/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 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:37:50,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:37:50,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:37:50,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:37:50,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:37:50,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:37:50,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:37:50,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:37:50,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:37:50,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:37:50,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:37:50,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:37:50,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:37:50,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:37:50,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:37:50,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:37:50,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:37:50,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:37:50,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:37:50,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:37:50,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:37:50,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:37:50,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:37:50,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:37:50,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:37:50,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:37:50,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:37:50,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:37:50,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:37:50,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:37:50,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:37:50,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:37:50,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:37:50,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:37:50,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:37:50,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:37:50,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:37:50,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:37:50,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:37:50,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:37:50,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:37:50,657 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 [2023-01-28 07:37:50,677 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:37:50,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:37:50,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:37:50,678 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:37:50,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:37:50,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:37:50,678 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:37:50,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:37:50,679 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:37:50,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:37:50,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:37:50,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:37:50,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:37:50,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:37:50,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:37:50,679 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:37:50,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:37:50,679 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:37:50,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:37:50,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:37:50,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:37:50,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:37:50,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:37:50,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:37:50,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:37:50,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:37:50,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:37:50,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:37:50,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:37:50,682 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:37:50,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:37:50,682 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:37:50,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:37:50,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:37:50,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:37:50,832 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:37:50,832 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:37:50,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2023-01-28 07:37:51,715 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:37:52,080 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:37:52,080 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2023-01-28 07:37:52,112 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c01e4dfb/74e731a69cca49ec90e7012eee44be65/FLAGa5f4d68cd [2023-01-28 07:37:52,123 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c01e4dfb/74e731a69cca49ec90e7012eee44be65 [2023-01-28 07:37:52,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:37:52,126 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:37:52,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:37:52,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:37:52,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:37:52,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:37:52" (1/1) ... [2023-01-28 07:37:52,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3311980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:37:52, skipping insertion in model container [2023-01-28 07:37:52,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:37:52" (1/1) ... [2023-01-28 07:37:52,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:37:52,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:37:52,433 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i[5469,5482] [2023-01-28 07:37:54,542 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 07:37:54,904 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:37:54,905 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:37:54,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:37:54,948 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:37:54,956 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i[5469,5482] [2023-01-28 07:37:55,052 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 07:37:55,090 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:37:55,090 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:37:55,098 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:37:55,484 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:37:55,484 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:37:55,484 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:37:55,484 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:37:55,484 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:37:55,485 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:37:55,485 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:37:55,489 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:37:55,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:37:55 WrapperNode [2023-01-28 07:37:55,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:37:55,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:37:55,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:37:55,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:37:55,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:37:55" (1/1) ... [2023-01-28 07:37:55,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:37:55" (1/1) ... [2023-01-28 07:37:55,618 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 53, statements flattened = 708 [2023-01-28 07:37:55,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:37:55,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:37:55,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:37:55,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:37:55,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:37:55" (1/1) ... [2023-01-28 07:37:55,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:37:55" (1/1) ... [2023-01-28 07:37:55,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:37:55" (1/1) ... [2023-01-28 07:37:55,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:37:55" (1/1) ... [2023-01-28 07:37:55,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:37:55" (1/1) ... [2023-01-28 07:37:55,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:37:55" (1/1) ... [2023-01-28 07:37:55,659 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:37:55" (1/1) ... [2023-01-28 07:37:55,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:37:55" (1/1) ... [2023-01-28 07:37:55,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:37:55,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:37:55,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:37:55,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:37:55,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:37:55" (1/1) ... [2023-01-28 07:37:55,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:37:55,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:37:55,704 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) [2023-01-28 07:37:55,714 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 [2023-01-28 07:37:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:37:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 07:37:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:37:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-28 07:37:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:37:55,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:37:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2023-01-28 07:37:55,729 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2023-01-28 07:37:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-28 07:37:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:37:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-28 07:37:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:37:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:37:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-28 07:37:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-28 07:37:55,729 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-28 07:37:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:37:55,730 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 07:37:56,092 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:37:56,093 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:37:56,650 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:37:56,662 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:37:56,662 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2023-01-28 07:37:56,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:37:56 BoogieIcfgContainer [2023-01-28 07:37:56,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:37:56,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:37:56,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:37:56,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:37:56,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:37:52" (1/3) ... [2023-01-28 07:37:56,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61bbdb41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:37:56, skipping insertion in model container [2023-01-28 07:37:56,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:37:55" (2/3) ... [2023-01-28 07:37:56,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61bbdb41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:37:56, skipping insertion in model container [2023-01-28 07:37:56,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:37:56" (3/3) ... [2023-01-28 07:37:56,678 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2023-01-28 07:37:56,688 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:37:56,688 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-01-28 07:37:56,688 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:37:56,780 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 07:37:56,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 724 places, 771 transitions, 1558 flow [2023-01-28 07:37:56,950 INFO L130 PetriNetUnfolder]: 54/769 cut-off events. [2023-01-28 07:37:56,950 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:37:56,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 769 events. 54/769 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1093 event pairs, 0 based on Foata normal form. 0/712 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-28 07:37:56,956 INFO L82 GeneralOperation]: Start removeDead. Operand has 724 places, 771 transitions, 1558 flow [2023-01-28 07:37:56,963 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 714 places, 761 transitions, 1531 flow [2023-01-28 07:37:56,965 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:37:56,971 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 714 places, 761 transitions, 1531 flow [2023-01-28 07:37:56,972 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 714 places, 761 transitions, 1531 flow [2023-01-28 07:37:56,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 714 places, 761 transitions, 1531 flow [2023-01-28 07:37:57,066 INFO L130 PetriNetUnfolder]: 54/761 cut-off events. [2023-01-28 07:37:57,066 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:37:57,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 761 events. 54/761 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1043 event pairs, 0 based on Foata normal form. 0/704 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-28 07:37:57,074 INFO L119 LiptonReduction]: Number of co-enabled transitions 13812 [2023-01-28 07:38:49,202 WARN L222 SmtUtils]: Spent 5.45s on a formula simplification that was a NOOP. DAG size: 336 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:38:59,238 WARN L222 SmtUtils]: Spent 6.05s on a formula simplification that was a NOOP. DAG size: 336 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:39:47,906 WARN L222 SmtUtils]: Spent 42.01s on a formula simplification that was a NOOP. DAG size: 534 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:40:29,473 WARN L222 SmtUtils]: Spent 41.57s on a formula simplification that was a NOOP. DAG size: 534 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:41:09,623 WARN L222 SmtUtils]: Spent 40.15s on a formula simplification that was a NOOP. DAG size: 534 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:41:49,455 WARN L222 SmtUtils]: Spent 39.83s on a formula simplification that was a NOOP. DAG size: 534 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:43:36,778 WARN L222 SmtUtils]: Spent 1.56m on a formula simplification. DAG size of input: 590 DAG size of output: 585 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:44:27,547 WARN L222 SmtUtils]: Spent 50.77s 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) [2023-01-28 07:46:29,659 WARN L222 SmtUtils]: Spent 2.04m on a formula simplification. DAG size of input: 596 DAG size of output: 589 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:47:00,038 WARN L222 SmtUtils]: Spent 30.38s 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) [2023-01-28 07:47:09,127 INFO L134 LiptonReduction]: Checked pairs total: 13470 [2023-01-28 07:47:09,128 INFO L136 LiptonReduction]: Total number of compositions: 845 [2023-01-28 07:47:09,137 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:47:09,141 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;@712a7ec2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:47:09,141 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-01-28 07:47:09,148 INFO L130 PetriNetUnfolder]: 6/12 cut-off events. [2023-01-28 07:47:09,148 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:47:09,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:47:09,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-28 07:47:09,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:47:09,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:47:09,154 INFO L85 PathProgramCache]: Analyzing trace with hash 2815618, now seen corresponding path program 1 times [2023-01-28 07:47:09,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:47:09,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095699398] [2023-01-28 07:47:09,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:47:09,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:47:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:47:09,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:47:09,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:47:09,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095699398] [2023-01-28 07:47:09,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095699398] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:47:09,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:47:09,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 07:47:09,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877755407] [2023-01-28 07:47:09,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:47:09,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 07:47:09,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:47:09,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 07:47:09,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 07:47:09,628 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 733 out of 1616 [2023-01-28 07:47:09,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 56 transitions, 121 flow. Second operand has 2 states, 2 states have (on average 734.5) internal successors, (1469), 2 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:09,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:47:09,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 733 of 1616 [2023-01-28 07:47:09,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:47:09,850 INFO L130 PetriNetUnfolder]: 169/319 cut-off events. [2023-01-28 07:47:09,850 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-01-28 07:47:09,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 319 events. 169/319 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1048 event pairs, 159 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 566. Up to 320 conditions per place. [2023-01-28 07:47:09,853 INFO L137 encePairwiseOnDemand]: 1601/1616 looper letters, 41 selfloop transitions, 0 changer transitions 0/41 dead transitions. [2023-01-28 07:47:09,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 41 transitions, 173 flow [2023-01-28 07:47:09,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 07:47:09,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 07:47:09,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1522 transitions. [2023-01-28 07:47:09,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4709158415841584 [2023-01-28 07:47:09,871 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1522 transitions. [2023-01-28 07:47:09,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1522 transitions. [2023-01-28 07:47:09,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:47:09,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1522 transitions. [2023-01-28 07:47:09,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 761.0) internal successors, (1522), 2 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:09,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1616.0) internal successors, (4848), 3 states have internal predecessors, (4848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:09,893 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1616.0) internal successors, (4848), 3 states have internal predecessors, (4848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:09,896 INFO L175 Difference]: Start difference. First operand has 39 places, 56 transitions, 121 flow. Second operand 2 states and 1522 transitions. [2023-01-28 07:47:09,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 41 transitions, 173 flow [2023-01-28 07:47:09,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 168 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-28 07:47:09,904 INFO L231 Difference]: Finished difference. Result has 36 places, 41 transitions, 86 flow [2023-01-28 07:47:09,906 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1616, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=86, PETRI_PLACES=36, PETRI_TRANSITIONS=41} [2023-01-28 07:47:09,908 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -3 predicate places. [2023-01-28 07:47:09,908 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 41 transitions, 86 flow [2023-01-28 07:47:09,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 734.5) internal successors, (1469), 2 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:09,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:47:09,910 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:47:09,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:47:09,910 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:47:09,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:47:09,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1633786917, now seen corresponding path program 1 times [2023-01-28 07:47:09,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:47:09,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19344361] [2023-01-28 07:47:09,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:47:09,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:47:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:47:10,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:47:10,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:47:10,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19344361] [2023-01-28 07:47:10,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19344361] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:47:10,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:47:10,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:47:10,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906303025] [2023-01-28 07:47:10,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:47:10,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:47:10,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:47:10,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:47:10,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:47:10,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 701 out of 1616 [2023-01-28 07:47:10,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 41 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 703.6666666666666) internal successors, (2111), 3 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:10,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:47:10,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 701 of 1616 [2023-01-28 07:47:10,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:47:11,358 INFO L130 PetriNetUnfolder]: 170/332 cut-off events. [2023-01-28 07:47:11,358 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-28 07:47:11,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 332 events. 170/332 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1191 event pairs, 69 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 683. Up to 190 conditions per place. [2023-01-28 07:47:11,360 INFO L137 encePairwiseOnDemand]: 1612/1616 looper letters, 48 selfloop transitions, 3 changer transitions 3/54 dead transitions. [2023-01-28 07:47:11,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 54 transitions, 221 flow [2023-01-28 07:47:11,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:47:11,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:47:11,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2158 transitions. [2023-01-28 07:47:11,364 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4451320132013201 [2023-01-28 07:47:11,364 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2158 transitions. [2023-01-28 07:47:11,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2158 transitions. [2023-01-28 07:47:11,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:47:11,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2158 transitions. [2023-01-28 07:47:11,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 719.3333333333334) internal successors, (2158), 3 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:11,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1616.0) internal successors, (6464), 4 states have internal predecessors, (6464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:11,376 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1616.0) internal successors, (6464), 4 states have internal predecessors, (6464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:11,376 INFO L175 Difference]: Start difference. First operand has 36 places, 41 transitions, 86 flow. Second operand 3 states and 2158 transitions. [2023-01-28 07:47:11,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 54 transitions, 221 flow [2023-01-28 07:47:11,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 54 transitions, 221 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 07:47:11,378 INFO L231 Difference]: Finished difference. Result has 40 places, 43 transitions, 108 flow [2023-01-28 07:47:11,378 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1616, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=40, PETRI_TRANSITIONS=43} [2023-01-28 07:47:11,378 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-01-28 07:47:11,378 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 43 transitions, 108 flow [2023-01-28 07:47:11,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 703.6666666666666) internal successors, (2111), 3 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:11,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:47:11,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:47:11,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:47:11,380 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:47:11,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:47:11,380 INFO L85 PathProgramCache]: Analyzing trace with hash 375739505, now seen corresponding path program 1 times [2023-01-28 07:47:11,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:47:11,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659540765] [2023-01-28 07:47:11,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:47:11,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:47:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:47:12,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:47:12,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:47:12,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659540765] [2023-01-28 07:47:12,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659540765] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:47:12,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:47:12,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:47:12,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197770628] [2023-01-28 07:47:12,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:47:12,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:47:12,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:47:12,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:47:12,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:47:12,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 715 out of 1616 [2023-01-28 07:47:12,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 43 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:12,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:47:12,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 715 of 1616 [2023-01-28 07:47:12,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:47:12,255 INFO L130 PetriNetUnfolder]: 170/333 cut-off events. [2023-01-28 07:47:12,255 INFO L131 PetriNetUnfolder]: For 91/91 co-relation queries the response was YES. [2023-01-28 07:47:12,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 333 events. 170/333 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1141 event pairs, 152 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 787. Up to 333 conditions per place. [2023-01-28 07:47:12,257 INFO L137 encePairwiseOnDemand]: 1612/1616 looper letters, 42 selfloop transitions, 2 changer transitions 0/44 dead transitions. [2023-01-28 07:47:12,257 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 44 transitions, 198 flow [2023-01-28 07:47:12,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:47:12,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:47:12,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2189 transitions. [2023-01-28 07:47:12,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.451526402640264 [2023-01-28 07:47:12,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2189 transitions. [2023-01-28 07:47:12,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2189 transitions. [2023-01-28 07:47:12,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:47:12,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2189 transitions. [2023-01-28 07:47:12,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 729.6666666666666) internal successors, (2189), 3 states have internal predecessors, (2189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:12,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1616.0) internal successors, (6464), 4 states have internal predecessors, (6464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:12,273 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1616.0) internal successors, (6464), 4 states have internal predecessors, (6464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:12,273 INFO L175 Difference]: Start difference. First operand has 40 places, 43 transitions, 108 flow. Second operand 3 states and 2189 transitions. [2023-01-28 07:47:12,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 44 transitions, 198 flow [2023-01-28 07:47:12,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 44 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:47:12,275 INFO L231 Difference]: Finished difference. Result has 41 places, 44 transitions, 116 flow [2023-01-28 07:47:12,275 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1616, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=41, PETRI_TRANSITIONS=44} [2023-01-28 07:47:12,276 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2023-01-28 07:47:12,276 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 44 transitions, 116 flow [2023-01-28 07:47:12,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:12,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:47:12,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:47:12,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 07:47:12,278 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:47:12,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:47:12,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1338763587, now seen corresponding path program 1 times [2023-01-28 07:47:12,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:47:12,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125308145] [2023-01-28 07:47:12,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:47:12,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:47:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:47:12,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:47:12,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:47:12,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125308145] [2023-01-28 07:47:12,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125308145] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:47:12,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320116607] [2023-01-28 07:47:12,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:47:12,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:47:12,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:47:12,979 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) [2023-01-28 07:47:12,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 07:47:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:47:14,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-28 07:47:14,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:47:14,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:47:14,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:47:14,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:47:14,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320116607] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:47:14,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:47:14,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-01-28 07:47:14,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10212297] [2023-01-28 07:47:14,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:47:14,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:47:14,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:47:14,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:47:14,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:47:14,414 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 715 out of 1616 [2023-01-28 07:47:14,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 44 transitions, 116 flow. Second operand has 7 states, 7 states have (on average 717.2857142857143) internal successors, (5021), 7 states have internal predecessors, (5021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:14,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:47:14,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 715 of 1616 [2023-01-28 07:47:14,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:47:14,878 INFO L130 PetriNetUnfolder]: 170/338 cut-off events. [2023-01-28 07:47:14,878 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-01-28 07:47:14,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 338 events. 170/338 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1167 event pairs, 152 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 772. Up to 333 conditions per place. [2023-01-28 07:47:14,879 INFO L137 encePairwiseOnDemand]: 1608/1616 looper letters, 41 selfloop transitions, 8 changer transitions 0/49 dead transitions. [2023-01-28 07:47:14,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 49 transitions, 230 flow [2023-01-28 07:47:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 07:47:14,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 07:47:14,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4347 transitions. [2023-01-28 07:47:14,887 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44832920792079206 [2023-01-28 07:47:14,887 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4347 transitions. [2023-01-28 07:47:14,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4347 transitions. [2023-01-28 07:47:14,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:47:14,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4347 transitions. [2023-01-28 07:47:14,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:14,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1616.0) internal successors, (11312), 7 states have internal predecessors, (11312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:14,907 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1616.0) internal successors, (11312), 7 states have internal predecessors, (11312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:14,907 INFO L175 Difference]: Start difference. First operand has 41 places, 44 transitions, 116 flow. Second operand 6 states and 4347 transitions. [2023-01-28 07:47:14,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 49 transitions, 230 flow [2023-01-28 07:47:14,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 49 transitions, 226 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 07:47:14,908 INFO L231 Difference]: Finished difference. Result has 48 places, 49 transitions, 178 flow [2023-01-28 07:47:14,908 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1616, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=178, PETRI_PLACES=48, PETRI_TRANSITIONS=49} [2023-01-28 07:47:14,909 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2023-01-28 07:47:14,909 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 49 transitions, 178 flow [2023-01-28 07:47:14,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 717.2857142857143) internal successors, (5021), 7 states have internal predecessors, (5021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:14,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:47:14,911 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:47:14,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-28 07:47:15,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:47:15,119 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:47:15,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:47:15,119 INFO L85 PathProgramCache]: Analyzing trace with hash -2050164495, now seen corresponding path program 2 times [2023-01-28 07:47:15,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:47:15,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513640617] [2023-01-28 07:47:15,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:47:15,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:47:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:47:15,796 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:47:15,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:47:15,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513640617] [2023-01-28 07:47:15,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513640617] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:47:15,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166931446] [2023-01-28 07:47:15,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:47:15,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:47:15,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:47:15,799 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) [2023-01-28 07:47:15,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 07:47:16,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-28 07:47:16,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:47:16,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 22 conjunts are in the unsatisfiable core [2023-01-28 07:47:16,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:47:16,874 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-28 07:47:16,874 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 [2023-01-28 07:47:16,883 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 [2023-01-28 07:47:16,992 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 [2023-01-28 07:47:17,012 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-01-28 07:47:17,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 07:47:17,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166931446] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:47:17,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:47:17,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-01-28 07:47:17,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842501727] [2023-01-28 07:47:17,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:47:17,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 07:47:17,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:47:17,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 07:47:17,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-01-28 07:47:17,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 679 out of 1616 [2023-01-28 07:47:17,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 49 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 681.75) internal successors, (2727), 4 states have internal predecessors, (2727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:17,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:47:17,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 679 of 1616 [2023-01-28 07:47:17,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:47:17,616 INFO L130 PetriNetUnfolder]: 178/363 cut-off events. [2023-01-28 07:47:17,617 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2023-01-28 07:47:17,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 860 conditions, 363 events. 178/363 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1335 event pairs, 89 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 851. Up to 153 conditions per place. [2023-01-28 07:47:17,618 INFO L137 encePairwiseOnDemand]: 1611/1616 looper letters, 53 selfloop transitions, 5 changer transitions 7/65 dead transitions. [2023-01-28 07:47:17,618 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 65 transitions, 351 flow [2023-01-28 07:47:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:47:17,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:47:17,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2775 transitions. [2023-01-28 07:47:17,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42930074257425743 [2023-01-28 07:47:17,623 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2775 transitions. [2023-01-28 07:47:17,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2775 transitions. [2023-01-28 07:47:17,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:47:17,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2775 transitions. [2023-01-28 07:47:17,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 693.75) internal successors, (2775), 4 states have internal predecessors, (2775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:17,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1616.0) internal successors, (8080), 5 states have internal predecessors, (8080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:17,635 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1616.0) internal successors, (8080), 5 states have internal predecessors, (8080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:17,635 INFO L175 Difference]: Start difference. First operand has 48 places, 49 transitions, 178 flow. Second operand 4 states and 2775 transitions. [2023-01-28 07:47:17,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 65 transitions, 351 flow [2023-01-28 07:47:17,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 65 transitions, 341 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-01-28 07:47:17,637 INFO L231 Difference]: Finished difference. Result has 51 places, 50 transitions, 190 flow [2023-01-28 07:47:17,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1616, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=51, PETRI_TRANSITIONS=50} [2023-01-28 07:47:17,637 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 12 predicate places. [2023-01-28 07:47:17,638 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 50 transitions, 190 flow [2023-01-28 07:47:17,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 681.75) internal successors, (2727), 4 states have internal predecessors, (2727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:17,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:47:17,638 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:47:17,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-28 07:47:17,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:47:17,846 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:47:17,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:47:17,847 INFO L85 PathProgramCache]: Analyzing trace with hash 869410682, now seen corresponding path program 1 times [2023-01-28 07:47:17,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:47:17,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435236722] [2023-01-28 07:47:17,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:47:17,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:47:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:47:18,704 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:47:18,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:47:18,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435236722] [2023-01-28 07:47:18,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435236722] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:47:18,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837269844] [2023-01-28 07:47:18,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:47:18,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:47:18,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:47:18,709 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) [2023-01-28 07:47:18,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 07:47:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:47:19,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 1176 conjuncts, 15 conjunts are in the unsatisfiable core [2023-01-28 07:47:19,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:47:19,924 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:47:19,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:47:20,130 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:47:20,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837269844] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:47:20,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:47:20,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-01-28 07:47:20,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898065963] [2023-01-28 07:47:20,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:47:20,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-28 07:47:20,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:47:20,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-28 07:47:20,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2023-01-28 07:47:20,136 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 711 out of 1616 [2023-01-28 07:47:20,141 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 50 transitions, 190 flow. Second operand has 17 states, 17 states have (on average 712.5882352941177) internal successors, (12114), 17 states have internal predecessors, (12114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:20,142 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:47:20,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 711 of 1616 [2023-01-28 07:47:20,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:47:22,156 INFO L130 PetriNetUnfolder]: 166/348 cut-off events. [2023-01-28 07:47:22,157 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2023-01-28 07:47:22,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 348 events. 166/348 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1236 event pairs, 148 based on Foata normal form. 9/350 useless extension candidates. Maximal degree in co-relation 902. Up to 334 conditions per place. [2023-01-28 07:47:22,158 INFO L137 encePairwiseOnDemand]: 1608/1616 looper letters, 42 selfloop transitions, 17 changer transitions 0/59 dead transitions. [2023-01-28 07:47:22,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 59 transitions, 356 flow [2023-01-28 07:47:22,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-28 07:47:22,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-28 07:47:22,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8606 transitions. [2023-01-28 07:47:22,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44379125412541254 [2023-01-28 07:47:22,173 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 8606 transitions. [2023-01-28 07:47:22,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 8606 transitions. [2023-01-28 07:47:22,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:47:22,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 8606 transitions. [2023-01-28 07:47:22,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 717.1666666666666) internal successors, (8606), 12 states have internal predecessors, (8606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:22,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1616.0) internal successors, (21008), 13 states have internal predecessors, (21008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:22,205 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1616.0) internal successors, (21008), 13 states have internal predecessors, (21008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:22,205 INFO L175 Difference]: Start difference. First operand has 51 places, 50 transitions, 190 flow. Second operand 12 states and 8606 transitions. [2023-01-28 07:47:22,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 59 transitions, 356 flow [2023-01-28 07:47:22,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 59 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:47:22,210 INFO L231 Difference]: Finished difference. Result has 66 places, 59 transitions, 328 flow [2023-01-28 07:47:22,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1616, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=328, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2023-01-28 07:47:22,212 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 27 predicate places. [2023-01-28 07:47:22,212 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 328 flow [2023-01-28 07:47:22,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 712.5882352941177) internal successors, (12114), 17 states have internal predecessors, (12114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:47:22,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:47:22,217 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:47:22,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 07:47:22,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:47:22,429 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-28 07:47:22,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:47:22,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1641300154, now seen corresponding path program 2 times [2023-01-28 07:47:22,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:47:22,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821093227] [2023-01-28 07:47:22,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:47:22,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:47:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:47:23,619 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:47:23,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:47:23,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821093227] [2023-01-28 07:47:23,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821093227] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:47:23,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284684758] [2023-01-28 07:47:23,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:47:23,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:47:23,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:47:23,621 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) [2023-01-28 07:47:23,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-28 07:47:24,497 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-28 07:47:24,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:47:24,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 123 conjunts are in the unsatisfiable core [2023-01-28 07:47:24,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:47:24,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:24,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:47:30,115 WARN L222 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 1048 DAG size of output: 277 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-28 07:47:30,127 INFO L321 Elim1Store]: treesize reduction 8778, result has 6.9 percent of original size [2023-01-28 07:47:30,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 30 case distinctions, treesize of input 153 treesize of output 731 Received shutdown request... [2023-01-28 07:51:50,870 WARN L238 SmtUtils]: Removed 2 from assertion stack [2023-01-28 07:51:50,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-01-28 07:51:50,871 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 [2023-01-28 07:51:50,871 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 07:51:50,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-01-28 07:51:51,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:51:51,080 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 15ms.. [2023-01-28 07:51:51,081 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-01-28 07:51:51,081 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-01-28 07:51:51,081 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-01-28 07:51:51,081 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-01-28 07:51:51,081 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-01-28 07:51:51,081 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-01-28 07:51:51,082 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-01-28 07:51:51,085 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:51:51,085 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:51:51,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:51:51 BasicIcfg [2023-01-28 07:51:51,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:51:51,087 INFO L158 Benchmark]: Toolchain (without parser) took 838961.12ms. Allocated memory was 490.7MB in the beginning and 1.1GB in the end (delta: 633.3MB). Free memory was 440.1MB in the beginning and 423.5MB in the end (delta: 16.6MB). Peak memory consumption was 755.5MB. Max. memory is 16.0GB. [2023-01-28 07:51:51,087 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 364.9MB. Free memory is still 313.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:51:51,087 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3362.72ms. Allocated memory is still 490.7MB. Free memory was 440.1MB in the beginning and 363.1MB in the end (delta: 76.9MB). Peak memory consumption was 166.2MB. Max. memory is 16.0GB. [2023-01-28 07:51:51,087 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.11ms. Allocated memory is still 490.7MB. Free memory was 363.1MB in the beginning and 351.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 07:51:51,087 INFO L158 Benchmark]: Boogie Preprocessor took 62.76ms. Allocated memory is still 490.7MB. Free memory was 351.6MB in the beginning and 346.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-28 07:51:51,087 INFO L158 Benchmark]: RCFGBuilder took 984.89ms. Allocated memory is still 490.7MB. Free memory was 345.3MB in the beginning and 280.3MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.0GB. [2023-01-28 07:51:51,088 INFO L158 Benchmark]: TraceAbstraction took 834412.49ms. Allocated memory was 490.7MB in the beginning and 1.1GB in the end (delta: 633.3MB). Free memory was 279.2MB in the beginning and 423.5MB in the end (delta: -144.2MB). Peak memory consumption was 593.5MB. Max. memory is 16.0GB. [2023-01-28 07:51:51,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 364.9MB. Free memory is still 313.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 3362.72ms. Allocated memory is still 490.7MB. Free memory was 440.1MB in the beginning and 363.1MB in the end (delta: 76.9MB). Peak memory consumption was 166.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 128.11ms. Allocated memory is still 490.7MB. Free memory was 363.1MB in the beginning and 351.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Preprocessor took 62.76ms. Allocated memory is still 490.7MB. Free memory was 351.6MB in the beginning and 346.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 984.89ms. Allocated memory is still 490.7MB. Free memory was 345.3MB in the beginning and 280.3MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.0GB. * TraceAbstraction took 834412.49ms. Allocated memory was 490.7MB in the beginning and 1.1GB in the end (delta: 633.3MB). Free memory was 279.2MB in the beginning and 423.5MB in the end (delta: -144.2MB). Peak memory consumption was 593.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 552.2s, 714 PlacesBefore, 39 PlacesAfterwards, 761 TransitionsBefore, 56 TransitionsAfterwards, 13812 CoEnabledTransitionPairs, 12 FixpointIterations, 567 TrivialSequentialCompositions, 148 ConcurrentSequentialCompositions, 77 TrivialYvCompositions, 23 ConcurrentYvCompositions, 30 ChoiceCompositions, 845 TotalNumberOfCompositions, 13470 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10562, independent: 10372, independent conditional: 0, independent unconditional: 10372, dependent: 190, dependent conditional: 0, dependent unconditional: 190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7363, independent: 7324, independent conditional: 0, independent unconditional: 7324, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10562, independent: 3048, independent conditional: 0, independent unconditional: 3048, dependent: 151, dependent conditional: 0, dependent unconditional: 151, unknown: 7363, unknown conditional: 0, unknown unconditional: 7363] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 15ms.. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 15ms.. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 15ms.. - TimeoutResultAtElement [Line: 7069]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 15ms.. - TimeoutResultAtElement [Line: 7068]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 15ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 866 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 834.3s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 552.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 921 IncrementalHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 0 mSDtfsCounter, 921 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=328occurred in iteration=6, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 101 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 461 SizeOfPredicates, 50 NumberOfNonLiveVariables, 3377 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 10/53 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown