/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_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:38:00,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:38:00,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:38:00,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:38:00,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:38:00,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:38:00,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:38:00,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:38:00,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:38:00,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:38:00,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:38:00,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:38:00,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:38:00,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:38:00,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:38:00,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:38:00,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:38:00,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:38:00,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:38:00,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:38:00,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:38:00,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:38:00,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:38:00,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:38:00,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 18:38:00,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 18:38:00,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 18:38:00,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 18:38:00,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 18:38:00,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 18:38:00,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 18:38:00,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 18:38:00,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 18:38:00,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 18:38:00,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 18:38:00,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 18:38:00,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 18:38:00,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 18:38:00,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:38:00,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:38:00,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:38:00,478 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 18:38:00,510 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:38:00,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:38:00,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:38:00,526 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:38:00,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:38:00,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:38:00,527 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:38:00,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:38:00,527 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:38:00,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:38:00,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:38:00,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:38:00,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:38:00,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:38:00,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:38:00,528 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:38:00,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:38:00,528 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:38:00,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:38:00,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:38:00,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:38:00,528 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:38:00,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:38:00,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:38:00,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:38:00,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:38:00,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:38:00,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:38:00,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:38:00,529 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:38:00,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:38:00,529 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:38:00,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:38:00,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:38:00,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:38:00,855 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:38:00,872 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:38:00,874 INFO L432 ainManager$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_set.i [2023-01-27 18:38:02,415 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:38:03,019 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:38:03,020 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2023-01-27 18:38:03,048 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3e78f8f/230c3362e05d4495bef24fa60e94271b/FLAG349b2da80 [2023-01-27 18:38:03,060 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3e78f8f/230c3362e05d4495bef24fa60e94271b [2023-01-27 18:38:03,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:38:03,063 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:38:03,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:38:03,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:38:03,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:38:03,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:38:03" (1/1) ... [2023-01-27 18:38:03,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdabf7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:03, skipping insertion in model container [2023-01-27 18:38:03,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:38:03" (1/1) ... [2023-01-27 18:38:03,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:38:03,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:38:03,711 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_set.i[5469,5482] [2023-01-27 18:38:08,094 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:38:08,850 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:38:08,850 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:38:08,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:38:09,022 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:38:09,040 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_set.i[5469,5482] [2023-01-27 18:38:09,212 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:38:09,289 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:38:09,289 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:38:09,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:38:09,739 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:38:09,740 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:38:09,740 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:38:09,740 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:38:09,740 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:38:09,740 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:38:09,740 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:38:09,760 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:38:09,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:09 WrapperNode [2023-01-27 18:38:09,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:38:09,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:38:09,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:38:09,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:38:09,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:09" (1/1) ... [2023-01-27 18:38:09,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:09" (1/1) ... [2023-01-27 18:38:10,021 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 58, statements flattened = 791 [2023-01-27 18:38:10,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:38:10,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:38:10,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:38:10,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:38:10,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:09" (1/1) ... [2023-01-27 18:38:10,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:09" (1/1) ... [2023-01-27 18:38:10,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:09" (1/1) ... [2023-01-27 18:38:10,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:09" (1/1) ... [2023-01-27 18:38:10,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:09" (1/1) ... [2023-01-27 18:38:10,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:09" (1/1) ... [2023-01-27 18:38:10,123 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:09" (1/1) ... [2023-01-27 18:38:10,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:09" (1/1) ... [2023-01-27 18:38:10,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:38:10,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:38:10,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:38:10,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:38:10,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:09" (1/1) ... [2023-01-27 18:38:10,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:38:10,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:38:10,170 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 18:38:10,204 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 18:38:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 18:38:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 18:38:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:38:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-27 18:38:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-01-27 18:38:10,237 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-01-27 18:38:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:38:10,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:38:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-27 18:38:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:38:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-27 18:38:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:38:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:38:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-27 18:38:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-27 18:38:10,237 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-27 18:38:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:38:10,247 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 18:38:10,840 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:38:10,842 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:38:11,690 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:38:11,701 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:38:11,701 INFO L302 CfgBuilder]: Removed 31 assume(true) statements. [2023-01-27 18:38:11,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:38:11 BoogieIcfgContainer [2023-01-27 18:38:11,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:38:11,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:38:11,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:38:11,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:38:11,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:38:03" (1/3) ... [2023-01-27 18:38:11,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51419658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:38:11, skipping insertion in model container [2023-01-27 18:38:11,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:09" (2/3) ... [2023-01-27 18:38:11,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51419658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:38:11, skipping insertion in model container [2023-01-27 18:38:11,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:38:11" (3/3) ... [2023-01-27 18:38:11,709 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2023-01-27 18:38:11,721 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:38:11,721 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-01-27 18:38:11,721 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:38:12,022 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 18:38:12,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 806 places, 864 transitions, 1744 flow [2023-01-27 18:38:12,263 INFO L130 PetriNetUnfolder]: 65/862 cut-off events. [2023-01-27 18:38:12,263 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:38:12,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 871 conditions, 862 events. 65/862 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1552 event pairs, 0 based on Foata normal form. 0/793 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-27 18:38:12,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 806 places, 864 transitions, 1744 flow [2023-01-27 18:38:12,286 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 796 places, 854 transitions, 1717 flow [2023-01-27 18:38:12,289 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:38:12,299 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 796 places, 854 transitions, 1717 flow [2023-01-27 18:38:12,302 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 796 places, 854 transitions, 1717 flow [2023-01-27 18:38:12,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 796 places, 854 transitions, 1717 flow [2023-01-27 18:38:12,433 INFO L130 PetriNetUnfolder]: 65/854 cut-off events. [2023-01-27 18:38:12,434 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 18:38:12,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 854 events. 65/854 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1380 event pairs, 0 based on Foata normal form. 0/785 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-27 18:38:12,450 INFO L119 LiptonReduction]: Number of co-enabled transitions 35388 [2023-01-27 18:39:22,045 WARN L222 SmtUtils]: Spent 13.24s on a formula simplification that was a NOOP. DAG size: 372 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:39:32,681 WARN L222 SmtUtils]: Spent 10.56s on a formula simplification that was a NOOP. DAG size: 316 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:39:41,452 WARN L222 SmtUtils]: Spent 8.77s on a formula simplification that was a NOOP. DAG size: 372 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:39:48,503 WARN L222 SmtUtils]: Spent 7.04s on a formula simplification that was a NOOP. DAG size: 316 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:40:02,459 WARN L222 SmtUtils]: Spent 12.88s on a formula simplification that was a NOOP. DAG size: 518 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:40:13,989 WARN L222 SmtUtils]: Spent 11.53s on a formula simplification that was a NOOP. DAG size: 509 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:40:54,557 WARN L222 SmtUtils]: Spent 40.56s on a formula simplification that was a NOOP. DAG size: 518 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:41:22,664 WARN L222 SmtUtils]: Spent 28.10s on a formula simplification that was a NOOP. DAG size: 509 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:41:45,642 WARN L222 SmtUtils]: Spent 8.36s on a formula simplification. DAG size of input: 311 DAG size of output: 304 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:44:06,706 WARN L222 SmtUtils]: Spent 2.31m on a formula simplification. DAG size of input: 609 DAG size of output: 607 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:45:02,866 WARN L222 SmtUtils]: Spent 56.15s 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 18:48:07,218 WARN L222 SmtUtils]: Spent 3.07m on a formula simplification. DAG size of input: 615 DAG size of output: 611 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:49:18,141 WARN L222 SmtUtils]: Spent 1.18m 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 18:49:18,157 INFO L134 LiptonReduction]: Checked pairs total: 30501 [2023-01-27 18:49:18,157 INFO L136 LiptonReduction]: Total number of compositions: 939 [2023-01-27 18:49:18,179 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:49:18,188 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;@6dc54dac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:49:18,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-01-27 18:49:18,195 INFO L130 PetriNetUnfolder]: 6/12 cut-off events. [2023-01-27 18:49:18,195 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:49:18,196 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:49:18,196 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-27 18:49:18,196 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 6 more)] === [2023-01-27 18:49:18,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:49:18,221 INFO L85 PathProgramCache]: Analyzing trace with hash 3239691, now seen corresponding path program 1 times [2023-01-27 18:49:18,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:49:18,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539196038] [2023-01-27 18:49:18,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:49:18,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:49:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:49:18,970 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 18:49:18,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:49:18,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539196038] [2023-01-27 18:49:18,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539196038] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:49:18,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:49:18,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 18:49:18,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58295973] [2023-01-27 18:49:18,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:49:18,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-27 18:49:18,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:49:19,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-27 18:49:19,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-27 18:49:19,019 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 820 out of 1803 [2023-01-27 18:49:19,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 64 transitions, 137 flow. Second operand has 2 states, 2 states have (on average 821.5) internal successors, (1643), 2 states have internal predecessors, (1643), 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 18:49:19,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:49:19,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 820 of 1803 [2023-01-27 18:49:19,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:49:19,479 INFO L130 PetriNetUnfolder]: 331/601 cut-off events. [2023-01-27 18:49:19,480 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-01-27 18:49:19,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 601 events. 331/601 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2178 event pairs, 321 based on Foata normal form. 0/525 useless extension candidates. Maximal degree in co-relation 1082. Up to 602 conditions per place. [2023-01-27 18:49:19,499 INFO L137 encePairwiseOnDemand]: 1786/1803 looper letters, 47 selfloop transitions, 0 changer transitions 0/47 dead transitions. [2023-01-27 18:49:19,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 47 transitions, 197 flow [2023-01-27 18:49:19,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-27 18:49:19,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-27 18:49:19,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1704 transitions. [2023-01-27 18:49:19,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47254575707154745 [2023-01-27 18:49:19,525 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1704 transitions. [2023-01-27 18:49:19,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1704 transitions. [2023-01-27 18:49:19,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:49:19,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1704 transitions. [2023-01-27 18:49:19,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 852.0) internal successors, (1704), 2 states have internal predecessors, (1704), 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 18:49:19,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1803.0) internal successors, (5409), 3 states have internal predecessors, (5409), 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 18:49:19,567 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1803.0) internal successors, (5409), 3 states have internal predecessors, (5409), 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 18:49:19,569 INFO L175 Difference]: Start difference. First operand has 45 places, 64 transitions, 137 flow. Second operand 2 states and 1704 transitions. [2023-01-27 18:49:19,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 47 transitions, 197 flow [2023-01-27 18:49:19,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 47 transitions, 192 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 18:49:19,573 INFO L231 Difference]: Finished difference. Result has 42 places, 47 transitions, 98 flow [2023-01-27 18:49:19,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=98, PETRI_PLACES=42, PETRI_TRANSITIONS=47} [2023-01-27 18:49:19,578 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -3 predicate places. [2023-01-27 18:49:19,578 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 47 transitions, 98 flow [2023-01-27 18:49:19,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 821.5) internal successors, (1643), 2 states have internal predecessors, (1643), 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 18:49:19,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:49:19,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:49:19,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:49:19,580 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:49:19,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:49:19,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1584559176, now seen corresponding path program 1 times [2023-01-27 18:49:19,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:49:19,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714024395] [2023-01-27 18:49:19,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:49:19,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:49:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:49:20,905 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 18:49:20,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:49:20,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714024395] [2023-01-27 18:49:20,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714024395] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:49:20,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:49:20,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:49:20,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303598395] [2023-01-27 18:49:20,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:49:20,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:49:20,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:49:20,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:49:20,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:49:20,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 798 out of 1803 [2023-01-27 18:49:20,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 47 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 800.3333333333334) internal successors, (2401), 3 states have internal predecessors, (2401), 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 18:49:20,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:49:20,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 798 of 1803 [2023-01-27 18:49:20,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:49:21,443 INFO L130 PetriNetUnfolder]: 331/602 cut-off events. [2023-01-27 18:49:21,443 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-01-27 18:49:21,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1226 conditions, 602 events. 331/602 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2175 event pairs, 321 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 1223. Up to 602 conditions per place. [2023-01-27 18:49:21,446 INFO L137 encePairwiseOnDemand]: 1799/1803 looper letters, 46 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-01-27 18:49:21,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 48 transitions, 196 flow [2023-01-27 18:49:21,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:49:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:49:21,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2444 transitions. [2023-01-27 18:49:21,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4518395267147347 [2023-01-27 18:49:21,450 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2444 transitions. [2023-01-27 18:49:21,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2444 transitions. [2023-01-27 18:49:21,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:49:21,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2444 transitions. [2023-01-27 18:49:21,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 814.6666666666666) internal successors, (2444), 3 states have internal predecessors, (2444), 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 18:49:21,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1803.0) internal successors, (7212), 4 states have internal predecessors, (7212), 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 18:49:21,464 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1803.0) internal successors, (7212), 4 states have internal predecessors, (7212), 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 18:49:21,464 INFO L175 Difference]: Start difference. First operand has 42 places, 47 transitions, 98 flow. Second operand 3 states and 2444 transitions. [2023-01-27 18:49:21,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 48 transitions, 196 flow [2023-01-27 18:49:21,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 48 transitions, 196 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-27 18:49:21,466 INFO L231 Difference]: Finished difference. Result has 45 places, 48 transitions, 112 flow [2023-01-27 18:49:21,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=45, PETRI_TRANSITIONS=48} [2023-01-27 18:49:21,467 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 0 predicate places. [2023-01-27 18:49:21,467 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 112 flow [2023-01-27 18:49:21,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 800.3333333333334) internal successors, (2401), 3 states have internal predecessors, (2401), 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 18:49:21,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:49:21,469 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:49:21,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:49:21,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:49:21,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:49:21,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1091993785, now seen corresponding path program 1 times [2023-01-27 18:49:21,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:49:21,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798848412] [2023-01-27 18:49:21,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:49:21,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:49:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:49:22,486 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 18:49:22,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:49:22,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798848412] [2023-01-27 18:49:22,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798848412] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:49:22,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883780933] [2023-01-27 18:49:22,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:49:22,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:49:22,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:49:22,495 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 18:49:22,588 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 18:49:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:49:23,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-27 18:49:23,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:49:23,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-27 18:49:23,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:49:23,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883780933] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:49:23,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:49:23,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-01-27 18:49:23,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472385437] [2023-01-27 18:49:23,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:49:23,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:49:23,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:49:23,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:49:23,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:49:23,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 763 out of 1803 [2023-01-27 18:49:23,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 765.6666666666666) internal successors, (2297), 3 states have internal predecessors, (2297), 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 18:49:23,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:49:23,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 763 of 1803 [2023-01-27 18:49:23,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:49:24,623 INFO L130 PetriNetUnfolder]: 376/691 cut-off events. [2023-01-27 18:49:24,623 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-01-27 18:49:24,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1412 conditions, 691 events. 376/691 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2822 event pairs, 135 based on Foata normal form. 0/613 useless extension candidates. Maximal degree in co-relation 1407. Up to 377 conditions per place. [2023-01-27 18:49:24,625 INFO L137 encePairwiseOnDemand]: 1799/1803 looper letters, 63 selfloop transitions, 3 changer transitions 0/66 dead transitions. [2023-01-27 18:49:24,625 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 66 transitions, 281 flow [2023-01-27 18:49:24,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:49:24,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:49:24,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2355 transitions. [2023-01-27 18:49:24,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4353854686633389 [2023-01-27 18:49:24,643 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2355 transitions. [2023-01-27 18:49:24,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2355 transitions. [2023-01-27 18:49:24,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:49:24,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2355 transitions. [2023-01-27 18:49:24,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 785.0) internal successors, (2355), 3 states have internal predecessors, (2355), 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 18:49:24,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1803.0) internal successors, (7212), 4 states have internal predecessors, (7212), 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 18:49:24,669 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1803.0) internal successors, (7212), 4 states have internal predecessors, (7212), 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 18:49:24,669 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 112 flow. Second operand 3 states and 2355 transitions. [2023-01-27 18:49:24,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 66 transitions, 281 flow [2023-01-27 18:49:24,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 66 transitions, 277 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-27 18:49:24,671 INFO L231 Difference]: Finished difference. Result has 47 places, 50 transitions, 127 flow [2023-01-27 18:49:24,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=47, PETRI_TRANSITIONS=50} [2023-01-27 18:49:24,673 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 2 predicate places. [2023-01-27 18:49:24,673 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 50 transitions, 127 flow [2023-01-27 18:49:24,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 765.6666666666666) internal successors, (2297), 3 states have internal predecessors, (2297), 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 18:49:24,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:49:24,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:49:24,696 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 18:49:24,885 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 18:49:24,885 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:49:24,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:49:24,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1002200024, now seen corresponding path program 1 times [2023-01-27 18:49:24,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:49:24,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236210247] [2023-01-27 18:49:24,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:49:24,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:49:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:49:25,837 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 18:49:25,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:49:25,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236210247] [2023-01-27 18:49:25,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236210247] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:49:25,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476195171] [2023-01-27 18:49:25,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:49:25,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:49:25,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:49:25,863 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 18:49:25,955 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 18:49:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:49:27,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-27 18:49:27,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:49:27,106 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 18:49:27,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:49:27,315 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 18:49:27,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476195171] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:49:27,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:49:27,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-01-27 18:49:27,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998210545] [2023-01-27 18:49:27,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:49:27,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-27 18:49:27,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:49:27,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-27 18:49:27,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:49:27,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 798 out of 1803 [2023-01-27 18:49:27,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 50 transitions, 127 flow. Second operand has 8 states, 8 states have (on average 800.125) internal successors, (6401), 8 states have internal predecessors, (6401), 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 18:49:27,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:49:27,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 798 of 1803 [2023-01-27 18:49:27,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:49:28,829 INFO L130 PetriNetUnfolder]: 376/696 cut-off events. [2023-01-27 18:49:28,830 INFO L131 PetriNetUnfolder]: For 81/81 co-relation queries the response was YES. [2023-01-27 18:49:28,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1538 conditions, 696 events. 376/696 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2754 event pairs, 358 based on Foata normal form. 0/626 useless extension candidates. Maximal degree in co-relation 1532. Up to 691 conditions per place. [2023-01-27 18:49:28,845 INFO L137 encePairwiseOnDemand]: 1795/1803 looper letters, 47 selfloop transitions, 8 changer transitions 0/55 dead transitions. [2023-01-27 18:49:28,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 55 transitions, 253 flow [2023-01-27 18:49:28,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 18:49:28,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 18:49:28,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4851 transitions. [2023-01-27 18:49:28,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44841930116472545 [2023-01-27 18:49:28,858 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4851 transitions. [2023-01-27 18:49:28,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4851 transitions. [2023-01-27 18:49:28,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:49:28,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4851 transitions. [2023-01-27 18:49:28,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 808.5) internal successors, (4851), 6 states have internal predecessors, (4851), 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 18:49:28,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1803.0) internal successors, (12621), 7 states have internal predecessors, (12621), 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 18:49:28,940 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1803.0) internal successors, (12621), 7 states have internal predecessors, (12621), 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 18:49:28,940 INFO L175 Difference]: Start difference. First operand has 47 places, 50 transitions, 127 flow. Second operand 6 states and 4851 transitions. [2023-01-27 18:49:28,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 55 transitions, 253 flow [2023-01-27 18:49:28,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 55 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 18:49:28,970 INFO L231 Difference]: Finished difference. Result has 54 places, 55 transitions, 190 flow [2023-01-27 18:49:28,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=190, PETRI_PLACES=54, PETRI_TRANSITIONS=55} [2023-01-27 18:49:28,973 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2023-01-27 18:49:28,973 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 55 transitions, 190 flow [2023-01-27 18:49:28,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 800.125) internal successors, (6401), 8 states have internal predecessors, (6401), 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 18:49:28,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:49:28,974 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:49:29,005 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 18:49:29,198 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 18:49:29,198 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:49:29,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:49:29,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1231745623, now seen corresponding path program 2 times [2023-01-27 18:49:29,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:49:29,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847684147] [2023-01-27 18:49:29,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:49:29,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:49:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:49:30,727 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 18:49:30,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:49:30,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847684147] [2023-01-27 18:49:30,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847684147] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:49:30,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091966282] [2023-01-27 18:49:30,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:49:30,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:49:30,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:49:30,729 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 18:49:30,731 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 18:49:33,175 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 18:49:33,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:49:33,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 22 conjunts are in the unsatisfiable core [2023-01-27 18:49:33,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:49:33,620 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-27 18:49:33,621 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 18:49:33,629 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 18:49:33,827 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 18:49:33,868 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 18:49:33,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:49:33,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091966282] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:49:33,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:49:33,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-01-27 18:49:33,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968698663] [2023-01-27 18:49:33,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:49:33,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 18:49:33,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:49:33,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 18:49:33,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-01-27 18:49:33,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 760 out of 1803 [2023-01-27 18:49:33,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 55 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 762.75) internal successors, (3051), 4 states have internal predecessors, (3051), 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 18:49:33,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:49:33,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 760 of 1803 [2023-01-27 18:49:33,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:49:35,612 INFO L130 PetriNetUnfolder]: 412/783 cut-off events. [2023-01-27 18:49:35,612 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2023-01-27 18:49:35,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1718 conditions, 783 events. 412/783 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3327 event pairs, 229 based on Foata normal form. 0/727 useless extension candidates. Maximal degree in co-relation 1709. Up to 291 conditions per place. [2023-01-27 18:49:35,615 INFO L137 encePairwiseOnDemand]: 1798/1803 looper letters, 76 selfloop transitions, 6 changer transitions 2/84 dead transitions. [2023-01-27 18:49:35,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 84 transitions, 429 flow [2023-01-27 18:49:35,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 18:49:35,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 18:49:35,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3117 transitions. [2023-01-27 18:49:35,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4321963394342762 [2023-01-27 18:49:35,631 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3117 transitions. [2023-01-27 18:49:35,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3117 transitions. [2023-01-27 18:49:35,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:49:35,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3117 transitions. [2023-01-27 18:49:35,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 779.25) internal successors, (3117), 4 states have internal predecessors, (3117), 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 18:49:35,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1803.0) internal successors, (9015), 5 states have internal predecessors, (9015), 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 18:49:35,660 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1803.0) internal successors, (9015), 5 states have internal predecessors, (9015), 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 18:49:35,660 INFO L175 Difference]: Start difference. First operand has 54 places, 55 transitions, 190 flow. Second operand 4 states and 3117 transitions. [2023-01-27 18:49:35,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 84 transitions, 429 flow [2023-01-27 18:49:35,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 84 transitions, 419 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-01-27 18:49:35,664 INFO L231 Difference]: Finished difference. Result has 57 places, 57 transitions, 209 flow [2023-01-27 18:49:35,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=209, PETRI_PLACES=57, PETRI_TRANSITIONS=57} [2023-01-27 18:49:35,666 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 12 predicate places. [2023-01-27 18:49:35,666 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 57 transitions, 209 flow [2023-01-27 18:49:35,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 762.75) internal successors, (3051), 4 states have internal predecessors, (3051), 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 18:49:35,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:49:35,667 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:49:35,685 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 18:49:35,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:49:35,876 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:49:35,877 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:49:35,877 INFO L85 PathProgramCache]: Analyzing trace with hash -470590488, now seen corresponding path program 1 times [2023-01-27 18:49:35,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:49:35,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732323277] [2023-01-27 18:49:35,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:49:35,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:49:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:49:37,026 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 18:49:37,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:49:37,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732323277] [2023-01-27 18:49:37,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732323277] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:49:37,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239619303] [2023-01-27 18:49:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:49:37,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:49:37,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:49:37,033 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 18:49:37,099 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 18:49:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:49:39,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 15 conjunts are in the unsatisfiable core [2023-01-27 18:49:39,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:49:40,006 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 18:49:40,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:49:40,328 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 18:49:40,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239619303] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:49:40,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:49:40,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2023-01-27 18:49:40,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348737513] [2023-01-27 18:49:40,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:49:40,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-01-27 18:49:40,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:49:40,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-01-27 18:49:40,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-01-27 18:49:40,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 802 out of 1803 [2023-01-27 18:49:40,343 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 57 transitions, 209 flow. Second operand has 16 states, 16 states have (on average 803.625) internal successors, (12858), 16 states have internal predecessors, (12858), 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 18:49:40,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:49:40,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 802 of 1803 [2023-01-27 18:49:40,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:49:41,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-27 18:49:44,045 INFO L130 PetriNetUnfolder]: 412/792 cut-off events. [2023-01-27 18:49:44,045 INFO L131 PetriNetUnfolder]: For 247/247 co-relation queries the response was YES. [2023-01-27 18:49:44,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1873 conditions, 792 events. 412/792 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3327 event pairs, 388 based on Foata normal form. 9/768 useless extension candidates. Maximal degree in co-relation 1862. Up to 778 conditions per place. [2023-01-27 18:49:44,051 INFO L137 encePairwiseOnDemand]: 1795/1803 looper letters, 49 selfloop transitions, 17 changer transitions 0/66 dead transitions. [2023-01-27 18:49:44,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 66 transitions, 389 flow [2023-01-27 18:49:44,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-27 18:49:44,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-27 18:49:44,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 9704 transitions. [2023-01-27 18:49:44,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4485117396931041 [2023-01-27 18:49:44,079 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 9704 transitions. [2023-01-27 18:49:44,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 9704 transitions. [2023-01-27 18:49:44,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:49:44,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 9704 transitions. [2023-01-27 18:49:44,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 808.6666666666666) internal successors, (9704), 12 states have internal predecessors, (9704), 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 18:49:44,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1803.0) internal successors, (23439), 13 states have internal predecessors, (23439), 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 18:49:44,146 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1803.0) internal successors, (23439), 13 states have internal predecessors, (23439), 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 18:49:44,146 INFO L175 Difference]: Start difference. First operand has 57 places, 57 transitions, 209 flow. Second operand 12 states and 9704 transitions. [2023-01-27 18:49:44,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 66 transitions, 389 flow [2023-01-27 18:49:44,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 66 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:49:44,156 INFO L231 Difference]: Finished difference. Result has 72 places, 66 transitions, 346 flow [2023-01-27 18:49:44,156 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=346, PETRI_PLACES=72, PETRI_TRANSITIONS=66} [2023-01-27 18:49:44,157 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 27 predicate places. [2023-01-27 18:49:44,158 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 66 transitions, 346 flow [2023-01-27 18:49:44,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 803.625) internal successors, (12858), 16 states have internal predecessors, (12858), 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 18:49:44,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:49:44,161 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:49:44,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-27 18:49:44,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:49:44,385 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:49:44,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:49:44,386 INFO L85 PathProgramCache]: Analyzing trace with hash 710289800, now seen corresponding path program 2 times [2023-01-27 18:49:44,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:49:44,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830815057] [2023-01-27 18:49:44,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:49:44,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:49:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:49:46,359 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 18:49:46,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:49:46,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830815057] [2023-01-27 18:49:46,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830815057] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:49:46,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360651797] [2023-01-27 18:49:46,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:49:46,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:49:46,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:49:46,365 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:49:46,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-27 18:49:48,015 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 18:49:48,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:49:48,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 1106 conjuncts, 243 conjunts are in the unsatisfiable core [2023-01-27 18:49:48,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:49:48,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:48,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:54,781 WARN L222 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 1202 DAG size of output: 283 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-27 18:49:54,789 INFO L321 Elim1Store]: treesize reduction 9076, result has 6.5 percent of original size [2023-01-27 18:49:54,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 77 case distinctions, treesize of input 427 treesize of output 974 [2023-01-27 18:50:08,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:08,505 INFO L321 Elim1Store]: treesize reduction 198, result has 23.6 percent of original size [2023-01-27 18:50:08,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 403 treesize of output 436 [2023-01-27 18:50:08,648 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-01-27 18:50:08,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 346 [2023-01-27 18:50:08,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 335 [2023-01-27 18:50:08,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 329 [2023-01-27 18:50:08,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 323 [2023-01-27 18:50:09,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:50:09,342 INFO L321 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2023-01-27 18:50:09,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 100 treesize of output 116 [2023-01-27 18:50:09,469 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-01-27 18:50:09,775 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 18:50:09,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-01-27 18:50:09,904 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-01-27 18:50:09,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:50:09,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360651797] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:50:09,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:50:09,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 17 [2023-01-27 18:50:09,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064315761] [2023-01-27 18:50:09,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:50:09,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:50:09,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:50:09,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:50:09,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2023-01-27 18:50:09,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 701 out of 1803 [2023-01-27 18:50:09,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 66 transitions, 346 flow. Second operand has 7 states, 7 states have (on average 702.7142857142857) internal successors, (4919), 7 states have internal predecessors, (4919), 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 18:50:09,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:50:09,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 701 of 1803 [2023-01-27 18:50:09,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:50:10,746 INFO L130 PetriNetUnfolder]: 387/750 cut-off events. [2023-01-27 18:50:10,746 INFO L131 PetriNetUnfolder]: For 167/167 co-relation queries the response was YES. [2023-01-27 18:50:10,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1780 conditions, 750 events. 387/750 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3146 event pairs, 223 based on Foata normal form. 17/734 useless extension candidates. Maximal degree in co-relation 1763. Up to 333 conditions per place. [2023-01-27 18:50:10,750 INFO L137 encePairwiseOnDemand]: 1791/1803 looper letters, 78 selfloop transitions, 14 changer transitions 2/94 dead transitions. [2023-01-27 18:50:10,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 94 transitions, 609 flow [2023-01-27 18:50:10,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 18:50:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 18:50:10,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4283 transitions. [2023-01-27 18:50:10,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39591421704566465 [2023-01-27 18:50:10,758 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4283 transitions. [2023-01-27 18:50:10,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4283 transitions. [2023-01-27 18:50:10,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:50:10,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4283 transitions. [2023-01-27 18:50:10,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 713.8333333333334) internal successors, (4283), 6 states have internal predecessors, (4283), 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 18:50:10,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1803.0) internal successors, (12621), 7 states have internal predecessors, (12621), 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 18:50:10,799 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1803.0) internal successors, (12621), 7 states have internal predecessors, (12621), 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 18:50:10,800 INFO L175 Difference]: Start difference. First operand has 72 places, 66 transitions, 346 flow. Second operand 6 states and 4283 transitions. [2023-01-27 18:50:10,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 94 transitions, 609 flow [2023-01-27 18:50:10,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 94 transitions, 569 flow, removed 18 selfloop flow, removed 2 redundant places. [2023-01-27 18:50:10,803 INFO L231 Difference]: Finished difference. Result has 76 places, 67 transitions, 349 flow [2023-01-27 18:50:10,804 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=349, PETRI_PLACES=76, PETRI_TRANSITIONS=67} [2023-01-27 18:50:10,805 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 31 predicate places. [2023-01-27 18:50:10,805 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 67 transitions, 349 flow [2023-01-27 18:50:10,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 702.7142857142857) internal successors, (4919), 7 states have internal predecessors, (4919), 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 18:50:10,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:50:10,806 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:50:10,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-27 18:50:11,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:50:11,021 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:50:11,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:50:11,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1903990909, now seen corresponding path program 1 times [2023-01-27 18:50:11,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:50:11,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799801502] [2023-01-27 18:50:11,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:50:11,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:50:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:50:13,158 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 18:50:13,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:50:13,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799801502] [2023-01-27 18:50:13,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799801502] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:50:13,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484013154] [2023-01-27 18:50:13,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:50:13,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:50:13,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:50:13,181 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:50:13,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-27 18:50:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:50:15,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 27 conjunts are in the unsatisfiable core [2023-01-27 18:50:15,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:50:15,941 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 18:50:15,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:50:16,599 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 18:50:16,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484013154] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:50:16,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:50:16,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2023-01-27 18:50:16,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973092865] [2023-01-27 18:50:16,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:50:16,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-01-27 18:50:16,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:50:16,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-01-27 18:50:16,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=812, Unknown=0, NotChecked=0, Total=1122 [2023-01-27 18:50:16,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 802 out of 1803 [2023-01-27 18:50:16,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 67 transitions, 349 flow. Second operand has 34 states, 34 states have (on average 803.3529411764706) internal successors, (27314), 34 states have internal predecessors, (27314), 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 18:50:16,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:50:16,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 802 of 1803 [2023-01-27 18:50:16,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:50:31,395 WARN L222 SmtUtils]: Spent 5.55s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 18:50:44,540 INFO L130 PetriNetUnfolder]: 387/768 cut-off events. [2023-01-27 18:50:44,543 INFO L131 PetriNetUnfolder]: For 1472/1472 co-relation queries the response was YES. [2023-01-27 18:50:44,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1938 conditions, 768 events. 387/768 cut-off events. For 1472/1472 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3197 event pairs, 365 based on Foata normal form. 30/767 useless extension candidates. Maximal degree in co-relation 1919. Up to 736 conditions per place. [2023-01-27 18:50:44,561 INFO L137 encePairwiseOnDemand]: 1795/1803 looper letters, 50 selfloop transitions, 35 changer transitions 0/85 dead transitions. [2023-01-27 18:50:44,561 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 85 transitions, 615 flow [2023-01-27 18:50:44,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-27 18:50:44,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-27 18:50:44,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 19364 transitions. [2023-01-27 18:50:44,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44749491588093915 [2023-01-27 18:50:44,613 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 19364 transitions. [2023-01-27 18:50:44,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 19364 transitions. [2023-01-27 18:50:44,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:50:44,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 19364 transitions. [2023-01-27 18:50:44,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 806.8333333333334) internal successors, (19364), 24 states have internal predecessors, (19364), 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 18:50:44,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 1803.0) internal successors, (45075), 25 states have internal predecessors, (45075), 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 18:50:44,722 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 1803.0) internal successors, (45075), 25 states have internal predecessors, (45075), 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 18:50:44,722 INFO L175 Difference]: Start difference. First operand has 76 places, 67 transitions, 349 flow. Second operand 24 states and 19364 transitions. [2023-01-27 18:50:44,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 85 transitions, 615 flow [2023-01-27 18:50:44,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 85 transitions, 592 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-27 18:50:44,737 INFO L231 Difference]: Finished difference. Result has 107 places, 85 transitions, 614 flow [2023-01-27 18:50:44,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1803, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=614, PETRI_PLACES=107, PETRI_TRANSITIONS=85} [2023-01-27 18:50:44,739 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 62 predicate places. [2023-01-27 18:50:44,739 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 85 transitions, 614 flow [2023-01-27 18:50:44,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 803.3529411764706) internal successors, (27314), 34 states have internal predecessors, (27314), 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 18:50:44,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:50:44,743 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:50:44,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-27 18:50:44,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:50:44,969 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:50:44,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:50:44,969 INFO L85 PathProgramCache]: Analyzing trace with hash -39699523, now seen corresponding path program 2 times [2023-01-27 18:50:44,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:50:44,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655630449] [2023-01-27 18:50:44,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:50:44,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:50:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:50:48,079 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:48,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:50:48,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655630449] [2023-01-27 18:50:48,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655630449] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:50:48,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468292153] [2023-01-27 18:50:48,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:50:48,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:50:48,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:50:48,082 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:50:48,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-27 18:50:54,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-27 18:50:54,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:50:54,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 1508 conjuncts, 51 conjunts are in the unsatisfiable core [2023-01-27 18:50:54,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:50:55,168 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:55,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:50:56,904 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:50:56,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468292153] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:50:56,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:50:56,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 70 [2023-01-27 18:50:56,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229852564] [2023-01-27 18:50:56,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:50:56,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-01-27 18:50:56,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:50:56,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-01-27 18:50:56,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1221, Invalid=3749, Unknown=0, NotChecked=0, Total=4970 [2023-01-27 18:50:56,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 798 out of 1803 [2023-01-27 18:50:56,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 85 transitions, 614 flow. Second operand has 71 states, 71 states have (on average 799.169014084507) internal successors, (56741), 71 states have internal predecessors, (56741), 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 18:50:56,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:50:56,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 798 of 1803 [2023-01-27 18:50:56,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-01-27 18:53:00,812 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 18:53:00,833 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 18:53:01,565 WARN L238 SmtUtils]: Removed 7 from assertion stack [2023-01-27 18:53:01,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-01-27 18:53:01,566 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2023-01-27 18:53:01,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-01-27 18:53:01,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:53:01,767 WARN L619 AbstractCegarLoop]: Verification canceled: while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 44989ms.. [2023-01-27 18:53:01,768 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2023-01-27 18:53:01,768 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 9 remaining) [2023-01-27 18:53:01,769 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2023-01-27 18:53:01,769 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2023-01-27 18:53:01,769 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2023-01-27 18:53:01,769 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2023-01-27 18:53:01,769 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2023-01-27 18:53:01,769 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2023-01-27 18:53:01,769 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1] [2023-01-27 18:53:01,772 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 18:53:01,772 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 18:53:01,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 06:53:01 BasicIcfg [2023-01-27 18:53:01,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 18:53:01,774 INFO L158 Benchmark]: Toolchain (without parser) took 898711.08ms. Allocated memory was 461.4MB in the beginning and 1.5GB in the end (delta: 1.0GB). Free memory was 396.0MB in the beginning and 506.1MB in the end (delta: -110.1MB). Peak memory consumption was 907.8MB. Max. memory is 16.0GB. [2023-01-27 18:53:01,774 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 327.2MB. Free memory is still 271.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:53:01,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6697.10ms. Allocated memory is still 461.4MB. Free memory was 395.8MB in the beginning and 277.1MB in the end (delta: 118.7MB). Peak memory consumption was 133.4MB. Max. memory is 16.0GB. [2023-01-27 18:53:01,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 259.74ms. Allocated memory was 461.4MB in the beginning and 589.3MB in the end (delta: 127.9MB). Free memory was 277.1MB in the beginning and 514.1MB in the end (delta: -237.0MB). Peak memory consumption was 7.3MB. Max. memory is 16.0GB. [2023-01-27 18:53:01,775 INFO L158 Benchmark]: Boogie Preprocessor took 110.69ms. Allocated memory is still 589.3MB. Free memory was 513.1MB in the beginning and 507.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-01-27 18:53:01,775 INFO L158 Benchmark]: RCFGBuilder took 1569.92ms. Allocated memory is still 589.3MB. Free memory was 507.8MB in the beginning and 433.4MB in the end (delta: 74.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.0GB. [2023-01-27 18:53:01,775 INFO L158 Benchmark]: TraceAbstraction took 890068.81ms. Allocated memory was 589.3MB in the beginning and 1.5GB in the end (delta: 887.1MB). Free memory was 432.3MB in the beginning and 506.1MB in the end (delta: -73.8MB). Peak memory consumption was 813.2MB. Max. memory is 16.0GB. [2023-01-27 18:53:01,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 327.2MB. Free memory is still 271.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 6697.10ms. Allocated memory is still 461.4MB. Free memory was 395.8MB in the beginning and 277.1MB in the end (delta: 118.7MB). Peak memory consumption was 133.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 259.74ms. Allocated memory was 461.4MB in the beginning and 589.3MB in the end (delta: 127.9MB). Free memory was 277.1MB in the beginning and 514.1MB in the end (delta: -237.0MB). Peak memory consumption was 7.3MB. Max. memory is 16.0GB. * Boogie Preprocessor took 110.69ms. Allocated memory is still 589.3MB. Free memory was 513.1MB in the beginning and 507.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * RCFGBuilder took 1569.92ms. Allocated memory is still 589.3MB. Free memory was 507.8MB in the beginning and 433.4MB in the end (delta: 74.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.0GB. * TraceAbstraction took 890068.81ms. Allocated memory was 589.3MB in the beginning and 1.5GB in the end (delta: 887.1MB). Free memory was 432.3MB in the beginning and 506.1MB in the end (delta: -73.8MB). Peak memory consumption was 813.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 665.9s, 796 PlacesBefore, 45 PlacesAfterwards, 854 TransitionsBefore, 64 TransitionsAfterwards, 35388 CoEnabledTransitionPairs, 10 FixpointIterations, 552 TrivialSequentialCompositions, 222 ConcurrentSequentialCompositions, 84 TrivialYvCompositions, 42 ConcurrentYvCompositions, 39 ChoiceCompositions, 939 TotalNumberOfCompositions, 30501 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27371, independent: 27161, independent conditional: 0, independent unconditional: 27161, dependent: 210, dependent conditional: 0, dependent unconditional: 210, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 18704, independent: 18647, independent conditional: 0, independent unconditional: 18647, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 27371, independent: 8514, independent conditional: 0, independent unconditional: 8514, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 18704, unknown conditional: 0, unknown unconditional: 18704] , Statistics on independence cache: Total cache size (in pairs): 159, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, 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 PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 44989ms.. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 44989ms.. - 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 PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 44989ms.. - 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 PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 44989ms.. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 44989ms.. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 44989ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 1030 locations, 9 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: 889.7s, OverallIterations: 9, TraceHistogramMax: 22, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 163.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 666.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 23.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 117 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 22.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 141 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3209 IncrementalHoareTripleChecker+Invalid, 3350 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 141 mSolverCounterUnsat, 0 mSDtfsCounter, 3209 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 309 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 28.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=614occurred in iteration=8, InterpolantAutomatonStates: 60, 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: 0.6s SsaConstructionTime, 16.8s SatisfiabilityAnalysisTime, 36.8s InterpolantComputationTime, 264 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 328 ConstructedInterpolants, 13 QuantifiedInterpolants, 2421 SizeOfPredicates, 193 NumberOfNonLiveVariables, 8380 ConjunctsInSsa, 377 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 66/1089 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