/usr/bin/java -Xmx8000000000 -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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:30:18,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:30:18,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:30:18,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:30:19,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:30:19,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:30:19,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:30:19,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:30:19,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:30:19,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:30:19,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:30:19,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:30:19,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:30:19,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:30:19,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:30:19,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:30:19,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:30:19,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:30:19,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:30:19,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:30:19,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:30:19,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:30:19,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:30:19,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:30:19,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:30:19,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:30:19,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:30:19,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:30:19,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:30:19,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:30:19,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:30:19,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:30:19,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:30:19,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:30:19,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:30:19,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:30:19,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:30:19,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:30:19,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:30:19,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:30:19,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:30:19,043 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-SemanticLbe.epf [2022-12-12 21:30:19,079 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:30:19,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:30:19,081 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:30:19,081 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:30:19,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:30:19,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:30:19,083 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:30:19,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:30:19,083 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:30:19,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:30:19,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:30:19,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:30:19,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:30:19,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:30:19,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:30:19,085 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:30:19,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:30:19,085 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:30:19,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:30:19,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:30:19,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:30:19,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:30:19,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:30:19,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:30:19,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:30:19,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:30:19,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:30:19,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:30:19,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:30:19,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:30:19,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:30:19,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:30:19,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:30:19,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:30:19,418 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:30:19,419 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:30:19,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2022-12-12 21:30:20,535 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:30:20,844 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:30:20,844 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2022-12-12 21:30:20,864 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ad95619f/c37796c9598041fc881f136c4e015e6b/FLAG87afe6f77 [2022-12-12 21:30:20,881 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ad95619f/c37796c9598041fc881f136c4e015e6b [2022-12-12 21:30:20,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:30:20,885 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:30:20,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:30:20,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:30:20,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:30:20,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:30:20" (1/1) ... [2022-12-12 21:30:20,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@732851da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:30:20, skipping insertion in model container [2022-12-12 21:30:20,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:30:20" (1/1) ... [2022-12-12 21:30:20,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:30:20,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:30:21,079 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-12 21:30:21,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,231 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] [2022-12-12 21:30:21,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,244 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,245 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,245 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,245 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,246 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,246 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,246 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,246 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,246 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,248 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,248 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,248 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,249 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,249 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,250 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] [2022-12-12 21:30:21,250 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,251 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,251 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,252 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,252 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,252 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:30:21,269 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:30:21,290 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-12 21:30:21,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,319 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] [2022-12-12 21:30:21,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,330 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,330 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,330 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,330 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,331 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,331 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,331 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,332 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,336 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] [2022-12-12 21:30:21,337 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,337 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,337 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:30:21,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:30:21,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:30:21,384 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:30:21,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:30:21 WrapperNode [2022-12-12 21:30:21,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:30:21,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:30:21,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:30:21,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:30:21,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:30:21" (1/1) ... [2022-12-12 21:30:21,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:30:21" (1/1) ... [2022-12-12 21:30:21,441 INFO L138 Inliner]: procedures = 171, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2022-12-12 21:30:21,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:30:21,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:30:21,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:30:21,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:30:21,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:30:21" (1/1) ... [2022-12-12 21:30:21,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:30:21" (1/1) ... [2022-12-12 21:30:21,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:30:21" (1/1) ... [2022-12-12 21:30:21,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:30:21" (1/1) ... [2022-12-12 21:30:21,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:30:21" (1/1) ... [2022-12-12 21:30:21,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:30:21" (1/1) ... [2022-12-12 21:30:21,480 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:30:21" (1/1) ... [2022-12-12 21:30:21,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:30:21" (1/1) ... [2022-12-12 21:30:21,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:30:21,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:30:21,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:30:21,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:30:21,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:30:21" (1/1) ... [2022-12-12 21:30:21,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:30:21,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:30:21,525 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) [2022-12-12 21:30:21,563 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 [2022-12-12 21:30:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 21:30:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-12 21:30:21,578 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-12 21:30:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-12 21:30:21,580 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-12 21:30:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:30:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 21:30:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:30:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:30:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:30:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:30:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 21:30:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:30:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:30:21,591 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:30:21,786 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:30:21,788 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:30:22,003 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:30:22,009 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:30:22,009 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-12 21:30:22,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:30:22 BoogieIcfgContainer [2022-12-12 21:30:22,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:30:22,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:30:22,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:30:22,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:30:22,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:30:20" (1/3) ... [2022-12-12 21:30:22,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7ff8a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:30:22, skipping insertion in model container [2022-12-12 21:30:22,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:30:21" (2/3) ... [2022-12-12 21:30:22,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7ff8a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:30:22, skipping insertion in model container [2022-12-12 21:30:22,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:30:22" (3/3) ... [2022-12-12 21:30:22,019 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski.i [2022-12-12 21:30:22,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:30:22,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 21:30:22,032 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:30:22,094 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 21:30:22,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 113 transitions, 242 flow [2022-12-12 21:30:22,165 INFO L130 PetriNetUnfolder]: 20/111 cut-off events. [2022-12-12 21:30:22,166 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 21:30:22,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 111 events. 20/111 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 148 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2022-12-12 21:30:22,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 113 transitions, 242 flow [2022-12-12 21:30:22,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 102 transitions, 213 flow [2022-12-12 21:30:22,178 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:30:22,193 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 102 transitions, 213 flow [2022-12-12 21:30:22,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 102 transitions, 213 flow [2022-12-12 21:30:22,227 INFO L130 PetriNetUnfolder]: 20/102 cut-off events. [2022-12-12 21:30:22,227 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 21:30:22,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 102 events. 20/102 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 148 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2022-12-12 21:30:22,232 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 102 transitions, 213 flow [2022-12-12 21:30:22,232 INFO L226 LiptonReduction]: Number of co-enabled transitions 3672 [2022-12-12 21:30:24,436 INFO L241 LiptonReduction]: Total number of compositions: 69 [2022-12-12 21:30:24,450 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:30:24,455 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;@773e4c05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:30:24,455 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-12 21:30:24,482 INFO L130 PetriNetUnfolder]: 15/65 cut-off events. [2022-12-12 21:30:24,482 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:30:24,482 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:30:24,483 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:30:24,483 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 21:30:24,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:30:24,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1271667008, now seen corresponding path program 1 times [2022-12-12 21:30:24,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:30:24,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105970282] [2022-12-12 21:30:24,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:30:24,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:30:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:30:24,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:30:24,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:30:24,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105970282] [2022-12-12 21:30:24,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105970282] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:30:24,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:30:24,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:30:24,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398009950] [2022-12-12 21:30:24,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:30:24,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:30:24,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:30:24,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:30:24,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:30:24,766 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 88 [2022-12-12 21:30:24,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 88 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2022-12-12 21:30:24,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:30:24,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 88 [2022-12-12 21:30:24,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:30:25,255 INFO L130 PetriNetUnfolder]: 3611/5557 cut-off events. [2022-12-12 21:30:25,255 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-12-12 21:30:25,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10566 conditions, 5557 events. 3611/5557 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 33230 event pairs, 960 based on Foata normal form. 61/2255 useless extension candidates. Maximal degree in co-relation 10223. Up to 3151 conditions per place. [2022-12-12 21:30:25,277 INFO L137 encePairwiseOnDemand]: 71/88 looper letters, 66 selfloop transitions, 5 changer transitions 11/108 dead transitions. [2022-12-12 21:30:25,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 108 transitions, 392 flow [2022-12-12 21:30:25,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:30:25,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:30:25,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2022-12-12 21:30:25,287 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-12 21:30:25,290 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, -3 predicate places. [2022-12-12 21:30:25,290 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 108 transitions, 392 flow [2022-12-12 21:30:25,338 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 97 transitions, 348 flow [2022-12-12 21:30:25,339 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 97 transitions, 348 flow [2022-12-12 21:30:25,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2022-12-12 21:30:25,340 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:30:25,340 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:30:25,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:30:25,340 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 21:30:25,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:30:25,341 INFO L85 PathProgramCache]: Analyzing trace with hash -525326120, now seen corresponding path program 1 times [2022-12-12 21:30:25,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:30:25,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390510653] [2022-12-12 21:30:25,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:30:25,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:30:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:30:25,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:30:25,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:30:25,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390510653] [2022-12-12 21:30:25,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390510653] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:30:25,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:30:25,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:30:25,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842602284] [2022-12-12 21:30:25,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:30:25,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:30:25,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:30:25,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:30:25,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:30:25,434 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 88 [2022-12-12 21:30:25,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 97 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2022-12-12 21:30:25,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:30:25,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 88 [2022-12-12 21:30:25,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:30:25,771 INFO L130 PetriNetUnfolder]: 2336/3937 cut-off events. [2022-12-12 21:30:25,772 INFO L131 PetriNetUnfolder]: For 318/386 co-relation queries the response was YES. [2022-12-12 21:30:25,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10458 conditions, 3937 events. 2336/3937 cut-off events. For 318/386 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 24290 event pairs, 582 based on Foata normal form. 62/1932 useless extension candidates. Maximal degree in co-relation 10139. Up to 1891 conditions per place. [2022-12-12 21:30:25,786 INFO L137 encePairwiseOnDemand]: 82/88 looper letters, 48 selfloop transitions, 4 changer transitions 17/95 dead transitions. [2022-12-12 21:30:25,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 95 transitions, 478 flow [2022-12-12 21:30:25,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:30:25,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:30:25,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2022-12-12 21:30:25,788 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5643939393939394 [2022-12-12 21:30:25,788 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, -7 predicate places. [2022-12-12 21:30:25,789 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 95 transitions, 478 flow [2022-12-12 21:30:25,799 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 78 transitions, 373 flow [2022-12-12 21:30:25,799 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 78 transitions, 373 flow [2022-12-12 21:30:25,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2022-12-12 21:30:25,800 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:30:25,800 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:30:25,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:30:25,800 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 21:30:25,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:30:25,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1142479598, now seen corresponding path program 1 times [2022-12-12 21:30:25,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:30:25,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860070769] [2022-12-12 21:30:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:30:25,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:30:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:30:25,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:30:25,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:30:25,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860070769] [2022-12-12 21:30:25,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860070769] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:30:25,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:30:25,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:30:25,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125256543] [2022-12-12 21:30:25,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:30:25,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:30:25,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:30:25,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:30:25,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:30:25,871 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 88 [2022-12-12 21:30:25,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 78 transitions, 373 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-12-12 21:30:25,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:30:25,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 88 [2022-12-12 21:30:25,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:30:26,303 INFO L130 PetriNetUnfolder]: 2065/3401 cut-off events. [2022-12-12 21:30:26,303 INFO L131 PetriNetUnfolder]: For 1632/1658 co-relation queries the response was YES. [2022-12-12 21:30:26,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11869 conditions, 3401 events. 2065/3401 cut-off events. For 1632/1658 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 18918 event pairs, 516 based on Foata normal form. 44/2085 useless extension candidates. Maximal degree in co-relation 11697. Up to 1909 conditions per place. [2022-12-12 21:30:26,315 INFO L137 encePairwiseOnDemand]: 65/88 looper letters, 64 selfloop transitions, 10 changer transitions 65/153 dead transitions. [2022-12-12 21:30:26,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 153 transitions, 1039 flow [2022-12-12 21:30:26,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:30:26,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:30:26,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 212 transitions. [2022-12-12 21:30:26,317 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4818181818181818 [2022-12-12 21:30:26,318 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, -7 predicate places. [2022-12-12 21:30:26,318 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 153 transitions, 1039 flow [2022-12-12 21:30:26,326 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 88 transitions, 597 flow [2022-12-12 21:30:26,327 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 88 transitions, 597 flow [2022-12-12 21:30:26,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-12-12 21:30:26,327 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:30:26,327 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:30:26,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:30:26,327 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 21:30:26,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:30:26,328 INFO L85 PathProgramCache]: Analyzing trace with hash 331163120, now seen corresponding path program 2 times [2022-12-12 21:30:26,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:30:26,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785359954] [2022-12-12 21:30:26,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:30:26,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:30:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:30:26,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:30:26,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:30:26,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785359954] [2022-12-12 21:30:26,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785359954] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:30:26,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:30:26,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:30:26,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476760904] [2022-12-12 21:30:26,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:30:26,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:30:26,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:30:26,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:30:26,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:30:26,373 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 88 [2022-12-12 21:30:26,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 88 transitions, 597 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-12-12 21:30:26,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:30:26,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 88 [2022-12-12 21:30:26,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:30:26,582 INFO L130 PetriNetUnfolder]: 957/1691 cut-off events. [2022-12-12 21:30:26,582 INFO L131 PetriNetUnfolder]: For 1072/1087 co-relation queries the response was YES. [2022-12-12 21:30:26,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7307 conditions, 1691 events. 957/1691 cut-off events. For 1072/1087 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8807 event pairs, 211 based on Foata normal form. 9/1133 useless extension candidates. Maximal degree in co-relation 7242. Up to 1089 conditions per place. [2022-12-12 21:30:26,592 INFO L137 encePairwiseOnDemand]: 69/88 looper letters, 89 selfloop transitions, 26 changer transitions 6/135 dead transitions. [2022-12-12 21:30:26,593 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 135 transitions, 1186 flow [2022-12-12 21:30:26,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:30:26,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:30:26,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 177 transitions. [2022-12-12 21:30:26,594 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4022727272727273 [2022-12-12 21:30:26,596 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, -9 predicate places. [2022-12-12 21:30:26,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 135 transitions, 1186 flow [2022-12-12 21:30:26,606 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 129 transitions, 1126 flow [2022-12-12 21:30:26,606 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 129 transitions, 1126 flow [2022-12-12 21:30:26,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-12-12 21:30:26,607 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:30:26,607 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:30:26,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 21:30:26,607 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 21:30:26,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:30:26,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1238336176, now seen corresponding path program 3 times [2022-12-12 21:30:26,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:30:26,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858976302] [2022-12-12 21:30:26,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:30:26,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:30:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:30:26,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:30:26,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:30:26,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858976302] [2022-12-12 21:30:26,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858976302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:30:26,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:30:26,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:30:26,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857152353] [2022-12-12 21:30:26,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:30:26,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:30:26,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:30:26,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:30:26,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:30:26,663 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 88 [2022-12-12 21:30:26,663 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 129 transitions, 1126 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-12-12 21:30:26,663 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:30:26,663 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 88 [2022-12-12 21:30:26,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:30:26,939 INFO L130 PetriNetUnfolder]: 1182/2213 cut-off events. [2022-12-12 21:30:26,939 INFO L131 PetriNetUnfolder]: For 2040/2051 co-relation queries the response was YES. [2022-12-12 21:30:26,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11109 conditions, 2213 events. 1182/2213 cut-off events. For 2040/2051 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 13021 event pairs, 120 based on Foata normal form. 0/1519 useless extension candidates. Maximal degree in co-relation 10979. Up to 1328 conditions per place. [2022-12-12 21:30:26,955 INFO L137 encePairwiseOnDemand]: 75/88 looper letters, 174 selfloop transitions, 26 changer transitions 0/214 dead transitions. [2022-12-12 21:30:26,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 214 transitions, 2342 flow [2022-12-12 21:30:26,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:30:26,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:30:26,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 186 transitions. [2022-12-12 21:30:26,957 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.42272727272727273 [2022-12-12 21:30:26,957 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, -5 predicate places. [2022-12-12 21:30:26,958 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 214 transitions, 2342 flow [2022-12-12 21:30:26,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 214 transitions, 2342 flow [2022-12-12 21:30:26,970 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 214 transitions, 2342 flow [2022-12-12 21:30:26,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2022-12-12 21:30:26,970 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:30:26,970 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:30:26,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 21:30:26,971 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-12 21:30:26,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:30:26,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1520713894, now seen corresponding path program 4 times [2022-12-12 21:30:26,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:30:26,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663905670] [2022-12-12 21:30:26,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:30:26,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:30:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:30:27,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:30:27,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:30:27,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663905670] [2022-12-12 21:30:27,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663905670] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:30:27,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:30:27,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:30:27,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608959351] [2022-12-12 21:30:27,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:30:27,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:30:27,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:30:27,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:30:27,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:30:27,010 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 88 [2022-12-12 21:30:27,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 214 transitions, 2342 flow. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-12-12 21:30:27,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:30:27,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 88 [2022-12-12 21:30:27,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:30:27,261 INFO L130 PetriNetUnfolder]: 1502/2438 cut-off events. [2022-12-12 21:30:27,261 INFO L131 PetriNetUnfolder]: For 7647/7894 co-relation queries the response was YES. [2022-12-12 21:30:27,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14122 conditions, 2438 events. 1502/2438 cut-off events. For 7647/7894 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 12480 event pairs, 147 based on Foata normal form. 36/1766 useless extension candidates. Maximal degree in co-relation 14097. Up to 1486 conditions per place. [2022-12-12 21:30:27,270 INFO L137 encePairwiseOnDemand]: 72/88 looper letters, 0 selfloop transitions, 0 changer transitions 271/271 dead transitions. [2022-12-12 21:30:27,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 271 transitions, 3412 flow [2022-12-12 21:30:27,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:30:27,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:30:27,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2022-12-12 21:30:27,271 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.37727272727272726 [2022-12-12 21:30:27,272 INFO L295 CegarLoopForPetriNet]: 78 programPoint places, -13 predicate places. [2022-12-12 21:30:27,272 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 271 transitions, 3412 flow [2022-12-12 21:30:27,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 21:30:27,276 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 21:30:27,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-12-12 21:30:27,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-12 21:30:27,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-12 21:30:27,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-12 21:30:27,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-12 21:30:27,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-12-12 21:30:27,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-12 21:30:27,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 21:30:27,280 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1] [2022-12-12 21:30:27,284 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 21:30:27,284 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 21:30:27,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 09:30:27 BasicIcfg [2022-12-12 21:30:27,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 21:30:27,288 INFO L158 Benchmark]: Toolchain (without parser) took 6402.88ms. Allocated memory was 190.8MB in the beginning and 335.5MB in the end (delta: 144.7MB). Free memory was 165.5MB in the beginning and 110.9MB in the end (delta: 54.6MB). Peak memory consumption was 200.0MB. Max. memory is 8.0GB. [2022-12-12 21:30:27,288 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 190.8MB. Free memory is still 167.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 21:30:27,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.98ms. Allocated memory is still 190.8MB. Free memory was 165.2MB in the beginning and 139.0MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-12-12 21:30:27,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.30ms. Allocated memory is still 190.8MB. Free memory was 138.5MB in the beginning and 136.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 21:30:27,289 INFO L158 Benchmark]: Boogie Preprocessor took 40.82ms. Allocated memory is still 190.8MB. Free memory was 136.9MB in the beginning and 135.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 21:30:27,289 INFO L158 Benchmark]: RCFGBuilder took 527.46ms. Allocated memory is still 190.8MB. Free memory was 135.4MB in the beginning and 120.1MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-12 21:30:27,290 INFO L158 Benchmark]: TraceAbstraction took 5273.56ms. Allocated memory was 190.8MB in the beginning and 335.5MB in the end (delta: 144.7MB). Free memory was 119.1MB in the beginning and 110.9MB in the end (delta: 8.2MB). Peak memory consumption was 153.9MB. Max. memory is 8.0GB. [2022-12-12 21:30:27,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 190.8MB. Free memory is still 167.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 497.98ms. Allocated memory is still 190.8MB. Free memory was 165.2MB in the beginning and 139.0MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.30ms. Allocated memory is still 190.8MB. Free memory was 138.5MB in the beginning and 136.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.82ms. Allocated memory is still 190.8MB. Free memory was 136.9MB in the beginning and 135.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 527.46ms. Allocated memory is still 190.8MB. Free memory was 135.4MB in the beginning and 120.1MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 5273.56ms. Allocated memory was 190.8MB in the beginning and 335.5MB in the end (delta: 144.7MB). Free memory was 119.1MB in the beginning and 110.9MB in the end (delta: 8.2MB). Peak memory consumption was 153.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 89 PlacesBefore, 78 PlacesAfterwards, 102 TransitionsBefore, 88 TransitionsAfterwards, 3672 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 34 ConcurrentYvCompositions, 11 ChoiceCompositions, 69 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3953, independent: 3825, independent conditional: 3825, independent unconditional: 0, dependent: 128, dependent conditional: 128, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3953, independent: 3825, independent conditional: 0, independent unconditional: 3825, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3953, independent: 3825, independent conditional: 0, independent unconditional: 3825, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3953, independent: 3825, independent conditional: 0, independent unconditional: 3825, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2742, independent: 2685, independent conditional: 0, independent unconditional: 2685, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2742, independent: 2643, independent conditional: 0, independent unconditional: 2643, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 99, independent: 42, independent conditional: 0, independent unconditional: 42, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 161, independent: 56, independent conditional: 0, independent unconditional: 56, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3953, independent: 1140, independent conditional: 0, independent unconditional: 1140, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 2742, unknown conditional: 0, unknown unconditional: 2742] , Statistics on independence cache: Total cache size (in pairs): 4873, Positive cache size: 4816, Positive conditional cache size: 0, Positive unconditional cache size: 4816, Negative cache size: 57, Negative conditional cache size: 0, Negative unconditional cache size: 57, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 802]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 745]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 150 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 267 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 267 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 916 IncrementalHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 47 mSDtfsCounter, 916 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2342occurred in iteration=5, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4063 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 21:30:27,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...