/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-NoLbe.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-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 23:43:21,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 23:43:21,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 23:43:21,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 23:43:21,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 23:43:21,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 23:43:21,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 23:43:21,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 23:43:21,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 23:43:21,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 23:43:21,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 23:43:21,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 23:43:21,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 23:43:21,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 23:43:21,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 23:43:21,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 23:43:21,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 23:43:21,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 23:43:21,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 23:43:21,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 23:43:21,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 23:43:21,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 23:43:21,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 23:43:21,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 23:43:21,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 23:43:21,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 23:43:21,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 23:43:21,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 23:43:21,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 23:43:21,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 23:43:21,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 23:43:21,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 23:43:21,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 23:43:21,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 23:43:21,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 23:43:21,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 23:43:21,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 23:43:21,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 23:43:21,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 23:43:21,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 23:43:21,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 23:43:21,372 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-NoLbe.epf [2022-12-11 23:43:21,386 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 23:43:21,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 23:43:21,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 23:43:21,387 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 23:43:21,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 23:43:21,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 23:43:21,388 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 23:43:21,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 23:43:21,388 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 23:43:21,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 23:43:21,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 23:43:21,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 23:43:21,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 23:43:21,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 23:43:21,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 23:43:21,388 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 23:43:21,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 23:43:21,389 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 23:43:21,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 23:43:21,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 23:43:21,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 23:43:21,389 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 23:43:21,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 23:43:21,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:43:21,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 23:43:21,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 23:43:21,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 23:43:21,390 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 23:43:21,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 23:43:21,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 23:43:21,390 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 23:43:21,390 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-11 23:43:21,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 23:43:21,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 23:43:21,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 23:43:21,677 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 23:43:21,677 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 23:43:21,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2022-12-11 23:43:22,763 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 23:43:23,000 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 23:43:23,000 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2022-12-11 23:43:23,015 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3d65610c/bb00018a51dd45d7adb0a188f62c9296/FLAGac92dff41 [2022-12-11 23:43:23,030 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3d65610c/bb00018a51dd45d7adb0a188f62c9296 [2022-12-11 23:43:23,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 23:43:23,033 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 23:43:23,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 23:43:23,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 23:43:23,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 23:43:23,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:43:23" (1/1) ... [2022-12-11 23:43:23,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59bf7ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:23, skipping insertion in model container [2022-12-11 23:43:23,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:43:23" (1/1) ... [2022-12-11 23:43:23,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 23:43:23,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 23:43:23,210 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-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i[992,1005] [2022-12-11 23:43:23,343 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,347 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,347 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,347 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,347 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,361 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:43:23,374 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 23:43:23,385 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-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i[992,1005] [2022-12-11 23:43:23,408 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:43:23,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:43:23,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:43:23,462 INFO L208 MainTranslator]: Completed translation [2022-12-11 23:43:23,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:23 WrapperNode [2022-12-11 23:43:23,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 23:43:23,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 23:43:23,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 23:43:23,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 23:43:23,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:23" (1/1) ... [2022-12-11 23:43:23,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:23" (1/1) ... [2022-12-11 23:43:23,510 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-11 23:43:23,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 23:43:23,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 23:43:23,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 23:43:23,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 23:43:23,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:23" (1/1) ... [2022-12-11 23:43:23,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:23" (1/1) ... [2022-12-11 23:43:23,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:23" (1/1) ... [2022-12-11 23:43:23,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:23" (1/1) ... [2022-12-11 23:43:23,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:23" (1/1) ... [2022-12-11 23:43:23,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:23" (1/1) ... [2022-12-11 23:43:23,536 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:23" (1/1) ... [2022-12-11 23:43:23,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:23" (1/1) ... [2022-12-11 23:43:23,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 23:43:23,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 23:43:23,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 23:43:23,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 23:43:23,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:23" (1/1) ... [2022-12-11 23:43:23,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:43:23,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 23:43:23,567 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) [2022-12-11 23:43:23,590 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 [2022-12-11 23:43:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 23:43:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 23:43:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 23:43:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 23:43:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 23:43:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 23:43:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 23:43:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 23:43:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 23:43:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 23:43:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 23:43:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 23:43:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 23:43:23,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 23:43:23,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 23:43:23,624 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 23:43:23,743 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 23:43:23,758 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 23:43:23,867 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 23:43:23,872 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 23:43:23,872 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 23:43:23,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:43:23 BoogieIcfgContainer [2022-12-11 23:43:23,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 23:43:23,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 23:43:23,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 23:43:23,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 23:43:23,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 11:43:23" (1/3) ... [2022-12-11 23:43:23,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5cfe3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:43:23, skipping insertion in model container [2022-12-11 23:43:23,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:43:23" (2/3) ... [2022-12-11 23:43:23,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5cfe3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:43:23, skipping insertion in model container [2022-12-11 23:43:23,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:43:23" (3/3) ... [2022-12-11 23:43:23,893 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2022-12-11 23:43:23,904 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 23:43:23,904 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 23:43:23,905 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 23:43:23,964 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 23:43:23,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-11 23:43:24,016 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-11 23:43:24,016 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:43:24,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-11 23:43:24,019 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-11 23:43:24,022 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-11 23:43:24,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 23:43:24,032 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;@3bc209d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 23:43:24,032 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 23:43:24,057 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-11 23:43:24,057 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:43:24,058 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:24,058 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:24,059 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:43:24,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:24,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1785307206, now seen corresponding path program 1 times [2022-12-11 23:43:24,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:24,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13268877] [2022-12-11 23:43:24,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:24,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:24,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:24,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:24,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13268877] [2022-12-11 23:43:24,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13268877] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:24,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:24,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:43:24,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655705809] [2022-12-11 23:43:24,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:24,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:43:24,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:24,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:43:24,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:43:24,607 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 23:43:24,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 149 flow. Second operand has 7 states, 7 states have (on average 64.85714285714286) internal successors, (454), 7 states have internal predecessors, (454), 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) [2022-12-11 23:43:24,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:24,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 23:43:24,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:24,909 INFO L130 PetriNetUnfolder]: 192/505 cut-off events. [2022-12-11 23:43:24,909 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-11 23:43:24,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 505 events. 192/505 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2462 event pairs, 18 based on Foata normal form. 30/509 useless extension candidates. Maximal degree in co-relation 841. Up to 68 conditions per place. [2022-12-11 23:43:24,916 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 21 selfloop transitions, 5 changer transitions 42/119 dead transitions. [2022-12-11 23:43:24,916 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 119 transitions, 383 flow [2022-12-11 23:43:24,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:43:24,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:43:24,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 893 transitions. [2022-12-11 23:43:24,932 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8081447963800905 [2022-12-11 23:43:24,936 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 12 predicate places. [2022-12-11 23:43:24,936 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 119 transitions, 383 flow [2022-12-11 23:43:24,938 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 77 transitions, 215 flow [2022-12-11 23:43:24,939 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 77 transitions, 215 flow [2022-12-11 23:43:24,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.85714285714286) internal successors, (454), 7 states have internal predecessors, (454), 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) [2022-12-11 23:43:24,939 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:24,940 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:24,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 23:43:24,940 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:43:24,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:24,942 INFO L85 PathProgramCache]: Analyzing trace with hash -589109222, now seen corresponding path program 1 times [2022-12-11 23:43:24,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:24,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277988946] [2022-12-11 23:43:24,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:24,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:25,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:25,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:25,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277988946] [2022-12-11 23:43:25,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277988946] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:25,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:25,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:43:25,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383789259] [2022-12-11 23:43:25,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:25,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:43:25,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:25,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:43:25,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:43:25,158 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:43:25,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 215 flow. Second operand has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 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) [2022-12-11 23:43:25,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:25,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:43:25,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:25,313 INFO L130 PetriNetUnfolder]: 339/931 cut-off events. [2022-12-11 23:43:25,314 INFO L131 PetriNetUnfolder]: For 27/29 co-relation queries the response was YES. [2022-12-11 23:43:25,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1675 conditions, 931 events. 339/931 cut-off events. For 27/29 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 6390 event pairs, 16 based on Foata normal form. 0/867 useless extension candidates. Maximal degree in co-relation 1636. Up to 216 conditions per place. [2022-12-11 23:43:25,319 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 25 selfloop transitions, 15 changer transitions 5/108 dead transitions. [2022-12-11 23:43:25,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 108 transitions, 372 flow [2022-12-11 23:43:25,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:43:25,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:43:25,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 727 transitions. [2022-12-11 23:43:25,321 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8552941176470589 [2022-12-11 23:43:25,321 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 12 predicate places. [2022-12-11 23:43:25,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 108 transitions, 372 flow [2022-12-11 23:43:25,324 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 103 transitions, 352 flow [2022-12-11 23:43:25,324 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 103 transitions, 352 flow [2022-12-11 23:43:25,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 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) [2022-12-11 23:43:25,325 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:25,325 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:25,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 23:43:25,325 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:43:25,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:25,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1895924857, now seen corresponding path program 1 times [2022-12-11 23:43:25,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:25,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569583886] [2022-12-11 23:43:25,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:25,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:25,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:25,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:25,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569583886] [2022-12-11 23:43:25,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569583886] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:25,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:25,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:43:25,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255306848] [2022-12-11 23:43:25,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:25,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:43:25,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:25,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:43:25,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:43:25,482 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:43:25,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 103 transitions, 352 flow. Second operand has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 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) [2022-12-11 23:43:25,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:25,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:43:25,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:25,678 INFO L130 PetriNetUnfolder]: 264/815 cut-off events. [2022-12-11 23:43:25,678 INFO L131 PetriNetUnfolder]: For 110/318 co-relation queries the response was YES. [2022-12-11 23:43:25,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1966 conditions, 815 events. 264/815 cut-off events. For 110/318 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5788 event pairs, 12 based on Foata normal form. 49/816 useless extension candidates. Maximal degree in co-relation 1923. Up to 220 conditions per place. [2022-12-11 23:43:25,682 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 26 selfloop transitions, 36 changer transitions 20/145 dead transitions. [2022-12-11 23:43:25,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 145 transitions, 684 flow [2022-12-11 23:43:25,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:43:25,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:43:25,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 942 transitions. [2022-12-11 23:43:25,684 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8524886877828054 [2022-12-11 23:43:25,685 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 24 predicate places. [2022-12-11 23:43:25,685 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 145 transitions, 684 flow [2022-12-11 23:43:25,688 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 125 transitions, 564 flow [2022-12-11 23:43:25,689 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 125 transitions, 564 flow [2022-12-11 23:43:25,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 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) [2022-12-11 23:43:25,689 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:25,689 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:25,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 23:43:25,689 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:43:25,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:25,691 INFO L85 PathProgramCache]: Analyzing trace with hash -750119676, now seen corresponding path program 1 times [2022-12-11 23:43:25,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:25,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166656990] [2022-12-11 23:43:25,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:25,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:25,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:25,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:25,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166656990] [2022-12-11 23:43:25,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166656990] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:25,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:25,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:43:25,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74567535] [2022-12-11 23:43:25,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:25,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:43:25,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:25,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:43:25,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:43:25,885 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 85 [2022-12-11 23:43:25,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 125 transitions, 564 flow. Second operand has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 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) [2022-12-11 23:43:25,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:25,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 85 [2022-12-11 23:43:25,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:26,076 INFO L130 PetriNetUnfolder]: 458/1656 cut-off events. [2022-12-11 23:43:26,076 INFO L131 PetriNetUnfolder]: For 237/369 co-relation queries the response was YES. [2022-12-11 23:43:26,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4142 conditions, 1656 events. 458/1656 cut-off events. For 237/369 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 15563 event pairs, 8 based on Foata normal form. 7/1571 useless extension candidates. Maximal degree in co-relation 4094. Up to 467 conditions per place. [2022-12-11 23:43:26,083 INFO L137 encePairwiseOnDemand]: 78/85 looper letters, 37 selfloop transitions, 4 changer transitions 10/153 dead transitions. [2022-12-11 23:43:26,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 153 transitions, 799 flow [2022-12-11 23:43:26,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:43:26,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:43:26,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 496 transitions. [2022-12-11 23:43:26,085 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8336134453781513 [2022-12-11 23:43:26,086 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 30 predicate places. [2022-12-11 23:43:26,086 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 153 transitions, 799 flow [2022-12-11 23:43:26,091 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 143 transitions, 739 flow [2022-12-11 23:43:26,092 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 143 transitions, 739 flow [2022-12-11 23:43:26,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 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) [2022-12-11 23:43:26,092 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:26,092 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:26,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 23:43:26,093 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:43:26,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:26,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1378247740, now seen corresponding path program 2 times [2022-12-11 23:43:26,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:26,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964682417] [2022-12-11 23:43:26,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:26,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:26,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:26,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:26,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964682417] [2022-12-11 23:43:26,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964682417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:26,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:26,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:43:26,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691218507] [2022-12-11 23:43:26,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:26,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:43:26,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:26,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:43:26,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:43:26,256 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-11 23:43:26,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 143 transitions, 739 flow. Second operand has 7 states, 7 states have (on average 65.42857142857143) internal successors, (458), 7 states have internal predecessors, (458), 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) [2022-12-11 23:43:26,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:26,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-11 23:43:26,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:26,455 INFO L130 PetriNetUnfolder]: 455/1596 cut-off events. [2022-12-11 23:43:26,455 INFO L131 PetriNetUnfolder]: For 350/533 co-relation queries the response was YES. [2022-12-11 23:43:26,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4154 conditions, 1596 events. 455/1596 cut-off events. For 350/533 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 14937 event pairs, 6 based on Foata normal form. 17/1523 useless extension candidates. Maximal degree in co-relation 4099. Up to 464 conditions per place. [2022-12-11 23:43:26,460 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 25 selfloop transitions, 11 changer transitions 17/151 dead transitions. [2022-12-11 23:43:26,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 151 transitions, 905 flow [2022-12-11 23:43:26,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:43:26,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:43:26,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 481 transitions. [2022-12-11 23:43:26,462 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8084033613445378 [2022-12-11 23:43:26,463 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 33 predicate places. [2022-12-11 23:43:26,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 151 transitions, 905 flow [2022-12-11 23:43:26,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 134 transitions, 743 flow [2022-12-11 23:43:26,466 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 134 transitions, 743 flow [2022-12-11 23:43:26,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.42857142857143) internal successors, (458), 7 states have internal predecessors, (458), 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) [2022-12-11 23:43:26,467 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:26,467 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:26,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 23:43:26,467 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:43:26,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:26,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1222553528, now seen corresponding path program 3 times [2022-12-11 23:43:26,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:26,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298797201] [2022-12-11 23:43:26,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:26,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:26,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:26,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:26,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298797201] [2022-12-11 23:43:26,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298797201] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:26,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:26,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:43:26,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068716561] [2022-12-11 23:43:26,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:26,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:43:26,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:26,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:43:26,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:43:26,592 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:43:26,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 134 transitions, 743 flow. Second operand has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 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) [2022-12-11 23:43:26,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:26,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:43:26,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:26,821 INFO L130 PetriNetUnfolder]: 317/1186 cut-off events. [2022-12-11 23:43:26,822 INFO L131 PetriNetUnfolder]: For 498/1402 co-relation queries the response was YES. [2022-12-11 23:43:26,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3801 conditions, 1186 events. 317/1186 cut-off events. For 498/1402 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 10901 event pairs, 1 based on Foata normal form. 142/1269 useless extension candidates. Maximal degree in co-relation 3742. Up to 327 conditions per place. [2022-12-11 23:43:26,826 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 23 selfloop transitions, 40 changer transitions 27/149 dead transitions. [2022-12-11 23:43:26,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 149 transitions, 989 flow [2022-12-11 23:43:26,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 23:43:26,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 23:43:26,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1144 transitions. [2022-12-11 23:43:26,829 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8411764705882353 [2022-12-11 23:43:26,831 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 45 predicate places. [2022-12-11 23:43:26,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 149 transitions, 989 flow [2022-12-11 23:43:26,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 122 transitions, 764 flow [2022-12-11 23:43:26,834 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 122 transitions, 764 flow [2022-12-11 23:43:26,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 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) [2022-12-11 23:43:26,834 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:43:26,834 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:43:26,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 23:43:26,835 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:43:26,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:43:26,835 INFO L85 PathProgramCache]: Analyzing trace with hash 8299826, now seen corresponding path program 1 times [2022-12-11 23:43:26,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:43:26,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16733304] [2022-12-11 23:43:26,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:43:26,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:43:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:43:26,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:43:26,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:43:26,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16733304] [2022-12-11 23:43:26,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16733304] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:43:26,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:43:26,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:43:26,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582999432] [2022-12-11 23:43:26,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:43:26,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:43:26,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:43:26,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:43:26,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:43:26,983 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 85 [2022-12-11 23:43:26,984 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 122 transitions, 764 flow. Second operand has 7 states, 7 states have (on average 63.857142857142854) internal successors, (447), 7 states have internal predecessors, (447), 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) [2022-12-11 23:43:26,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:43:26,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 85 [2022-12-11 23:43:26,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:43:27,099 INFO L130 PetriNetUnfolder]: 149/592 cut-off events. [2022-12-11 23:43:27,099 INFO L131 PetriNetUnfolder]: For 326/418 co-relation queries the response was YES. [2022-12-11 23:43:27,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1953 conditions, 592 events. 149/592 cut-off events. For 326/418 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4347 event pairs, 1 based on Foata normal form. 2/562 useless extension candidates. Maximal degree in co-relation 1886. Up to 147 conditions per place. [2022-12-11 23:43:27,102 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 0 selfloop transitions, 0 changer transitions 127/127 dead transitions. [2022-12-11 23:43:27,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 127 transitions, 873 flow [2022-12-11 23:43:27,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 23:43:27,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 23:43:27,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 516 transitions. [2022-12-11 23:43:27,103 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7588235294117647 [2022-12-11 23:43:27,103 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 46 predicate places. [2022-12-11 23:43:27,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 127 transitions, 873 flow [2022-12-11 23:43:27,104 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 23:43:27,104 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 23:43:27,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.857142857142854) internal successors, (447), 7 states have internal predecessors, (447), 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) [2022-12-11 23:43:27,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 23:43:27,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 23:43:27,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 23:43:27,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 23:43:27,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 23:43:27,107 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2022-12-11 23:43:27,109 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 23:43:27,109 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 23:43:27,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 11:43:27 BasicIcfg [2022-12-11 23:43:27,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 23:43:27,112 INFO L158 Benchmark]: Toolchain (without parser) took 4079.70ms. Allocated memory was 210.8MB in the beginning and 332.4MB in the end (delta: 121.6MB). Free memory was 184.6MB in the beginning and 233.6MB in the end (delta: -49.0MB). Peak memory consumption was 73.4MB. Max. memory is 8.0GB. [2022-12-11 23:43:27,113 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 210.8MB. Free memory was 186.8MB in the beginning and 186.7MB in the end (delta: 92.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 23:43:27,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.60ms. Allocated memory is still 210.8MB. Free memory was 184.6MB in the beginning and 160.5MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-11 23:43:27,113 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.17ms. Allocated memory is still 210.8MB. Free memory was 160.5MB in the beginning and 158.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 23:43:27,113 INFO L158 Benchmark]: Boogie Preprocessor took 26.27ms. Allocated memory is still 210.8MB. Free memory was 158.8MB in the beginning and 157.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 23:43:27,114 INFO L158 Benchmark]: RCFGBuilder took 335.07ms. Allocated memory is still 210.8MB. Free memory was 157.1MB in the beginning and 143.8MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-11 23:43:27,114 INFO L158 Benchmark]: TraceAbstraction took 3236.70ms. Allocated memory was 210.8MB in the beginning and 332.4MB in the end (delta: 121.6MB). Free memory was 142.4MB in the beginning and 233.6MB in the end (delta: -91.2MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-12-11 23:43:27,115 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 210.8MB. Free memory was 186.8MB in the beginning and 186.7MB in the end (delta: 92.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 429.60ms. Allocated memory is still 210.8MB. Free memory was 184.6MB in the beginning and 160.5MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.17ms. Allocated memory is still 210.8MB. Free memory was 160.5MB in the beginning and 158.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.27ms. Allocated memory is still 210.8MB. Free memory was 158.8MB in the beginning and 157.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 335.07ms. Allocated memory is still 210.8MB. Free memory was 157.1MB in the beginning and 143.8MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3236.70ms. Allocated memory was 210.8MB in the beginning and 332.4MB in the end (delta: 121.6MB). Free memory was 142.4MB in the beginning and 233.6MB in the end (delta: -91.2MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 319 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 319 mSDsluCounter, 364 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 283 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 468 IncrementalHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 81 mSDtfsCounter, 468 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=764occurred in iteration=6, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 1628 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 397 NumberOfCodeBlocks, 397 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 390 ConstructedInterpolants, 0 QuantifiedInterpolants, 1734 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 23:43:27,143 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...