/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:51:36,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:51:36,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:51:36,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:51:36,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:51:36,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:51:36,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:51:36,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:51:36,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:51:36,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:51:36,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:51:36,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:51:36,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:51:36,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:51:36,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:51:36,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:51:36,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:51:36,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:51:36,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:51:36,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:51:36,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:51:36,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:51:36,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:51:36,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:51:36,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 18:51:36,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 18:51:36,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 18:51:36,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 18:51:36,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 18:51:36,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 18:51:36,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 18:51:36,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 18:51:36,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 18:51:36,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 18:51:36,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 18:51:36,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 18:51:36,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 18:51:36,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 18:51:36,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:51:36,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:51:36,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:51:36,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-27 18:51:36,859 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:51:36,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:51:36,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:51:36,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:51:36,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:51:36,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:51:36,860 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:51:36,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:51:36,861 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:51:36,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:51:36,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:51:36,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:51:36,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:51:36,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:51:36,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:51:36,862 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:51:36,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:51:36,862 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:51:36,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:51:36,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:51:36,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:51:36,862 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:51:36,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:51:36,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:51:36,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:51:36,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:51:36,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:51:36,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:51:36,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:51:36,863 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:51:36,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:51:36,863 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:51:37,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:51:37,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:51:37,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:51:37,087 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:51:37,089 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:51:37,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2023-01-27 18:51:38,200 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:51:38,622 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:51:38,623 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2023-01-27 18:51:38,651 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7218939fb/4141dd88ebc8459bb6264b5a965ebbfa/FLAG9067bfd55 [2023-01-27 18:51:38,663 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7218939fb/4141dd88ebc8459bb6264b5a965ebbfa [2023-01-27 18:51:38,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:51:38,666 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:51:38,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:51:38,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:51:38,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:51:38,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:51:38" (1/1) ... [2023-01-27 18:51:38,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1d688f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:51:38, skipping insertion in model container [2023-01-27 18:51:38,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:51:38" (1/1) ... [2023-01-27 18:51:38,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:51:38,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:51:38,994 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i[5469,5482] [2023-01-27 18:51:40,974 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:51:41,330 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:51:41,330 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:51:41,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:51:41,396 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:51:41,411 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i[5469,5482] [2023-01-27 18:51:41,525 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:51:41,616 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:51:41,616 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:51:41,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:51:42,020 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:51:42,020 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:51:42,020 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:51:42,020 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:51:42,021 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:51:42,021 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:51:42,021 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:51:42,025 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:51:42,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:51:42 WrapperNode [2023-01-27 18:51:42,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:51:42,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:51:42,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:51:42,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:51:42,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:51:42" (1/1) ... [2023-01-27 18:51:42,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:51:42" (1/1) ... [2023-01-27 18:51:42,180 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 49, statements flattened = 639 [2023-01-27 18:51:42,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:51:42,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:51:42,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:51:42,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:51:42,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:51:42" (1/1) ... [2023-01-27 18:51:42,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:51:42" (1/1) ... [2023-01-27 18:51:42,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:51:42" (1/1) ... [2023-01-27 18:51:42,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:51:42" (1/1) ... [2023-01-27 18:51:42,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:51:42" (1/1) ... [2023-01-27 18:51:42,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:51:42" (1/1) ... [2023-01-27 18:51:42,241 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:51:42" (1/1) ... [2023-01-27 18:51:42,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:51:42" (1/1) ... [2023-01-27 18:51:42,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:51:42,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:51:42,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:51:42,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:51:42,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:51:42" (1/1) ... [2023-01-27 18:51:42,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:51:42,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:51:42,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-27 18:51:42,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-27 18:51:42,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 18:51:42,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 18:51:42,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:51:42,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-27 18:51:42,341 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-01-27 18:51:42,341 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-01-27 18:51:42,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:51:42,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:51:42,341 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2023-01-27 18:51:42,341 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2023-01-27 18:51:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-27 18:51:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:51:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-27 18:51:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:51:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:51:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-27 18:51:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:51:42,343 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 18:51:42,713 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:51:42,715 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:51:43,215 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:51:43,222 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:51:43,222 INFO L302 CfgBuilder]: Removed 21 assume(true) statements. [2023-01-27 18:51:43,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:51:43 BoogieIcfgContainer [2023-01-27 18:51:43,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:51:43,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:51:43,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:51:43,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:51:43,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:51:38" (1/3) ... [2023-01-27 18:51:43,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0626f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:51:43, skipping insertion in model container [2023-01-27 18:51:43,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:51:42" (2/3) ... [2023-01-27 18:51:43,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0626f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:51:43, skipping insertion in model container [2023-01-27 18:51:43,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:51:43" (3/3) ... [2023-01-27 18:51:43,228 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2023-01-27 18:51:43,239 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:51:43,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-01-27 18:51:43,239 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:51:43,297 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 18:51:43,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 659 places, 695 transitions, 1406 flow [2023-01-27 18:51:43,497 INFO L130 PetriNetUnfolder]: 43/693 cut-off events. [2023-01-27 18:51:43,497 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:51:43,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 693 events. 43/693 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 843 event pairs, 0 based on Foata normal form. 0/647 useless extension candidates. Maximal degree in co-relation 646. Up to 9 conditions per place. [2023-01-27 18:51:43,504 INFO L82 GeneralOperation]: Start removeDead. Operand has 659 places, 695 transitions, 1406 flow [2023-01-27 18:51:43,512 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 649 places, 685 transitions, 1379 flow [2023-01-27 18:51:43,515 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:51:43,530 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 649 places, 685 transitions, 1379 flow [2023-01-27 18:51:43,532 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 649 places, 685 transitions, 1379 flow [2023-01-27 18:51:43,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 649 places, 685 transitions, 1379 flow [2023-01-27 18:51:43,605 INFO L130 PetriNetUnfolder]: 43/685 cut-off events. [2023-01-27 18:51:43,605 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 18:51:43,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 685 events. 43/685 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 790 event pairs, 0 based on Foata normal form. 0/639 useless extension candidates. Maximal degree in co-relation 646. Up to 9 conditions per place. [2023-01-27 18:51:43,608 INFO L119 LiptonReduction]: Number of co-enabled transitions 4794 [2023-01-27 18:55:23,035 WARN L222 SmtUtils]: Spent 2.35m on a formula simplification. DAG size of input: 661 DAG size of output: 659 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:55:54,409 WARN L222 SmtUtils]: Spent 31.35s on a formula simplification that was a NOOP. DAG size: 581 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:58:13,511 WARN L222 SmtUtils]: Spent 2.32m on a formula simplification. DAG size of input: 664 DAG size of output: 662 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:59:12,263 WARN L222 SmtUtils]: Spent 58.74s on a formula simplification that was a NOOP. DAG size: 584 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:59:25,552 INFO L134 LiptonReduction]: Checked pairs total: 4986 [2023-01-27 18:59:25,552 INFO L136 LiptonReduction]: Total number of compositions: 759 [2023-01-27 18:59:25,567 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:59:25,571 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;@18274b1b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:59:25,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-01-27 18:59:25,578 INFO L130 PetriNetUnfolder]: 6/12 cut-off events. [2023-01-27 18:59:25,578 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:59:25,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:59:25,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-27 18:59:25,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:59:25,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:59:25,583 INFO L85 PathProgramCache]: Analyzing trace with hash 2456996, now seen corresponding path program 1 times [2023-01-27 18:59:25,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:59:25,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473278052] [2023-01-27 18:59:25,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:59:25,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:59:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:59:25,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:59:25,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:59:25,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473278052] [2023-01-27 18:59:25,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473278052] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:59:25,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:59:25,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 18:59:25,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280607631] [2023-01-27 18:59:25,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:59:25,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-27 18:59:25,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:59:25,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-27 18:59:25,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-27 18:59:25,932 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 663 out of 1454 [2023-01-27 18:59:25,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 47 transitions, 103 flow. Second operand has 2 states, 2 states have (on average 664.5) internal successors, (1329), 2 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:25,936 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:59:25,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 663 of 1454 [2023-01-27 18:59:25,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:59:26,131 INFO L130 PetriNetUnfolder]: 79/159 cut-off events. [2023-01-27 18:59:26,131 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-01-27 18:59:26,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 159 events. 79/159 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 464 event pairs, 69 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 256. Up to 160 conditions per place. [2023-01-27 18:59:26,134 INFO L137 encePairwiseOnDemand]: 1443/1454 looper letters, 36 selfloop transitions, 0 changer transitions 0/36 dead transitions. [2023-01-27 18:59:26,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 153 flow [2023-01-27 18:59:26,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-27 18:59:26,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-27 18:59:26,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1373 transitions. [2023-01-27 18:59:26,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47214580467675377 [2023-01-27 18:59:26,153 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1373 transitions. [2023-01-27 18:59:26,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1373 transitions. [2023-01-27 18:59:26,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:59:26,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1373 transitions. [2023-01-27 18:59:26,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 686.5) internal successors, (1373), 2 states have internal predecessors, (1373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:26,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1454.0) internal successors, (4362), 3 states have internal predecessors, (4362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:26,170 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1454.0) internal successors, (4362), 3 states have internal predecessors, (4362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:26,171 INFO L175 Difference]: Start difference. First operand has 34 places, 47 transitions, 103 flow. Second operand 2 states and 1373 transitions. [2023-01-27 18:59:26,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 153 flow [2023-01-27 18:59:26,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 36 transitions, 148 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 18:59:26,175 INFO L231 Difference]: Finished difference. Result has 31 places, 36 transitions, 76 flow [2023-01-27 18:59:26,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1454, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=76, PETRI_PLACES=31, PETRI_TRANSITIONS=36} [2023-01-27 18:59:26,180 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2023-01-27 18:59:26,180 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 36 transitions, 76 flow [2023-01-27 18:59:26,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 664.5) internal successors, (1329), 2 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:26,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:59:26,187 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-27 18:59:26,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:59:26,187 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:59:26,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:59:26,193 INFO L85 PathProgramCache]: Analyzing trace with hash 204190383, now seen corresponding path program 1 times [2023-01-27 18:59:26,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:59:26,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272771548] [2023-01-27 18:59:26,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:59:26,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:59:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:59:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:59:26,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:59:26,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272771548] [2023-01-27 18:59:26,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272771548] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:59:26,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:59:26,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:59:26,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698313005] [2023-01-27 18:59:26,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:59:26,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:59:26,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:59:26,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:59:26,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:59:26,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 632 out of 1454 [2023-01-27 18:59:26,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 36 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 634.0) internal successors, (1902), 3 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:26,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:59:26,807 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 632 of 1454 [2023-01-27 18:59:26,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:59:27,114 INFO L130 PetriNetUnfolder]: 108/222 cut-off events. [2023-01-27 18:59:27,114 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 18:59:27,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 222 events. 108/222 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 822 event pairs, 41 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 463. Up to 137 conditions per place. [2023-01-27 18:59:27,115 INFO L137 encePairwiseOnDemand]: 1450/1454 looper letters, 42 selfloop transitions, 3 changer transitions 1/46 dead transitions. [2023-01-27 18:59:27,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 46 transitions, 191 flow [2023-01-27 18:59:27,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:59:27,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:59:27,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1943 transitions. [2023-01-27 18:59:27,119 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4454378725355342 [2023-01-27 18:59:27,119 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1943 transitions. [2023-01-27 18:59:27,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1943 transitions. [2023-01-27 18:59:27,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:59:27,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1943 transitions. [2023-01-27 18:59:27,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 647.6666666666666) internal successors, (1943), 3 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:27,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1454.0) internal successors, (5816), 4 states have internal predecessors, (5816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:27,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1454.0) internal successors, (5816), 4 states have internal predecessors, (5816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:27,129 INFO L175 Difference]: Start difference. First operand has 31 places, 36 transitions, 76 flow. Second operand 3 states and 1943 transitions. [2023-01-27 18:59:27,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 46 transitions, 191 flow [2023-01-27 18:59:27,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 46 transitions, 191 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-27 18:59:27,131 INFO L231 Difference]: Finished difference. Result has 35 places, 38 transitions, 98 flow [2023-01-27 18:59:27,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1454, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=35, PETRI_TRANSITIONS=38} [2023-01-27 18:59:27,131 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2023-01-27 18:59:27,132 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 38 transitions, 98 flow [2023-01-27 18:59:27,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 634.0) internal successors, (1902), 3 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:27,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:59:27,133 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:59:27,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:59:27,134 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:59:27,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:59:27,135 INFO L85 PathProgramCache]: Analyzing trace with hash 2034936646, now seen corresponding path program 1 times [2023-01-27 18:59:27,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:59:27,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57627545] [2023-01-27 18:59:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:59:27,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:59:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:59:27,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:59:27,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:59:27,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57627545] [2023-01-27 18:59:27,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57627545] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:59:27,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:59:27,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-27 18:59:27,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956085224] [2023-01-27 18:59:27,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:59:27,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:59:27,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:59:27,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:59:27,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-01-27 18:59:27,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 598 out of 1454 [2023-01-27 18:59:27,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 38 transitions, 98 flow. Second operand has 7 states, 7 states have (on average 599.0) internal successors, (4193), 7 states have internal predecessors, (4193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:27,852 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:59:27,852 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 598 of 1454 [2023-01-27 18:59:27,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:59:28,765 INFO L130 PetriNetUnfolder]: 97/202 cut-off events. [2023-01-27 18:59:28,765 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-27 18:59:28,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 202 events. 97/202 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 742 event pairs, 27 based on Foata normal form. 9/181 useless extension candidates. Maximal degree in co-relation 477. Up to 145 conditions per place. [2023-01-27 18:59:28,766 INFO L137 encePairwiseOnDemand]: 1443/1454 looper letters, 35 selfloop transitions, 10 changer transitions 3/48 dead transitions. [2023-01-27 18:59:28,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 218 flow [2023-01-27 18:59:28,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 18:59:28,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 18:59:28,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3636 transitions. [2023-01-27 18:59:28,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4167812929848693 [2023-01-27 18:59:28,774 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3636 transitions. [2023-01-27 18:59:28,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3636 transitions. [2023-01-27 18:59:28,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:59:28,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3636 transitions. [2023-01-27 18:59:28,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 606.0) internal successors, (3636), 6 states have internal predecessors, (3636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:28,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1454.0) internal successors, (10178), 7 states have internal predecessors, (10178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:28,793 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1454.0) internal successors, (10178), 7 states have internal predecessors, (10178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:28,794 INFO L175 Difference]: Start difference. First operand has 35 places, 38 transitions, 98 flow. Second operand 6 states and 3636 transitions. [2023-01-27 18:59:28,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 218 flow [2023-01-27 18:59:28,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 212 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:59:28,795 INFO L231 Difference]: Finished difference. Result has 37 places, 36 transitions, 106 flow [2023-01-27 18:59:28,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1454, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=106, PETRI_PLACES=37, PETRI_TRANSITIONS=36} [2023-01-27 18:59:28,796 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-01-27 18:59:28,796 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 36 transitions, 106 flow [2023-01-27 18:59:28,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 599.0) internal successors, (4193), 7 states have internal predecessors, (4193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:28,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:59:28,798 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:59:28,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 18:59:28,798 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:59:28,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:59:28,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2031175926, now seen corresponding path program 1 times [2023-01-27 18:59:28,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:59:28,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15988931] [2023-01-27 18:59:28,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:59:28,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:59:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:59:29,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:59:29,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:59:29,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15988931] [2023-01-27 18:59:29,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15988931] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:59:29,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:59:29,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:59:29,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496250445] [2023-01-27 18:59:29,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:59:29,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:59:29,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:59:29,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:59:29,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:59:29,405 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 641 out of 1454 [2023-01-27 18:59:29,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 36 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 643.3333333333334) internal successors, (1930), 3 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:29,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:59:29,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 641 of 1454 [2023-01-27 18:59:29,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:59:29,651 INFO L130 PetriNetUnfolder]: 73/159 cut-off events. [2023-01-27 18:59:29,651 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-01-27 18:59:29,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 159 events. 73/159 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 488 event pairs, 56 based on Foata normal form. 1/152 useless extension candidates. Maximal degree in co-relation 387. Up to 159 conditions per place. [2023-01-27 18:59:29,652 INFO L137 encePairwiseOnDemand]: 1450/1454 looper letters, 35 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-01-27 18:59:29,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 37 transitions, 182 flow [2023-01-27 18:59:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:59:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:59:29,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1960 transitions. [2023-01-27 18:59:29,656 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4493351673544246 [2023-01-27 18:59:29,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1960 transitions. [2023-01-27 18:59:29,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1960 transitions. [2023-01-27 18:59:29,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:59:29,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1960 transitions. [2023-01-27 18:59:29,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 653.3333333333334) internal successors, (1960), 3 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:29,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1454.0) internal successors, (5816), 4 states have internal predecessors, (5816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:29,664 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1454.0) internal successors, (5816), 4 states have internal predecessors, (5816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:29,664 INFO L175 Difference]: Start difference. First operand has 37 places, 36 transitions, 106 flow. Second operand 3 states and 1960 transitions. [2023-01-27 18:59:29,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 37 transitions, 182 flow [2023-01-27 18:59:29,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 37 transitions, 163 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-27 18:59:29,666 INFO L231 Difference]: Finished difference. Result has 35 places, 37 transitions, 101 flow [2023-01-27 18:59:29,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1454, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=35, PETRI_TRANSITIONS=37} [2023-01-27 18:59:29,667 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2023-01-27 18:59:29,667 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 37 transitions, 101 flow [2023-01-27 18:59:29,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 643.3333333333334) internal successors, (1930), 3 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:29,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:59:29,668 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:59:29,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 18:59:29,669 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:59:29,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:59:29,669 INFO L85 PathProgramCache]: Analyzing trace with hash 346016578, now seen corresponding path program 1 times [2023-01-27 18:59:29,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:59:29,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084923140] [2023-01-27 18:59:29,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:59:29,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:59:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:59:30,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:59:30,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:59:30,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084923140] [2023-01-27 18:59:30,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084923140] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:59:30,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738935394] [2023-01-27 18:59:30,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:59:30,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:59:30,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:59:30,273 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:59:30,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-27 18:59:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:59:30,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-27 18:59:30,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:59:30,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-27 18:59:30,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:59:30,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738935394] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:59:30,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:59:30,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-01-27 18:59:30,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123868084] [2023-01-27 18:59:30,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:59:30,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:59:30,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:59:30,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:59:30,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:59:30,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 616 out of 1454 [2023-01-27 18:59:30,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 37 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 618.6666666666666) internal successors, (1856), 3 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:30,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:59:30,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 616 of 1454 [2023-01-27 18:59:30,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:59:30,938 INFO L130 PetriNetUnfolder]: 59/141 cut-off events. [2023-01-27 18:59:30,938 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-01-27 18:59:30,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 141 events. 59/141 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 457 event pairs, 24 based on Foata normal form. 20/151 useless extension candidates. Maximal degree in co-relation 337. Up to 100 conditions per place. [2023-01-27 18:59:30,939 INFO L137 encePairwiseOnDemand]: 1451/1454 looper letters, 35 selfloop transitions, 2 changer transitions 8/45 dead transitions. [2023-01-27 18:59:30,939 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 45 transitions, 215 flow [2023-01-27 18:59:30,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:59:30,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:59:30,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1890 transitions. [2023-01-27 18:59:30,942 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4332874828060523 [2023-01-27 18:59:30,942 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1890 transitions. [2023-01-27 18:59:30,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1890 transitions. [2023-01-27 18:59:30,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:59:30,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1890 transitions. [2023-01-27 18:59:30,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 630.0) internal successors, (1890), 3 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:30,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1454.0) internal successors, (5816), 4 states have internal predecessors, (5816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:30,950 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1454.0) internal successors, (5816), 4 states have internal predecessors, (5816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:30,950 INFO L175 Difference]: Start difference. First operand has 35 places, 37 transitions, 101 flow. Second operand 3 states and 1890 transitions. [2023-01-27 18:59:30,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 45 transitions, 215 flow [2023-01-27 18:59:30,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 45 transitions, 211 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-27 18:59:30,951 INFO L231 Difference]: Finished difference. Result has 37 places, 35 transitions, 97 flow [2023-01-27 18:59:30,952 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1454, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=37, PETRI_TRANSITIONS=35} [2023-01-27 18:59:30,952 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-01-27 18:59:30,952 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 35 transitions, 97 flow [2023-01-27 18:59:30,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 618.6666666666666) internal successors, (1856), 3 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:30,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:59:30,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:59:30,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-27 18:59:31,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:59:31,161 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-27 18:59:31,161 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:59:31,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1187781155, now seen corresponding path program 1 times [2023-01-27 18:59:31,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:59:31,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259990638] [2023-01-27 18:59:31,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:59:31,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:59:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:59:31,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:59:31,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:59:31,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259990638] [2023-01-27 18:59:31,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259990638] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:59:31,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412759709] [2023-01-27 18:59:31,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:59:31,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:59:31,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:59:31,563 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:59:31,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-27 18:59:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:59:32,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 36 conjunts are in the unsatisfiable core [2023-01-27 18:59:32,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:59:32,109 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-27 18:59:32,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2023-01-27 18:59:32,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 16 treesize of output 18 [2023-01-27 18:59:32,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-27 18:59:32,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:59:32,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412759709] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:59:32,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:59:32,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2023-01-27 18:59:32,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645583200] [2023-01-27 18:59:32,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:59:32,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-27 18:59:32,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:59:32,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-27 18:59:32,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:59:32,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 609 out of 1454 [2023-01-27 18:59:32,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 97 flow. Second operand has 6 states, 6 states have (on average 610.6666666666666) internal successors, (3664), 6 states have internal predecessors, (3664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:32,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:59:32,395 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 609 of 1454 [2023-01-27 18:59:32,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:59:32,836 INFO L130 PetriNetUnfolder]: 20/53 cut-off events. [2023-01-27 18:59:32,836 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-01-27 18:59:32,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 53 events. 20/53 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 0 based on Foata normal form. 8/51 useless extension candidates. Maximal degree in co-relation 131. Up to 27 conditions per place. [2023-01-27 18:59:32,837 INFO L137 encePairwiseOnDemand]: 1450/1454 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2023-01-27 18:59:32,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 41 transitions, 196 flow [2023-01-27 18:59:32,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 18:59:32,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 18:59:32,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3695 transitions. [2023-01-27 18:59:32,842 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4235442457588262 [2023-01-27 18:59:32,842 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3695 transitions. [2023-01-27 18:59:32,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3695 transitions. [2023-01-27 18:59:32,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:59:32,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3695 transitions. [2023-01-27 18:59:32,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 615.8333333333334) internal successors, (3695), 6 states have internal predecessors, (3695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:32,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1454.0) internal successors, (10178), 7 states have internal predecessors, (10178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:32,857 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1454.0) internal successors, (10178), 7 states have internal predecessors, (10178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:32,857 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 97 flow. Second operand 6 states and 3695 transitions. [2023-01-27 18:59:32,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 41 transitions, 196 flow [2023-01-27 18:59:32,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 182 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-01-27 18:59:32,858 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-01-27 18:59:32,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1454, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2023-01-27 18:59:32,859 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-01-27 18:59:32,859 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-01-27 18:59:32,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 610.6666666666666) internal successors, (3664), 6 states have internal predecessors, (3664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:59:32,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-01-27 18:59:32,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-01-27 18:59:32,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-01-27 18:59:32,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-01-27 18:59:32,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-01-27 18:59:32,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-01-27 18:59:32,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-01-27 18:59:32,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-27 18:59:33,071 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,SelfDestructingSolverStorable5 [2023-01-27 18:59:33,071 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-01-27 18:59:33,075 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 18:59:33,075 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 18:59:33,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 06:59:33 BasicIcfg [2023-01-27 18:59:33,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 18:59:33,077 INFO L158 Benchmark]: Toolchain (without parser) took 474411.19ms. Allocated memory was 339.7MB in the beginning and 838.9MB in the end (delta: 499.1MB). Free memory was 285.9MB in the beginning and 438.0MB in the end (delta: -152.1MB). Peak memory consumption was 348.7MB. Max. memory is 16.0GB. [2023-01-27 18:59:33,077 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 213.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:59:33,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3358.25ms. Allocated memory was 339.7MB in the beginning and 471.9MB in the end (delta: 132.1MB). Free memory was 285.9MB in the beginning and 357.3MB in the end (delta: -71.4MB). Peak memory consumption was 127.9MB. Max. memory is 16.0GB. [2023-01-27 18:59:33,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 154.17ms. Allocated memory is still 471.9MB. Free memory was 357.3MB in the beginning and 346.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-27 18:59:33,078 INFO L158 Benchmark]: Boogie Preprocessor took 76.25ms. Allocated memory is still 471.9MB. Free memory was 346.8MB in the beginning and 340.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-01-27 18:59:33,078 INFO L158 Benchmark]: RCFGBuilder took 965.67ms. Allocated memory is still 471.9MB. Free memory was 340.5MB in the beginning and 393.6MB in the end (delta: -53.1MB). Peak memory consumption was 54.9MB. Max. memory is 16.0GB. [2023-01-27 18:59:33,078 INFO L158 Benchmark]: TraceAbstraction took 469852.16ms. Allocated memory was 471.9MB in the beginning and 838.9MB in the end (delta: 367.0MB). Free memory was 393.6MB in the beginning and 438.0MB in the end (delta: -44.4MB). Peak memory consumption was 323.7MB. Max. memory is 16.0GB. [2023-01-27 18:59:33,079 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 213.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 3358.25ms. Allocated memory was 339.7MB in the beginning and 471.9MB in the end (delta: 132.1MB). Free memory was 285.9MB in the beginning and 357.3MB in the end (delta: -71.4MB). Peak memory consumption was 127.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 154.17ms. Allocated memory is still 471.9MB. Free memory was 357.3MB in the beginning and 346.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Preprocessor took 76.25ms. Allocated memory is still 471.9MB. Free memory was 346.8MB in the beginning and 340.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * RCFGBuilder took 965.67ms. Allocated memory is still 471.9MB. Free memory was 340.5MB in the beginning and 393.6MB in the end (delta: -53.1MB). Peak memory consumption was 54.9MB. Max. memory is 16.0GB. * TraceAbstraction took 469852.16ms. Allocated memory was 471.9MB in the beginning and 838.9MB in the end (delta: 367.0MB). Free memory was 393.6MB in the beginning and 438.0MB in the end (delta: -44.4MB). Peak memory consumption was 323.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 462.0s, 649 PlacesBefore, 34 PlacesAfterwards, 685 TransitionsBefore, 47 TransitionsAfterwards, 4794 CoEnabledTransitionPairs, 11 FixpointIterations, 559 TrivialSequentialCompositions, 86 ConcurrentSequentialCompositions, 82 TrivialYvCompositions, 9 ConcurrentYvCompositions, 23 ChoiceCompositions, 759 TotalNumberOfCompositions, 4986 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3928, independent: 3799, independent conditional: 0, independent unconditional: 3799, dependent: 129, dependent conditional: 0, dependent unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2595, independent: 2567, independent conditional: 0, independent unconditional: 2567, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3928, independent: 1232, independent conditional: 0, independent unconditional: 1232, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 2595, unknown conditional: 0, unknown unconditional: 2595] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 736 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 469.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 462.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 130 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 130 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 484 IncrementalHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 0 mSDtfsCounter, 484 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=3, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 259 SizeOfPredicates, 46 NumberOfNonLiveVariables, 2224 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-27 18:59:33,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...