/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_change.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:50:28,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:50:28,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:50:28,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:50:28,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:50:28,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:50:28,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:50:28,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:50:28,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:50:28,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:50:28,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:50:28,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:50:28,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:50:28,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:50:28,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:50:28,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:50:28,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:50:28,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:50:28,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:50:28,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:50:28,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:50:28,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:50:28,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:50:28,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:50:28,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 18:50:28,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 18:50:28,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 18:50:28,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 18:50:28,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 18:50:28,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 18:50:28,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 18:50:28,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 18:50:28,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 18:50:28,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 18:50:28,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 18:50:28,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 18:50:28,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 18:50:28,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 18:50:28,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:50:28,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:50:28,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:50:28,689 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 18:50:28,718 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:50:28,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:50:28,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:50:28,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:50:28,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:50:28,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:50:28,720 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:50:28,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:50:28,720 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:50:28,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:50:28,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:50:28,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:50:28,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:50:28,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:50:28,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:50:28,722 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:50:28,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:50:28,722 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:50:28,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:50:28,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:50:28,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:50:28,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:50:28,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:50:28,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:50:28,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:50:28,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:50:28,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:50:28,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:50:28,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:50:28,723 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:50:28,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:50:28,724 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:50:28,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:50:28,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:50:28,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:50:28,991 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:50:28,991 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:50:28,992 INFO L432 ainManager$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_change.i [2023-01-27 18:50:30,251 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:50:30,661 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:50:30,662 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2023-01-27 18:50:30,698 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b9945f62/7e6d7efcde6f400482d49b6ee4cf0060/FLAG7fdd45ba6 [2023-01-27 18:50:30,714 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b9945f62/7e6d7efcde6f400482d49b6ee4cf0060 [2023-01-27 18:50:30,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:50:30,718 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:50:30,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:50:30,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:50:30,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:50:30,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:50:30" (1/1) ... [2023-01-27 18:50:30,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b0cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:50:30, skipping insertion in model container [2023-01-27 18:50:30,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:50:30" (1/1) ... [2023-01-27 18:50:30,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:50:30,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:50:31,164 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_change.i[5469,5482] [2023-01-27 18:50:33,771 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:50:34,241 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:50:34,244 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:50:34,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:50:34,326 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:50:34,343 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_change.i[5469,5482] [2023-01-27 18:50:34,481 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:50:34,531 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:50:34,531 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:50:34,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:50:35,005 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:50:35,005 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:50:35,005 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:50:35,005 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:50:35,005 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:50:35,005 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:50:35,006 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:50:35,011 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:50:35,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:50:35 WrapperNode [2023-01-27 18:50:35,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:50:35,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:50:35,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:50:35,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:50:35,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:50:35" (1/1) ... [2023-01-27 18:50:35,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:50:35" (1/1) ... [2023-01-27 18:50:35,182 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 56, statements flattened = 737 [2023-01-27 18:50:35,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:50:35,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:50:35,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:50:35,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:50:35,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:50:35" (1/1) ... [2023-01-27 18:50:35,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:50:35" (1/1) ... [2023-01-27 18:50:35,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:50:35" (1/1) ... [2023-01-27 18:50:35,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:50:35" (1/1) ... [2023-01-27 18:50:35,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:50:35" (1/1) ... [2023-01-27 18:50:35,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:50:35" (1/1) ... [2023-01-27 18:50:35,263 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:50:35" (1/1) ... [2023-01-27 18:50:35,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:50:35" (1/1) ... [2023-01-27 18:50:35,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:50:35,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:50:35,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:50:35,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:50:35,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:50:35" (1/1) ... [2023-01-27 18:50:35,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:50:35,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:50:35,326 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 18:50:35,346 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 18:50:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 18:50:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 18:50:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:50:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-27 18:50:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-01-27 18:50:35,363 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-01-27 18:50:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:50:35,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:50:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2023-01-27 18:50:35,364 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2023-01-27 18:50:35,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-27 18:50:35,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:50:35,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-27 18:50:35,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:50:35,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:50:35,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-27 18:50:35,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:50:35,366 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 18:50:35,800 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:50:35,802 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:50:36,557 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:50:36,572 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:50:36,572 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2023-01-27 18:50:36,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:50:36 BoogieIcfgContainer [2023-01-27 18:50:36,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:50:36,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:50:36,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:50:36,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:50:36,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:50:30" (1/3) ... [2023-01-27 18:50:36,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794e7e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:50:36, skipping insertion in model container [2023-01-27 18:50:36,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:50:35" (2/3) ... [2023-01-27 18:50:36,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794e7e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:50:36, skipping insertion in model container [2023-01-27 18:50:36,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:50:36" (3/3) ... [2023-01-27 18:50:36,582 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2023-01-27 18:50:36,597 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:50:36,597 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-01-27 18:50:36,597 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:50:36,738 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 18:50:36,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 756 places, 805 transitions, 1626 flow [2023-01-27 18:50:37,054 INFO L130 PetriNetUnfolder]: 56/803 cut-off events. [2023-01-27 18:50:37,054 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:50:37,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 812 conditions, 803 events. 56/803 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1170 event pairs, 0 based on Foata normal form. 0/743 useless extension candidates. Maximal degree in co-relation 646. Up to 9 conditions per place. [2023-01-27 18:50:37,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 756 places, 805 transitions, 1626 flow [2023-01-27 18:50:37,073 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 746 places, 795 transitions, 1599 flow [2023-01-27 18:50:37,076 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:50:37,084 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 746 places, 795 transitions, 1599 flow [2023-01-27 18:50:37,086 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 746 places, 795 transitions, 1599 flow [2023-01-27 18:50:37,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 746 places, 795 transitions, 1599 flow [2023-01-27 18:50:37,223 INFO L130 PetriNetUnfolder]: 56/795 cut-off events. [2023-01-27 18:50:37,223 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 18:50:37,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 795 events. 56/795 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1105 event pairs, 0 based on Foata normal form. 0/735 useless extension candidates. Maximal degree in co-relation 646. Up to 9 conditions per place. [2023-01-27 18:50:37,234 INFO L119 LiptonReduction]: Number of co-enabled transitions 17334 [2023-01-27 18:52:06,282 WARN L222 SmtUtils]: Spent 13.62s on a formula simplification. DAG size of input: 292 DAG size of output: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:52:12,731 WARN L222 SmtUtils]: Spent 6.45s on a formula simplification that was a NOOP. DAG size: 285 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:52:26,467 WARN L222 SmtUtils]: Spent 13.73s on a formula simplification. DAG size of input: 298 DAG size of output: 293 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:52:32,880 WARN L222 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 288 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:54:55,786 WARN L222 SmtUtils]: Spent 2.29m on a formula simplification. DAG size of input: 669 DAG size of output: 667 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:55:58,151 WARN L222 SmtUtils]: Spent 1.04m 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 18:56:59,005 WARN L222 SmtUtils]: Spent 1.01m on a formula simplification. DAG size of input: 672 DAG size of output: 670 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:57:24,042 WARN L222 SmtUtils]: Spent 25.01s 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 18:57:30,778 INFO L134 LiptonReduction]: Checked pairs total: 16655 [2023-01-27 18:57:30,779 INFO L136 LiptonReduction]: Total number of compositions: 878 [2023-01-27 18:57:30,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:57:30,796 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;@18be366b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:57:30,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-01-27 18:57:30,806 INFO L130 PetriNetUnfolder]: 4/9 cut-off events. [2023-01-27 18:57:30,806 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:57:30,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:57:30,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-27 18:57:30,807 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:57:30,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:57:30,812 INFO L85 PathProgramCache]: Analyzing trace with hash 2965003, now seen corresponding path program 1 times [2023-01-27 18:57:30,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:57:30,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090420633] [2023-01-27 18:57:30,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:30,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:57:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:31,349 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 18:57:31,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:57:31,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090420633] [2023-01-27 18:57:31,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090420633] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:57:31,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:57:31,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 18:57:31,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292181901] [2023-01-27 18:57:31,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:57:31,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-27 18:57:31,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:57:31,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-27 18:57:31,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-27 18:57:31,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 765 out of 1683 [2023-01-27 18:57:31,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 59 transitions, 127 flow. Second operand has 2 states, 2 states have (on average 766.5) internal successors, (1533), 2 states have internal predecessors, (1533), 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 18:57:31,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:57:31,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 765 of 1683 [2023-01-27 18:57:31,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:57:31,942 INFO L130 PetriNetUnfolder]: 223/415 cut-off events. [2023-01-27 18:57:31,942 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2023-01-27 18:57:31,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 860 conditions, 415 events. 223/415 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1376 event pairs, 213 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 704. Up to 416 conditions per place. [2023-01-27 18:57:31,946 INFO L137 encePairwiseOnDemand]: 1668/1683 looper letters, 44 selfloop transitions, 0 changer transitions 0/44 dead transitions. [2023-01-27 18:57:31,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 44 transitions, 185 flow [2023-01-27 18:57:31,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-27 18:57:31,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-27 18:57:31,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1589 transitions. [2023-01-27 18:57:31,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4720736779560309 [2023-01-27 18:57:31,964 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1589 transitions. [2023-01-27 18:57:31,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1589 transitions. [2023-01-27 18:57:31,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:57:31,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1589 transitions. [2023-01-27 18:57:31,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 794.5) internal successors, (1589), 2 states have internal predecessors, (1589), 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 18:57:31,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1683.0) internal successors, (5049), 3 states have internal predecessors, (5049), 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 18:57:31,988 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1683.0) internal successors, (5049), 3 states have internal predecessors, (5049), 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 18:57:31,990 INFO L175 Difference]: Start difference. First operand has 42 places, 59 transitions, 127 flow. Second operand 2 states and 1589 transitions. [2023-01-27 18:57:31,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 44 transitions, 185 flow [2023-01-27 18:57:31,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 44 transitions, 180 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 18:57:31,999 INFO L231 Difference]: Finished difference. Result has 39 places, 44 transitions, 92 flow [2023-01-27 18:57:32,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1683, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=92, PETRI_PLACES=39, PETRI_TRANSITIONS=44} [2023-01-27 18:57:32,009 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2023-01-27 18:57:32,009 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 44 transitions, 92 flow [2023-01-27 18:57:32,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 766.5) internal successors, (1533), 2 states have internal predecessors, (1533), 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 18:57:32,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:57:32,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-27 18:57:32,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:57:32,011 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:57:32,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:57:32,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1838204332, now seen corresponding path program 1 times [2023-01-27 18:57:32,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:57:32,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641918268] [2023-01-27 18:57:32,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:32,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:57:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:32,784 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 18:57:32,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:57:32,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641918268] [2023-01-27 18:57:32,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641918268] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:57:32,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:57:32,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:57:32,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019317670] [2023-01-27 18:57:32,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:57:32,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:57:32,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:57:32,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:57:32,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:57:32,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 733 out of 1683 [2023-01-27 18:57:32,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 44 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 735.0) internal successors, (2205), 3 states have internal predecessors, (2205), 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 18:57:32,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:57:32,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 733 of 1683 [2023-01-27 18:57:32,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:57:33,454 INFO L130 PetriNetUnfolder]: 324/614 cut-off events. [2023-01-27 18:57:33,455 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-01-27 18:57:33,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1250 conditions, 614 events. 324/614 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2643 event pairs, 129 based on Foata normal form. 0/535 useless extension candidates. Maximal degree in co-relation 1247. Up to 369 conditions per place. [2023-01-27 18:57:33,458 INFO L137 encePairwiseOnDemand]: 1678/1683 looper letters, 57 selfloop transitions, 4 changer transitions 1/62 dead transitions. [2023-01-27 18:57:33,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 62 transitions, 255 flow [2023-01-27 18:57:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:57:33,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:57:33,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2262 transitions. [2023-01-27 18:57:33,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44800950683303625 [2023-01-27 18:57:33,464 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2262 transitions. [2023-01-27 18:57:33,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2262 transitions. [2023-01-27 18:57:33,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:57:33,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2262 transitions. [2023-01-27 18:57:33,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 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 18:57:33,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1683.0) internal successors, (6732), 4 states have internal predecessors, (6732), 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 18:57:33,481 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1683.0) internal successors, (6732), 4 states have internal predecessors, (6732), 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 18:57:33,481 INFO L175 Difference]: Start difference. First operand has 39 places, 44 transitions, 92 flow. Second operand 3 states and 2262 transitions. [2023-01-27 18:57:33,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 62 transitions, 255 flow [2023-01-27 18:57:33,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 62 transitions, 255 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-27 18:57:33,483 INFO L231 Difference]: Finished difference. Result has 43 places, 47 transitions, 122 flow [2023-01-27 18:57:33,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1683, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=43, PETRI_TRANSITIONS=47} [2023-01-27 18:57:33,484 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 1 predicate places. [2023-01-27 18:57:33,485 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 47 transitions, 122 flow [2023-01-27 18:57:33,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 735.0) internal successors, (2205), 3 states have internal predecessors, (2205), 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 18:57:33,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:57:33,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:57:33,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:57:33,487 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:57:33,489 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:57:33,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1149757591, now seen corresponding path program 1 times [2023-01-27 18:57:33,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:57:33,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013518565] [2023-01-27 18:57:33,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:33,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:57:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:34,431 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 18:57:34,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:57:34,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013518565] [2023-01-27 18:57:34,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013518565] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:57:34,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:57:34,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-27 18:57:34,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121507726] [2023-01-27 18:57:34,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:57:34,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:57:34,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:57:34,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:57:34,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-01-27 18:57:34,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 699 out of 1683 [2023-01-27 18:57:34,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 47 transitions, 122 flow. Second operand has 7 states, 7 states have (on average 700.0) internal successors, (4900), 7 states have internal predecessors, (4900), 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 18:57:34,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:57:34,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 699 of 1683 [2023-01-27 18:57:34,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:57:35,899 INFO L130 PetriNetUnfolder]: 296/567 cut-off events. [2023-01-27 18:57:35,900 INFO L131 PetriNetUnfolder]: For 146/146 co-relation queries the response was YES. [2023-01-27 18:57:35,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1326 conditions, 567 events. 296/567 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2472 event pairs, 74 based on Foata normal form. 19/534 useless extension candidates. Maximal degree in co-relation 1321. Up to 380 conditions per place. [2023-01-27 18:57:35,903 INFO L137 encePairwiseOnDemand]: 1670/1683 looper letters, 63 selfloop transitions, 13 changer transitions 2/78 dead transitions. [2023-01-27 18:57:35,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 78 transitions, 355 flow [2023-01-27 18:57:35,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 18:57:35,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 18:57:35,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4271 transitions. [2023-01-27 18:57:35,913 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42295504060209943 [2023-01-27 18:57:35,913 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4271 transitions. [2023-01-27 18:57:35,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4271 transitions. [2023-01-27 18:57:35,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:57:35,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4271 transitions. [2023-01-27 18:57:35,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 711.8333333333334) internal successors, (4271), 6 states have internal predecessors, (4271), 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 18:57:35,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1683.0) internal successors, (11781), 7 states have internal predecessors, (11781), 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 18:57:35,944 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1683.0) internal successors, (11781), 7 states have internal predecessors, (11781), 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 18:57:35,944 INFO L175 Difference]: Start difference. First operand has 43 places, 47 transitions, 122 flow. Second operand 6 states and 4271 transitions. [2023-01-27 18:57:35,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 78 transitions, 355 flow [2023-01-27 18:57:35,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 78 transitions, 345 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:57:35,950 INFO L231 Difference]: Finished difference. Result has 48 places, 49 transitions, 163 flow [2023-01-27 18:57:35,950 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1683, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=163, PETRI_PLACES=48, PETRI_TRANSITIONS=49} [2023-01-27 18:57:35,952 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2023-01-27 18:57:35,952 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 49 transitions, 163 flow [2023-01-27 18:57:35,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 700.0) internal successors, (4900), 7 states have internal predecessors, (4900), 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 18:57:35,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:57:35,954 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:57:35,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 18:57:35,954 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:57:35,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:57:35,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1154154743, now seen corresponding path program 1 times [2023-01-27 18:57:35,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:57:35,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022645695] [2023-01-27 18:57:35,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:35,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:57:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:36,637 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 18:57:36,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:57:36,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022645695] [2023-01-27 18:57:36,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022645695] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:57:36,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:57:36,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:57:36,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975402568] [2023-01-27 18:57:36,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:57:36,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:57:36,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:57:36,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:57:36,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:57:36,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 743 out of 1683 [2023-01-27 18:57:36,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 49 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 745.3333333333334) internal successors, (2236), 3 states have internal predecessors, (2236), 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 18:57:36,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:57:36,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 743 of 1683 [2023-01-27 18:57:36,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:57:37,069 INFO L130 PetriNetUnfolder]: 296/568 cut-off events. [2023-01-27 18:57:37,070 INFO L131 PetriNetUnfolder]: For 393/393 co-relation queries the response was YES. [2023-01-27 18:57:37,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1427 conditions, 568 events. 296/568 cut-off events. For 393/393 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2256 event pairs, 253 based on Foata normal form. 1/519 useless extension candidates. Maximal degree in co-relation 1420. Up to 568 conditions per place. [2023-01-27 18:57:37,073 INFO L137 encePairwiseOnDemand]: 1679/1683 looper letters, 48 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2023-01-27 18:57:37,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 50 transitions, 265 flow [2023-01-27 18:57:37,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:57:37,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:57:37,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2276 transitions. [2023-01-27 18:57:37,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4507823331352743 [2023-01-27 18:57:37,079 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2276 transitions. [2023-01-27 18:57:37,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2276 transitions. [2023-01-27 18:57:37,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:57:37,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2276 transitions. [2023-01-27 18:57:37,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 758.6666666666666) internal successors, (2276), 3 states have internal predecessors, (2276), 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 18:57:37,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1683.0) internal successors, (6732), 4 states have internal predecessors, (6732), 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 18:57:37,104 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1683.0) internal successors, (6732), 4 states have internal predecessors, (6732), 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 18:57:37,104 INFO L175 Difference]: Start difference. First operand has 48 places, 49 transitions, 163 flow. Second operand 3 states and 2276 transitions. [2023-01-27 18:57:37,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 50 transitions, 265 flow [2023-01-27 18:57:37,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 50 transitions, 248 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 18:57:37,107 INFO L231 Difference]: Finished difference. Result has 48 places, 50 transitions, 160 flow [2023-01-27 18:57:37,108 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1683, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=48, PETRI_TRANSITIONS=50} [2023-01-27 18:57:37,109 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2023-01-27 18:57:37,109 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 50 transitions, 160 flow [2023-01-27 18:57:37,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 745.3333333333334) internal successors, (2236), 3 states have internal predecessors, (2236), 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 18:57:37,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:57:37,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:57:37,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 18:57:37,111 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:57:37,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:57:37,111 INFO L85 PathProgramCache]: Analyzing trace with hash 849000484, now seen corresponding path program 1 times [2023-01-27 18:57:37,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:57:37,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659460832] [2023-01-27 18:57:37,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:37,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:57:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:37,862 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 18:57:37,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:57:37,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659460832] [2023-01-27 18:57:37,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659460832] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:57:37,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967991507] [2023-01-27 18:57:37,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:37,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:57:37,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:57:37,869 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 18:57:37,874 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 18:57:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:38,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-27 18:57:38,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:57:38,378 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 18:57:38,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:57:38,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967991507] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:57:38,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:57:38,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-01-27 18:57:38,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466800842] [2023-01-27 18:57:38,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:57:38,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:57:38,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:57:38,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:57:38,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:57:38,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 712 out of 1683 [2023-01-27 18:57:38,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 50 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 714.6666666666666) internal successors, (2144), 3 states have internal predecessors, (2144), 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 18:57:38,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:57:38,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 712 of 1683 [2023-01-27 18:57:38,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:57:39,580 INFO L130 PetriNetUnfolder]: 344/660 cut-off events. [2023-01-27 18:57:39,580 INFO L131 PetriNetUnfolder]: For 359/359 co-relation queries the response was YES. [2023-01-27 18:57:39,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1636 conditions, 660 events. 344/660 cut-off events. For 359/359 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2931 event pairs, 107 based on Foata normal form. 0/620 useless extension candidates. Maximal degree in co-relation 1628. Up to 367 conditions per place. [2023-01-27 18:57:39,584 INFO L137 encePairwiseOnDemand]: 1679/1683 looper letters, 60 selfloop transitions, 5 changer transitions 0/65 dead transitions. [2023-01-27 18:57:39,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 65 transitions, 341 flow [2023-01-27 18:57:39,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:57:39,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:57:39,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2195 transitions. [2023-01-27 18:57:39,589 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4347395523866112 [2023-01-27 18:57:39,589 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2195 transitions. [2023-01-27 18:57:39,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2195 transitions. [2023-01-27 18:57:39,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:57:39,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2195 transitions. [2023-01-27 18:57:39,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 731.6666666666666) internal successors, (2195), 3 states have internal predecessors, (2195), 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 18:57:39,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1683.0) internal successors, (6732), 4 states have internal predecessors, (6732), 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 18:57:39,601 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1683.0) internal successors, (6732), 4 states have internal predecessors, (6732), 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 18:57:39,601 INFO L175 Difference]: Start difference. First operand has 48 places, 50 transitions, 160 flow. Second operand 3 states and 2195 transitions. [2023-01-27 18:57:39,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 65 transitions, 341 flow [2023-01-27 18:57:39,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 65 transitions, 337 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-27 18:57:39,604 INFO L231 Difference]: Finished difference. Result has 50 places, 52 transitions, 193 flow [2023-01-27 18:57:39,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1683, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=50, PETRI_TRANSITIONS=52} [2023-01-27 18:57:39,605 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2023-01-27 18:57:39,605 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 52 transitions, 193 flow [2023-01-27 18:57:39,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 714.6666666666666) internal successors, (2144), 3 states have internal predecessors, (2144), 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 18:57:39,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:57:39,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:57:39,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-01-27 18:57:39,814 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 18:57:39,814 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:57:39,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:57:39,815 INFO L85 PathProgramCache]: Analyzing trace with hash -185362531, now seen corresponding path program 1 times [2023-01-27 18:57:39,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:57:39,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887240448] [2023-01-27 18:57:39,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:39,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:57:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:40,473 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 18:57:40,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:57:40,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887240448] [2023-01-27 18:57:40,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887240448] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:57:40,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002778693] [2023-01-27 18:57:40,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:40,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:57:40,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:57:40,475 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 18:57:40,477 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 18:57:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:41,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 36 conjunts are in the unsatisfiable core [2023-01-27 18:57:41,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:57:41,137 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-01-27 18:57:41,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 30 [2023-01-27 18:57:41,218 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 18:57:41,231 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 18:57:41,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:57:41,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002778693] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:57:41,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:57:41,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2023-01-27 18:57:41,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581179993] [2023-01-27 18:57:41,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:57:41,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-27 18:57:41,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:57:41,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-27 18:57:41,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:57:41,265 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 705 out of 1683 [2023-01-27 18:57:41,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 52 transitions, 193 flow. Second operand has 6 states, 6 states have (on average 706.6666666666666) internal successors, (4240), 6 states have internal predecessors, (4240), 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 18:57:41,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:57:41,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 705 of 1683 [2023-01-27 18:57:41,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:57:41,989 INFO L130 PetriNetUnfolder]: 335/643 cut-off events. [2023-01-27 18:57:41,990 INFO L131 PetriNetUnfolder]: For 530/530 co-relation queries the response was YES. [2023-01-27 18:57:41,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1705 conditions, 643 events. 335/643 cut-off events. For 530/530 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2807 event pairs, 70 based on Foata normal form. 8/619 useless extension candidates. Maximal degree in co-relation 1696. Up to 398 conditions per place. [2023-01-27 18:57:41,993 INFO L137 encePairwiseOnDemand]: 1678/1683 looper letters, 61 selfloop transitions, 10 changer transitions 1/72 dead transitions. [2023-01-27 18:57:41,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 72 transitions, 398 flow [2023-01-27 18:57:41,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 18:57:41,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 18:57:42,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4295 transitions. [2023-01-27 18:57:42,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42533174886116065 [2023-01-27 18:57:42,003 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4295 transitions. [2023-01-27 18:57:42,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4295 transitions. [2023-01-27 18:57:42,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:57:42,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4295 transitions. [2023-01-27 18:57:42,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 715.8333333333334) internal successors, (4295), 6 states have internal predecessors, (4295), 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 18:57:42,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1683.0) internal successors, (11781), 7 states have internal predecessors, (11781), 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 18:57:42,024 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1683.0) internal successors, (11781), 7 states have internal predecessors, (11781), 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 18:57:42,025 INFO L175 Difference]: Start difference. First operand has 50 places, 52 transitions, 193 flow. Second operand 6 states and 4295 transitions. [2023-01-27 18:57:42,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 72 transitions, 398 flow [2023-01-27 18:57:42,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 72 transitions, 391 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 18:57:42,029 INFO L231 Difference]: Finished difference. Result has 53 places, 54 transitions, 220 flow [2023-01-27 18:57:42,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1683, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=220, PETRI_PLACES=53, PETRI_TRANSITIONS=54} [2023-01-27 18:57:42,031 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places. [2023-01-27 18:57:42,031 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 54 transitions, 220 flow [2023-01-27 18:57:42,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 706.6666666666666) internal successors, (4240), 6 states have internal predecessors, (4240), 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 18:57:42,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:57:42,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:57:42,044 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 18:57:42,242 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 18:57:42,242 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:57:42,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:57:42,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1114404398, now seen corresponding path program 1 times [2023-01-27 18:57:42,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:57:42,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135228685] [2023-01-27 18:57:42,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:42,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:57:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:43,185 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 18:57:43,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:57:43,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135228685] [2023-01-27 18:57:43,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135228685] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:57:43,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592528756] [2023-01-27 18:57:43,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:43,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:57:43,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:57:43,189 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:57:43,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-27 18:57:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:44,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-27 18:57:44,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:57:44,420 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 18:57:44,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:57:44,667 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 18:57:44,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592528756] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:57:44,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:57:44,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-01-27 18:57:44,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488080999] [2023-01-27 18:57:44,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:57:44,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-27 18:57:44,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:57:44,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-27 18:57:44,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:57:44,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 743 out of 1683 [2023-01-27 18:57:44,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 54 transitions, 220 flow. Second operand has 8 states, 8 states have (on average 745.625) internal successors, (5965), 8 states have internal predecessors, (5965), 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 18:57:44,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:57:44,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 743 of 1683 [2023-01-27 18:57:44,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:57:45,404 INFO L130 PetriNetUnfolder]: 335/648 cut-off events. [2023-01-27 18:57:45,404 INFO L131 PetriNetUnfolder]: For 716/716 co-relation queries the response was YES. [2023-01-27 18:57:45,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1757 conditions, 648 events. 335/648 cut-off events. For 716/716 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2739 event pairs, 270 based on Foata normal form. 0/616 useless extension candidates. Maximal degree in co-relation 1748. Up to 643 conditions per place. [2023-01-27 18:57:45,408 INFO L137 encePairwiseOnDemand]: 1675/1683 looper letters, 51 selfloop transitions, 8 changer transitions 0/59 dead transitions. [2023-01-27 18:57:45,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 59 transitions, 354 flow [2023-01-27 18:57:45,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 18:57:45,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 18:57:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4517 transitions. [2023-01-27 18:57:45,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4473163002574767 [2023-01-27 18:57:45,418 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4517 transitions. [2023-01-27 18:57:45,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4517 transitions. [2023-01-27 18:57:45,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:57:45,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4517 transitions. [2023-01-27 18:57:45,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 752.8333333333334) internal successors, (4517), 6 states have internal predecessors, (4517), 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 18:57:45,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1683.0) internal successors, (11781), 7 states have internal predecessors, (11781), 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 18:57:45,443 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1683.0) internal successors, (11781), 7 states have internal predecessors, (11781), 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 18:57:45,443 INFO L175 Difference]: Start difference. First operand has 53 places, 54 transitions, 220 flow. Second operand 6 states and 4517 transitions. [2023-01-27 18:57:45,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 59 transitions, 354 flow [2023-01-27 18:57:45,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 59 transitions, 349 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-01-27 18:57:45,447 INFO L231 Difference]: Finished difference. Result has 60 places, 59 transitions, 281 flow [2023-01-27 18:57:45,447 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1683, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=281, PETRI_PLACES=60, PETRI_TRANSITIONS=59} [2023-01-27 18:57:45,447 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2023-01-27 18:57:45,447 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 59 transitions, 281 flow [2023-01-27 18:57:45,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 745.625) internal successors, (5965), 8 states have internal predecessors, (5965), 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 18:57:45,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:57:45,449 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:57:45,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-27 18:57:45,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:57:45,662 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:57:45,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:57:45,662 INFO L85 PathProgramCache]: Analyzing trace with hash 781361293, now seen corresponding path program 2 times [2023-01-27 18:57:45,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:57:45,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101935944] [2023-01-27 18:57:45,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:45,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:57:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:57:46,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:57:46,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101935944] [2023-01-27 18:57:46,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101935944] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:57:46,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84684670] [2023-01-27 18:57:46,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:57:46,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:57:46,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:57:46,839 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:57:46,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-27 18:57:47,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 18:57:47,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:57:47,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 22 conjunts are in the unsatisfiable core [2023-01-27 18:57:48,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:57:48,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-01-27 18:57:48,596 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-01-27 18:57:48,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:57:48,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84684670] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:57:48,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:57:48,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-01-27 18:57:48,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548212043] [2023-01-27 18:57:48,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:57:48,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 18:57:48,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:57:48,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 18:57:48,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-01-27 18:57:48,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 709 out of 1683 [2023-01-27 18:57:48,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 59 transitions, 281 flow. Second operand has 4 states, 4 states have (on average 712.75) internal successors, (2851), 4 states have internal predecessors, (2851), 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 18:57:48,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:57:48,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 709 of 1683 [2023-01-27 18:57:48,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:57:49,716 INFO L130 PetriNetUnfolder]: 323/634 cut-off events. [2023-01-27 18:57:49,716 INFO L131 PetriNetUnfolder]: For 656/656 co-relation queries the response was YES. [2023-01-27 18:57:49,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1731 conditions, 634 events. 323/634 cut-off events. For 656/656 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2685 event pairs, 163 based on Foata normal form. 0/619 useless extension candidates. Maximal degree in co-relation 1719. Up to 374 conditions per place. [2023-01-27 18:57:49,719 INFO L137 encePairwiseOnDemand]: 1677/1683 looper letters, 54 selfloop transitions, 9 changer transitions 11/74 dead transitions. [2023-01-27 18:57:49,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 74 transitions, 491 flow [2023-01-27 18:57:49,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 18:57:49,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 18:57:49,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2895 transitions. [2023-01-27 18:57:49,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43003565062388593 [2023-01-27 18:57:49,726 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2895 transitions. [2023-01-27 18:57:49,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2895 transitions. [2023-01-27 18:57:49,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:57:49,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2895 transitions. [2023-01-27 18:57:49,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 723.75) internal successors, (2895), 4 states have internal predecessors, (2895), 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 18:57:49,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1683.0) internal successors, (8415), 5 states have internal predecessors, (8415), 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 18:57:49,740 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1683.0) internal successors, (8415), 5 states have internal predecessors, (8415), 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 18:57:49,740 INFO L175 Difference]: Start difference. First operand has 60 places, 59 transitions, 281 flow. Second operand 4 states and 2895 transitions. [2023-01-27 18:57:49,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 74 transitions, 491 flow [2023-01-27 18:57:49,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 74 transitions, 481 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-01-27 18:57:49,744 INFO L231 Difference]: Finished difference. Result has 63 places, 58 transitions, 295 flow [2023-01-27 18:57:49,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1683, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=295, PETRI_PLACES=63, PETRI_TRANSITIONS=58} [2023-01-27 18:57:49,746 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 21 predicate places. [2023-01-27 18:57:49,746 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 58 transitions, 295 flow [2023-01-27 18:57:49,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 712.75) internal successors, (2851), 4 states have internal predecessors, (2851), 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 18:57:49,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:57:49,747 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:57:49,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-27 18:57:49,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:57:49,959 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:57:49,959 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:57:49,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1766874052, now seen corresponding path program 1 times [2023-01-27 18:57:49,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:57:49,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847198648] [2023-01-27 18:57:49,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:49,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:57:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:50,912 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:57:50,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:57:50,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847198648] [2023-01-27 18:57:50,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847198648] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:57:50,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303194089] [2023-01-27 18:57:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:50,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:57:50,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:57:50,918 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:57:50,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-27 18:57:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:51,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 57 conjunts are in the unsatisfiable core [2023-01-27 18:57:51,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:57:51,660 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-01-27 18:57:51,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 30 [2023-01-27 18:57:52,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-01-27 18:57:52,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-01-27 18:57:52,317 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 18:57:52,325 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 18:57:52,344 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-01-27 18:57:52,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:57:52,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303194089] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:57:52,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:57:52,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2023-01-27 18:57:52,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217408353] [2023-01-27 18:57:52,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:57:52,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-27 18:57:52,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:57:52,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-27 18:57:52,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-01-27 18:57:52,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 722 out of 1683 [2023-01-27 18:57:52,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 58 transitions, 295 flow. Second operand has 6 states, 6 states have (on average 724.8333333333334) internal successors, (4349), 6 states have internal predecessors, (4349), 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 18:57:52,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:57:52,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 722 of 1683 [2023-01-27 18:57:52,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:57:53,493 INFO L130 PetriNetUnfolder]: 302/617 cut-off events. [2023-01-27 18:57:53,494 INFO L131 PetriNetUnfolder]: For 804/804 co-relation queries the response was YES. [2023-01-27 18:57:53,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1780 conditions, 617 events. 302/617 cut-off events. For 804/804 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2783 event pairs, 114 based on Foata normal form. 4/614 useless extension candidates. Maximal degree in co-relation 1766. Up to 349 conditions per place. [2023-01-27 18:57:53,497 INFO L137 encePairwiseOnDemand]: 1678/1683 looper letters, 59 selfloop transitions, 6 changer transitions 16/81 dead transitions. [2023-01-27 18:57:53,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 81 transitions, 526 flow [2023-01-27 18:57:53,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 18:57:53,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 18:57:53,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3681 transitions. [2023-01-27 18:57:53,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4374331550802139 [2023-01-27 18:57:53,506 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3681 transitions. [2023-01-27 18:57:53,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3681 transitions. [2023-01-27 18:57:53,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:57:53,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3681 transitions. [2023-01-27 18:57:53,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 736.2) internal successors, (3681), 5 states have internal predecessors, (3681), 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 18:57:53,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1683.0) internal successors, (10098), 6 states have internal predecessors, (10098), 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 18:57:53,524 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1683.0) internal successors, (10098), 6 states have internal predecessors, (10098), 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 18:57:53,524 INFO L175 Difference]: Start difference. First operand has 63 places, 58 transitions, 295 flow. Second operand 5 states and 3681 transitions. [2023-01-27 18:57:53,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 81 transitions, 526 flow [2023-01-27 18:57:53,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 81 transitions, 484 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-01-27 18:57:53,528 INFO L231 Difference]: Finished difference. Result has 64 places, 55 transitions, 250 flow [2023-01-27 18:57:53,529 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1683, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=250, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2023-01-27 18:57:53,529 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 22 predicate places. [2023-01-27 18:57:53,529 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 250 flow [2023-01-27 18:57:53,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 724.8333333333334) internal successors, (4349), 6 states have internal predecessors, (4349), 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 18:57:53,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:57:53,530 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:57:53,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-01-27 18:57:53,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:57:53,741 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:57:53,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:57:53,741 INFO L85 PathProgramCache]: Analyzing trace with hash -730774836, now seen corresponding path program 1 times [2023-01-27 18:57:53,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:57:53,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000028224] [2023-01-27 18:57:53,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:53,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:57:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:55,039 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:57:55,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:57:55,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000028224] [2023-01-27 18:57:55,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000028224] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:57:55,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385285509] [2023-01-27 18:57:55,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:55,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:57:55,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:57:55,041 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:57:55,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-27 18:57:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:57:56,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 15 conjunts are in the unsatisfiable core [2023-01-27 18:57:56,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:57:56,771 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:57:56,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:57:57,009 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:57:57,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385285509] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:57:57,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:57:57,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-01-27 18:57:57,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234930128] [2023-01-27 18:57:57,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:57:57,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-01-27 18:57:57,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:57:57,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-01-27 18:57:57,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-01-27 18:57:57,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 747 out of 1683 [2023-01-27 18:57:57,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 250 flow. Second operand has 14 states, 14 states have (on average 749.0714285714286) internal successors, (10487), 14 states have internal predecessors, (10487), 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 18:57:57,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:57:57,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 747 of 1683 [2023-01-27 18:57:57,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:57:58,400 INFO L130 PetriNetUnfolder]: 211/463 cut-off events. [2023-01-27 18:57:58,400 INFO L131 PetriNetUnfolder]: For 404/404 co-relation queries the response was YES. [2023-01-27 18:57:58,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1232 conditions, 463 events. 211/463 cut-off events. For 404/404 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1890 event pairs, 185 based on Foata normal form. 9/465 useless extension candidates. Maximal degree in co-relation 1218. Up to 449 conditions per place. [2023-01-27 18:57:58,402 INFO L137 encePairwiseOnDemand]: 1675/1683 looper letters, 47 selfloop transitions, 17 changer transitions 0/64 dead transitions. [2023-01-27 18:57:58,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 64 transitions, 426 flow [2023-01-27 18:57:58,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-27 18:57:58,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-27 18:57:58,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 9040 transitions. [2023-01-27 18:57:58,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4476133887898594 [2023-01-27 18:57:58,419 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 9040 transitions. [2023-01-27 18:57:58,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 9040 transitions. [2023-01-27 18:57:58,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:57:58,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 9040 transitions. [2023-01-27 18:57:58,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 753.3333333333334) internal successors, (9040), 12 states have internal predecessors, (9040), 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 18:57:58,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1683.0) internal successors, (21879), 13 states have internal predecessors, (21879), 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 18:57:58,464 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1683.0) internal successors, (21879), 13 states have internal predecessors, (21879), 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 18:57:58,464 INFO L175 Difference]: Start difference. First operand has 64 places, 55 transitions, 250 flow. Second operand 12 states and 9040 transitions. [2023-01-27 18:57:58,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 64 transitions, 426 flow [2023-01-27 18:57:58,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 64 transitions, 404 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-01-27 18:57:58,467 INFO L231 Difference]: Finished difference. Result has 75 places, 64 transitions, 372 flow [2023-01-27 18:57:58,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1683, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=372, PETRI_PLACES=75, PETRI_TRANSITIONS=64} [2023-01-27 18:57:58,468 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 33 predicate places. [2023-01-27 18:57:58,468 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 64 transitions, 372 flow [2023-01-27 18:57:58,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 749.0714285714286) internal successors, (10487), 14 states have internal predecessors, (10487), 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 18:57:58,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:57:58,471 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:57:58,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-27 18:57:58,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:57:58,687 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:57:58,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:57:58,688 INFO L85 PathProgramCache]: Analyzing trace with hash 638604460, now seen corresponding path program 2 times [2023-01-27 18:57:58,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:57:58,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274800951] [2023-01-27 18:57:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:57:58,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:57:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:58:00,340 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:58:00,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:58:00,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274800951] [2023-01-27 18:58:00,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274800951] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:58:00,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951786181] [2023-01-27 18:58:00,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:58:00,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:58:00,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:58:00,342 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:58:00,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-27 18:58:01,678 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 18:58:01,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:58:01,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 55 conjunts are in the unsatisfiable core [2023-01-27 18:58:01,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:58:01,723 INFO L321 Elim1Store]: treesize reduction 32, result has 34.7 percent of original size [2023-01-27 18:58:01,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 62 [2023-01-27 18:58:02,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-01-27 18:58:02,473 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 18:58:02,513 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-01-27 18:58:02,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:58:02,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951786181] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:58:02,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:58:02,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 17 [2023-01-27 18:58:02,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395704024] [2023-01-27 18:58:02,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:58:02,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:58:02,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:58:02,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:58:02,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2023-01-27 18:58:02,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 702 out of 1683 [2023-01-27 18:58:02,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 64 transitions, 372 flow. Second operand has 7 states, 7 states have (on average 704.4285714285714) internal successors, (4931), 7 states have internal predecessors, (4931), 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 18:58:02,522 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:58:02,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 702 of 1683 [2023-01-27 18:58:02,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:58:03,408 INFO L130 PetriNetUnfolder]: 225/497 cut-off events. [2023-01-27 18:58:03,408 INFO L131 PetriNetUnfolder]: For 276/276 co-relation queries the response was YES. [2023-01-27 18:58:03,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1308 conditions, 497 events. 225/497 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2083 event pairs, 110 based on Foata normal form. 8/498 useless extension candidates. Maximal degree in co-relation 1289. Up to 282 conditions per place. [2023-01-27 18:58:03,410 INFO L137 encePairwiseOnDemand]: 1675/1683 looper letters, 59 selfloop transitions, 7 changer transitions 17/83 dead transitions. [2023-01-27 18:58:03,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 83 transitions, 593 flow [2023-01-27 18:58:03,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 18:58:03,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 18:58:03,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4276 transitions. [2023-01-27 18:58:03,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4234501881560705 [2023-01-27 18:58:03,418 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4276 transitions. [2023-01-27 18:58:03,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4276 transitions. [2023-01-27 18:58:03,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:58:03,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4276 transitions. [2023-01-27 18:58:03,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 712.6666666666666) internal successors, (4276), 6 states have internal predecessors, (4276), 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 18:58:03,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1683.0) internal successors, (11781), 7 states have internal predecessors, (11781), 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 18:58:03,431 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1683.0) internal successors, (11781), 7 states have internal predecessors, (11781), 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 18:58:03,432 INFO L175 Difference]: Start difference. First operand has 75 places, 64 transitions, 372 flow. Second operand 6 states and 4276 transitions. [2023-01-27 18:58:03,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 83 transitions, 593 flow [2023-01-27 18:58:03,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 83 transitions, 553 flow, removed 18 selfloop flow, removed 2 redundant places. [2023-01-27 18:58:03,435 INFO L231 Difference]: Finished difference. Result has 80 places, 63 transitions, 346 flow [2023-01-27 18:58:03,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1683, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=80, PETRI_TRANSITIONS=63} [2023-01-27 18:58:03,436 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 38 predicate places. [2023-01-27 18:58:03,436 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 63 transitions, 346 flow [2023-01-27 18:58:03,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 704.4285714285714) internal successors, (4931), 7 states have internal predecessors, (4931), 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 18:58:03,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:58:03,437 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:58:03,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-01-27 18:58:03,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:58:03,649 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:58:03,649 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:58:03,649 INFO L85 PathProgramCache]: Analyzing trace with hash 81689220, now seen corresponding path program 3 times [2023-01-27 18:58:03,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:58:03,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699469061] [2023-01-27 18:58:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:58:03,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:58:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:58:04,891 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:58:04,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:58:04,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699469061] [2023-01-27 18:58:04,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699469061] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:58:04,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683569477] [2023-01-27 18:58:04,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-27 18:58:04,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:58:04,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:58:04,893 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:58:04,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-01-27 18:58:05,847 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-01-27 18:58:05,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:58:05,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 48 conjunts are in the unsatisfiable core [2023-01-27 18:58:05,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:58:05,879 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-01-27 18:58:05,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 30 [2023-01-27 18:58:06,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-01-27 18:58:06,577 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 18:58:06,623 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-01-27 18:58:06,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:58:06,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683569477] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:58:06,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:58:06,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 17 [2023-01-27 18:58:06,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852020698] [2023-01-27 18:58:06,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:58:06,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:58:06,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:58:06,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:58:06,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-01-27 18:58:06,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 702 out of 1683 [2023-01-27 18:58:06,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 63 transitions, 346 flow. Second operand has 7 states, 7 states have (on average 704.4285714285714) internal successors, (4931), 7 states have internal predecessors, (4931), 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 18:58:06,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:58:06,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 702 of 1683 [2023-01-27 18:58:06,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:58:08,406 INFO L130 PetriNetUnfolder]: 221/493 cut-off events. [2023-01-27 18:58:08,406 INFO L131 PetriNetUnfolder]: For 397/397 co-relation queries the response was YES. [2023-01-27 18:58:08,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1386 conditions, 493 events. 221/493 cut-off events. For 397/397 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2085 event pairs, 91 based on Foata normal form. 8/494 useless extension candidates. Maximal degree in co-relation 1364. Up to 265 conditions per place. [2023-01-27 18:58:08,416 INFO L137 encePairwiseOnDemand]: 1675/1683 looper letters, 66 selfloop transitions, 7 changer transitions 14/87 dead transitions. [2023-01-27 18:58:08,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 87 transitions, 616 flow [2023-01-27 18:58:08,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 18:58:08,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 18:58:08,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4281 transitions. [2023-01-27 18:58:08,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4239453357100416 [2023-01-27 18:58:08,424 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4281 transitions. [2023-01-27 18:58:08,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4281 transitions. [2023-01-27 18:58:08,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:58:08,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4281 transitions. [2023-01-27 18:58:08,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 713.5) internal successors, (4281), 6 states have internal predecessors, (4281), 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 18:58:08,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1683.0) internal successors, (11781), 7 states have internal predecessors, (11781), 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 18:58:08,437 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1683.0) internal successors, (11781), 7 states have internal predecessors, (11781), 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 18:58:08,437 INFO L175 Difference]: Start difference. First operand has 80 places, 63 transitions, 346 flow. Second operand 6 states and 4281 transitions. [2023-01-27 18:58:08,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 87 transitions, 616 flow [2023-01-27 18:58:08,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 87 transitions, 578 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-01-27 18:58:08,442 INFO L231 Difference]: Finished difference. Result has 81 places, 66 transitions, 367 flow [2023-01-27 18:58:08,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1683, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=367, PETRI_PLACES=81, PETRI_TRANSITIONS=66} [2023-01-27 18:58:08,442 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 39 predicate places. [2023-01-27 18:58:08,443 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 66 transitions, 367 flow [2023-01-27 18:58:08,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 704.4285714285714) internal successors, (4931), 7 states have internal predecessors, (4931), 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 18:58:08,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:58:08,443 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:58:08,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-01-27 18:58:08,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-01-27 18:58:08,656 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:58:08,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:58:08,656 INFO L85 PathProgramCache]: Analyzing trace with hash 901640040, now seen corresponding path program 2 times [2023-01-27 18:58:08,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:58:08,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083132673] [2023-01-27 18:58:08,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:58:08,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:58:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:58:09,866 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:58:09,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:58:09,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083132673] [2023-01-27 18:58:09,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083132673] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:58:09,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735359999] [2023-01-27 18:58:09,867 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:58:09,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:58:09,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:58:09,868 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:58:09,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-01-27 18:58:10,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 18:58:10,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:58:10,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 58 conjunts are in the unsatisfiable core [2023-01-27 18:58:10,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:58:10,812 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-27 18:58:10,812 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 18:58:11,445 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-27 18:58:11,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 53 [2023-01-27 18:58:11,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-27 18:58:11,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-27 18:58:11,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-01-27 18:58:11,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-01-27 18:58:11,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:58:11,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 18:58:11,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:58:11,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 18:58:11,990 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 18:58:11,996 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 18:58:12,036 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-01-27 18:58:12,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:58:12,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735359999] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:58:12,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:58:12,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 18 [2023-01-27 18:58:12,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233036653] [2023-01-27 18:58:12,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:58:12,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-27 18:58:12,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:58:12,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-27 18:58:12,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-01-27 18:58:12,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 691 out of 1683 [2023-01-27 18:58:12,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 66 transitions, 367 flow. Second operand has 8 states, 8 states have (on average 693.125) internal successors, (5545), 8 states have internal predecessors, (5545), 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 18:58:12,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:58:12,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 691 of 1683 [2023-01-27 18:58:12,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:58:13,431 INFO L130 PetriNetUnfolder]: 189/427 cut-off events. [2023-01-27 18:58:13,431 INFO L131 PetriNetUnfolder]: For 423/423 co-relation queries the response was YES. [2023-01-27 18:58:13,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1279 conditions, 427 events. 189/427 cut-off events. For 423/423 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1723 event pairs, 121 based on Foata normal form. 4/424 useless extension candidates. Maximal degree in co-relation 1256. Up to 316 conditions per place. [2023-01-27 18:58:13,433 INFO L137 encePairwiseOnDemand]: 1672/1683 looper letters, 48 selfloop transitions, 10 changer transitions 23/81 dead transitions. [2023-01-27 18:58:13,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 81 transitions, 578 flow [2023-01-27 18:58:13,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 18:58:13,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 18:58:13,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4210 transitions. [2023-01-27 18:58:13,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4169142404436522 [2023-01-27 18:58:13,441 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4210 transitions. [2023-01-27 18:58:13,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4210 transitions. [2023-01-27 18:58:13,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:58:13,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4210 transitions. [2023-01-27 18:58:13,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 701.6666666666666) internal successors, (4210), 6 states have internal predecessors, (4210), 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 18:58:13,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1683.0) internal successors, (11781), 7 states have internal predecessors, (11781), 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 18:58:13,454 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1683.0) internal successors, (11781), 7 states have internal predecessors, (11781), 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 18:58:13,455 INFO L175 Difference]: Start difference. First operand has 81 places, 66 transitions, 367 flow. Second operand 6 states and 4210 transitions. [2023-01-27 18:58:13,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 81 transitions, 578 flow [2023-01-27 18:58:13,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 81 transitions, 571 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-01-27 18:58:13,459 INFO L231 Difference]: Finished difference. Result has 82 places, 56 transitions, 313 flow [2023-01-27 18:58:13,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1683, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=313, PETRI_PLACES=82, PETRI_TRANSITIONS=56} [2023-01-27 18:58:13,460 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 40 predicate places. [2023-01-27 18:58:13,460 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 56 transitions, 313 flow [2023-01-27 18:58:13,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 693.125) internal successors, (5545), 8 states have internal predecessors, (5545), 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 18:58:13,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:58:13,461 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:58:13,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-01-27 18:58:13,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-01-27 18:58:13,673 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:58:13,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:58:13,673 INFO L85 PathProgramCache]: Analyzing trace with hash 651318490, now seen corresponding path program 4 times [2023-01-27 18:58:13,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:58:13,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788805175] [2023-01-27 18:58:13,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:58:13,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:58:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:58:15,039 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:58:15,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:58:15,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788805175] [2023-01-27 18:58:15,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788805175] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:58:15,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513385172] [2023-01-27 18:58:15,040 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-27 18:58:15,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:58:15,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:58:15,042 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:58:15,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-01-27 18:58:16,827 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-27 18:58:16,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:58:16,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 27 conjunts are in the unsatisfiable core [2023-01-27 18:58:16,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:58:17,370 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:58:17,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:58:17,887 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:58:17,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513385172] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:58:17,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:58:17,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2023-01-27 18:58:17,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13833217] [2023-01-27 18:58:17,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:58:17,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-01-27 18:58:17,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:58:17,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-01-27 18:58:17,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=676, Unknown=0, NotChecked=0, Total=992 [2023-01-27 18:58:17,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 747 out of 1683 [2023-01-27 18:58:17,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 56 transitions, 313 flow. Second operand has 32 states, 32 states have (on average 748.46875) internal successors, (23951), 32 states have internal predecessors, (23951), 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 18:58:17,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:58:17,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 747 of 1683 [2023-01-27 18:58:17,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:58:29,597 WARN L222 SmtUtils]: Spent 6.34s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 18:58:44,913 INFO L130 PetriNetUnfolder]: 45/140 cut-off events. [2023-01-27 18:58:44,913 INFO L131 PetriNetUnfolder]: For 1226/1226 co-relation queries the response was YES. [2023-01-27 18:58:44,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 140 events. 45/140 cut-off events. For 1226/1226 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 257 event pairs, 35 based on Foata normal form. 30/165 useless extension candidates. Maximal degree in co-relation 477. Up to 108 conditions per place. [2023-01-27 18:58:44,914 INFO L137 encePairwiseOnDemand]: 1675/1683 looper letters, 39 selfloop transitions, 35 changer transitions 0/74 dead transitions. [2023-01-27 18:58:44,914 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 74 transitions, 557 flow [2023-01-27 18:58:44,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-27 18:58:44,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-27 18:58:44,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 18038 transitions. [2023-01-27 18:58:44,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4465735789265201 [2023-01-27 18:58:44,939 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 18038 transitions. [2023-01-27 18:58:44,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 18038 transitions. [2023-01-27 18:58:44,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:58:44,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 18038 transitions. [2023-01-27 18:58:44,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 751.5833333333334) internal successors, (18038), 24 states have internal predecessors, (18038), 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 18:58:44,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 1683.0) internal successors, (42075), 25 states have internal predecessors, (42075), 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 18:58:44,995 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 1683.0) internal successors, (42075), 25 states have internal predecessors, (42075), 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 18:58:44,996 INFO L175 Difference]: Start difference. First operand has 82 places, 56 transitions, 313 flow. Second operand 24 states and 18038 transitions. [2023-01-27 18:58:44,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 74 transitions, 557 flow [2023-01-27 18:58:44,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 74 transitions, 515 flow, removed 6 selfloop flow, removed 12 redundant places. [2023-01-27 18:58:45,000 INFO L231 Difference]: Finished difference. Result has 102 places, 74 transitions, 559 flow [2023-01-27 18:58:45,000 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1683, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=559, PETRI_PLACES=102, PETRI_TRANSITIONS=74} [2023-01-27 18:58:45,000 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 60 predicate places. [2023-01-27 18:58:45,000 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 74 transitions, 559 flow [2023-01-27 18:58:45,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 748.46875) internal successors, (23951), 32 states have internal predecessors, (23951), 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 18:58:45,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:58:45,003 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:58:45,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-01-27 18:58:45,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-01-27 18:58:45,217 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:58:45,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:58:45,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1506263194, now seen corresponding path program 5 times [2023-01-27 18:58:45,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:58:45,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770732357] [2023-01-27 18:58:45,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:58:45,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:58:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:58:46,996 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:58:46,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:58:46,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770732357] [2023-01-27 18:58:46,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770732357] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:58:46,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610184919] [2023-01-27 18:58:46,997 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-27 18:58:46,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:58:46,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:58:46,998 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:58:47,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process Received shutdown request... [2023-01-27 19:04:15,246 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 19:04:15,246 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 19:04:16,283 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 [2023-01-27 19:04:16,453 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forcibly destroying the process [2023-01-27 19:04:16,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-01-27 19:04:16,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-01-27 19:04:16,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2023-01-27 19:04:16,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186822899] [2023-01-27 19:04:16,483 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-01-27 19:04:16,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-01-27 19:04:16,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:04:16,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-01-27 19:04:16,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2023-01-27 19:04:16,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 137 [2023-01-27 19:04:16,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 747 out of 1683 [2023-01-27 19:04:16,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 74 transitions, 559 flow. Second operand has 25 states, 25 states have (on average 748.52) internal successors, (18713), 25 states have internal predecessors, (18713), 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 19:04:16,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:04:16,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 747 of 1683 [2023-01-27 19:04:16,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:04:16,504 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2023-01-27 19:04:16,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-01-27 19:04:16,505 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-01-27 19:04:16,509 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2023-01-27 19:04:16,510 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2023-01-27 19:04:16,510 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2023-01-27 19:04:16,510 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-01-27 19:04:16,510 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2023-01-27 19:04:16,510 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2023-01-27 19:04:16,511 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2023-01-27 19:04:16,511 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2023-01-27 19:04:16,511 INFO L445 BasicCegarLoop]: Path program histogram: [5, 2, 2, 1, 1, 1, 1, 1, 1] [2023-01-27 19:04:16,521 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:04:16,521 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:04:16,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:04:16 BasicIcfg [2023-01-27 19:04:16,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:04:16,524 INFO L158 Benchmark]: Toolchain (without parser) took 825806.51ms. Allocated memory was 388.0MB in the beginning and 1.3GB in the end (delta: 906.0MB). Free memory was 335.6MB in the beginning and 728.2MB in the end (delta: -392.6MB). Peak memory consumption was 513.5MB. Max. memory is 16.0GB. [2023-01-27 19:04:16,524 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 213.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:04:16,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4292.74ms. Allocated memory was 388.0MB in the beginning and 515.9MB in the end (delta: 127.9MB). Free memory was 335.6MB in the beginning and 407.5MB in the end (delta: -71.9MB). Peak memory consumption was 109.0MB. Max. memory is 16.0GB. [2023-01-27 19:04:16,525 INFO L158 Benchmark]: Boogie Procedure Inliner took 170.41ms. Allocated memory is still 515.9MB. Free memory was 407.5MB in the beginning and 396.0MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 19:04:16,525 INFO L158 Benchmark]: Boogie Preprocessor took 112.62ms. Allocated memory is still 515.9MB. Free memory was 396.0MB in the beginning and 389.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-01-27 19:04:16,525 INFO L158 Benchmark]: RCFGBuilder took 1277.67ms. Allocated memory is still 515.9MB. Free memory was 389.7MB in the beginning and 419.9MB in the end (delta: -30.3MB). Peak memory consumption was 43.1MB. Max. memory is 16.0GB. [2023-01-27 19:04:16,526 INFO L158 Benchmark]: TraceAbstraction took 819947.14ms. Allocated memory was 515.9MB in the beginning and 1.3GB in the end (delta: 778.0MB). Free memory was 418.9MB in the beginning and 728.2MB in the end (delta: -309.3MB). Peak memory consumption was 469.7MB. Max. memory is 16.0GB. [2023-01-27 19:04:16,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 213.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 4292.74ms. Allocated memory was 388.0MB in the beginning and 515.9MB in the end (delta: 127.9MB). Free memory was 335.6MB in the beginning and 407.5MB in the end (delta: -71.9MB). Peak memory consumption was 109.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 170.41ms. Allocated memory is still 515.9MB. Free memory was 407.5MB in the beginning and 396.0MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Preprocessor took 112.62ms. Allocated memory is still 515.9MB. Free memory was 396.0MB in the beginning and 389.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * RCFGBuilder took 1277.67ms. Allocated memory is still 515.9MB. Free memory was 389.7MB in the beginning and 419.9MB in the end (delta: -30.3MB). Peak memory consumption was 43.1MB. Max. memory is 16.0GB. * TraceAbstraction took 819947.14ms. Allocated memory was 515.9MB in the beginning and 1.3GB in the end (delta: 778.0MB). Free memory was 418.9MB in the beginning and 728.2MB in the end (delta: -309.3MB). Peak memory consumption was 469.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 413.7s, 746 PlacesBefore, 42 PlacesAfterwards, 795 TransitionsBefore, 59 TransitionsAfterwards, 17334 CoEnabledTransitionPairs, 10 FixpointIterations, 556 TrivialSequentialCompositions, 182 ConcurrentSequentialCompositions, 81 TrivialYvCompositions, 27 ConcurrentYvCompositions, 32 ChoiceCompositions, 878 TotalNumberOfCompositions, 16655 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13585, independent: 13383, independent conditional: 0, independent unconditional: 13383, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9246, independent: 9198, independent conditional: 0, independent unconditional: 9198, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13585, independent: 4185, independent conditional: 0, independent unconditional: 4185, dependent: 154, dependent conditional: 0, dependent unconditional: 154, unknown: 9246, unknown conditional: 0, unknown unconditional: 9246] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 7069]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 7068]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 930 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 819.7s, OverallIterations: 15, TraceHistogramMax: 22, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 41.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 414.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 498 SdHoareTripleChecker+Valid, 15.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 498 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 15.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 160 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2945 IncrementalHoareTripleChecker+Invalid, 3106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 160 mSolverCounterUnsat, 0 mSDtfsCounter, 2945 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 383 GetRequests, 195 SyntacticMatches, 5 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 25.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=559occurred in iteration=14, InterpolantAutomatonStates: 92, 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: 0.7s SsaConstructionTime, 9.3s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 451 NumberOfCodeBlocks, 417 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 484 ConstructedInterpolants, 3 QuantifiedInterpolants, 3589 SizeOfPredicates, 318 NumberOfNonLiveVariables, 11983 ConjunctsInSsa, 337 ConjunctsInUnsatCore, 28 InterpolantComputations, 11 PerfectInterpolantSequences, 187/825 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown