/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_configure_pc8736x_gpio_current.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:38:37,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:38:37,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:38:37,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:38:37,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:38:37,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:38:37,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:38:37,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:38:37,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:38:37,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:38:37,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:38:37,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:38:37,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:38:37,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:38:37,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:38:37,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:38:37,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:38:37,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:38:37,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:38:37,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:38:37,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:38:37,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:38:37,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:38:37,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:38:37,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 18:38:37,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 18:38:37,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 18:38:37,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 18:38:37,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 18:38:37,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 18:38:37,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 18:38:37,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 18:38:37,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 18:38:37,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 18:38:37,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 18:38:37,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 18:38:37,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 18:38:37,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 18:38:37,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:38:37,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:38:37,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:38:37,883 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 18:38:37,912 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:38:37,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:38:37,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:38:37,913 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:38:37,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:38:37,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:38:37,914 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:38:37,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:38:37,914 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:38:37,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:38:37,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:38:37,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:38:37,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:38:37,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:38:37,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:38:37,915 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:38:37,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:38:37,916 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:38:37,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:38:37,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:38:37,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:38:37,916 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:38:37,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:38:37,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:38:37,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:38:37,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:38:37,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:38:37,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:38:37,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:38:37,918 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:38:37,918 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:38:37,918 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:38:38,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:38:38,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:38:38,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:38:38,318 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:38:38,318 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:38:38,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i [2023-01-27 18:38:39,765 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:38:40,407 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:38:40,408 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i [2023-01-27 18:38:40,452 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b14d29746/fb37126b74cd4c2c802a1bcb5ab9af52/FLAG99b954236 [2023-01-27 18:38:40,477 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b14d29746/fb37126b74cd4c2c802a1bcb5ab9af52 [2023-01-27 18:38:40,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:38:40,480 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:38:40,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:38:40,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:38:40,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:38:40,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:38:40" (1/1) ... [2023-01-27 18:38:40,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79fb8bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:40, skipping insertion in model container [2023-01-27 18:38:40,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:38:40" (1/1) ... [2023-01-27 18:38:40,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:38:40,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:38:41,049 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_configure_pc8736x_gpio_current.i[5469,5482] [2023-01-27 18:38:44,497 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:38:45,022 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:38:45,023 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:38:45,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:38:45,133 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:38:45,156 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_configure_pc8736x_gpio_current.i[5469,5482] [2023-01-27 18:38:45,322 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:38:45,451 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:38:45,451 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:38:45,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:38:45,970 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:38:45,970 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:38:45,970 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:38:45,970 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:38:45,970 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:38:45,970 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:38:45,970 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:38:45,974 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:38:45,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:45 WrapperNode [2023-01-27 18:38:45,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:38:45,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:38:45,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:38:45,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:38:45,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:45" (1/1) ... [2023-01-27 18:38:46,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:45" (1/1) ... [2023-01-27 18:38:46,162 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 68, statements flattened = 731 [2023-01-27 18:38:46,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:38:46,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:38:46,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:38:46,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:38:46,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:45" (1/1) ... [2023-01-27 18:38:46,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:45" (1/1) ... [2023-01-27 18:38:46,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:45" (1/1) ... [2023-01-27 18:38:46,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:45" (1/1) ... [2023-01-27 18:38:46,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:45" (1/1) ... [2023-01-27 18:38:46,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:45" (1/1) ... [2023-01-27 18:38:46,257 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:45" (1/1) ... [2023-01-27 18:38:46,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:45" (1/1) ... [2023-01-27 18:38:46,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:38:46,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:38:46,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:38:46,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:38:46,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:45" (1/1) ... [2023-01-27 18:38:46,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:38:46,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:38:46,310 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 18:38:46,340 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 18:38:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 18:38:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 18:38:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:38:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-27 18:38:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-01-27 18:38:46,383 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-01-27 18:38:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:38:46,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:38:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-27 18:38:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:38:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-27 18:38:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:38:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2023-01-27 18:38:46,384 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2023-01-27 18:38:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 18:38:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:38:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 18:38:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-27 18:38:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:38:46,385 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 18:38:46,858 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:38:46,859 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:38:47,968 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:38:48,007 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:38:48,007 INFO L302 CfgBuilder]: Removed 19 assume(true) statements. [2023-01-27 18:38:48,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:38:48 BoogieIcfgContainer [2023-01-27 18:38:48,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:38:48,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:38:48,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:38:48,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:38:48,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:38:40" (1/3) ... [2023-01-27 18:38:48,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c5ce1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:38:48, skipping insertion in model container [2023-01-27 18:38:48,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:38:45" (2/3) ... [2023-01-27 18:38:48,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c5ce1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:38:48, skipping insertion in model container [2023-01-27 18:38:48,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:38:48" (3/3) ... [2023-01-27 18:38:48,032 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i [2023-01-27 18:38:48,044 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:38:48,044 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-27 18:38:48,045 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:38:48,192 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 18:38:48,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 761 places, 801 transitions, 1618 flow [2023-01-27 18:38:48,444 INFO L130 PetriNetUnfolder]: 47/799 cut-off events. [2023-01-27 18:38:48,444 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:38:48,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 799 events. 47/799 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1092 event pairs, 0 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 629. Up to 9 conditions per place. [2023-01-27 18:38:48,473 INFO L82 GeneralOperation]: Start removeDead. Operand has 761 places, 801 transitions, 1618 flow [2023-01-27 18:38:48,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 751 places, 791 transitions, 1591 flow [2023-01-27 18:38:48,492 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:38:48,497 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 751 places, 791 transitions, 1591 flow [2023-01-27 18:38:48,499 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 751 places, 791 transitions, 1591 flow [2023-01-27 18:38:48,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 751 places, 791 transitions, 1591 flow [2023-01-27 18:38:48,684 INFO L130 PetriNetUnfolder]: 47/791 cut-off events. [2023-01-27 18:38:48,684 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 18:38:48,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 791 events. 47/791 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1005 event pairs, 0 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 629. Up to 9 conditions per place. [2023-01-27 18:38:48,691 INFO L119 LiptonReduction]: Number of co-enabled transitions 13172 [2023-01-27 18:40:45,409 WARN L222 SmtUtils]: Spent 17.91s on a formula simplification that was a NOOP. DAG size: 354 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:41:01,101 WARN L222 SmtUtils]: Spent 15.69s on a formula simplification that was a NOOP. DAG size: 324 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:41:22,389 WARN L222 SmtUtils]: Spent 21.28s on a formula simplification that was a NOOP. DAG size: 357 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:41:38,933 WARN L222 SmtUtils]: Spent 16.54s on a formula simplification that was a NOOP. DAG size: 327 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:41:44,259 WARN L222 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 253 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:41:53,503 WARN L222 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 280 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:42:01,811 WARN L222 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 280 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:44:54,498 WARN L222 SmtUtils]: Spent 2.83m on a formula simplification. DAG size of input: 583 DAG size of output: 581 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:46:13,661 WARN L222 SmtUtils]: Spent 1.32m 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 18:47:28,673 WARN L222 SmtUtils]: Spent 1.25m on a formula simplification. DAG size of input: 586 DAG size of output: 584 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:48:14,506 WARN L222 SmtUtils]: Spent 45.83s 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 18:48:35,106 INFO L134 LiptonReduction]: Checked pairs total: 11159 [2023-01-27 18:48:35,106 INFO L136 LiptonReduction]: Total number of compositions: 885 [2023-01-27 18:48:35,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:48:35,153 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;@db50669, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:48:35,153 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-27 18:48:35,160 INFO L130 PetriNetUnfolder]: 6/12 cut-off events. [2023-01-27 18:48:35,160 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:48:35,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:48:35,173 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-27 18:48:35,174 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 2 more)] === [2023-01-27 18:48:35,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:48:35,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2949892, now seen corresponding path program 1 times [2023-01-27 18:48:35,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:48:35,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995419351] [2023-01-27 18:48:35,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:48:35,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:48:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:48:35,959 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 18:48:35,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:48:35,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995419351] [2023-01-27 18:48:35,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995419351] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:48:35,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:48:35,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 18:48:35,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738863385] [2023-01-27 18:48:35,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:48:35,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-27 18:48:35,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:48:36,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-27 18:48:36,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-27 18:48:36,031 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 772 out of 1686 [2023-01-27 18:48:36,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 42 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 773.5) internal successors, (1547), 2 states have internal predecessors, (1547), 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 18:48:36,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:48:36,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 772 of 1686 [2023-01-27 18:48:36,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:48:36,438 INFO L130 PetriNetUnfolder]: 43/93 cut-off events. [2023-01-27 18:48:36,438 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-27 18:48:36,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 93 events. 43/93 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 229 event pairs, 33 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 128. Up to 94 conditions per place. [2023-01-27 18:48:36,439 INFO L137 encePairwiseOnDemand]: 1677/1686 looper letters, 30 selfloop transitions, 0 changer transitions 3/33 dead transitions. [2023-01-27 18:48:36,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 33 transitions, 141 flow [2023-01-27 18:48:36,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-27 18:48:36,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-27 18:48:36,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1586 transitions. [2023-01-27 18:48:36,485 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47034400948991695 [2023-01-27 18:48:36,486 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1586 transitions. [2023-01-27 18:48:36,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1586 transitions. [2023-01-27 18:48:36,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:48:36,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1586 transitions. [2023-01-27 18:48:36,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 793.0) internal successors, (1586), 2 states have internal predecessors, (1586), 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 18:48:36,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1686.0) internal successors, (5058), 3 states have internal predecessors, (5058), 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 18:48:36,536 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1686.0) internal successors, (5058), 3 states have internal predecessors, (5058), 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 18:48:36,537 INFO L175 Difference]: Start difference. First operand has 31 places, 42 transitions, 93 flow. Second operand 2 states and 1586 transitions. [2023-01-27 18:48:36,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 33 transitions, 141 flow [2023-01-27 18:48:36,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 33 transitions, 136 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 18:48:36,560 INFO L231 Difference]: Finished difference. Result has 28 places, 30 transitions, 63 flow [2023-01-27 18:48:36,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1686, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=63, PETRI_PLACES=28, PETRI_TRANSITIONS=30} [2023-01-27 18:48:36,571 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2023-01-27 18:48:36,571 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 30 transitions, 63 flow [2023-01-27 18:48:36,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 773.5) internal successors, (1547), 2 states have internal predecessors, (1547), 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 18:48:36,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:48:36,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-27 18:48:36,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:48:36,581 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 2 more)] === [2023-01-27 18:48:36,582 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:48:36,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1459000216, now seen corresponding path program 1 times [2023-01-27 18:48:36,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:48:36,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41552940] [2023-01-27 18:48:36,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:48:36,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:48:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:48:38,133 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 18:48:38,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:48:38,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41552940] [2023-01-27 18:48:38,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41552940] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:48:38,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:48:38,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:48:38,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620831680] [2023-01-27 18:48:38,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:48:38,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:48:38,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:48:38,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:48:38,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:48:38,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 1686 [2023-01-27 18:48:38,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 30 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 751.6666666666666) internal successors, (2255), 3 states have internal predecessors, (2255), 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 18:48:38,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:48:38,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 1686 [2023-01-27 18:48:38,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:48:38,614 INFO L130 PetriNetUnfolder]: 30/67 cut-off events. [2023-01-27 18:48:38,614 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:48:38,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 67 events. 30/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 149 event pairs, 20 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 141. Up to 67 conditions per place. [2023-01-27 18:48:38,615 INFO L137 encePairwiseOnDemand]: 1682/1686 looper letters, 29 selfloop transitions, 2 changer transitions 0/31 dead transitions. [2023-01-27 18:48:38,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 31 transitions, 127 flow [2023-01-27 18:48:38,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:48:38,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:48:38,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2283 transitions. [2023-01-27 18:48:38,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4513641755634638 [2023-01-27 18:48:38,635 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2283 transitions. [2023-01-27 18:48:38,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2283 transitions. [2023-01-27 18:48:38,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:48:38,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2283 transitions. [2023-01-27 18:48:38,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 761.0) internal successors, (2283), 3 states have internal predecessors, (2283), 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 18:48:38,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1686.0) internal successors, (6744), 4 states have internal predecessors, (6744), 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 18:48:38,670 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1686.0) internal successors, (6744), 4 states have internal predecessors, (6744), 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 18:48:38,670 INFO L175 Difference]: Start difference. First operand has 28 places, 30 transitions, 63 flow. Second operand 3 states and 2283 transitions. [2023-01-27 18:48:38,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 31 transitions, 127 flow [2023-01-27 18:48:38,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 31 transitions, 127 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-27 18:48:38,671 INFO L231 Difference]: Finished difference. Result has 28 places, 31 transitions, 77 flow [2023-01-27 18:48:38,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1686, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=28, PETRI_TRANSITIONS=31} [2023-01-27 18:48:38,672 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2023-01-27 18:48:38,672 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 31 transitions, 77 flow [2023-01-27 18:48:38,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 751.6666666666666) internal successors, (2255), 3 states have internal predecessors, (2255), 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 18:48:38,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:48:38,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-27 18:48:38,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:48:38,689 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 2 more)] === [2023-01-27 18:48:38,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:48:38,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1941188084, now seen corresponding path program 1 times [2023-01-27 18:48:38,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:48:38,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363374768] [2023-01-27 18:48:38,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:48:38,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:48:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:48:39,945 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 18:48:39,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:48:39,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363374768] [2023-01-27 18:48:39,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363374768] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:48:39,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956172071] [2023-01-27 18:48:39,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:48:39,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:48:39,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:48:39,955 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 18:48:39,963 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 18:48:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:48:40,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-27 18:48:40,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:48:41,064 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 18:48:41,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:48:41,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956172071] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:48:41,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:48:41,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-01-27 18:48:41,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248132989] [2023-01-27 18:48:41,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:48:41,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:48:41,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:48:41,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:48:41,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:48:41,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 726 out of 1686 [2023-01-27 18:48:41,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 31 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 728.0) internal successors, (2184), 3 states have internal predecessors, (2184), 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 18:48:41,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:48:41,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 726 of 1686 [2023-01-27 18:48:41,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:48:41,900 INFO L130 PetriNetUnfolder]: 30/73 cut-off events. [2023-01-27 18:48:41,900 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:48:41,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 73 events. 30/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 199 event pairs, 8 based on Foata normal form. 8/71 useless extension candidates. Maximal degree in co-relation 161. Up to 62 conditions per place. [2023-01-27 18:48:41,902 INFO L137 encePairwiseOnDemand]: 1681/1686 looper letters, 32 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2023-01-27 18:48:41,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 36 transitions, 161 flow [2023-01-27 18:48:41,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:48:41,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:48:41,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2214 transitions. [2023-01-27 18:48:41,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4377224199288256 [2023-01-27 18:48:41,906 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2214 transitions. [2023-01-27 18:48:41,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2214 transitions. [2023-01-27 18:48:41,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:48:41,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2214 transitions. [2023-01-27 18:48:41,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 738.0) internal successors, (2214), 3 states have internal predecessors, (2214), 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 18:48:41,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1686.0) internal successors, (6744), 4 states have internal predecessors, (6744), 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 18:48:41,925 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1686.0) internal successors, (6744), 4 states have internal predecessors, (6744), 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 18:48:41,925 INFO L175 Difference]: Start difference. First operand has 28 places, 31 transitions, 77 flow. Second operand 3 states and 2214 transitions. [2023-01-27 18:48:41,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 36 transitions, 161 flow [2023-01-27 18:48:41,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 157 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-27 18:48:41,926 INFO L231 Difference]: Finished difference. Result has 30 places, 34 transitions, 99 flow [2023-01-27 18:48:41,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1686, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=30, PETRI_TRANSITIONS=34} [2023-01-27 18:48:41,931 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2023-01-27 18:48:41,931 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 34 transitions, 99 flow [2023-01-27 18:48:41,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 728.0) internal successors, (2184), 3 states have internal predecessors, (2184), 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 18:48:41,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:48:41,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:48:41,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-27 18:48:42,149 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 18:48:42,150 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 2 more)] === [2023-01-27 18:48:42,150 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:48:42,150 INFO L85 PathProgramCache]: Analyzing trace with hash 47287872, now seen corresponding path program 1 times [2023-01-27 18:48:42,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:48:42,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499588682] [2023-01-27 18:48:42,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:48:42,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:48:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:48:43,337 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 18:48:43,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:48:43,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499588682] [2023-01-27 18:48:43,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499588682] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:48:43,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961399571] [2023-01-27 18:48:43,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:48:43,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:48:43,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:48:43,349 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 18:48:43,373 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 18:48:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:48:44,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 435 conjunts are in the unsatisfiable core [2023-01-27 18:48:44,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:48:45,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:48:45,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:48:45,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:48:45,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:48:45,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:48:45,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:48:45,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:00,385 WARN L222 SmtUtils]: Spent 14.66s on a formula simplification. DAG size of input: 1587 DAG size of output: 207 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-27 18:49:00,393 INFO L321 Elim1Store]: treesize reduction 10808, result has 3.4 percent of original size [2023-01-27 18:49:00,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 20 select indices, 20 select index equivalence classes, 4 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 228 case distinctions, treesize of input 925 treesize of output 1205 [2023-01-27 18:49:06,806 INFO L321 Elim1Store]: treesize reduction 130, result has 32.3 percent of original size [2023-01-27 18:49:06,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 428 treesize of output 464 [2023-01-27 18:49:06,964 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-01-27 18:49:06,964 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 327 treesize of output 326 [2023-01-27 18:49:06,997 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 315 treesize of output 315 [2023-01-27 18:49:07,029 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 309 treesize of output 309 [2023-01-27 18:49:07,099 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 303 treesize of output 303 [2023-01-27 18:49:07,264 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-01-27 18:49:07,291 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 18:49:07,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 64 [2023-01-27 18:49:07,524 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 18:49:07,572 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 18:49:07,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:49:07,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961399571] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:49:07,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:49:07,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2023-01-27 18:49:07,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109056672] [2023-01-27 18:49:07,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:49:07,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-27 18:49:07,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:49:07,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-27 18:49:07,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:49:07,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 667 out of 1686 [2023-01-27 18:49:07,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 34 transitions, 99 flow. Second operand has 6 states, 6 states have (on average 668.1666666666666) internal successors, (4009), 6 states have internal predecessors, (4009), 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 18:49:07,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:49:07,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 667 of 1686 [2023-01-27 18:49:07,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:49:09,696 INFO L130 PetriNetUnfolder]: 26/66 cut-off events. [2023-01-27 18:49:09,696 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2023-01-27 18:49:09,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 66 events. 26/66 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 174 event pairs, 6 based on Foata normal form. 3/59 useless extension candidates. Maximal degree in co-relation 176. Up to 35 conditions per place. [2023-01-27 18:49:09,697 INFO L137 encePairwiseOnDemand]: 1674/1686 looper letters, 25 selfloop transitions, 12 changer transitions 0/37 dead transitions. [2023-01-27 18:49:09,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 37 transitions, 183 flow [2023-01-27 18:49:09,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 18:49:09,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 18:49:09,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3371 transitions. [2023-01-27 18:49:09,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39988137603795965 [2023-01-27 18:49:09,737 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3371 transitions. [2023-01-27 18:49:09,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3371 transitions. [2023-01-27 18:49:09,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:49:09,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3371 transitions. [2023-01-27 18:49:09,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 674.2) internal successors, (3371), 5 states have internal predecessors, (3371), 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 18:49:09,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1686.0) internal successors, (10116), 6 states have internal predecessors, (10116), 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 18:49:09,796 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1686.0) internal successors, (10116), 6 states have internal predecessors, (10116), 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 18:49:09,796 INFO L175 Difference]: Start difference. First operand has 30 places, 34 transitions, 99 flow. Second operand 5 states and 3371 transitions. [2023-01-27 18:49:09,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 37 transitions, 183 flow [2023-01-27 18:49:09,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 179 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 18:49:09,798 INFO L231 Difference]: Finished difference. Result has 34 places, 35 transitions, 131 flow [2023-01-27 18:49:09,799 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1686, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=34, PETRI_TRANSITIONS=35} [2023-01-27 18:49:09,800 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2023-01-27 18:49:09,800 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 35 transitions, 131 flow [2023-01-27 18:49:09,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 668.1666666666666) internal successors, (4009), 6 states have internal predecessors, (4009), 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 18:49:09,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:49:09,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:49:09,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-27 18:49:10,029 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 18:49:10,029 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 2 more)] === [2023-01-27 18:49:10,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:49:10,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1904473139, now seen corresponding path program 1 times [2023-01-27 18:49:10,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:49:10,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819194195] [2023-01-27 18:49:10,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:49:10,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:49:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:49:11,082 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 18:49:11,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:49:11,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819194195] [2023-01-27 18:49:11,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819194195] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:49:11,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177557049] [2023-01-27 18:49:11,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:49:11,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:49:11,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:49:11,085 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 18:49:11,141 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 18:49:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:49:11,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 17 conjunts are in the unsatisfiable core [2023-01-27 18:49:11,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:49:11,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:11,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-01-27 18:49:12,003 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 18:49:12,004 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:49:12,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177557049] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:49:12,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:49:12,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2023-01-27 18:49:12,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739888826] [2023-01-27 18:49:12,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:49:12,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 18:49:12,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:49:12,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 18:49:12,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-27 18:49:12,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1686 [2023-01-27 18:49:12,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 35 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 724.8) internal successors, (3624), 5 states have internal predecessors, (3624), 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 18:49:12,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:49:12,012 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1686 [2023-01-27 18:49:12,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:49:13,056 INFO L130 PetriNetUnfolder]: 26/70 cut-off events. [2023-01-27 18:49:13,056 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2023-01-27 18:49:13,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 70 events. 26/70 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 186 event pairs, 8 based on Foata normal form. 4/66 useless extension candidates. Maximal degree in co-relation 215. Up to 50 conditions per place. [2023-01-27 18:49:13,066 INFO L137 encePairwiseOnDemand]: 1682/1686 looper letters, 28 selfloop transitions, 3 changer transitions 7/38 dead transitions. [2023-01-27 18:49:13,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 38 transitions, 217 flow [2023-01-27 18:49:13,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 18:49:13,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 18:49:13,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2928 transitions. [2023-01-27 18:49:13,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43416370106761565 [2023-01-27 18:49:13,114 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2928 transitions. [2023-01-27 18:49:13,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2928 transitions. [2023-01-27 18:49:13,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:49:13,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2928 transitions. [2023-01-27 18:49:13,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 732.0) internal successors, (2928), 4 states have internal predecessors, (2928), 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 18:49:13,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1686.0) internal successors, (8430), 5 states have internal predecessors, (8430), 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 18:49:13,125 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1686.0) internal successors, (8430), 5 states have internal predecessors, (8430), 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 18:49:13,125 INFO L175 Difference]: Start difference. First operand has 34 places, 35 transitions, 131 flow. Second operand 4 states and 2928 transitions. [2023-01-27 18:49:13,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 38 transitions, 217 flow [2023-01-27 18:49:13,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 38 transitions, 197 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 18:49:13,128 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 99 flow [2023-01-27 18:49:13,128 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1686, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2023-01-27 18:49:13,130 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2023-01-27 18:49:13,130 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 99 flow [2023-01-27 18:49:13,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 724.8) internal successors, (3624), 5 states have internal predecessors, (3624), 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 18:49:13,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:49:13,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:49:13,155 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 18:49:13,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:49:13,349 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 2 more)] === [2023-01-27 18:49:13,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:49:13,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1801636529, now seen corresponding path program 2 times [2023-01-27 18:49:13,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:49:13,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852496860] [2023-01-27 18:49:13,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:49:13,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:49:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:49:14,497 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 18:49:14,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:49:14,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852496860] [2023-01-27 18:49:14,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852496860] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:49:14,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033335999] [2023-01-27 18:49:14,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:49:14,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:49:14,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:49:14,501 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 18:49:14,503 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 18:49:15,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 18:49:15,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:49:15,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 298 conjunts are in the unsatisfiable core [2023-01-27 18:49:15,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:49:16,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:16,313 INFO L217 Elim1Store]: Index analysis took 128 ms [2023-01-27 18:49:28,129 WARN L222 SmtUtils]: Spent 11.74s on a formula simplification. DAG size of input: 1408 DAG size of output: 286 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-27 18:49:28,131 INFO L321 Elim1Store]: treesize reduction 9733, result has 6.0 percent of original size [2023-01-27 18:49:28,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 9 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 140 case distinctions, treesize of input 584 treesize of output 1112 [2023-01-27 18:49:32,066 INFO L321 Elim1Store]: treesize reduction 83, result has 27.2 percent of original size [2023-01-27 18:49:32,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 421 treesize of output 424 [2023-01-27 18:49:32,216 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-01-27 18:49:32,217 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 327 treesize of output 326 [2023-01-27 18:49:32,246 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 315 treesize of output 315 [2023-01-27 18:49:32,275 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 309 treesize of output 309 [2023-01-27 18:49:32,342 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 303 treesize of output 303 [2023-01-27 18:49:32,655 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-01-27 18:49:32,679 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 18:49:32,749 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 18:49:32,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:49:32,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 25 treesize of output 25 [2023-01-27 18:49:32,901 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 18:49:32,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:49:32,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033335999] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:49:32,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:49:32,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 8 [2023-01-27 18:49:32,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111623119] [2023-01-27 18:49:32,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:49:32,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:49:32,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:49:32,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:49:32,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-01-27 18:49:32,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 664 out of 1686 [2023-01-27 18:49:32,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 99 flow. Second operand has 7 states, 7 states have (on average 665.2857142857143) internal successors, (4657), 7 states have internal predecessors, (4657), 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 18:49:32,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:49:32,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 664 of 1686 [2023-01-27 18:49:32,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:49:33,888 INFO L130 PetriNetUnfolder]: 12/34 cut-off events. [2023-01-27 18:49:33,892 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2023-01-27 18:49:33,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 34 events. 12/34 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 2 based on Foata normal form. 4/28 useless extension candidates. Maximal degree in co-relation 88. Up to 16 conditions per place. [2023-01-27 18:49:33,892 INFO L137 encePairwiseOnDemand]: 1676/1686 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2023-01-27 18:49:33,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 30 transitions, 151 flow [2023-01-27 18:49:33,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 18:49:33,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 18:49:33,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3350 transitions. [2023-01-27 18:49:33,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3973902728351127 [2023-01-27 18:49:33,927 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3350 transitions. [2023-01-27 18:49:33,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3350 transitions. [2023-01-27 18:49:33,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:49:33,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3350 transitions. [2023-01-27 18:49:33,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 670.0) internal successors, (3350), 5 states have internal predecessors, (3350), 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 18:49:33,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1686.0) internal successors, (10116), 6 states have internal predecessors, (10116), 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 18:49:33,949 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1686.0) internal successors, (10116), 6 states have internal predecessors, (10116), 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 18:49:33,949 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 99 flow. Second operand 5 states and 3350 transitions. [2023-01-27 18:49:33,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 30 transitions, 151 flow [2023-01-27 18:49:33,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 131 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-01-27 18:49:33,951 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2023-01-27 18:49:33,951 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1686, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2023-01-27 18:49:33,953 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2023-01-27 18:49:33,953 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2023-01-27 18:49:33,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 665.2857142857143) internal successors, (4657), 7 states have internal predecessors, (4657), 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 18:49:33,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-27 18:49:33,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-27 18:49:33,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-27 18:49:33,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-27 18:49:33,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-01-27 18:49:34,009 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 18:49:34,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:49:34,181 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-01-27 18:49:34,194 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 18:49:34,194 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 18:49:34,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 06:49:34 BasicIcfg [2023-01-27 18:49:34,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 18:49:34,196 INFO L158 Benchmark]: Toolchain (without parser) took 653716.43ms. Allocated memory was 625.0MB in the beginning and 1.3GB in the end (delta: 641.7MB). Free memory was 567.4MB in the beginning and 954.5MB in the end (delta: -387.1MB). Peak memory consumption was 256.6MB. Max. memory is 16.0GB. [2023-01-27 18:49:34,197 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 392.2MB. Free memory is still 340.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:49:34,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5494.38ms. Allocated memory was 625.0MB in the beginning and 878.7MB in the end (delta: 253.8MB). Free memory was 567.4MB in the beginning and 792.0MB in the end (delta: -224.6MB). Peak memory consumption was 116.8MB. Max. memory is 16.0GB. [2023-01-27 18:49:34,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 186.59ms. Allocated memory is still 878.7MB. Free memory was 792.0MB in the beginning and 780.5MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 18:49:34,197 INFO L158 Benchmark]: Boogie Preprocessor took 109.02ms. Allocated memory is still 878.7MB. Free memory was 780.5MB in the beginning and 774.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-01-27 18:49:34,197 INFO L158 Benchmark]: RCFGBuilder took 1753.89ms. Allocated memory is still 878.7MB. Free memory was 774.2MB in the beginning and 699.7MB in the end (delta: 74.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.0GB. [2023-01-27 18:49:34,198 INFO L158 Benchmark]: TraceAbstraction took 646168.02ms. Allocated memory was 878.7MB in the beginning and 1.3GB in the end (delta: 388.0MB). Free memory was 698.7MB in the beginning and 954.5MB in the end (delta: -255.8MB). Peak memory consumption was 131.4MB. Max. memory is 16.0GB. [2023-01-27 18:49:34,199 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 392.2MB. Free memory is still 340.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 5494.38ms. Allocated memory was 625.0MB in the beginning and 878.7MB in the end (delta: 253.8MB). Free memory was 567.4MB in the beginning and 792.0MB in the end (delta: -224.6MB). Peak memory consumption was 116.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 186.59ms. Allocated memory is still 878.7MB. Free memory was 792.0MB in the beginning and 780.5MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Preprocessor took 109.02ms. Allocated memory is still 878.7MB. Free memory was 780.5MB in the beginning and 774.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * RCFGBuilder took 1753.89ms. Allocated memory is still 878.7MB. Free memory was 774.2MB in the beginning and 699.7MB in the end (delta: 74.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.0GB. * TraceAbstraction took 646168.02ms. Allocated memory was 878.7MB in the beginning and 1.3GB in the end (delta: 388.0MB). Free memory was 698.7MB in the beginning and 954.5MB in the end (delta: -255.8MB). Peak memory consumption was 131.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 586.6s, 751 PlacesBefore, 31 PlacesAfterwards, 791 TransitionsBefore, 42 TransitionsAfterwards, 13172 CoEnabledTransitionPairs, 10 FixpointIterations, 561 TrivialSequentialCompositions, 192 ConcurrentSequentialCompositions, 80 TrivialYvCompositions, 23 ConcurrentYvCompositions, 29 ChoiceCompositions, 885 TotalNumberOfCompositions, 11159 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10150, independent: 10076, independent conditional: 0, independent unconditional: 10076, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6997, independent: 6969, independent conditional: 0, independent unconditional: 6969, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10150, independent: 3107, independent conditional: 0, independent unconditional: 3107, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 6997, unknown conditional: 0, unknown unconditional: 6997] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 940 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 645.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 586.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 452 IncrementalHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 0 mSDtfsCounter, 452 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=4, InterpolantAutomatonStates: 22, 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: 0.4s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 44.4s InterpolantComputationTime, 70 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 60 ConstructedInterpolants, 2 QuantifiedInterpolants, 516 SizeOfPredicates, 127 NumberOfNonLiveVariables, 4423 ConjunctsInSsa, 762 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 4/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-27 18:49:34,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...