/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:37:07,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:37:07,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:37:07,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:37:07,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:37:07,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:37:07,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:37:07,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:37:07,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:37:07,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:37:07,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:37:07,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:37:07,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:37:07,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:37:07,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:37:07,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:37:07,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:37:07,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:37:07,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:37:07,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:37:07,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:37:07,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:37:07,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:37:07,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:37:07,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 18:37:07,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 18:37:07,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 18:37:08,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 18:37:08,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 18:37:08,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 18:37:08,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 18:37:08,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 18:37:08,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 18:37:08,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 18:37:08,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 18:37:08,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 18:37:08,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 18:37:08,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 18:37:08,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:37:08,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:37:08,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:37:08,006 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 18:37:08,028 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:37:08,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:37:08,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:37:08,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:37:08,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:37:08,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:37:08,029 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:37:08,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:37:08,029 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:37:08,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:37:08,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:37:08,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:37:08,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:37:08,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:37:08,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:37:08,030 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:37:08,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:37:08,030 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:37:08,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:37:08,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:37:08,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:37:08,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:37:08,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:37:08,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:37:08,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:37:08,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:37:08,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:37:08,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:37:08,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:37:08,031 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:37:08,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:37:08,031 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:37:08,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:37:08,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:37:08,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:37:08,196 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:37:08,197 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:37:08,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-01-27 18:37:09,239 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:37:09,589 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:37:09,589 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-01-27 18:37:09,620 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cbd074fa/8b43736107a6447ba8bd80f60bd49b94/FLAG77fedcbf6 [2023-01-27 18:37:09,632 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cbd074fa/8b43736107a6447ba8bd80f60bd49b94 [2023-01-27 18:37:09,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:37:09,635 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:37:09,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:37:09,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:37:09,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:37:09,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:37:09" (1/1) ... [2023-01-27 18:37:09,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9a172a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:09, skipping insertion in model container [2023-01-27 18:37:09,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:37:09" (1/1) ... [2023-01-27 18:37:09,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:37:09,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:37:10,024 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i[5469,5482] [2023-01-27 18:37:12,239 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:37:12,581 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:37:12,581 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:37:12,634 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:37:12,648 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:37:12,671 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i[5469,5482] [2023-01-27 18:37:12,845 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:37:12,894 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:37:12,894 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:37:12,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:37:13,235 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:37:13,236 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:37:13,236 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:37:13,236 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:37:13,236 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:37:13,236 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:37:13,236 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:37:13,240 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:37:13,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:13 WrapperNode [2023-01-27 18:37:13,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:37:13,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:37:13,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:37:13,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:37:13,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:13" (1/1) ... [2023-01-27 18:37:13,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:13" (1/1) ... [2023-01-27 18:37:13,414 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 54, statements flattened = 722 [2023-01-27 18:37:13,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:37:13,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:37:13,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:37:13,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:37:13,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:13" (1/1) ... [2023-01-27 18:37:13,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:13" (1/1) ... [2023-01-27 18:37:13,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:13" (1/1) ... [2023-01-27 18:37:13,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:13" (1/1) ... [2023-01-27 18:37:13,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:13" (1/1) ... [2023-01-27 18:37:13,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:13" (1/1) ... [2023-01-27 18:37:13,457 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:13" (1/1) ... [2023-01-27 18:37:13,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:13" (1/1) ... [2023-01-27 18:37:13,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:37:13,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:37:13,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:37:13,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:37:13,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:13" (1/1) ... [2023-01-27 18:37:13,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:37:13,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:37:13,499 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 18:37:13,513 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 18:37:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 18:37:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 18:37:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:37:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-27 18:37:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2023-01-27 18:37:13,526 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2023-01-27 18:37:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-01-27 18:37:13,527 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-01-27 18:37:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:37:13,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:37:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-27 18:37:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:37:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-27 18:37:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:37:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:37:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-27 18:37:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:37:13,529 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 18:37:13,915 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:37:13,916 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:37:14,453 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:37:14,460 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:37:14,460 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-01-27 18:37:14,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:37:14 BoogieIcfgContainer [2023-01-27 18:37:14,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:37:14,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:37:14,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:37:14,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:37:14,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:37:09" (1/3) ... [2023-01-27 18:37:14,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43826148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:37:14, skipping insertion in model container [2023-01-27 18:37:14,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:37:13" (2/3) ... [2023-01-27 18:37:14,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43826148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:37:14, skipping insertion in model container [2023-01-27 18:37:14,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:37:14" (3/3) ... [2023-01-27 18:37:14,467 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2023-01-27 18:37:14,478 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:37:14,478 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-01-27 18:37:14,478 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:37:14,549 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 18:37:14,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 741 places, 788 transitions, 1592 flow [2023-01-27 18:37:14,739 INFO L130 PetriNetUnfolder]: 54/786 cut-off events. [2023-01-27 18:37:14,739 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:37:14,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 786 events. 54/786 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1067 event pairs, 0 based on Foata normal form. 0/728 useless extension candidates. Maximal degree in co-relation 629. Up to 9 conditions per place. [2023-01-27 18:37:14,747 INFO L82 GeneralOperation]: Start removeDead. Operand has 741 places, 788 transitions, 1592 flow [2023-01-27 18:37:14,757 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 731 places, 778 transitions, 1565 flow [2023-01-27 18:37:14,759 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:37:14,768 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 731 places, 778 transitions, 1565 flow [2023-01-27 18:37:14,770 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 731 places, 778 transitions, 1565 flow [2023-01-27 18:37:14,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 731 places, 778 transitions, 1565 flow [2023-01-27 18:37:14,884 INFO L130 PetriNetUnfolder]: 54/778 cut-off events. [2023-01-27 18:37:14,884 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 18:37:14,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 778 events. 54/778 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1007 event pairs, 0 based on Foata normal form. 0/720 useless extension candidates. Maximal degree in co-relation 629. Up to 9 conditions per place. [2023-01-27 18:37:14,891 INFO L119 LiptonReduction]: Number of co-enabled transitions 12132 [2023-01-27 18:38:39,602 WARN L222 SmtUtils]: Spent 27.30s on a formula simplification that was a NOOP. DAG size: 511 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:39:08,215 WARN L222 SmtUtils]: Spent 28.61s on a formula simplification that was a NOOP. DAG size: 511 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:39:31,277 WARN L222 SmtUtils]: Spent 23.06s on a formula simplification that was a NOOP. DAG size: 511 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:39:51,128 WARN L222 SmtUtils]: Spent 19.85s on a formula simplification that was a NOOP. DAG size: 511 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:41:16,427 WARN L222 SmtUtils]: Spent 1.35m on a formula simplification. DAG size of input: 601 DAG size of output: 599 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:42:02,292 WARN L222 SmtUtils]: Spent 45.86s 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 18:44:24,193 WARN L222 SmtUtils]: Spent 2.36m on a formula simplification. DAG size of input: 604 DAG size of output: 602 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:45:00,167 WARN L222 SmtUtils]: Spent 35.97s 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 18:45:11,266 INFO L134 LiptonReduction]: Checked pairs total: 10811 [2023-01-27 18:45:11,266 INFO L136 LiptonReduction]: Total number of compositions: 873 [2023-01-27 18:45:11,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:45:11,280 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;@25d586f0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:45:11,280 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-01-27 18:45:11,289 INFO L130 PetriNetUnfolder]: 6/12 cut-off events. [2023-01-27 18:45:11,289 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:45:11,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:45:11,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-27 18:45:11,290 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:45:11,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:45:11,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2899248, now seen corresponding path program 1 times [2023-01-27 18:45:11,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:45:11,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532602562] [2023-01-27 18:45:11,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:45:11,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:45:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:45:11,630 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 18:45:11,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:45:11,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532602562] [2023-01-27 18:45:11,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532602562] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:45:11,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:45:11,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 18:45:11,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159344732] [2023-01-27 18:45:11,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:45:11,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-27 18:45:11,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:45:11,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-27 18:45:11,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-27 18:45:11,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 1661 [2023-01-27 18:45:11,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 49 transitions, 107 flow. Second operand has 2 states, 2 states have (on average 751.5) internal successors, (1503), 2 states have internal predecessors, (1503), 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 18:45:11,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:45:11,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 1661 [2023-01-27 18:45:11,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:45:11,853 INFO L130 PetriNetUnfolder]: 79/159 cut-off events. [2023-01-27 18:45:11,854 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-01-27 18:45:11,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 159 events. 79/159 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 450 event pairs, 69 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 236. Up to 160 conditions per place. [2023-01-27 18:45:11,855 INFO L137 encePairwiseOnDemand]: 1648/1661 looper letters, 36 selfloop transitions, 0 changer transitions 0/36 dead transitions. [2023-01-27 18:45:11,855 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 153 flow [2023-01-27 18:45:11,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-27 18:45:11,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-27 18:45:11,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1549 transitions. [2023-01-27 18:45:11,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46628537025888017 [2023-01-27 18:45:11,871 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1549 transitions. [2023-01-27 18:45:11,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1549 transitions. [2023-01-27 18:45:11,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:45:11,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1549 transitions. [2023-01-27 18:45:11,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 774.5) internal successors, (1549), 2 states have internal predecessors, (1549), 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 18:45:11,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1661.0) internal successors, (4983), 3 states have internal predecessors, (4983), 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 18:45:11,889 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1661.0) internal successors, (4983), 3 states have internal predecessors, (4983), 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 18:45:11,891 INFO L175 Difference]: Start difference. First operand has 35 places, 49 transitions, 107 flow. Second operand 2 states and 1549 transitions. [2023-01-27 18:45:11,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 153 flow [2023-01-27 18:45:11,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 36 transitions, 148 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 18:45:11,894 INFO L231 Difference]: Finished difference. Result has 31 places, 36 transitions, 76 flow [2023-01-27 18:45:11,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=76, PETRI_PLACES=31, PETRI_TRANSITIONS=36} [2023-01-27 18:45:11,897 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -4 predicate places. [2023-01-27 18:45:11,898 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 36 transitions, 76 flow [2023-01-27 18:45:11,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 751.5) internal successors, (1503), 2 states have internal predecessors, (1503), 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 18:45:11,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:45:11,899 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-27 18:45:11,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:45:11,899 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:45:11,899 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:45:11,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1507659460, now seen corresponding path program 1 times [2023-01-27 18:45:11,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:45:11,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559420272] [2023-01-27 18:45:11,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:45:11,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:45:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:45:12,522 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 18:45:12,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:45:12,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559420272] [2023-01-27 18:45:12,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559420272] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:45:12,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:45:12,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:45:12,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199043227] [2023-01-27 18:45:12,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:45:12,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:45:12,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:45:12,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:45:12,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:45:12,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 732 out of 1661 [2023-01-27 18:45:12,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 36 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 733.6666666666666) internal successors, (2201), 3 states have internal predecessors, (2201), 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 18:45:12,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:45:12,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 732 of 1661 [2023-01-27 18:45:12,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:45:12,737 INFO L130 PetriNetUnfolder]: 79/160 cut-off events. [2023-01-27 18:45:12,738 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-01-27 18:45:12,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 160 events. 79/160 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 450 event pairs, 69 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 329. Up to 160 conditions per place. [2023-01-27 18:45:12,739 INFO L137 encePairwiseOnDemand]: 1657/1661 looper letters, 35 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-01-27 18:45:12,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 37 transitions, 152 flow [2023-01-27 18:45:12,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:45:12,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:45:12,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2235 transitions. [2023-01-27 18:45:12,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44852498494882603 [2023-01-27 18:45:12,744 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2235 transitions. [2023-01-27 18:45:12,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2235 transitions. [2023-01-27 18:45:12,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:45:12,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2235 transitions. [2023-01-27 18:45:12,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 745.0) internal successors, (2235), 3 states have internal predecessors, (2235), 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 18:45:12,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 18:45:12,758 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 18:45:12,758 INFO L175 Difference]: Start difference. First operand has 31 places, 36 transitions, 76 flow. Second operand 3 states and 2235 transitions. [2023-01-27 18:45:12,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 37 transitions, 152 flow [2023-01-27 18:45:12,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-27 18:45:12,759 INFO L231 Difference]: Finished difference. Result has 34 places, 37 transitions, 90 flow [2023-01-27 18:45:12,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=34, PETRI_TRANSITIONS=37} [2023-01-27 18:45:12,760 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-01-27 18:45:12,760 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 37 transitions, 90 flow [2023-01-27 18:45:12,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 733.6666666666666) internal successors, (2201), 3 states have internal predecessors, (2201), 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 18:45:12,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:45:12,762 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-27 18:45:12,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:45:12,763 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:45:12,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:45:12,765 INFO L85 PathProgramCache]: Analyzing trace with hash 406583551, now seen corresponding path program 1 times [2023-01-27 18:45:12,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:45:12,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734315911] [2023-01-27 18:45:12,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:45:12,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:45:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:45:13,529 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 18:45:13,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:45:13,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734315911] [2023-01-27 18:45:13,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734315911] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:45:13,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233269447] [2023-01-27 18:45:13,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:45:13,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:45:13,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:45:13,532 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 18:45:13,541 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 18:45:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:45:13,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-27 18:45:13,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:45:13,925 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 18:45:13,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:45:13,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233269447] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:45:13,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:45:13,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-01-27 18:45:13,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012298724] [2023-01-27 18:45:13,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:45:13,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:45:13,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:45:13,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:45:13,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:45:13,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 697 out of 1661 [2023-01-27 18:45:13,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 37 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 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 18:45:13,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:45:13,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 697 of 1661 [2023-01-27 18:45:13,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:45:14,409 INFO L130 PetriNetUnfolder]: 109/227 cut-off events. [2023-01-27 18:45:14,410 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-01-27 18:45:14,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 227 events. 109/227 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 836 event pairs, 34 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 473. Up to 156 conditions per place. [2023-01-27 18:45:14,411 INFO L137 encePairwiseOnDemand]: 1656/1661 looper letters, 44 selfloop transitions, 4 changer transitions 0/48 dead transitions. [2023-01-27 18:45:14,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 48 transitions, 211 flow [2023-01-27 18:45:14,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:45:14,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:45:14,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2139 transitions. [2023-01-27 18:45:14,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4292594822396147 [2023-01-27 18:45:14,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2139 transitions. [2023-01-27 18:45:14,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2139 transitions. [2023-01-27 18:45:14,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:45:14,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2139 transitions. [2023-01-27 18:45:14,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 713.0) internal successors, (2139), 3 states have internal predecessors, (2139), 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 18:45:14,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 18:45:14,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 18:45:14,430 INFO L175 Difference]: Start difference. First operand has 34 places, 37 transitions, 90 flow. Second operand 3 states and 2139 transitions. [2023-01-27 18:45:14,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 48 transitions, 211 flow [2023-01-27 18:45:14,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 48 transitions, 207 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-27 18:45:14,431 INFO L231 Difference]: Finished difference. Result has 36 places, 40 transitions, 112 flow [2023-01-27 18:45:14,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=36, PETRI_TRANSITIONS=40} [2023-01-27 18:45:14,432 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-01-27 18:45:14,432 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 40 transitions, 112 flow [2023-01-27 18:45:14,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 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 18:45:14,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:45:14,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:45:14,457 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 18:45:14,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:45:14,642 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:45:14,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:45:14,642 INFO L85 PathProgramCache]: Analyzing trace with hash -280812396, now seen corresponding path program 1 times [2023-01-27 18:45:14,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:45:14,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168155440] [2023-01-27 18:45:14,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:45:14,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:45:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:45:15,114 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 18:45:15,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:45:15,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168155440] [2023-01-27 18:45:15,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168155440] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:45:15,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537316188] [2023-01-27 18:45:15,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:45:15,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:45:15,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:45:15,117 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 18:45:15,119 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 18:45:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:45:15,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 284 conjunts are in the unsatisfiable core [2023-01-27 18:45:15,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:45:16,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:45:16,233 INFO L217 Elim1Store]: Index analysis took 138 ms [2023-01-27 18:45:22,161 WARN L222 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 1211 DAG size of output: 275 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-27 18:45:22,181 INFO L321 Elim1Store]: treesize reduction 8656, result has 6.5 percent of original size [2023-01-27 18:45:22,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 18 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 70 case distinctions, treesize of input 710 treesize of output 1213 [2023-01-27 18:45:26,933 INFO L321 Elim1Store]: treesize reduction 83, result has 27.2 percent of original size [2023-01-27 18:45:26,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 393 treesize of output 400 [2023-01-27 18:45:27,037 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-01-27 18:45:27,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 346 [2023-01-27 18:45:27,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 335 [2023-01-27 18:45:27,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 329 [2023-01-27 18:45:27,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 323 [2023-01-27 18:45:27,250 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-01-27 18:45:27,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2023-01-27 18:45:27,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-01-27 18:45:27,300 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 18:45:27,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:45:27,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537316188] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:45:27,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:45:27,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2023-01-27 18:45:27,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429898544] [2023-01-27 18:45:27,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:45:27,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-27 18:45:27,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:45:27,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-27 18:45:27,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:45:27,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 638 out of 1661 [2023-01-27 18:45:27,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 40 transitions, 112 flow. Second operand has 6 states, 6 states have (on average 639.1666666666666) internal successors, (3835), 6 states have internal predecessors, (3835), 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 18:45:27,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:45:27,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 638 of 1661 [2023-01-27 18:45:27,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:45:28,316 INFO L130 PetriNetUnfolder]: 192/407 cut-off events. [2023-01-27 18:45:28,316 INFO L131 PetriNetUnfolder]: For 100/100 co-relation queries the response was YES. [2023-01-27 18:45:28,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 987 conditions, 407 events. 192/407 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1810 event pairs, 115 based on Foata normal form. 9/376 useless extension candidates. Maximal degree in co-relation 981. Up to 217 conditions per place. [2023-01-27 18:45:28,318 INFO L137 encePairwiseOnDemand]: 1651/1661 looper letters, 55 selfloop transitions, 11 changer transitions 1/67 dead transitions. [2023-01-27 18:45:28,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 67 transitions, 331 flow [2023-01-27 18:45:28,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 18:45:28,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 18:45:28,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3252 transitions. [2023-01-27 18:45:28,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39157134256472004 [2023-01-27 18:45:28,325 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3252 transitions. [2023-01-27 18:45:28,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3252 transitions. [2023-01-27 18:45:28,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:45:28,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3252 transitions. [2023-01-27 18:45:28,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 650.4) internal successors, (3252), 5 states have internal predecessors, (3252), 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 18:45:28,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1661.0) internal successors, (9966), 6 states have internal predecessors, (9966), 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 18:45:28,342 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1661.0) internal successors, (9966), 6 states have internal predecessors, (9966), 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 18:45:28,342 INFO L175 Difference]: Start difference. First operand has 36 places, 40 transitions, 112 flow. Second operand 5 states and 3252 transitions. [2023-01-27 18:45:28,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 67 transitions, 331 flow [2023-01-27 18:45:28,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 67 transitions, 323 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 18:45:28,346 INFO L231 Difference]: Finished difference. Result has 41 places, 45 transitions, 176 flow [2023-01-27 18:45:28,346 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=41, PETRI_TRANSITIONS=45} [2023-01-27 18:45:28,348 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2023-01-27 18:45:28,348 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 45 transitions, 176 flow [2023-01-27 18:45:28,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 639.1666666666666) internal successors, (3835), 6 states have internal predecessors, (3835), 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 18:45:28,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:45:28,350 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:45:28,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-01-27 18:45:28,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-01-27 18:45:28,559 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:45:28,559 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:45:28,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1253748659, now seen corresponding path program 1 times [2023-01-27 18:45:28,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:45:28,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55594739] [2023-01-27 18:45:28,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:45:28,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:45:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:45:28,824 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 18:45:28,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:45:28,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55594739] [2023-01-27 18:45:28,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55594739] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:45:28,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:45:28,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 18:45:28,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65339040] [2023-01-27 18:45:28,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:45:28,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:45:28,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:45:28,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:45:28,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:45:28,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 742 out of 1661 [2023-01-27 18:45:28,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 45 transitions, 176 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 18:45:28,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:45:28,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 742 of 1661 [2023-01-27 18:45:28,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:45:29,153 INFO L130 PetriNetUnfolder]: 191/405 cut-off events. [2023-01-27 18:45:29,154 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-27 18:45:29,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 405 events. 191/405 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1701 event pairs, 155 based on Foata normal form. 0/368 useless extension candidates. Maximal degree in co-relation 1098. Up to 405 conditions per place. [2023-01-27 18:45:29,155 INFO L137 encePairwiseOnDemand]: 1659/1661 looper letters, 42 selfloop transitions, 1 changer transitions 0/43 dead transitions. [2023-01-27 18:45:29,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 258 flow [2023-01-27 18:45:29,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:45:29,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:45:29,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2261 transitions. [2023-01-27 18:45:29,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4537427252659041 [2023-01-27 18:45:29,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2261 transitions. [2023-01-27 18:45:29,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2261 transitions. [2023-01-27 18:45:29,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:45:29,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2261 transitions. [2023-01-27 18:45:29,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 753.6666666666666) internal successors, (2261), 3 states have internal predecessors, (2261), 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 18:45:29,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 18:45:29,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 18:45:29,169 INFO L175 Difference]: Start difference. First operand has 41 places, 45 transitions, 176 flow. Second operand 3 states and 2261 transitions. [2023-01-27 18:45:29,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 258 flow [2023-01-27 18:45:29,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 43 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:45:29,171 INFO L231 Difference]: Finished difference. Result has 40 places, 43 transitions, 166 flow [2023-01-27 18:45:29,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=40, PETRI_TRANSITIONS=43} [2023-01-27 18:45:29,172 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2023-01-27 18:45:29,172 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 43 transitions, 166 flow [2023-01-27 18:45:29,173 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 18:45:29,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:45:29,173 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:45:29,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-27 18:45:29,173 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:45:29,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:45:29,173 INFO L85 PathProgramCache]: Analyzing trace with hash 194489575, now seen corresponding path program 1 times [2023-01-27 18:45:29,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:45:29,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316759748] [2023-01-27 18:45:29,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:45:29,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:45:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:45:29,700 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 18:45:29,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:45:29,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316759748] [2023-01-27 18:45:29,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316759748] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:45:29,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740020592] [2023-01-27 18:45:29,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:45:29,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:45:29,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:45:29,705 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 18:45:29,707 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 18:45:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:45:30,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-27 18:45:30,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:45:30,623 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 18:45:30,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:45:30,756 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 18:45:30,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740020592] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:45:30,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:45:30,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-01-27 18:45:30,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127577809] [2023-01-27 18:45:30,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:45:30,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-27 18:45:30,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:45:30,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-27 18:45:30,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:45:30,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1661 [2023-01-27 18:45:30,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 43 transitions, 166 flow. Second operand has 8 states, 8 states have (on average 730.0) internal successors, (5840), 8 states have internal predecessors, (5840), 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 18:45:30,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:45:30,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1661 [2023-01-27 18:45:30,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:45:31,152 INFO L130 PetriNetUnfolder]: 191/410 cut-off events. [2023-01-27 18:45:31,152 INFO L131 PetriNetUnfolder]: For 205/205 co-relation queries the response was YES. [2023-01-27 18:45:31,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1118 conditions, 410 events. 191/410 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1614 event pairs, 155 based on Foata normal form. 3/375 useless extension candidates. Maximal degree in co-relation 1110. Up to 400 conditions per place. [2023-01-27 18:45:31,154 INFO L137 encePairwiseOnDemand]: 1654/1661 looper letters, 37 selfloop transitions, 11 changer transitions 0/48 dead transitions. [2023-01-27 18:45:31,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 48 transitions, 278 flow [2023-01-27 18:45:31,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-27 18:45:31,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-27 18:45:31,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 5144 transitions. [2023-01-27 18:45:31,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4424185086436742 [2023-01-27 18:45:31,161 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 5144 transitions. [2023-01-27 18:45:31,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 5144 transitions. [2023-01-27 18:45:31,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:45:31,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 5144 transitions. [2023-01-27 18:45:31,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 734.8571428571429) internal successors, (5144), 7 states have internal predecessors, (5144), 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 18:45:31,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1661.0) internal successors, (13288), 8 states have internal predecessors, (13288), 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 18:45:31,180 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1661.0) internal successors, (13288), 8 states have internal predecessors, (13288), 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 18:45:31,180 INFO L175 Difference]: Start difference. First operand has 40 places, 43 transitions, 166 flow. Second operand 7 states and 5144 transitions. [2023-01-27 18:45:31,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 48 transitions, 278 flow [2023-01-27 18:45:31,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 48 transitions, 277 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 18:45:31,183 INFO L231 Difference]: Finished difference. Result has 45 places, 48 transitions, 207 flow [2023-01-27 18:45:31,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=207, PETRI_PLACES=45, PETRI_TRANSITIONS=48} [2023-01-27 18:45:31,185 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2023-01-27 18:45:31,185 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 207 flow [2023-01-27 18:45:31,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 730.0) internal successors, (5840), 8 states have internal predecessors, (5840), 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 18:45:31,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:45:31,187 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:45:31,199 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 18:45:31,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:45:31,398 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:45:31,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:45:31,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1968621724, now seen corresponding path program 2 times [2023-01-27 18:45:31,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:45:31,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537890564] [2023-01-27 18:45:31,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:45:31,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:45:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:45:32,276 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 18:45:32,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:45:32,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537890564] [2023-01-27 18:45:32,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537890564] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:45:32,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508006296] [2023-01-27 18:45:32,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:45:32,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:45:32,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:45:32,277 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 18:45:32,327 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 18:45:33,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 18:45:33,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:45:33,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 22 conjunts are in the unsatisfiable core [2023-01-27 18:45:33,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:45:33,433 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 18:45:33,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:45:33,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508006296] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:45:33,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:45:33,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2023-01-27 18:45:33,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076254245] [2023-01-27 18:45:33,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:45:33,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:45:33,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:45:33,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:45:33,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:45:33,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 739 out of 1661 [2023-01-27 18:45:33,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 742.3333333333334) internal successors, (2227), 3 states have internal predecessors, (2227), 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 18:45:33,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:45:33,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 739 of 1661 [2023-01-27 18:45:33,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:45:33,764 INFO L130 PetriNetUnfolder]: 157/344 cut-off events. [2023-01-27 18:45:33,764 INFO L131 PetriNetUnfolder]: For 176/176 co-relation queries the response was YES. [2023-01-27 18:45:33,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 344 events. 157/344 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1293 event pairs, 49 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 901. Up to 192 conditions per place. [2023-01-27 18:45:33,765 INFO L137 encePairwiseOnDemand]: 1657/1661 looper letters, 42 selfloop transitions, 3 changer transitions 6/51 dead transitions. [2023-01-27 18:45:33,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 51 transitions, 310 flow [2023-01-27 18:45:33,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:45:33,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:45:33,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2257 transitions. [2023-01-27 18:45:33,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4529399959863536 [2023-01-27 18:45:33,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2257 transitions. [2023-01-27 18:45:33,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2257 transitions. [2023-01-27 18:45:33,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:45:33,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2257 transitions. [2023-01-27 18:45:33,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 752.3333333333334) internal successors, (2257), 3 states have internal predecessors, (2257), 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 18:45:33,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 18:45:33,778 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1661.0) internal successors, (6644), 4 states have internal predecessors, (6644), 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 18:45:33,778 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 207 flow. Second operand 3 states and 2257 transitions. [2023-01-27 18:45:33,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 51 transitions, 310 flow [2023-01-27 18:45:33,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 288 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-01-27 18:45:33,779 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 156 flow [2023-01-27 18:45:33,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2023-01-27 18:45:33,780 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2023-01-27 18:45:33,780 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 156 flow [2023-01-27 18:45:33,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 742.3333333333334) internal successors, (2227), 3 states have internal predecessors, (2227), 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 18:45:33,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:45:33,781 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:45:33,792 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 18:45:33,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:45:33,990 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:45:33,990 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:45:33,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1705656848, now seen corresponding path program 1 times [2023-01-27 18:45:33,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:45:33,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801853166] [2023-01-27 18:45:33,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:45:33,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:45:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:45:34,930 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 18:45:34,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:45:34,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801853166] [2023-01-27 18:45:34,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801853166] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:45:34,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707458519] [2023-01-27 18:45:34,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:45:34,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:45:34,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:45:34,931 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 18:45:34,933 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 18:45:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:45:35,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 15 conjunts are in the unsatisfiable core [2023-01-27 18:45:35,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:45:35,927 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 18:45:35,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:45:36,096 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 18:45:36,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707458519] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:45:36,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:45:36,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-01-27 18:45:36,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140393226] [2023-01-27 18:45:36,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:45:36,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-27 18:45:36,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:45:36,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-27 18:45:36,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-01-27 18:45:36,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1661 [2023-01-27 18:45:36,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 156 flow. Second operand has 17 states, 17 states have (on average 729.5882352941177) internal successors, (12403), 17 states have internal predecessors, (12403), 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 18:45:36,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:45:36,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1661 [2023-01-27 18:45:36,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:45:39,123 INFO L130 PetriNetUnfolder]: 67/177 cut-off events. [2023-01-27 18:45:39,123 INFO L131 PetriNetUnfolder]: For 146/146 co-relation queries the response was YES. [2023-01-27 18:45:39,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 177 events. 67/177 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 463 event pairs, 53 based on Foata normal form. 6/175 useless extension candidates. Maximal degree in co-relation 556. Up to 163 conditions per place. [2023-01-27 18:45:39,124 INFO L137 encePairwiseOnDemand]: 1654/1661 looper letters, 33 selfloop transitions, 17 changer transitions 0/50 dead transitions. [2023-01-27 18:45:39,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 50 transitions, 292 flow [2023-01-27 18:45:39,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-27 18:45:39,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-27 18:45:39,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8796 transitions. [2023-01-27 18:45:39,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44130042143287174 [2023-01-27 18:45:39,135 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 8796 transitions. [2023-01-27 18:45:39,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 8796 transitions. [2023-01-27 18:45:39,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:45:39,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 8796 transitions. [2023-01-27 18:45:39,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 733.0) internal successors, (8796), 12 states have internal predecessors, (8796), 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 18:45:39,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1661.0) internal successors, (21593), 13 states have internal predecessors, (21593), 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 18:45:39,165 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1661.0) internal successors, (21593), 13 states have internal predecessors, (21593), 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 18:45:39,165 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 156 flow. Second operand 12 states and 8796 transitions. [2023-01-27 18:45:39,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 50 transitions, 292 flow [2023-01-27 18:45:39,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 50 transitions, 286 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:45:39,167 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 276 flow [2023-01-27 18:45:39,167 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=276, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2023-01-27 18:45:39,167 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 20 predicate places. [2023-01-27 18:45:39,167 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 276 flow [2023-01-27 18:45:39,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 729.5882352941177) internal successors, (12403), 17 states have internal predecessors, (12403), 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 18:45:39,171 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:45:39,171 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:45:39,181 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 18:45:39,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:45:39,381 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:45:39,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:45:39,382 INFO L85 PathProgramCache]: Analyzing trace with hash 580811568, now seen corresponding path program 2 times [2023-01-27 18:45:39,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:45:39,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549698097] [2023-01-27 18:45:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:45:39,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:45:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:45:40,481 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 18:45:40,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:45:40,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549698097] [2023-01-27 18:45:40,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549698097] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:45:40,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639031684] [2023-01-27 18:45:40,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:45:40,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:45:40,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:45:40,483 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 18:45:40,485 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 18:45:42,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-27 18:45:42,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:45:42,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 27 conjunts are in the unsatisfiable core [2023-01-27 18:45:42,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:45:43,016 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 18:45:43,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:45:43,451 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 18:45:43,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639031684] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:45:43,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:45:43,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-01-27 18:45:43,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484903691] [2023-01-27 18:45:43,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:45:43,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-01-27 18:45:43,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:45:43,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-01-27 18:45:43,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=871, Unknown=0, NotChecked=0, Total=1190 [2023-01-27 18:45:43,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1661 [2023-01-27 18:45:43,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 276 flow. Second operand has 35 states, 35 states have (on average 729.2857142857143) internal successors, (25525), 35 states have internal predecessors, (25525), 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 18:45:43,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:45:43,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1661 [2023-01-27 18:45:43,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:45:57,358 WARN L222 SmtUtils]: Spent 5.59s 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 18:46:16,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-27 18:46:16,970 INFO L130 PetriNetUnfolder]: 67/195 cut-off events. [2023-01-27 18:46:16,970 INFO L131 PetriNetUnfolder]: For 605/605 co-relation queries the response was YES. [2023-01-27 18:46:16,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 195 events. 67/195 cut-off events. For 605/605 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 450 event pairs, 53 based on Foata normal form. 30/220 useless extension candidates. Maximal degree in co-relation 631. Up to 163 conditions per place. [2023-01-27 18:46:16,971 INFO L137 encePairwiseOnDemand]: 1654/1661 looper letters, 33 selfloop transitions, 35 changer transitions 0/68 dead transitions. [2023-01-27 18:46:16,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 68 transitions, 520 flow [2023-01-27 18:46:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-27 18:46:16,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-27 18:46:16,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 17565 transitions. [2023-01-27 18:46:16,992 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44062311860325104 [2023-01-27 18:46:16,993 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 17565 transitions. [2023-01-27 18:46:16,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 17565 transitions. [2023-01-27 18:46:16,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:46:16,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 17565 transitions. [2023-01-27 18:46:17,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 731.875) internal successors, (17565), 24 states have internal predecessors, (17565), 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 18:46:17,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 1661.0) internal successors, (41525), 25 states have internal predecessors, (41525), 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 18:46:17,045 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 1661.0) internal successors, (41525), 25 states have internal predecessors, (41525), 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 18:46:17,045 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 276 flow. Second operand 24 states and 17565 transitions. [2023-01-27 18:46:17,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 68 transitions, 520 flow [2023-01-27 18:46:17,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 68 transitions, 496 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-01-27 18:46:17,049 INFO L231 Difference]: Finished difference. Result has 88 places, 68 transitions, 540 flow [2023-01-27 18:46:17,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1661, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=540, PETRI_PLACES=88, PETRI_TRANSITIONS=68} [2023-01-27 18:46:17,050 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 53 predicate places. [2023-01-27 18:46:17,050 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 68 transitions, 540 flow [2023-01-27 18:46:17,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 729.2857142857143) internal successors, (25525), 35 states have internal predecessors, (25525), 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 18:46:17,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:46:17,053 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:46:17,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-01-27 18:46:17,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:46:17,266 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 18:46:17,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:46:17,266 INFO L85 PathProgramCache]: Analyzing trace with hash 609412464, now seen corresponding path program 3 times [2023-01-27 18:46:17,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:46:17,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396161660] [2023-01-27 18:46:17,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:46:17,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:46:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:46:19,094 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 18:46:19,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:46:19,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396161660] [2023-01-27 18:46:19,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396161660] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:46:19,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47618252] [2023-01-27 18:46:19,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-27 18:46:19,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:46:19,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:46:19,096 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 18:46:19,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process Received shutdown request... [2023-01-27 18:51:32,827 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 18:51:32,828 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 18:51:33,869 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 18:51:34,028 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forcibly destroying the process [2023-01-27 18:51:34,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-01-27 18:51:34,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:51:34,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2023-01-27 18:51:34,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828538626] [2023-01-27 18:51:34,043 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-01-27 18:51:34,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-01-27 18:51:34,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:51:34,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-01-27 18:51:34,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2023-01-27 18:51:34,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 137 [2023-01-27 18:51:34,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1661 [2023-01-27 18:51:34,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 68 transitions, 540 flow. Second operand has 25 states, 25 states have (on average 729.32) internal successors, (18233), 25 states have internal predecessors, (18233), 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 18:51:34,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:51:34,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1661 [2023-01-27 18:51:34,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:51:34,071 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2023-01-27 18:51:34,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-27 18:51:34,072 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-01-27 18:51:34,073 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2023-01-27 18:51:34,073 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2023-01-27 18:51:34,073 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2023-01-27 18:51:34,073 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-01-27 18:51:34,073 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2023-01-27 18:51:34,073 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2023-01-27 18:51:34,073 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2023-01-27 18:51:34,073 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2023-01-27 18:51:34,073 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2023-01-27 18:51:34,076 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 18:51:34,076 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 18:51:34,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 06:51:34 BasicIcfg [2023-01-27 18:51:34,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 18:51:34,078 INFO L158 Benchmark]: Toolchain (without parser) took 864442.90ms. Allocated memory was 371.2MB in the beginning and 1.3GB in the end (delta: 968.9MB). Free memory was 303.2MB in the beginning and 646.8MB in the end (delta: -343.6MB). Peak memory consumption was 625.6MB. Max. memory is 16.0GB. [2023-01-27 18:51:34,078 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 371.2MB. Free memory is still 320.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:51:34,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3602.90ms. Allocated memory was 371.2MB in the beginning and 490.7MB in the end (delta: 119.5MB). Free memory was 303.0MB in the beginning and 376.5MB in the end (delta: -73.5MB). Peak memory consumption was 121.0MB. Max. memory is 16.0GB. [2023-01-27 18:51:34,079 INFO L158 Benchmark]: Boogie Procedure Inliner took 173.47ms. Allocated memory is still 490.7MB. Free memory was 376.5MB in the beginning and 365.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-27 18:51:34,079 INFO L158 Benchmark]: Boogie Preprocessor took 60.07ms. Allocated memory is still 490.7MB. Free memory was 365.0MB in the beginning and 359.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-01-27 18:51:34,079 INFO L158 Benchmark]: RCFGBuilder took 985.63ms. Allocated memory is still 490.7MB. Free memory was 359.8MB in the beginning and 406.3MB in the end (delta: -46.5MB). Peak memory consumption was 61.5MB. Max. memory is 16.0GB. [2023-01-27 18:51:34,079 INFO L158 Benchmark]: TraceAbstraction took 859614.61ms. Allocated memory was 490.7MB in the beginning and 1.3GB in the end (delta: 849.3MB). Free memory was 405.2MB in the beginning and 646.8MB in the end (delta: -241.6MB). Peak memory consumption was 606.7MB. Max. memory is 16.0GB. [2023-01-27 18:51:34,080 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 371.2MB. Free memory is still 320.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 3602.90ms. Allocated memory was 371.2MB in the beginning and 490.7MB in the end (delta: 119.5MB). Free memory was 303.0MB in the beginning and 376.5MB in the end (delta: -73.5MB). Peak memory consumption was 121.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 173.47ms. Allocated memory is still 490.7MB. Free memory was 376.5MB in the beginning and 365.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Preprocessor took 60.07ms. Allocated memory is still 490.7MB. Free memory was 365.0MB in the beginning and 359.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * RCFGBuilder took 985.63ms. Allocated memory is still 490.7MB. Free memory was 359.8MB in the beginning and 406.3MB in the end (delta: -46.5MB). Peak memory consumption was 61.5MB. Max. memory is 16.0GB. * TraceAbstraction took 859614.61ms. Allocated memory was 490.7MB in the beginning and 1.3GB in the end (delta: 849.3MB). Free memory was 405.2MB in the beginning and 646.8MB in the end (delta: -241.6MB). Peak memory consumption was 606.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 476.5s, 731 PlacesBefore, 35 PlacesAfterwards, 778 TransitionsBefore, 49 TransitionsAfterwards, 12132 CoEnabledTransitionPairs, 11 FixpointIterations, 560 TrivialSequentialCompositions, 166 ConcurrentSequentialCompositions, 83 TrivialYvCompositions, 31 ConcurrentYvCompositions, 33 ChoiceCompositions, 873 TotalNumberOfCompositions, 10811 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9807, independent: 9735, independent conditional: 0, independent unconditional: 9735, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6586, independent: 6569, independent conditional: 0, independent unconditional: 6569, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9807, independent: 3166, independent conditional: 0, independent unconditional: 3166, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 6586, unknown conditional: 0, unknown unconditional: 6586] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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: 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: 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: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 900 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: 859.5s, OverallIterations: 10, TraceHistogramMax: 22, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 39.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 476.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 11.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 11.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1602 IncrementalHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 131 mSolverCounterUnsat, 0 mSDtfsCounter, 1602 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 202 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 28.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=540occurred in iteration=9, InterpolantAutomatonStates: 62, 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: 0.3s SsaConstructionTime, 6.4s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 195 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 222 ConstructedInterpolants, 1 QuantifiedInterpolants, 1496 SizeOfPredicates, 115 NumberOfNonLiveVariables, 6971 ConjunctsInSsa, 372 ConjunctsInUnsatCore, 19 InterpolantComputations, 6 PerfectInterpolantSequences, 13/476 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