/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_get_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:27:29,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:27:29,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:27:29,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:27:29,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:27:29,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:27:29,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:27:29,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:27:29,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:27:29,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:27:29,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:27:29,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:27:29,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:27:29,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:27:29,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:27:29,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:27:29,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:27:29,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:27:29,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:27:29,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:27:29,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:27:29,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:27:29,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:27:29,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:27:29,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:27:29,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:27:29,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:27:29,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:27:29,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:27:29,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:27:29,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:27:29,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:27:29,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:27:29,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:27:29,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:27:29,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:27:29,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:27:29,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:27:29,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:27:29,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:27:29,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:27:29,740 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 07:27:29,767 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:27:29,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:27:29,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:27:29,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:27:29,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:27:29,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:27:29,770 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:27:29,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:27:29,770 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:27:29,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:27:29,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:27:29,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:27:29,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:27:29,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:27:29,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:27:29,771 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:27:29,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:27:29,771 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:27:29,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:27:29,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:27:29,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:27:29,772 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:27:29,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:27:29,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:27:29,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:27:29,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:27:29,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:27:29,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:27:29,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:27:29,773 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:27:29,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:27:29,773 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:27:29,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:27:29,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:27:29,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:27:29,990 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:27:29,991 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:27:29,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i [2023-01-28 07:27:31,071 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:27:31,543 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:27:31,543 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i [2023-01-28 07:27:31,581 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a312f203c/e7324dfc2f3444779af3712d2d29de93/FLAG57a8ddc9b [2023-01-28 07:27:31,594 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a312f203c/e7324dfc2f3444779af3712d2d29de93 [2023-01-28 07:27:31,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:27:31,597 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:27:31,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:27:31,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:27:31,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:27:31,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:27:31" (1/1) ... [2023-01-28 07:27:31,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e5fed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:31, skipping insertion in model container [2023-01-28 07:27:31,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:27:31" (1/1) ... [2023-01-28 07:27:31,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:27:31,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:27:32,035 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_get_pc8736x_gpio_set.i[5469,5482] [2023-01-28 07:27:34,927 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 07:27:35,342 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:27:35,342 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:27:35,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:27:35,401 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:27:35,424 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_get_pc8736x_gpio_set.i[5469,5482] [2023-01-28 07:27:35,573 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-28 07:27:35,662 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:27:35,662 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-28 07:27:35,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:27:36,084 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:27:36,084 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:27:36,084 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:27:36,084 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:27:36,084 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:27:36,084 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:27:36,084 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:27:36,091 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:27:36,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:36 WrapperNode [2023-01-28 07:27:36,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:27:36,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:27:36,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:27:36,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:27:36,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:36" (1/1) ... [2023-01-28 07:27:36,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:36" (1/1) ... [2023-01-28 07:27:36,238 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 51, statements flattened = 697 [2023-01-28 07:27:36,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:27:36,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:27:36,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:27:36,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:27:36,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:36" (1/1) ... [2023-01-28 07:27:36,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:36" (1/1) ... [2023-01-28 07:27:36,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:36" (1/1) ... [2023-01-28 07:27:36,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:36" (1/1) ... [2023-01-28 07:27:36,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:36" (1/1) ... [2023-01-28 07:27:36,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:36" (1/1) ... [2023-01-28 07:27:36,284 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:36" (1/1) ... [2023-01-28 07:27:36,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:36" (1/1) ... [2023-01-28 07:27:36,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:27:36,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:27:36,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:27:36,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:27:36,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:36" (1/1) ... [2023-01-28 07:27:36,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:27:36,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:27:36,330 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 07:27:36,360 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 07:27:36,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:27:36,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 07:27:36,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:27:36,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-28 07:27:36,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:27:36,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:27:36,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-28 07:27:36,377 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_get [2023-01-28 07:27:36,377 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_get [2023-01-28 07:27:36,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:27:36,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-28 07:27:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:27:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:27:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-28 07:27:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-28 07:27:36,378 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-28 07:27:36,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:27:36,380 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 07:27:36,848 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:27:36,850 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:27:37,537 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:27:37,568 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:27:37,568 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2023-01-28 07:27:37,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:27:37 BoogieIcfgContainer [2023-01-28 07:27:37,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:27:37,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:27:37,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:27:37,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:27:37,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:27:31" (1/3) ... [2023-01-28 07:27:37,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14dbf41f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:27:37, skipping insertion in model container [2023-01-28 07:27:37,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:27:36" (2/3) ... [2023-01-28 07:27:37,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14dbf41f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:27:37, skipping insertion in model container [2023-01-28 07:27:37,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:27:37" (3/3) ... [2023-01-28 07:27:37,577 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i [2023-01-28 07:27:37,612 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:27:37,612 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-28 07:27:37,612 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:27:37,730 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 07:27:37,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 712 places, 758 transitions, 1532 flow [2023-01-28 07:27:37,973 INFO L130 PetriNetUnfolder]: 53/756 cut-off events. [2023-01-28 07:27:37,973 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:27:37,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 765 conditions, 756 events. 53/756 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1023 event pairs, 0 based on Foata normal form. 0/701 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-28 07:27:37,981 INFO L82 GeneralOperation]: Start removeDead. Operand has 712 places, 758 transitions, 1532 flow [2023-01-28 07:27:37,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 702 places, 748 transitions, 1505 flow [2023-01-28 07:27:37,992 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:27:38,000 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 702 places, 748 transitions, 1505 flow [2023-01-28 07:27:38,003 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 702 places, 748 transitions, 1505 flow [2023-01-28 07:27:38,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 702 places, 748 transitions, 1505 flow [2023-01-28 07:27:38,125 INFO L130 PetriNetUnfolder]: 53/748 cut-off events. [2023-01-28 07:27:38,126 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:27:38,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 748 events. 53/748 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 969 event pairs, 0 based on Foata normal form. 0/693 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-28 07:27:38,134 INFO L119 LiptonReduction]: Number of co-enabled transitions 10796 [2023-01-28 07:28:32,719 WARN L222 SmtUtils]: Spent 5.90s on a formula simplification that was a NOOP. DAG size: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:28:43,510 WARN L222 SmtUtils]: Spent 6.14s on a formula simplification that was a NOOP. DAG size: 292 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:28:48,642 WARN L222 SmtUtils]: Spent 5.13s on a formula simplification that was a NOOP. DAG size: 258 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:31:12,837 WARN L222 SmtUtils]: Spent 2.08m on a formula simplification. DAG size of input: 613 DAG size of output: 611 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:32:05,567 WARN L222 SmtUtils]: Spent 52.71s on a formula simplification that was a NOOP. DAG size: 551 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:34:28,015 WARN L222 SmtUtils]: Spent 2.37m on a formula simplification. DAG size of input: 616 DAG size of output: 614 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:35:29,744 WARN L222 SmtUtils]: Spent 1.03m on a formula simplification that was a NOOP. DAG size: 554 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:36:10,596 WARN L222 SmtUtils]: Spent 31.37s on a formula simplification that was a NOOP. DAG size: 585 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:37:16,414 WARN L222 SmtUtils]: Spent 1.10m 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 07:37:51,540 WARN L222 SmtUtils]: Spent 35.12s on a formula simplification that was a NOOP. DAG size: 588 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-28 07:39:00,170 WARN L222 SmtUtils]: Spent 1.14m 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 07:39:00,182 INFO L134 LiptonReduction]: Checked pairs total: 9378 [2023-01-28 07:39:00,182 INFO L136 LiptonReduction]: Total number of compositions: 820 [2023-01-28 07:39:00,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:39:00,198 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;@71a27bcd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:39:00,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-28 07:39:00,207 INFO L130 PetriNetUnfolder]: 6/12 cut-off events. [2023-01-28 07:39:00,207 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:39:00,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:39:00,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-28 07:39:00,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:39:00,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:39:00,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2749147, now seen corresponding path program 1 times [2023-01-28 07:39:00,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:39:00,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860781225] [2023-01-28 07:39:00,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:39:00,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:39:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:39:00,669 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 07:39:00,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:39:00,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860781225] [2023-01-28 07:39:00,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860781225] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:39:00,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:39:00,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 07:39:00,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974652462] [2023-01-28 07:39:00,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:39:00,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 07:39:00,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:39:00,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 07:39:00,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 07:39:00,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 722 out of 1578 [2023-01-28 07:39:00,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 52 transitions, 113 flow. Second operand has 2 states, 2 states have (on average 723.5) internal successors, (1447), 2 states have internal predecessors, (1447), 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 07:39:00,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:39:00,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 722 of 1578 [2023-01-28 07:39:00,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:39:00,986 INFO L130 PetriNetUnfolder]: 88/178 cut-off events. [2023-01-28 07:39:00,986 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-01-28 07:39:00,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 178 events. 88/178 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 482 event pairs, 78 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 308. Up to 179 conditions per place. [2023-01-28 07:39:00,990 INFO L137 encePairwiseOnDemand]: 1564/1578 looper letters, 35 selfloop transitions, 0 changer transitions 3/38 dead transitions. [2023-01-28 07:39:00,990 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 161 flow [2023-01-28 07:39:00,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 07:39:00,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 07:39:01,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1496 transitions. [2023-01-28 07:39:01,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4740177439797212 [2023-01-28 07:39:01,014 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1496 transitions. [2023-01-28 07:39:01,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1496 transitions. [2023-01-28 07:39:01,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:39:01,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1496 transitions. [2023-01-28 07:39:01,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 748.0) internal successors, (1496), 2 states have internal predecessors, (1496), 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 07:39:01,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1578.0) internal successors, (4734), 3 states have internal predecessors, (4734), 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 07:39:01,047 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1578.0) internal successors, (4734), 3 states have internal predecessors, (4734), 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 07:39:01,049 INFO L175 Difference]: Start difference. First operand has 36 places, 52 transitions, 113 flow. Second operand 2 states and 1496 transitions. [2023-01-28 07:39:01,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 161 flow [2023-01-28 07:39:01,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 38 transitions, 156 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-28 07:39:01,060 INFO L231 Difference]: Finished difference. Result has 33 places, 35 transitions, 73 flow [2023-01-28 07:39:01,062 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1578, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=73, PETRI_PLACES=33, PETRI_TRANSITIONS=35} [2023-01-28 07:39:01,067 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-01-28 07:39:01,068 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 35 transitions, 73 flow [2023-01-28 07:39:01,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 723.5) internal successors, (1447), 2 states have internal predecessors, (1447), 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 07:39:01,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:39:01,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:39:01,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:39:01,070 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:39:01,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:39:01,071 INFO L85 PathProgramCache]: Analyzing trace with hash 8169022, now seen corresponding path program 1 times [2023-01-28 07:39:01,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:39:01,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484553068] [2023-01-28 07:39:01,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:39:01,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:39:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:39:02,368 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 07:39:02,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:39:02,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484553068] [2023-01-28 07:39:02,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484553068] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:39:02,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:39:02,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:39:02,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103872747] [2023-01-28 07:39:02,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:39:02,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:39:02,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:39:02,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:39:02,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:39:02,376 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 1578 [2023-01-28 07:39:02,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 35 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 703.3333333333334) internal successors, (2110), 3 states have internal predecessors, (2110), 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 07:39:02,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:39:02,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 1578 [2023-01-28 07:39:02,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:39:02,661 INFO L130 PetriNetUnfolder]: 75/152 cut-off events. [2023-01-28 07:39:02,661 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:39:02,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 152 events. 75/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 403 event pairs, 65 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 321. Up to 152 conditions per place. [2023-01-28 07:39:02,662 INFO L137 encePairwiseOnDemand]: 1574/1578 looper letters, 34 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2023-01-28 07:39:02,662 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 36 transitions, 147 flow [2023-01-28 07:39:02,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:39:02,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:39:02,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2138 transitions. [2023-01-28 07:39:02,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4516265314744402 [2023-01-28 07:39:02,669 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2138 transitions. [2023-01-28 07:39:02,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2138 transitions. [2023-01-28 07:39:02,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:39:02,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2138 transitions. [2023-01-28 07:39:02,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 712.6666666666666) internal successors, (2138), 3 states have internal predecessors, (2138), 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 07:39:02,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1578.0) internal successors, (6312), 4 states have internal predecessors, (6312), 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 07:39:02,686 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1578.0) internal successors, (6312), 4 states have internal predecessors, (6312), 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 07:39:02,686 INFO L175 Difference]: Start difference. First operand has 33 places, 35 transitions, 73 flow. Second operand 3 states and 2138 transitions. [2023-01-28 07:39:02,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 36 transitions, 147 flow [2023-01-28 07:39:02,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 147 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 07:39:02,688 INFO L231 Difference]: Finished difference. Result has 33 places, 36 transitions, 87 flow [2023-01-28 07:39:02,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1578, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=33, PETRI_TRANSITIONS=36} [2023-01-28 07:39:02,689 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-01-28 07:39:02,689 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 36 transitions, 87 flow [2023-01-28 07:39:02,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 703.3333333333334) internal successors, (2110), 3 states have internal predecessors, (2110), 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 07:39:02,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:39:02,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:39:02,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:39:02,691 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:39:02,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:39:02,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1671669015, now seen corresponding path program 1 times [2023-01-28 07:39:02,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:39:02,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658486342] [2023-01-28 07:39:02,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:39:02,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:39:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:39:03,724 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 07:39:03,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:39:03,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658486342] [2023-01-28 07:39:03,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658486342] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:39:03,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463152027] [2023-01-28 07:39:03,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:39:03,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:39:03,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:39:03,733 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 07:39:03,762 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 07:39:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:39:04,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-28 07:39:04,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:39:05,086 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 07:39:05,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:39:05,406 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 07:39:05,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463152027] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:39:05,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:39:05,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-01-28 07:39:05,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692562444] [2023-01-28 07:39:05,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:39:05,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 07:39:05,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:39:05,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 07:39:05,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-01-28 07:39:05,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 704 out of 1578 [2023-01-28 07:39:05,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 36 transitions, 87 flow. Second operand has 7 states, 7 states have (on average 706.2857142857143) internal successors, (4944), 7 states have internal predecessors, (4944), 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 07:39:05,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:39:05,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 704 of 1578 [2023-01-28 07:39:05,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:39:05,911 INFO L130 PetriNetUnfolder]: 75/157 cut-off events. [2023-01-28 07:39:05,911 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:39:05,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 157 events. 75/157 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 421 event pairs, 65 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 340. Up to 152 conditions per place. [2023-01-28 07:39:05,912 INFO L137 encePairwiseOnDemand]: 1570/1578 looper letters, 33 selfloop transitions, 8 changer transitions 0/41 dead transitions. [2023-01-28 07:39:05,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 185 flow [2023-01-28 07:39:05,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 07:39:05,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 07:39:05,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4275 transitions. [2023-01-28 07:39:05,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4515209125475285 [2023-01-28 07:39:05,923 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4275 transitions. [2023-01-28 07:39:05,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4275 transitions. [2023-01-28 07:39:05,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:39:05,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4275 transitions. [2023-01-28 07:39:05,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 712.5) internal successors, (4275), 6 states have internal predecessors, (4275), 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 07:39:05,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1578.0) internal successors, (11046), 7 states have internal predecessors, (11046), 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 07:39:05,955 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1578.0) internal successors, (11046), 7 states have internal predecessors, (11046), 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 07:39:05,956 INFO L175 Difference]: Start difference. First operand has 33 places, 36 transitions, 87 flow. Second operand 6 states and 4275 transitions. [2023-01-28 07:39:05,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 185 flow [2023-01-28 07:39:05,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 181 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 07:39:05,957 INFO L231 Difference]: Finished difference. Result has 40 places, 41 transitions, 149 flow [2023-01-28 07:39:05,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1578, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=149, PETRI_PLACES=40, PETRI_TRANSITIONS=41} [2023-01-28 07:39:05,958 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2023-01-28 07:39:05,958 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 41 transitions, 149 flow [2023-01-28 07:39:05,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 706.2857142857143) internal successors, (4944), 7 states have internal predecessors, (4944), 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 07:39:05,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:39:05,960 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:39:05,973 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 07:39:06,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:39:06,171 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:39:06,171 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:39:06,171 INFO L85 PathProgramCache]: Analyzing trace with hash -719718146, now seen corresponding path program 2 times [2023-01-28 07:39:06,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:39:06,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169136021] [2023-01-28 07:39:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:39:06,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:39:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:39:07,078 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 07:39:07,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:39:07,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169136021] [2023-01-28 07:39:07,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169136021] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:39:07,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994075191] [2023-01-28 07:39:07,078 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:39:07,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:39:07,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:39:07,081 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 07:39:07,093 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 07:39:08,140 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-28 07:39:08,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:39:08,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 22 conjunts are in the unsatisfiable core [2023-01-28 07:39:08,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:39:08,434 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-28 07:39:08,435 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 45 treesize of output 41 [2023-01-28 07:39:08,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-28 07:39:08,597 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 07:39:08,630 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 07:39:08,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 07:39:08,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994075191] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:39:08,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 07:39:08,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-01-28 07:39:08,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573122576] [2023-01-28 07:39:08,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:39:08,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 07:39:08,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:39:08,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 07:39:08,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-01-28 07:39:08,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 669 out of 1578 [2023-01-28 07:39:08,638 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 41 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 671.75) internal successors, (2687), 4 states have internal predecessors, (2687), 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 07:39:08,638 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:39:08,638 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 669 of 1578 [2023-01-28 07:39:08,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:39:09,306 INFO L130 PetriNetUnfolder]: 75/163 cut-off events. [2023-01-28 07:39:09,306 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:39:09,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 163 events. 75/163 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 452 event pairs, 48 based on Foata normal form. 8/164 useless extension candidates. Maximal degree in co-relation 377. Up to 107 conditions per place. [2023-01-28 07:39:09,307 INFO L137 encePairwiseOnDemand]: 1574/1578 looper letters, 38 selfloop transitions, 3 changer transitions 10/51 dead transitions. [2023-01-28 07:39:09,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 275 flow [2023-01-28 07:39:09,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:39:09,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:39:09,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2722 transitions. [2023-01-28 07:39:09,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43124207858048164 [2023-01-28 07:39:09,314 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2722 transitions. [2023-01-28 07:39:09,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2722 transitions. [2023-01-28 07:39:09,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:39:09,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2722 transitions. [2023-01-28 07:39:09,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 680.5) internal successors, (2722), 4 states have internal predecessors, (2722), 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 07:39:09,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1578.0) internal successors, (7890), 5 states have internal predecessors, (7890), 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 07:39:09,330 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1578.0) internal successors, (7890), 5 states have internal predecessors, (7890), 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 07:39:09,330 INFO L175 Difference]: Start difference. First operand has 40 places, 41 transitions, 149 flow. Second operand 4 states and 2722 transitions. [2023-01-28 07:39:09,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 275 flow [2023-01-28 07:39:09,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 265 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-01-28 07:39:09,333 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 149 flow [2023-01-28 07:39:09,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1578, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=149, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2023-01-28 07:39:09,333 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2023-01-28 07:39:09,334 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 149 flow [2023-01-28 07:39:09,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 671.75) internal successors, (2687), 4 states have internal predecessors, (2687), 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 07:39:09,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:39:09,335 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:39:09,347 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 07:39:09,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-01-28 07:39:09,545 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:39:09,546 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:39:09,546 INFO L85 PathProgramCache]: Analyzing trace with hash -836425735, now seen corresponding path program 1 times [2023-01-28 07:39:09,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:39:09,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600705002] [2023-01-28 07:39:09,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:39:09,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:39:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:39:10,513 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 07:39:10,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:39:10,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600705002] [2023-01-28 07:39:10,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600705002] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:39:10,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782424618] [2023-01-28 07:39:10,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:39:10,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:39:10,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:39:10,517 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 07:39:10,520 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 07:39:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:39:11,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 15 conjunts are in the unsatisfiable core [2023-01-28 07:39:11,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:39:11,630 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 07:39:11,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 07:39:11,929 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 07:39:11,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782424618] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 07:39:11,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 07:39:11,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-01-28 07:39:11,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483889377] [2023-01-28 07:39:11,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 07:39:11,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-28 07:39:11,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:39:11,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-28 07:39:11,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2023-01-28 07:39:11,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 1578 [2023-01-28 07:39:11,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 149 flow. Second operand has 17 states, 17 states have (on average 701.5882352941177) internal successors, (11927), 17 states have internal predecessors, (11927), 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 07:39:11,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:39:11,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 1578 [2023-01-28 07:39:11,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:39:14,542 INFO L130 PetriNetUnfolder]: 20/68 cut-off events. [2023-01-28 07:39:14,542 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-01-28 07:39:14,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 68 events. 20/68 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 10 based on Foata normal form. 9/70 useless extension candidates. Maximal degree in co-relation 194. Up to 54 conditions per place. [2023-01-28 07:39:14,543 INFO L137 encePairwiseOnDemand]: 1570/1578 looper letters, 33 selfloop transitions, 17 changer transitions 0/50 dead transitions. [2023-01-28 07:39:14,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 50 transitions, 297 flow [2023-01-28 07:39:14,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-28 07:39:14,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-28 07:39:14,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8468 transitions. [2023-01-28 07:39:14,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4471905365441487 [2023-01-28 07:39:14,561 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 8468 transitions. [2023-01-28 07:39:14,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 8468 transitions. [2023-01-28 07:39:14,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:39:14,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 8468 transitions. [2023-01-28 07:39:14,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 705.6666666666666) internal successors, (8468), 12 states have internal predecessors, (8468), 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 07:39:14,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1578.0) internal successors, (20514), 13 states have internal predecessors, (20514), 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 07:39:14,603 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1578.0) internal successors, (20514), 13 states have internal predecessors, (20514), 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 07:39:14,604 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 149 flow. Second operand 12 states and 8468 transitions. [2023-01-28 07:39:14,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 50 transitions, 297 flow [2023-01-28 07:39:14,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 50 transitions, 291 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-28 07:39:14,608 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 287 flow [2023-01-28 07:39:14,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1578, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=287, PETRI_PLACES=57, PETRI_TRANSITIONS=50} [2023-01-28 07:39:14,610 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 21 predicate places. [2023-01-28 07:39:14,610 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 287 flow [2023-01-28 07:39:14,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 701.5882352941177) internal successors, (11927), 17 states have internal predecessors, (11927), 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 07:39:14,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:39:14,613 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:39:14,626 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 07:39:14,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:39:14,826 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:39:14,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:39:14,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2077819865, now seen corresponding path program 2 times [2023-01-28 07:39:14,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:39:14,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569272329] [2023-01-28 07:39:14,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:39:14,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:39:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:39:16,194 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 07:39:16,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:39:16,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569272329] [2023-01-28 07:39:16,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569272329] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 07:39:16,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001401622] [2023-01-28 07:39:16,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 07:39:16,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:39:16,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:39:16,197 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 07:39:16,201 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 07:39:17,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-28 07:39:17,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 07:39:17,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 1104 conjuncts, 438 conjunts are in the unsatisfiable core [2023-01-28 07:39:17,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 07:39:18,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:18,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:24,884 WARN L222 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 1349 DAG size of output: 204 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-28 07:39:24,890 INFO L321 Elim1Store]: treesize reduction 9782, result has 3.8 percent of original size [2023-01-28 07:39:24,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 10 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 136 case distinctions, treesize of input 852 treesize of output 1150 [2023-01-28 07:39:29,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 07:39:30,171 INFO L321 Elim1Store]: treesize reduction 318, result has 30.1 percent of original size [2023-01-28 07:39:30,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 460 treesize of output 563 [2023-01-28 07:39:30,322 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-01-28 07:39:30,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 346 [2023-01-28 07:39:30,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 335 [2023-01-28 07:39:30,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 329 [2023-01-28 07:39:30,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 323 [2023-01-28 07:39:42,609 INFO L190 IndexEqualityManager]: detected not equals via solver Received shutdown request... [2023-01-28 07:41:23,983 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 07:41:23,984 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 07:41:24,931 WARN L238 SmtUtils]: Removed 22572 from assertion stack [2023-01-28 07:41:24,933 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-28 07:41:24,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-28 07:41:25,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2023-01-28 07:41:25,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 07:41:25,133 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 90731 for 101496ms.. [2023-01-28 07:41:25,135 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-28 07:41:25,135 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-28 07:41:25,135 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-28 07:41:25,135 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-01-28 07:41:25,136 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2023-01-28 07:41:25,139 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:41:25,140 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:41:25,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:41:25 BasicIcfg [2023-01-28 07:41:25,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:41:25,142 INFO L158 Benchmark]: Toolchain (without parser) took 833544.57ms. Allocated memory was 346.0MB in the beginning and 1.3GB in the end (delta: 933.2MB). Free memory was 294.3MB in the beginning and 938.0MB in the end (delta: -643.6MB). Peak memory consumption was 879.4MB. Max. memory is 16.0GB. [2023-01-28 07:41:25,142 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 213.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:41:25,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4491.89ms. Allocated memory was 346.0MB in the beginning and 425.7MB in the end (delta: 79.7MB). Free memory was 294.0MB in the beginning and 275.5MB in the end (delta: 18.5MB). Peak memory consumption was 105.9MB. Max. memory is 16.0GB. [2023-01-28 07:41:25,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 147.10ms. Allocated memory is still 425.7MB. Free memory was 275.5MB in the beginning and 362.2MB in the end (delta: -86.7MB). Peak memory consumption was 4.5MB. Max. memory is 16.0GB. [2023-01-28 07:41:25,143 INFO L158 Benchmark]: Boogie Preprocessor took 54.93ms. Allocated memory is still 425.7MB. Free memory was 362.2MB in the beginning and 356.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-28 07:41:25,143 INFO L158 Benchmark]: RCFGBuilder took 1276.38ms. Allocated memory is still 425.7MB. Free memory was 356.9MB in the beginning and 290.9MB in the end (delta: 66.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.0GB. [2023-01-28 07:41:25,143 INFO L158 Benchmark]: TraceAbstraction took 827568.76ms. Allocated memory was 425.7MB in the beginning and 1.3GB in the end (delta: 853.5MB). Free memory was 289.8MB in the beginning and 938.0MB in the end (delta: -648.1MB). Peak memory consumption was 794.5MB. Max. memory is 16.0GB. [2023-01-28 07:41:25,144 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 213.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 4491.89ms. Allocated memory was 346.0MB in the beginning and 425.7MB in the end (delta: 79.7MB). Free memory was 294.0MB in the beginning and 275.5MB in the end (delta: 18.5MB). Peak memory consumption was 105.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 147.10ms. Allocated memory is still 425.7MB. Free memory was 275.5MB in the beginning and 362.2MB in the end (delta: -86.7MB). Peak memory consumption was 4.5MB. Max. memory is 16.0GB. * Boogie Preprocessor took 54.93ms. Allocated memory is still 425.7MB. Free memory was 362.2MB in the beginning and 356.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 1276.38ms. Allocated memory is still 425.7MB. Free memory was 356.9MB in the beginning and 290.9MB in the end (delta: 66.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.0GB. * TraceAbstraction took 827568.76ms. Allocated memory was 425.7MB in the beginning and 1.3GB in the end (delta: 853.5MB). Free memory was 289.8MB in the beginning and 938.0MB in the end (delta: -648.1MB). Peak memory consumption was 794.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 682.2s, 702 PlacesBefore, 36 PlacesAfterwards, 748 TransitionsBefore, 52 TransitionsAfterwards, 10796 CoEnabledTransitionPairs, 10 FixpointIterations, 565 TrivialSequentialCompositions, 130 ConcurrentSequentialCompositions, 72 TrivialYvCompositions, 23 ConcurrentYvCompositions, 30 ChoiceCompositions, 820 TotalNumberOfCompositions, 9378 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8327, independent: 8224, independent conditional: 0, independent unconditional: 8224, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5648, independent: 5617, independent conditional: 0, independent unconditional: 5617, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8327, independent: 2607, independent conditional: 0, independent unconditional: 2607, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 5648, unknown conditional: 0, unknown unconditional: 5648] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, 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 90731 for 101496ms.. - 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 90731 for 101496ms.. - 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 90731 for 101496ms.. - 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 90731 for 101496ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 842 locations, 5 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: 827.4s, OverallIterations: 6, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 682.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 645 IncrementalHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 0 mSDtfsCounter, 645 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=287occurred in iteration=5, InterpolantAutomatonStates: 27, 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, 4.0s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 93 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 109 ConstructedInterpolants, 1 QuantifiedInterpolants, 413 SizeOfPredicates, 50 NumberOfNonLiveVariables, 3365 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 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