:51,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-27 18:42:51,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-27 18:42:51,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1557 transitions. [2023-01-27 18:42:51,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4686935580975316 [2023-01-27 18:42:51,555 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1557 transitions. [2023-01-27 18:42:51,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1557 transitions. [2023-01-27 18:42:51,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:42:51,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1557 transitions. [2023-01-27 18:42:51,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 778.5) internal successors, (1557), 2 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:42:51,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1661.0) internal successors, (4983), 3 states have internal predecessors, (4983), 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 18:42:51,574 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1661.0) internal successors, (4983), 3 states have internal predecessors, (4983), 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 18:42:51,575 INFO L175 Difference]: Start difference. First operand has 34 places, 49 transitions, 107 flow. Second operand 2 states and 1557 transitions. [2023-01-27 18:42:51,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 35 transitions, 149 flow [2023-01-27 18:42:51,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 18:42:51,580 INFO L231 Difference]: Finished difference. Result has 30 places, 34 transitions, 72 flow [2023-01-27 18:42:51,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=72, PETRI_PLACES=30, PETRI_TRANSITIONS=34} [2023-01-27 18:42:51,588 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -4 predicate places. [2023-01-27 18:42:51,588 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 34 transitions, 72 flow [2023-01-27 18:42:51,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 755.5) internal successors, (1511), 2 states have internal predecessors, (1511), 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 18:42:51,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:42:51,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:42:51,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:42:51,590 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 18:42:51,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:42:51,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1199790467, now seen corresponding path program 1 times [2023-01-27 18:42:51,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:42:51,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754568117] [2023-01-27 18:42:51,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:42:51,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:42:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:42:52,511 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 18:42:52,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:42:52,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754568117] [2023-01-27 18:42:52,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754568117] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:42:52,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:42:52,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:42:52,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070709222] [2023-01-27 18:42:52,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:42:52,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:42:52,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:42:52,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:42:52,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:42:52,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 736 out of 1661 [2023-01-27 18:42:52,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 34 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 739.0) internal successors, (2217), 3 states have internal predecessors, (2217), 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 18:42:52,520 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:42:52,520 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 736 of 1661 [2023-01-27 18:42:52,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:42:52,713 INFO L130 PetriNetUnfolder]: 52/111 cut-off events. [2023-01-27 18:42:52,713 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-27 18:42:52,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 111 events. 52/111 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 264 event pairs, 42 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 229. Up to 111 conditions per place. [2023-01-27 18:42:52,714 INFO L137 encePairwiseOnDemand]: 1657/1661 looper letters, 33 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2023-01-27 18:42:52,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 35 transitions, 144 flow [2023-01-27 18:42:52,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:42:52,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:42:52,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2245 transitions. [2023-01-27 18:42:52,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45053180814770216 [2023-01-27 18:42:52,719 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2245 transitions. [2023-01-27 18:42:52,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2245 transitions. [2023-01-27 18:42:52,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:42:52,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2245 transitions. [2023-01-27 18:42:52,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 748.3333333333334) internal successors, (2245), 3 states have internal predecessors, (2245), 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 18:42:52,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 18:42:52,730 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 18:42:52,730 INFO L175 Difference]: Start difference. First operand has 30 places, 34 transitions, 72 flow. Second operand 3 states and 2245 transitions. [2023-01-27 18:42:52,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 35 transitions, 144 flow [2023-01-27 18:42:52,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-27 18:42:52,732 INFO L231 Difference]: Finished difference. Result has 32 places, 35 transitions, 86 flow [2023-01-27 18:42:52,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=32, PETRI_TRANSITIONS=35} [2023-01-27 18:42:52,732 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2023-01-27 18:42:52,732 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 35 transitions, 86 flow [2023-01-27 18:42:52,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 739.0) internal successors, (2217), 3 states have internal predecessors, (2217), 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 18:42:52,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:42:52,734 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:42:52,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:42:52,735 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 18:42:52,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:42:52,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1010626989, now seen corresponding path program 1 times [2023-01-27 18:42:52,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:42:52,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986198874] [2023-01-27 18:42:52,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:42:52,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:42:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:42:53,412 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 18:42:53,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:42:53,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986198874] [2023-01-27 18:42:53,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986198874] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:42:53,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542805931] [2023-01-27 18:42:53,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:42:53,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:42:53,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:42:53,449 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 18:42:53,480 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 18:42:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:42:54,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-27 18:42:54,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:42:54,105 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 18:42:54,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:42:54,368 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 18:42:54,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542805931] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:42:54,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:42:54,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-01-27 18:42:54,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737878270] [2023-01-27 18:42:54,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:42:54,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-27 18:42:54,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:42:54,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-27 18:42:54,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:42:54,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 736 out of 1661 [2023-01-27 18:42:54,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 35 transitions, 86 flow. Second operand has 8 states, 8 states have (on average 738.0) internal successors, (5904), 8 states have internal predecessors, (5904), 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 18:42:54,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:42:54,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 736 of 1661 [2023-01-27 18:42:54,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:42:54,787 INFO L130 PetriNetUnfolder]: 52/116 cut-off events. [2023-01-27 18:42:54,788 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-27 18:42:54,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 116 events. 52/116 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 278 event pairs, 42 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 248. Up to 106 conditions per place. [2023-01-27 18:42:54,788 INFO L137 encePairwiseOnDemand]: 1653/1661 looper letters, 28 selfloop transitions, 12 changer transitions 0/40 dead transitions. [2023-01-27 18:42:54,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 40 transitions, 182 flow [2023-01-27 18:42:54,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-27 18:42:54,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-27 18:42:54,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 5202 transitions. [2023-01-27 18:42:54,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44740689773802356 [2023-01-27 18:42:54,796 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 5202 transitions. [2023-01-27 18:42:54,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 5202 transitions. [2023-01-27 18:42:54,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:42:54,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 5202 transitions. [2023-01-27 18:42:54,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 743.1428571428571) internal successors, (5202), 7 states have internal predecessors, (5202), 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 18:42:54,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1661.0) internal successors, (13288), 8 states have internal predecessors, (13288), 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 18:42:54,820 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1661.0) internal successors, (13288), 8 states have internal predecessors, (13288), 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 18:42:54,820 INFO L175 Difference]: Start difference. First operand has 32 places, 35 transitions, 86 flow. Second operand 7 states and 5202 transitions. [2023-01-27 18:42:54,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 40 transitions, 182 flow [2023-01-27 18:42:54,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 40 transitions, 178 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-27 18:42:54,821 INFO L231 Difference]: Finished difference. Result has 37 places, 40 transitions, 126 flow [2023-01-27 18:42:54,821 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=126, PETRI_PLACES=37, PETRI_TRANSITIONS=40} [2023-01-27 18:42:54,821 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-01-27 18:42:54,822 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 40 transitions, 126 flow [2023-01-27 18:42:54,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 738.0) internal successors, (5904), 8 states have internal predecessors, (5904), 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 18:42:54,824 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:42:54,824 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:42:54,835 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 18:42:55,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:42:55,033 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 18:42:55,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:42:55,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1966937091, now seen corresponding path program 2 times [2023-01-27 18:42:55,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:42:55,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910345564] [2023-01-27 18:42:55,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:42:55,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:42:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:42:55,868 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 18:42:55,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:42:55,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910345564] [2023-01-27 18:42:55,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910345564] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:42:55,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248507201] [2023-01-27 18:42:55,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:42:55,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:42:55,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:42:55,885 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 18:42:55,913 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 18:42:56,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 18:42:56,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:42:56,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 21 conjunts are in the unsatisfiable core [2023-01-27 18:42:56,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:42:57,009 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 18:42:57,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:42:57,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248507201] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:42:57,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:42:57,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2023-01-27 18:42:57,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917154108] [2023-01-27 18:42:57,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:42:57,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:42:57,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:42:57,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:42:57,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:42:57,015 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 743 out of 1661 [2023-01-27 18:42:57,017 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 40 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 746.3333333333334) internal successors, (2239), 3 states have internal predecessors, (2239), 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 18:42:57,017 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:42:57,017 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 743 of 1661 [2023-01-27 18:42:57,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:42:57,368 INFO L130 PetriNetUnfolder]: 43/99 cut-off events. [2023-01-27 18:42:57,369 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 18:42:57,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 99 events. 43/99 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 234 event pairs, 15 based on Foata normal form. 8/98 useless extension candidates. Maximal degree in co-relation 226. Up to 66 conditions per place. [2023-01-27 18:42:57,369 INFO L137 encePairwiseOnDemand]: 1657/1661 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2023-01-27 18:42:57,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 223 flow [2023-01-27 18:42:57,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:42:57,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:42:57,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2268 transitions. [2023-01-27 18:42:57,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4551475015051174 [2023-01-27 18:42:57,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2268 transitions. [2023-01-27 18:42:57,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2268 transitions. [2023-01-27 18:42:57,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:42:57,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2268 transitions. [2023-01-27 18:42:57,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 756.0) internal successors, (2268), 3 states have internal predecessors, (2268), 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 18:42:57,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 18:42:57,382 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 18:42:57,382 INFO L175 Difference]: Start difference. First operand has 37 places, 40 transitions, 126 flow. Second operand 3 states and 2268 transitions. [2023-01-27 18:42:57,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 223 flow [2023-01-27 18:42:57,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 44 transitions, 200 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-01-27 18:42:57,383 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-01-27 18:42:57,383 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-01-27 18:42:57,384 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2023-01-27 18:42:57,384 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-01-27 18:42:57,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 746.3333333333334) internal successors, (2239), 3 states have internal predecessors, (2239), 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 18:42:57,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-01-27 18:42:57,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2023-01-27 18:42:57,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-01-27 18:42:57,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-01-27 18:42:57,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-01-27 18:42:57,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-01-27 18:42:57,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-01-27 18:42:57,410 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 18:42:57,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-01-27 18:42:57,597 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-01-27 18:42:57,600 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 18:42:57,600 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 18:42:57,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 06:42:57 BasicIcfg [2023-01-27 18:42:57,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 18:42:57,602 INFO L158 Benchmark]: Toolchain (without parser) took 316576.83ms. Allocated memory was 404.8MB in the beginning and 885.0MB in the end (delta: 480.2MB). Free memory was 362.4MB in the beginning and 303.4MB in the end (delta: 59.1MB). Peak memory consumption was 541.8MB. Max. memory is 16.0GB. [2023-01-27 18:42:57,602 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 213.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:42:57,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3673.75ms. Allocated memory was 404.8MB in the beginning and 570.4MB in the end (delta: 165.7MB). Free memory was 362.4MB in the beginning and 429.5MB in the end (delta: -67.1MB). Peak memory consumption was 108.4MB. Max. memory is 16.0GB. [2023-01-27 18:42:57,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 148.83ms. Allocated memory is still 570.4MB. Free memory was 429.5MB in the beginning and 418.0MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 18:42:57,603 INFO L158 Benchmark]: Boogie Preprocessor took 52.64ms. Allocated memory is still 570.4MB. Free memory was 418.0MB in the beginning and 411.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-01-27 18:42:57,603 INFO L158 Benchmark]: RCFGBuilder took 980.06ms. Allocated memory is still 570.4MB. Free memory was 411.7MB in the beginning and 446.5MB in the end (delta: -34.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-27 18:42:57,603 INFO L158 Benchmark]: TraceAbstraction took 311714.95ms. Allocated memory was 570.4MB in the beginning and 885.0MB in the end (delta: 314.6MB). Free memory was 445.5MB in the beginning and 303.4MB in the end (delta: 142.1MB). Peak memory consumption was 456.7MB. Max. memory is 16.0GB. [2023-01-27 18:42:57,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 213.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 3673.75ms. Allocated memory was 404.8MB in the beginning and 570.4MB in the end (delta: 165.7MB). Free memory was 362.4MB in the beginning and 429.5MB in the end (delta: -67.1MB). Peak memory consumption was 108.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 148.83ms. Allocated memory is still 570.4MB. Free memory was 429.5MB in the beginning and 418.0MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Preprocessor took 52.64ms. Allocated memory is still 570.4MB. Free memory was 418.0MB in the beginning and 411.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * RCFGBuilder took 980.06ms. Allocated memory is still 570.4MB. Free memory was 411.7MB in the beginning and 446.5MB in the end (delta: -34.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 311714.95ms. Allocated memory was 570.4MB in the beginning and 885.0MB in the end (delta: 314.6MB). Free memory was 445.5MB in the beginning and 303.4MB in the end (delta: 142.1MB). Peak memory consumption was 456.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 304.6s, 734 PlacesBefore, 34 PlacesAfterwards, 782 TransitionsBefore, 49 TransitionsAfterwards, 13356 CoEnabledTransitionPairs, 10 FixpointIterations, 558 TrivialSequentialCompositions, 168 ConcurrentSequentialCompositions, 79 TrivialYvCompositions, 31 ConcurrentYvCompositions, 33 ChoiceCompositions, 869 TotalNumberOfCompositions, 10608 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10243, independent: 10214, independent conditional: 0, independent unconditional: 10214, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7019, independent: 7005, independent conditional: 0, independent unconditional: 7005, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10243, independent: 3209, independent conditional: 0, independent unconditional: 3209, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 7019, unknown conditional: 0, unknown unconditional: 7019] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 906 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: 311.6s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 304.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 0 mSDtfsCounter, 308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=3, InterpolantAutomatonStates: 15, 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: 0.1s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 58 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 61 ConstructedInterpolants, 1 QuantifiedInterpolants, 274 SizeOfPredicates, 42 NumberOfNonLiveVariables, 2277 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 10/23 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-27 18:42:57,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...