/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_current_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:45:50,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:45:50,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:45:50,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:45:50,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:45:50,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:45:50,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:45:50,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:45:50,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:45:50,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:45:50,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:45:50,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:45:50,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:45:50,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:45:50,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:45:50,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:45:50,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:45:50,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:45:50,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:45:50,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:45:50,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:45:50,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:45:50,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:45:50,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:45:50,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 18:45:50,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 18:45:50,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 18:45:50,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 18:45:50,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 18:45:50,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 18:45:50,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 18:45:50,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 18:45:50,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 18:45:50,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 18:45:50,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 18:45:50,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 18:45:50,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 18:45:50,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 18:45:50,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:45:50,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:45:50,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:45:50,172 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 18:45:50,208 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:45:50,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:45:50,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:45:50,210 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:45:50,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:45:50,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:45:50,211 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:45:50,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:45:50,211 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:45:50,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:45:50,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:45:50,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:45:50,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:45:50,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:45:50,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:45:50,212 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:45:50,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:45:50,213 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:45:50,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:45:50,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:45:50,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:45:50,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:45:50,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:45:50,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:45:50,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:45:50,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:45:50,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:45:50,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:45:50,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:45:50,214 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:45:50,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:45:50,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:45:50,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:45:50,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:45:50,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:45:50,461 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:45:50,462 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:45:50,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2023-01-27 18:45:51,565 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:45:51,996 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:45:51,996 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2023-01-27 18:45:52,047 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/624512379/2b90b05f7b2b413182680ae1a489b535/FLAG19f6be01b [2023-01-27 18:45:52,058 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/624512379/2b90b05f7b2b413182680ae1a489b535 [2023-01-27 18:45:52,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:45:52,061 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:45:52,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:45:52,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:45:52,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:45:52,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:45:52" (1/1) ... [2023-01-27 18:45:52,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ddba82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:45:52, skipping insertion in model container [2023-01-27 18:45:52,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:45:52" (1/1) ... [2023-01-27 18:45:52,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:45:52,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:45:52,470 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_current_pc8736x_gpio_set.i[5469,5482] [2023-01-27 18:45:54,830 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:45:55,246 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:45:55,247 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:45:55,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:45:55,312 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:45:55,325 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_current_pc8736x_gpio_set.i[5469,5482] [2023-01-27 18:45:55,458 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-01-27 18:45:55,585 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:45:55,586 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-01-27 18:45:55,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:45:56,042 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:45:56,042 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:45:56,043 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:45:56,043 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:45:56,043 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:45:56,043 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:45:56,043 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:45:56,049 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:45:56,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:45:56 WrapperNode [2023-01-27 18:45:56,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:45:56,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:45:56,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:45:56,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:45:56,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:45:56" (1/1) ... [2023-01-27 18:45:56,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:45:56" (1/1) ... [2023-01-27 18:45:56,209 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 51, statements flattened = 693 [2023-01-27 18:45:56,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:45:56,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:45:56,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:45:56,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:45:56,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:45:56" (1/1) ... [2023-01-27 18:45:56,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:45:56" (1/1) ... [2023-01-27 18:45:56,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:45:56" (1/1) ... [2023-01-27 18:45:56,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:45:56" (1/1) ... [2023-01-27 18:45:56,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:45:56" (1/1) ... [2023-01-27 18:45:56,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:45:56" (1/1) ... [2023-01-27 18:45:56,255 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:45:56" (1/1) ... [2023-01-27 18:45:56,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:45:56" (1/1) ... [2023-01-27 18:45:56,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:45:56,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:45:56,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:45:56,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:45:56,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:45:56" (1/1) ... [2023-01-27 18:45:56,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:45:56,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:45:56,316 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 18:45:56,335 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 18:45:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 18:45:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 18:45:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:45:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-27 18:45:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-01-27 18:45:56,356 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-01-27 18:45:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:45:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:45:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-01-27 18:45:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:45:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-27 18:45:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:45:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:45:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-01-27 18:45:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-27 18:45:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2023-01-27 18:45:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:45:56,359 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 18:45:56,788 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:45:56,790 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:45:57,354 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:45:57,364 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:45:57,364 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2023-01-27 18:45:57,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:45:57 BoogieIcfgContainer [2023-01-27 18:45:57,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:45:57,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:45:57,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:45:57,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:45:57,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:45:52" (1/3) ... [2023-01-27 18:45:57,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18067696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:45:57, skipping insertion in model container [2023-01-27 18:45:57,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:45:56" (2/3) ... [2023-01-27 18:45:57,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18067696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:45:57, skipping insertion in model container [2023-01-27 18:45:57,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:45:57" (3/3) ... [2023-01-27 18:45:57,372 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2023-01-27 18:45:57,386 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:45:57,386 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-01-27 18:45:57,386 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:45:57,484 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 18:45:57,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 709 places, 754 transitions, 1524 flow [2023-01-27 18:45:57,823 INFO L130 PetriNetUnfolder]: 52/752 cut-off events. [2023-01-27 18:45:57,823 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 18:45:57,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 752 events. 52/752 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 988 event pairs, 0 based on Foata normal form. 0/697 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-27 18:45:57,832 INFO L82 GeneralOperation]: Start removeDead. Operand has 709 places, 754 transitions, 1524 flow [2023-01-27 18:45:57,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 699 places, 744 transitions, 1497 flow [2023-01-27 18:45:57,845 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:45:57,859 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 699 places, 744 transitions, 1497 flow [2023-01-27 18:45:57,865 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 699 places, 744 transitions, 1497 flow [2023-01-27 18:45:57,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 699 places, 744 transitions, 1497 flow [2023-01-27 18:45:58,005 INFO L130 PetriNetUnfolder]: 52/744 cut-off events. [2023-01-27 18:45:58,005 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 18:45:58,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 744 events. 52/744 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 940 event pairs, 0 based on Foata normal form. 0/689 useless extension candidates. Maximal degree in co-relation 705. Up to 9 conditions per place. [2023-01-27 18:45:58,016 INFO L119 LiptonReduction]: Number of co-enabled transitions 9868 [2023-01-27 18:46:46,047 WARN L222 SmtUtils]: Spent 7.00s on a formula simplification that was a NOOP. DAG size: 227 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:47:15,797 WARN L222 SmtUtils]: Spent 7.40s on a formula simplification that was a NOOP. DAG size: 299 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:47:22,543 WARN L222 SmtUtils]: Spent 6.74s on a formula simplification that was a NOOP. DAG size: 285 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:47:38,353 WARN L222 SmtUtils]: Spent 15.81s on a formula simplification. DAG size of input: 305 DAG size of output: 303 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:47:44,658 WARN L222 SmtUtils]: Spent 6.30s on a formula simplification that was a NOOP. DAG size: 288 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:49:02,156 WARN L222 SmtUtils]: Spent 1.27m on a formula simplification. DAG size of input: 655 DAG size of output: 653 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:49:34,259 WARN L222 SmtUtils]: Spent 32.08s 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 18:52:04,528 WARN L222 SmtUtils]: Spent 2.50m on a formula simplification. DAG size of input: 658 DAG size of output: 656 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:53:07,155 WARN L222 SmtUtils]: Spent 1.04m 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 18:53:30,462 WARN L222 SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 298 DAG size of output: 287 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-01-27 18:53:32,344 INFO L134 LiptonReduction]: Checked pairs total: 9086 [2023-01-27 18:53:32,345 INFO L136 LiptonReduction]: Total number of compositions: 836 [2023-01-27 18:53:32,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:53:32,360 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;@488ddd85, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:53:32,360 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-01-27 18:53:32,369 INFO L130 PetriNetUnfolder]: 8/15 cut-off events. [2023-01-27 18:53:32,369 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:53:32,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:53:32,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-27 18:53:32,370 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 4 more)] === [2023-01-27 18:53:32,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:53:32,374 INFO L85 PathProgramCache]: Analyzing trace with hash 2741278, now seen corresponding path program 1 times [2023-01-27 18:53:32,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:53:32,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10351456] [2023-01-27 18:53:32,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:53:32,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:53:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:53:32,833 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 18:53:32,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:53:32,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10351456] [2023-01-27 18:53:32,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10351456] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:53:32,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:53:32,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 18:53:32,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188356729] [2023-01-27 18:53:32,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:53:32,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-27 18:53:32,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:53:32,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-27 18:53:32,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-27 18:53:32,869 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 718 out of 1590 [2023-01-27 18:53:32,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 52 transitions, 113 flow. Second operand has 2 states, 2 states have (on average 719.5) internal successors, (1439), 2 states have internal predecessors, (1439), 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 18:53:32,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:53:32,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 718 of 1590 [2023-01-27 18:53:32,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:53:33,418 INFO L130 PetriNetUnfolder]: 115/225 cut-off events. [2023-01-27 18:53:33,419 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-01-27 18:53:33,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 225 events. 115/225 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 668 event pairs, 105 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 394. Up to 226 conditions per place. [2023-01-27 18:53:33,421 INFO L137 encePairwiseOnDemand]: 1577/1590 looper letters, 39 selfloop transitions, 0 changer transitions 0/39 dead transitions. [2023-01-27 18:53:33,421 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 165 flow [2023-01-27 18:53:33,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-27 18:53:33,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-27 18:53:33,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1488 transitions. [2023-01-27 18:53:33,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4679245283018868 [2023-01-27 18:53:33,444 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1488 transitions. [2023-01-27 18:53:33,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1488 transitions. [2023-01-27 18:53:33,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:53:33,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1488 transitions. [2023-01-27 18:53:33,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 744.0) internal successors, (1488), 2 states have internal predecessors, (1488), 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 18:53:33,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1590.0) internal successors, (4770), 3 states have internal predecessors, (4770), 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 18:53:33,471 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1590.0) internal successors, (4770), 3 states have internal predecessors, (4770), 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 18:53:33,472 INFO L175 Difference]: Start difference. First operand has 37 places, 52 transitions, 113 flow. Second operand 2 states and 1488 transitions. [2023-01-27 18:53:33,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 165 flow [2023-01-27 18:53:33,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 160 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 18:53:33,483 INFO L231 Difference]: Finished difference. Result has 34 places, 39 transitions, 82 flow [2023-01-27 18:53:33,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=34, PETRI_TRANSITIONS=39} [2023-01-27 18:53:33,488 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -3 predicate places. [2023-01-27 18:53:33,488 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 39 transitions, 82 flow [2023-01-27 18:53:33,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 719.5) internal successors, (1439), 2 states have internal predecessors, (1439), 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 18:53:33,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:53:33,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:53:33,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:53:33,490 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 4 more)] === [2023-01-27 18:53:33,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:53:33,494 INFO L85 PathProgramCache]: Analyzing trace with hash -950288402, now seen corresponding path program 1 times [2023-01-27 18:53:33,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:53:33,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682731828] [2023-01-27 18:53:33,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:53:33,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:53:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:53:34,224 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 18:53:34,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:53:34,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682731828] [2023-01-27 18:53:34,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682731828] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:53:34,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:53:34,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:53:34,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29805561] [2023-01-27 18:53:34,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:53:34,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:53:34,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:53:34,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:53:34,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:53:34,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 1590 [2023-01-27 18:53:34,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 39 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 702.3333333333334) internal successors, (2107), 3 states have internal predecessors, (2107), 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 18:53:34,236 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:53:34,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 1590 [2023-01-27 18:53:34,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:53:34,508 INFO L130 PetriNetUnfolder]: 115/226 cut-off events. [2023-01-27 18:53:34,509 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:53:34,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 226 events. 115/226 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 668 event pairs, 105 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 471. Up to 226 conditions per place. [2023-01-27 18:53:34,510 INFO L137 encePairwiseOnDemand]: 1586/1590 looper letters, 38 selfloop transitions, 2 changer transitions 0/40 dead transitions. [2023-01-27 18:53:34,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 164 flow [2023-01-27 18:53:34,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:53:34,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:53:34,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2142 transitions. [2023-01-27 18:53:34,516 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4490566037735849 [2023-01-27 18:53:34,516 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2142 transitions. [2023-01-27 18:53:34,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2142 transitions. [2023-01-27 18:53:34,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:53:34,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2142 transitions. [2023-01-27 18:53:34,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 714.0) internal successors, (2142), 3 states have internal predecessors, (2142), 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 18:53:34,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1590.0) internal successors, (6360), 4 states have internal predecessors, (6360), 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 18:53:34,532 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1590.0) internal successors, (6360), 4 states have internal predecessors, (6360), 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 18:53:34,532 INFO L175 Difference]: Start difference. First operand has 34 places, 39 transitions, 82 flow. Second operand 3 states and 2142 transitions. [2023-01-27 18:53:34,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 40 transitions, 164 flow [2023-01-27 18:53:34,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-27 18:53:34,534 INFO L231 Difference]: Finished difference. Result has 37 places, 40 transitions, 96 flow [2023-01-27 18:53:34,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=37, PETRI_TRANSITIONS=40} [2023-01-27 18:53:34,535 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2023-01-27 18:53:34,535 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 40 transitions, 96 flow [2023-01-27 18:53:34,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 702.3333333333334) internal successors, (2107), 3 states have internal predecessors, (2107), 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 18:53:34,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:53:34,537 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:53:34,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:53:34,538 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 4 more)] === [2023-01-27 18:53:34,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:53:34,539 INFO L85 PathProgramCache]: Analyzing trace with hash 222415740, now seen corresponding path program 1 times [2023-01-27 18:53:34,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:53:34,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046496545] [2023-01-27 18:53:34,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:53:34,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:53:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:53:35,172 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 18:53:35,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:53:35,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046496545] [2023-01-27 18:53:35,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046496545] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:53:35,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905488345] [2023-01-27 18:53:35,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:53:35,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:53:35,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:53:35,175 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 18:53:35,179 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 18:53:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:53:35,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-27 18:53:35,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:53:35,659 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 18:53:35,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:53:35,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905488345] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:53:35,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:53:35,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-01-27 18:53:35,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77295364] [2023-01-27 18:53:35,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:53:35,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:53:35,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:53:35,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:53:35,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:53:35,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 667 out of 1590 [2023-01-27 18:53:35,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 40 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 669.6666666666666) internal successors, (2009), 3 states have internal predecessors, (2009), 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 18:53:35,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:53:35,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 667 of 1590 [2023-01-27 18:53:35,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:53:36,078 INFO L130 PetriNetUnfolder]: 107/222 cut-off events. [2023-01-27 18:53:36,078 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 18:53:36,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 222 events. 107/222 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 720 event pairs, 39 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 469. Up to 133 conditions per place. [2023-01-27 18:53:36,079 INFO L137 encePairwiseOnDemand]: 1587/1590 looper letters, 47 selfloop transitions, 2 changer transitions 3/52 dead transitions. [2023-01-27 18:53:36,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 52 transitions, 225 flow [2023-01-27 18:53:36,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:53:36,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:53:36,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2053 transitions. [2023-01-27 18:53:36,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43039832285115304 [2023-01-27 18:53:36,084 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2053 transitions. [2023-01-27 18:53:36,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2053 transitions. [2023-01-27 18:53:36,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:53:36,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2053 transitions. [2023-01-27 18:53:36,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 684.3333333333334) internal successors, (2053), 3 states have internal predecessors, (2053), 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 18:53:36,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1590.0) internal successors, (6360), 4 states have internal predecessors, (6360), 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 18:53:36,100 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1590.0) internal successors, (6360), 4 states have internal predecessors, (6360), 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 18:53:36,100 INFO L175 Difference]: Start difference. First operand has 37 places, 40 transitions, 96 flow. Second operand 3 states and 2053 transitions. [2023-01-27 18:53:36,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 52 transitions, 225 flow [2023-01-27 18:53:36,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 52 transitions, 221 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-27 18:53:36,102 INFO L231 Difference]: Finished difference. Result has 39 places, 41 transitions, 104 flow [2023-01-27 18:53:36,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=39, PETRI_TRANSITIONS=41} [2023-01-27 18:53:36,102 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 2 predicate places. [2023-01-27 18:53:36,103 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 41 transitions, 104 flow [2023-01-27 18:53:36,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 669.6666666666666) internal successors, (2009), 3 states have internal predecessors, (2009), 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 18:53:36,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:53:36,104 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:53:36,115 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 18:53:36,313 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 18:53:36,314 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 18:53:36,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:53:36,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1331810217, now seen corresponding path program 1 times [2023-01-27 18:53:36,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:53:36,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137150421] [2023-01-27 18:53:36,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:53:36,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:53:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:53:36,972 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 18:53:36,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:53:36,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137150421] [2023-01-27 18:53:36,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137150421] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:53:36,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887330332] [2023-01-27 18:53:36,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:53:36,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:53:36,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:53:36,974 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 18:53:36,997 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 18:53:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:53:38,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-27 18:53:38,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:53:38,309 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 18:53:38,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:53:38,597 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 18:53:38,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887330332] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:53:38,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:53:38,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-01-27 18:53:38,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612825501] [2023-01-27 18:53:38,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:53:38,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-27 18:53:38,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:53:38,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-27 18:53:38,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:53:38,603 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 1590 [2023-01-27 18:53:38,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 41 transitions, 104 flow. Second operand has 8 states, 8 states have (on average 702.125) internal successors, (5617), 8 states have internal predecessors, (5617), 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 18:53:38,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:53:38,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 1590 [2023-01-27 18:53:38,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:53:39,038 INFO L130 PetriNetUnfolder]: 107/227 cut-off events. [2023-01-27 18:53:39,038 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2023-01-27 18:53:39,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 227 events. 107/227 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 703 event pairs, 97 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 520. Up to 222 conditions per place. [2023-01-27 18:53:39,039 INFO L137 encePairwiseOnDemand]: 1582/1590 looper letters, 38 selfloop transitions, 8 changer transitions 0/46 dead transitions. [2023-01-27 18:53:39,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 46 transitions, 212 flow [2023-01-27 18:53:39,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 18:53:39,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 18:53:39,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4255 transitions. [2023-01-27 18:53:39,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4460167714884696 [2023-01-27 18:53:39,050 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4255 transitions. [2023-01-27 18:53:39,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4255 transitions. [2023-01-27 18:53:39,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:53:39,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4255 transitions. [2023-01-27 18:53:39,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 709.1666666666666) internal successors, (4255), 6 states have internal predecessors, (4255), 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 18:53:39,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1590.0) internal successors, (11130), 7 states have internal predecessors, (11130), 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 18:53:39,075 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1590.0) internal successors, (11130), 7 states have internal predecessors, (11130), 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 18:53:39,075 INFO L175 Difference]: Start difference. First operand has 39 places, 41 transitions, 104 flow. Second operand 6 states and 4255 transitions. [2023-01-27 18:53:39,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 46 transitions, 212 flow [2023-01-27 18:53:39,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 46 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 18:53:39,079 INFO L231 Difference]: Finished difference. Result has 46 places, 46 transitions, 168 flow [2023-01-27 18:53:39,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=168, PETRI_PLACES=46, PETRI_TRANSITIONS=46} [2023-01-27 18:53:39,080 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 9 predicate places. [2023-01-27 18:53:39,081 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 46 transitions, 168 flow [2023-01-27 18:53:39,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 702.125) internal successors, (5617), 8 states have internal predecessors, (5617), 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 18:53:39,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:53:39,083 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:53:39,096 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 18:53:39,294 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 18:53:39,294 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 18:53:39,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:53:39,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1702325029, now seen corresponding path program 2 times [2023-01-27 18:53:39,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:53:39,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997818197] [2023-01-27 18:53:39,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:53:39,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:53:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:53:40,004 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:53:40,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:53:40,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997818197] [2023-01-27 18:53:40,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997818197] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:53:40,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742717925] [2023-01-27 18:53:40,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:53:40,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:53:40,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:53:40,007 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 18:53:40,010 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 18:53:41,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 18:53:41,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:53:41,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 24 conjunts are in the unsatisfiable core [2023-01-27 18:53:41,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:53:41,331 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-27 18:53:41,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2023-01-27 18:53:41,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-27 18:53:41,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-01-27 18:53:41,527 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-01-27 18:53:41,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:53:41,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742717925] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:53:41,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:53:41,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-01-27 18:53:41,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653262305] [2023-01-27 18:53:41,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:53:41,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 18:53:41,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:53:41,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 18:53:41,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-01-27 18:53:41,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 664 out of 1590 [2023-01-27 18:53:41,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 46 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 666.75) internal successors, (2667), 4 states have internal predecessors, (2667), 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 18:53:41,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:53:41,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 664 of 1590 [2023-01-27 18:53:41,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:53:42,163 INFO L130 PetriNetUnfolder]: 112/245 cut-off events. [2023-01-27 18:53:42,163 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-27 18:53:42,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 245 events. 112/245 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 809 event pairs, 66 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 585. Up to 107 conditions per place. [2023-01-27 18:53:42,164 INFO L137 encePairwiseOnDemand]: 1586/1590 looper letters, 48 selfloop transitions, 4 changer transitions 7/59 dead transitions. [2023-01-27 18:53:42,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 59 transitions, 321 flow [2023-01-27 18:53:42,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 18:53:42,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 18:53:42,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2709 transitions. [2023-01-27 18:53:42,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4259433962264151 [2023-01-27 18:53:42,171 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2709 transitions. [2023-01-27 18:53:42,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2709 transitions. [2023-01-27 18:53:42,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:53:42,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2709 transitions. [2023-01-27 18:53:42,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 677.25) internal successors, (2709), 4 states have internal predecessors, (2709), 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 18:53:42,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1590.0) internal successors, (7950), 5 states have internal predecessors, (7950), 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 18:53:42,185 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1590.0) internal successors, (7950), 5 states have internal predecessors, (7950), 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 18:53:42,185 INFO L175 Difference]: Start difference. First operand has 46 places, 46 transitions, 168 flow. Second operand 4 states and 2709 transitions. [2023-01-27 18:53:42,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 59 transitions, 321 flow [2023-01-27 18:53:42,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 59 transitions, 311 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-01-27 18:53:42,188 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 175 flow [2023-01-27 18:53:42,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2023-01-27 18:53:42,188 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 12 predicate places. [2023-01-27 18:53:42,188 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 175 flow [2023-01-27 18:53:42,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 666.75) internal successors, (2667), 4 states have internal predecessors, (2667), 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 18:53:42,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:53:42,189 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:53:42,203 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 18:53:42,400 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 18:53:42,401 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 18:53:42,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:53:42,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1232467913, now seen corresponding path program 1 times [2023-01-27 18:53:42,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:53:42,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368058043] [2023-01-27 18:53:42,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:53:42,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:53:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:53:43,264 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:53:43,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:53:43,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368058043] [2023-01-27 18:53:43,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368058043] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:53:43,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246109725] [2023-01-27 18:53:43,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:53:43,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:53:43,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:53:43,266 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 18:53:43,306 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 18:53:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:53:44,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 15 conjunts are in the unsatisfiable core [2023-01-27 18:53:44,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:53:44,436 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:53:44,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:53:44,718 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:53:44,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246109725] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:53:44,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:53:44,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-01-27 18:53:44,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328715019] [2023-01-27 18:53:44,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:53:44,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-27 18:53:44,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:53:44,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-27 18:53:44,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2023-01-27 18:53:44,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 696 out of 1590 [2023-01-27 18:53:44,734 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 175 flow. Second operand has 17 states, 17 states have (on average 697.5882352941177) internal successors, (11859), 17 states have internal predecessors, (11859), 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 18:53:44,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:53:44,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 696 of 1590 [2023-01-27 18:53:44,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:53:46,707 INFO L130 PetriNetUnfolder]: 112/254 cut-off events. [2023-01-27 18:53:46,707 INFO L131 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2023-01-27 18:53:46,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 657 conditions, 254 events. 112/254 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 856 event pairs, 102 based on Foata normal form. 9/256 useless extension candidates. Maximal degree in co-relation 646. Up to 240 conditions per place. [2023-01-27 18:53:46,708 INFO L137 encePairwiseOnDemand]: 1582/1590 looper letters, 39 selfloop transitions, 17 changer transitions 0/56 dead transitions. [2023-01-27 18:53:46,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 56 transitions, 335 flow [2023-01-27 18:53:46,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-27 18:53:46,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-27 18:53:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8424 transitions. [2023-01-27 18:53:46,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44150943396226416 [2023-01-27 18:53:46,731 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 8424 transitions. [2023-01-27 18:53:46,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 8424 transitions. [2023-01-27 18:53:46,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:53:46,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 8424 transitions. [2023-01-27 18:53:46,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 702.0) internal successors, (8424), 12 states have internal predecessors, (8424), 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 18:53:46,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 1590.0) internal successors, (20670), 13 states have internal predecessors, (20670), 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 18:53:46,783 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 1590.0) internal successors, (20670), 13 states have internal predecessors, (20670), 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 18:53:46,783 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 175 flow. Second operand 12 states and 8424 transitions. [2023-01-27 18:53:46,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 56 transitions, 335 flow [2023-01-27 18:53:46,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 56 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:53:46,788 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 314 flow [2023-01-27 18:53:46,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=314, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2023-01-27 18:53:46,791 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 27 predicate places. [2023-01-27 18:53:46,791 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 314 flow [2023-01-27 18:53:46,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 697.5882352941177) internal successors, (11859), 17 states have internal predecessors, (11859), 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 18:53:46,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:53:46,794 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:53:46,805 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 18:53:47,005 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 18:53:47,006 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 18:53:47,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:53:47,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1763918583, now seen corresponding path program 2 times [2023-01-27 18:53:47,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:53:47,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178126465] [2023-01-27 18:53:47,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:53:47,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:53:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:53:48,072 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:53:48,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:53:48,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178126465] [2023-01-27 18:53:48,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178126465] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:53:48,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554680351] [2023-01-27 18:53:48,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:53:48,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:53:48,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:53:48,074 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:53:48,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-27 18:53:49,477 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-01-27 18:53:49,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:53:49,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 1104 conjuncts, 194 conjunts are in the unsatisfiable core [2023-01-27 18:53:49,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:53:49,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:49,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 18:53:56,097 WARN L222 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 1131 DAG size of output: 308 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-01-27 18:53:56,102 INFO L321 Elim1Store]: treesize reduction 8561, result has 7.7 percent of original size [2023-01-27 18:53:56,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 46 case distinctions, treesize of input 300 treesize of output 941 [2023-01-27 18:54:00,663 INFO L321 Elim1Store]: treesize reduction 83, result has 27.2 percent of original size [2023-01-27 18:54:00,663 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 393 treesize of output 400 [2023-01-27 18:54:00,766 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-01-27 18:54:00,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 346 [2023-01-27 18:54:00,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 335 [2023-01-27 18:54:00,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 329 [2023-01-27 18:54:00,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 323 [2023-01-27 18:54:01,084 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 48 treesize of output 44 [2023-01-27 18:54:01,104 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-01-27 18:54:01,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-01-27 18:54:01,442 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 18:54:01,492 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-01-27 18:54:01,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 18:54:01,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554680351] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:54:01,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 18:54:01,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 17 [2023-01-27 18:54:01,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620916795] [2023-01-27 18:54:01,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:54:01,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 18:54:01,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:54:01,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 18:54:01,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2023-01-27 18:54:01,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 605 out of 1590 [2023-01-27 18:54:01,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 314 flow. Second operand has 7 states, 7 states have (on average 606.7142857142857) internal successors, (4247), 7 states have internal predecessors, (4247), 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 18:54:01,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:54:01,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 605 of 1590 [2023-01-27 18:54:01,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:54:02,431 INFO L130 PetriNetUnfolder]: 104/239 cut-off events. [2023-01-27 18:54:02,432 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2023-01-27 18:54:02,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 239 events. 104/239 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 773 event pairs, 65 based on Foata normal form. 7/239 useless extension candidates. Maximal degree in co-relation 643. Up to 107 conditions per place. [2023-01-27 18:54:02,434 INFO L137 encePairwiseOnDemand]: 1579/1590 looper letters, 47 selfloop transitions, 10 changer transitions 7/64 dead transitions. [2023-01-27 18:54:02,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 64 transitions, 466 flow [2023-01-27 18:54:02,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 18:54:02,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 18:54:02,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3679 transitions. [2023-01-27 18:54:02,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38563941299790355 [2023-01-27 18:54:02,442 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3679 transitions. [2023-01-27 18:54:02,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3679 transitions. [2023-01-27 18:54:02,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:54:02,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3679 transitions. [2023-01-27 18:54:02,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 613.1666666666666) internal successors, (3679), 6 states have internal predecessors, (3679), 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 18:54:02,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1590.0) internal successors, (11130), 7 states have internal predecessors, (11130), 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 18:54:02,462 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1590.0) internal successors, (11130), 7 states have internal predecessors, (11130), 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 18:54:02,462 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 314 flow. Second operand 6 states and 3679 transitions. [2023-01-27 18:54:02,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 64 transitions, 466 flow [2023-01-27 18:54:02,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 64 transitions, 426 flow, removed 18 selfloop flow, removed 2 redundant places. [2023-01-27 18:54:02,467 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 278 flow [2023-01-27 18:54:02,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=278, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2023-01-27 18:54:02,469 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 29 predicate places. [2023-01-27 18:54:02,469 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 278 flow [2023-01-27 18:54:02,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 606.7142857142857) internal successors, (4247), 7 states have internal predecessors, (4247), 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 18:54:02,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:54:02,470 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:54:02,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-27 18:54:02,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:54:02,681 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 18:54:02,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:54:02,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2055195053, now seen corresponding path program 1 times [2023-01-27 18:54:02,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:54:02,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788699362] [2023-01-27 18:54:02,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:54:02,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:54:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:54:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:54:03,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:54:03,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788699362] [2023-01-27 18:54:03,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788699362] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:54:03,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136611579] [2023-01-27 18:54:03,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:54:03,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:54:03,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:54:03,917 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:54:03,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-27 18:54:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:54:05,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 1300 conjuncts, 27 conjunts are in the unsatisfiable core [2023-01-27 18:54:05,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:54:05,524 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:54:05,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:54:05,957 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:54:05,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136611579] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:54:05,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:54:05,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-01-27 18:54:05,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941839414] [2023-01-27 18:54:05,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:54:05,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-01-27 18:54:05,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:54:05,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-01-27 18:54:05,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2023-01-27 18:54:05,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 1590 [2023-01-27 18:54:05,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 278 flow. Second operand has 25 states, 25 states have (on average 701.48) internal successors, (17537), 25 states have internal predecessors, (17537), 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 18:54:05,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:54:05,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 1590 [2023-01-27 18:54:05,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:54:24,653 INFO L130 PetriNetUnfolder]: 49/142 cut-off events. [2023-01-27 18:54:24,654 INFO L131 PetriNetUnfolder]: For 1146/1146 co-relation queries the response was YES. [2023-01-27 18:54:24,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 142 events. 49/142 cut-off events. For 1146/1146 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 299 event pairs, 39 based on Foata normal form. 30/167 useless extension candidates. Maximal degree in co-relation 441. Up to 110 conditions per place. [2023-01-27 18:54:24,655 INFO L137 encePairwiseOnDemand]: 1582/1590 looper letters, 35 selfloop transitions, 35 changer transitions 0/70 dead transitions. [2023-01-27 18:54:24,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 70 transitions, 514 flow [2023-01-27 18:54:24,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-27 18:54:24,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-27 18:54:24,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 16906 transitions. [2023-01-27 18:54:24,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4430293501048218 [2023-01-27 18:54:24,682 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 16906 transitions. [2023-01-27 18:54:24,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 16906 transitions. [2023-01-27 18:54:24,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:54:24,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 16906 transitions. [2023-01-27 18:54:24,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 704.4166666666666) internal successors, (16906), 24 states have internal predecessors, (16906), 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 18:54:24,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 1590.0) internal successors, (39750), 25 states have internal predecessors, (39750), 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 18:54:24,753 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 1590.0) internal successors, (39750), 25 states have internal predecessors, (39750), 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 18:54:24,753 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 278 flow. Second operand 24 states and 16906 transitions. [2023-01-27 18:54:24,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 70 transitions, 514 flow [2023-01-27 18:54:24,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 70 transitions, 492 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-01-27 18:54:24,758 INFO L231 Difference]: Finished difference. Result has 95 places, 70 transitions, 544 flow [2023-01-27 18:54:24,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1590, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=544, PETRI_PLACES=95, PETRI_TRANSITIONS=70} [2023-01-27 18:54:24,761 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 58 predicate places. [2023-01-27 18:54:24,761 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 70 transitions, 544 flow [2023-01-27 18:54:24,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 701.48) internal successors, (17537), 25 states have internal predecessors, (17537), 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 18:54:24,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:54:24,766 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:54:24,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-27 18:54:24,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:54:24,981 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 18:54:24,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:54:24,981 INFO L85 PathProgramCache]: Analyzing trace with hash -101560109, now seen corresponding path program 2 times [2023-01-27 18:54:24,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:54:24,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643596323] [2023-01-27 18:54:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:54:24,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:54:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:54:26,850 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:54:26,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:54:26,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643596323] [2023-01-27 18:54:26,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643596323] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 18:54:26,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502879902] [2023-01-27 18:54:26,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 18:54:26,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 18:54:26,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:54:26,854 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 18:54:26,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-27 18:54:50,619 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-27 18:54:50,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 18:54:50,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 1504 conjuncts, 52 conjunts are in the unsatisfiable core [2023-01-27 18:54:50,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 18:54:51,224 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:54:51,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 18:54:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:54:52,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502879902] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 18:54:52,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 18:54:52,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 69 [2023-01-27 18:54:52,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571897681] [2023-01-27 18:54:52,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 18:54:52,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2023-01-27 18:54:52,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:54:52,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2023-01-27 18:54:52,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1258, Invalid=3572, Unknown=0, NotChecked=0, Total=4830 [2023-01-27 18:54:52,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 1590 [2023-01-27 18:54:52,947 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 70 transitions, 544 flow. Second operand has 70 states, 70 states have (on average 701.1714285714286) internal successors, (49082), 70 states have internal predecessors, (49082), 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 18:54:52,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:54:52,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 1590 [2023-01-27 18:54:52,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:54:59,844 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse7 (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296)) (.cse5 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296)) (.cse6 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296)) (.cse3 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296)) (.cse12 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296)) (.cse17 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296)) (.cse2 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296)) (.cse19 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296)) (.cse18 (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296)) (.cse8 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 20) 4294967296)) (.cse9 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 21) 4294967296)) (.cse16 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296)) (.cse11 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296)) (.cse21 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296)) (.cse22 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296)) (.cse4 (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296)) (.cse10 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296)) (.cse20 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296)) (.cse13 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296)) (.cse14 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296)) (.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (or (<= .cse0 .cse1) (< .cse2 .cse0)) (or (< .cse3 .cse0) (<= .cse0 .cse4)) (or (< .cse5 .cse0) (<= .cse0 .cse6)) (< .cse7 .cse0) (or (<= .cse0 .cse8) (< .cse9 .cse0)) (or (< .cse10 .cse0) (<= .cse0 .cse11)) (or (<= .cse0 .cse12) (< .cse13 .cse0)) (or (<= .cse0 .cse14) (< .cse15 .cse0)) (or (< .cse16 .cse0) (<= .cse0 .cse7)) (or (<= .cse0 .cse5) (< .cse1 .cse0)) (or (<= .cse0 .cse15) (< .cse6 .cse0)) (or (<= .cse0 .cse3) (< .cse12 .cse0)) (or (<= .cse0 .cse17) (< .cse18 .cse0)) (or (<= .cse0 .cse19) (< .cse17 .cse0)) (or (<= .cse0 .cse2) (< .cse19 .cse0)) (or (<= .cse0 .cse20) (< .cse21 .cse0)) (or (<= .cse0 .cse18) (< .cse8 .cse0)) (or (<= .cse0 .cse9) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 22) 4294967296) .cse0)) (or (<= .cse0 .cse16) (< .cse11 .cse0)) (or (< .cse22 .cse0) (<= .cse0 .cse21)) (or (<= .cse0 .cse22) (< .cse4 .cse0)) (or (<= .cse0 .cse10) (< .cse20 .cse0)) (or (<= .cse0 .cse13) (< .cse14 .cse0)))) is different from false [2023-01-27 18:58:55,412 WARN L222 SmtUtils]: Spent 3.29m on a formula simplification. DAG size of input: 133 DAG size of output: 91 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-27 18:58:57,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-01-27 18:59:00,428 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse7 (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296)) (.cse5 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296)) (.cse13 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296)) (.cse6 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296)) (.cse3 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296)) (.cse10 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296)) (.cse2 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296)) (.cse17 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296)) (.cse16 (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296)) (.cse14 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296)) (.cse9 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296)) (.cse19 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296)) (.cse20 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296)) (.cse4 (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296)) (.cse8 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296)) (.cse18 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296)) (.cse11 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296)) (.cse12 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296)) (.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (or (<= .cse0 .cse1) (< .cse2 .cse0)) (or (< .cse3 .cse0) (<= .cse0 .cse4)) (or (< .cse5 .cse0) (<= .cse0 .cse6)) (< .cse7 .cse0) (or (< .cse8 .cse0) (<= .cse0 .cse9)) (or (<= .cse0 .cse10) (< .cse11 .cse0)) (or (<= .cse0 .cse12) (< .cse13 .cse0)) (or (< .cse14 .cse0) (<= .cse0 .cse7)) (or (<= .cse0 .cse5) (< .cse1 .cse0)) (or (<= .cse0 .cse13) (< .cse6 .cse0)) (or (<= .cse0 .cse3) (< .cse10 .cse0)) (or (<= .cse0 .cse15) (< .cse16 .cse0)) (or (<= .cse0 .cse17) (< .cse15 .cse0)) (or (<= .cse0 .cse2) (< .cse17 .cse0)) (or (<= .cse0 .cse18) (< .cse19 .cse0)) (or (<= .cse0 .cse16) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 20) 4294967296) .cse0)) (or (<= .cse0 .cse14) (< .cse9 .cse0)) (or (< .cse20 .cse0) (<= .cse0 .cse19)) (or (<= .cse0 .cse20) (< .cse4 .cse0)) (or (<= .cse0 .cse8) (< .cse18 .cse0)) (or (<= .cse0 .cse11) (< .cse12 .cse0)))) is different from false [2023-01-27 18:59:02,578 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse5 (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296)) (.cse3 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296)) (.cse13 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296)) (.cse4 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296)) (.cse0 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296)) (.cse10 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296)) (.cse17 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296)) (.cse16 (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296)) (.cse6 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 20) 4294967296)) (.cse7 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 21) 4294967296)) (.cse14 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296)) (.cse9 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296)) (.cse19 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296)) (.cse20 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296)) (.cse2 (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296)) (.cse8 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296)) (.cse18 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296)) (.cse11 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296)) (.cse12 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296)) (.cse1 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (or (< .cse0 .cse1) (<= .cse1 .cse2)) (or (< .cse3 .cse1) (<= .cse1 .cse4)) (< .cse5 .cse1) (or (<= .cse1 .cse6) (< .cse7 .cse1)) (or (< .cse8 .cse1) (<= .cse1 .cse9)) (or (<= .cse1 .cse10) (< .cse11 .cse1)) (or (<= .cse1 .cse12) (< .cse13 .cse1)) (or (< .cse14 .cse1) (<= .cse1 .cse5)) (or (<= .cse1 .cse3) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse1)) (or (<= .cse1 .cse13) (< .cse4 .cse1)) (or (<= .cse1 .cse0) (< .cse10 .cse1)) (or (<= .cse1 .cse15) (< .cse16 .cse1)) (or (<= .cse1 .cse17) (< .cse15 .cse1)) (or (<= .cse1 (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296)) (< .cse17 .cse1)) (or (<= .cse1 .cse18) (< .cse19 .cse1)) (or (<= .cse1 .cse16) (< .cse6 .cse1)) (or (<= .cse1 .cse7) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 22) 4294967296) .cse1)) (or (<= .cse1 .cse14) (< .cse9 .cse1)) (or (< .cse20 .cse1) (<= .cse1 .cse19)) (or (<= .cse1 .cse20) (< .cse2 .cse1)) (or (<= .cse1 .cse8) (< .cse18 .cse1)) (or (<= .cse1 .cse11) (< .cse12 .cse1)))) is different from false Received shutdown request... [2023-01-27 18:59:46,122 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 18:59:46,122 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 18:59:47,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-01-27 18:59:47,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-27 18:59:47,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-27 18:59:47,285 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.pop(UndoableWrapperScript.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.restore(UndoableWrapperScript.java:87) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:236) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:376) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.NestedWordAutomataUtils.getSuccessorState(NestedWordAutomataUtils.java:483) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.DifferencePetriNet$DifferenceSuccessorTransitionProvider.getOrConstructTransition(DifferencePetriNet.java:279) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.DifferencePetriNet$DifferenceSuccessorTransitionProvider.getTransitions(DifferencePetriNet.java:261) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PossibleExtensions.addFullyInstantiatedCandidate(PossibleExtensions.java:168) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PossibleExtensions.evolveCandidate(PossibleExtensions.java:195) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PossibleExtensions.update(PossibleExtensions.java:135) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.computeUnfoldingHelper(PetriNetUnfolder.java:209) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.computeUnfolding(PetriNetUnfolder.java:168) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.(PetriNetUnfolder.java:129) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:76) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:64) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.DifferencePairwiseOnDemand.(DifferencePairwiseOnDemand.java:125) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.enhanceAnddeterminizeInterpolantAutomaton(CegarLoopForPetriNet.java:481) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.refineAbstraction(CegarLoopForPetriNet.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-01-27 18:59:47,288 INFO L158 Benchmark]: Toolchain (without parser) took 835227.03ms. Allocated memory was 348.1MB in the beginning and 1.0GB in the end (delta: 675.3MB). Free memory was 297.2MB in the beginning and 900.4MB in the end (delta: -603.2MB). Peak memory consumption was 660.0MB. Max. memory is 16.0GB. [2023-01-27 18:59:47,289 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory is still 213.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:59:47,289 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3987.40ms. Allocated memory was 348.1MB in the beginning and 490.7MB in the end (delta: 142.6MB). Free memory was 297.2MB in the beginning and 339.4MB in the end (delta: -42.2MB). Peak memory consumption was 112.2MB. Max. memory is 16.0GB. [2023-01-27 18:59:47,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 159.15ms. Allocated memory is still 490.7MB. Free memory was 339.4MB in the beginning and 428.1MB in the end (delta: -88.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.0GB. [2023-01-27 18:59:47,289 INFO L158 Benchmark]: Boogie Preprocessor took 69.73ms. Allocated memory is still 490.7MB. Free memory was 428.1MB in the beginning and 421.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2023-01-27 18:59:47,289 INFO L158 Benchmark]: RCFGBuilder took 1086.30ms. Allocated memory is still 490.7MB. Free memory was 421.8MB in the beginning and 355.8MB in the end (delta: 66.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.0GB. [2023-01-27 18:59:47,290 INFO L158 Benchmark]: TraceAbstraction took 829919.94ms. Allocated memory was 490.7MB in the beginning and 1.0GB in the end (delta: 532.7MB). Free memory was 355.8MB in the beginning and 900.4MB in the end (delta: -544.6MB). Peak memory consumption was 573.0MB. Max. memory is 16.0GB. [2023-01-27 18:59:47,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory is still 213.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 3987.40ms. Allocated memory was 348.1MB in the beginning and 490.7MB in the end (delta: 142.6MB). Free memory was 297.2MB in the beginning and 339.4MB in the end (delta: -42.2MB). Peak memory consumption was 112.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 159.15ms. Allocated memory is still 490.7MB. Free memory was 339.4MB in the beginning and 428.1MB in the end (delta: -88.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.0GB. * Boogie Preprocessor took 69.73ms. Allocated memory is still 490.7MB. Free memory was 428.1MB in the beginning and 421.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * RCFGBuilder took 1086.30ms. Allocated memory is still 490.7MB. Free memory was 421.8MB in the beginning and 355.8MB in the end (delta: 66.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.0GB. * TraceAbstraction took 829919.94ms. Allocated memory was 490.7MB in the beginning and 1.0GB in the end (delta: 532.7MB). Free memory was 355.8MB in the beginning and 900.4MB in the end (delta: -544.6MB). Peak memory consumption was 573.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 454.5s, 699 PlacesBefore, 37 PlacesAfterwards, 744 TransitionsBefore, 52 TransitionsAfterwards, 9868 CoEnabledTransitionPairs, 10 FixpointIterations, 571 TrivialSequentialCompositions, 130 ConcurrentSequentialCompositions, 84 TrivialYvCompositions, 21 ConcurrentYvCompositions, 30 ChoiceCompositions, 836 TotalNumberOfCompositions, 9086 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7977, independent: 7849, independent conditional: 0, independent unconditional: 7849, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5270, independent: 5237, independent conditional: 0, independent unconditional: 5237, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7977, independent: 2612, independent conditional: 0, independent unconditional: 2612, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 5270, unknown conditional: 0, unknown unconditional: 5270] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 49, Positive conditional cache size: 0, Positive unconditional cache size: 49, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - ExceptionOrErrorResult: SMTLIBException: Not enough levels on assertion stack de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Not enough levels on assertion stack: de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown