/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 21:04:18,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 21:04:18,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 21:04:18,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 21:04:18,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 21:04:18,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 21:04:18,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 21:04:18,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 21:04:18,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 21:04:18,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 21:04:18,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 21:04:18,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 21:04:18,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 21:04:18,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 21:04:18,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 21:04:18,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 21:04:18,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 21:04:18,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 21:04:18,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 21:04:18,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 21:04:18,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 21:04:18,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 21:04:18,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 21:04:18,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 21:04:18,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 21:04:18,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 21:04:18,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 21:04:18,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 21:04:18,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 21:04:18,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 21:04:18,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 21:04:18,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 21:04:18,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 21:04:18,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 21:04:18,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 21:04:18,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 21:04:18,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 21:04:18,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 21:04:18,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 21:04:18,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 21:04:18,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 21:04:18,563 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 21:04:18,587 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 21:04:18,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 21:04:18,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 21:04:18,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 21:04:18,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 21:04:18,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 21:04:18,590 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 21:04:18,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 21:04:18,590 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 21:04:18,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 21:04:18,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 21:04:18,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 21:04:18,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 21:04:18,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 21:04:18,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 21:04:18,599 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 21:04:18,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 21:04:18,599 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 21:04:18,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 21:04:18,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 21:04:18,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 21:04:18,600 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 21:04:18,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 21:04:18,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:04:18,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 21:04:18,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 21:04:18,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 21:04:18,600 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 21:04:18,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 21:04:18,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 21:04:18,601 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 21:04:18,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-11 21:04:18,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 21:04:18,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 21:04:18,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 21:04:18,845 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 21:04:18,845 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 21:04:18,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.i [2022-12-11 21:04:19,811 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 21:04:20,017 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 21:04:20,019 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.i [2022-12-11 21:04:20,038 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b472f942b/ede279227ad648989bf7f41b808d39d2/FLAGe10294124 [2022-12-11 21:04:20,051 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b472f942b/ede279227ad648989bf7f41b808d39d2 [2022-12-11 21:04:20,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 21:04:20,054 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 21:04:20,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 21:04:20,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 21:04:20,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 21:04:20,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:04:20" (1/1) ... [2022-12-11 21:04:20,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ddce235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:20, skipping insertion in model container [2022-12-11 21:04:20,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:04:20" (1/1) ... [2022-12-11 21:04:20,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 21:04:20,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 21:04:20,237 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/safe024_tso.i[945,958] [2022-12-11 21:04:20,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:04:20,392 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 21:04:20,401 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/safe024_tso.i[945,958] [2022-12-11 21:04:20,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:04:20,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:04:20,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:04:20,457 INFO L208 MainTranslator]: Completed translation [2022-12-11 21:04:20,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:20 WrapperNode [2022-12-11 21:04:20,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 21:04:20,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 21:04:20,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 21:04:20,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 21:04:20,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:20" (1/1) ... [2022-12-11 21:04:20,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:20" (1/1) ... [2022-12-11 21:04:20,501 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-12-11 21:04:20,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 21:04:20,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 21:04:20,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 21:04:20,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 21:04:20,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:20" (1/1) ... [2022-12-11 21:04:20,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:20" (1/1) ... [2022-12-11 21:04:20,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:20" (1/1) ... [2022-12-11 21:04:20,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:20" (1/1) ... [2022-12-11 21:04:20,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:20" (1/1) ... [2022-12-11 21:04:20,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:20" (1/1) ... [2022-12-11 21:04:20,534 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:20" (1/1) ... [2022-12-11 21:04:20,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:20" (1/1) ... [2022-12-11 21:04:20,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 21:04:20,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 21:04:20,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 21:04:20,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 21:04:20,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:20" (1/1) ... [2022-12-11 21:04:20,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:04:20,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:04:20,579 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 21:04:20,584 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 21:04:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 21:04:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 21:04:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 21:04:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 21:04:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 21:04:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 21:04:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 21:04:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 21:04:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 21:04:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 21:04:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 21:04:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 21:04:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 21:04:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 21:04:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 21:04:20,606 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 21:04:20,747 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 21:04:20,748 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 21:04:20,892 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 21:04:20,897 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 21:04:20,897 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 21:04:20,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:04:20 BoogieIcfgContainer [2022-12-11 21:04:20,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 21:04:20,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 21:04:20,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 21:04:20,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 21:04:20,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 09:04:20" (1/3) ... [2022-12-11 21:04:20,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6819acfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:04:20, skipping insertion in model container [2022-12-11 21:04:20,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:04:20" (2/3) ... [2022-12-11 21:04:20,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6819acfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:04:20, skipping insertion in model container [2022-12-11 21:04:20,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:04:20" (3/3) ... [2022-12-11 21:04:20,905 INFO L112 eAbstractionObserver]: Analyzing ICFG safe024_tso.i [2022-12-11 21:04:20,919 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 21:04:20,919 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 21:04:20,919 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 21:04:20,989 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 21:04:21,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 187 flow [2022-12-11 21:04:21,070 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-11 21:04:21,070 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:04:21,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-11 21:04:21,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 86 transitions, 187 flow [2022-12-11 21:04:21,079 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 71 transitions, 151 flow [2022-12-11 21:04:21,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 21:04:21,094 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;@9a47967, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 21:04:21,095 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 21:04:21,117 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-11 21:04:21,118 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:04:21,118 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:04:21,119 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] [2022-12-11 21:04:21,119 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 21:04:21,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:04:21,122 INFO L85 PathProgramCache]: Analyzing trace with hash -826740837, now seen corresponding path program 1 times [2022-12-11 21:04:21,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:04:21,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505493592] [2022-12-11 21:04:21,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:04:21,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:04:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:04:21,664 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 21:04:21,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:04:21,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505493592] [2022-12-11 21:04:21,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505493592] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:04:21,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:04:21,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 21:04:21,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776773916] [2022-12-11 21:04:21,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:04:21,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 21:04:21,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:04:21,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 21:04:21,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 21:04:21,707 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 86 [2022-12-11 21:04:21,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 71 transitions, 151 flow. Second operand has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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 21:04:21,711 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:04:21,711 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 86 [2022-12-11 21:04:21,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:04:21,829 INFO L130 PetriNetUnfolder]: 3/85 cut-off events. [2022-12-11 21:04:21,829 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-11 21:04:21,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 85 events. 3/85 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 4/88 useless extension candidates. Maximal degree in co-relation 85. Up to 7 conditions per place. [2022-12-11 21:04:21,831 INFO L137 encePairwiseOnDemand]: 79/86 looper letters, 9 selfloop transitions, 2 changer transitions 11/80 dead transitions. [2022-12-11 21:04:21,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 80 transitions, 211 flow [2022-12-11 21:04:21,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 21:04:21,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 21:04:21,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 664 transitions. [2022-12-11 21:04:21,846 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8578811369509044 [2022-12-11 21:04:21,851 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 8 predicate places. [2022-12-11 21:04:21,852 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 80 transitions, 211 flow [2022-12-11 21:04:21,854 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 69 transitions, 169 flow [2022-12-11 21:04:21,856 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 69 transitions, 169 flow [2022-12-11 21:04:21,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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 21:04:21,856 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:04:21,856 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] [2022-12-11 21:04:21,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 21:04:21,857 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 21:04:21,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:04:21,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1398966044, now seen corresponding path program 1 times [2022-12-11 21:04:21,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:04:21,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911296958] [2022-12-11 21:04:21,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:04:21,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:04:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:04:22,070 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 21:04:22,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:04:22,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911296958] [2022-12-11 21:04:22,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911296958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:04:22,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:04:22,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:04:22,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228958490] [2022-12-11 21:04:22,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:04:22,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:04:22,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:04:22,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:04:22,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:04:22,074 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 21:04:22,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 69 transitions, 169 flow. Second operand has 7 states, 7 states have (on average 70.71428571428571) internal successors, (495), 7 states have internal predecessors, (495), 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 21:04:22,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:04:22,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 21:04:22,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:04:22,234 INFO L130 PetriNetUnfolder]: 5/101 cut-off events. [2022-12-11 21:04:22,234 INFO L131 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2022-12-11 21:04:22,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 101 events. 5/101 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 168 event pairs, 0 based on Foata normal form. 3/104 useless extension candidates. Maximal degree in co-relation 127. Up to 16 conditions per place. [2022-12-11 21:04:22,236 INFO L137 encePairwiseOnDemand]: 78/86 looper letters, 10 selfloop transitions, 4 changer transitions 12/82 dead transitions. [2022-12-11 21:04:22,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 82 transitions, 270 flow [2022-12-11 21:04:22,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 21:04:22,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 21:04:22,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 718 transitions. [2022-12-11 21:04:22,240 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8348837209302326 [2022-12-11 21:04:22,241 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 10 predicate places. [2022-12-11 21:04:22,241 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 82 transitions, 270 flow [2022-12-11 21:04:22,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 70 transitions, 204 flow [2022-12-11 21:04:22,242 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 70 transitions, 204 flow [2022-12-11 21:04:22,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.71428571428571) internal successors, (495), 7 states have internal predecessors, (495), 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 21:04:22,243 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:04:22,243 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 21:04:22,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 21:04:22,244 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 21:04:22,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:04:22,265 INFO L85 PathProgramCache]: Analyzing trace with hash -183863765, now seen corresponding path program 1 times [2022-12-11 21:04:22,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:04:22,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135234310] [2022-12-11 21:04:22,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:04:22,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:04:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:04:22,510 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 21:04:22,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:04:22,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135234310] [2022-12-11 21:04:22,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135234310] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:04:22,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:04:22,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 21:04:22,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754561798] [2022-12-11 21:04:22,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:04:22,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 21:04:22,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:04:22,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 21:04:22,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 21:04:22,513 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 21:04:22,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 70 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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 21:04:22,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:04:22,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 21:04:22,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:04:22,665 INFO L130 PetriNetUnfolder]: 110/340 cut-off events. [2022-12-11 21:04:22,666 INFO L131 PetriNetUnfolder]: For 66/67 co-relation queries the response was YES. [2022-12-11 21:04:22,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 340 events. 110/340 cut-off events. For 66/67 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1593 event pairs, 2 based on Foata normal form. 8/344 useless extension candidates. Maximal degree in co-relation 622. Up to 96 conditions per place. [2022-12-11 21:04:22,671 INFO L137 encePairwiseOnDemand]: 77/86 looper letters, 17 selfloop transitions, 6 changer transitions 19/98 dead transitions. [2022-12-11 21:04:22,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 98 transitions, 365 flow [2022-12-11 21:04:22,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-11 21:04:22,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-11 21:04:22,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 663 transitions. [2022-12-11 21:04:22,673 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8565891472868217 [2022-12-11 21:04:22,674 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 12 predicate places. [2022-12-11 21:04:22,674 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 98 transitions, 365 flow [2022-12-11 21:04:22,676 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 79 transitions, 289 flow [2022-12-11 21:04:22,676 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 79 transitions, 289 flow [2022-12-11 21:04:22,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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 21:04:22,677 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:04:22,677 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] [2022-12-11 21:04:22,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 21:04:22,677 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 21:04:22,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:04:22,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1639961186, now seen corresponding path program 1 times [2022-12-11 21:04:22,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:04:22,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674089354] [2022-12-11 21:04:22,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:04:22,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:04:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:04:22,827 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 21:04:22,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:04:22,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674089354] [2022-12-11 21:04:22,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674089354] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:04:22,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:04:22,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:04:22,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456691247] [2022-12-11 21:04:22,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:04:22,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:04:22,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:04:22,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:04:22,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:04:22,833 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 21:04:22,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 79 transitions, 289 flow. Second operand has 7 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 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 21:04:22,834 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:04:22,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 21:04:22,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:04:22,938 INFO L130 PetriNetUnfolder]: 60/265 cut-off events. [2022-12-11 21:04:22,938 INFO L131 PetriNetUnfolder]: For 114/137 co-relation queries the response was YES. [2022-12-11 21:04:22,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 265 events. 60/265 cut-off events. For 114/137 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1067 event pairs, 0 based on Foata normal form. 20/285 useless extension candidates. Maximal degree in co-relation 572. Up to 100 conditions per place. [2022-12-11 21:04:22,940 INFO L137 encePairwiseOnDemand]: 77/86 looper letters, 20 selfloop transitions, 11 changer transitions 21/108 dead transitions. [2022-12-11 21:04:22,940 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 108 transitions, 516 flow [2022-12-11 21:04:22,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 21:04:22,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 21:04:22,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 736 transitions. [2022-12-11 21:04:22,942 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8558139534883721 [2022-12-11 21:04:22,943 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 17 predicate places. [2022-12-11 21:04:22,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 108 transitions, 516 flow [2022-12-11 21:04:22,945 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 87 transitions, 390 flow [2022-12-11 21:04:22,945 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 87 transitions, 390 flow [2022-12-11 21:04:22,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 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 21:04:22,945 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:04:22,945 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] [2022-12-11 21:04:22,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 21:04:22,946 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 21:04:22,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:04:22,946 INFO L85 PathProgramCache]: Analyzing trace with hash -212645277, now seen corresponding path program 1 times [2022-12-11 21:04:22,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:04:22,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785380218] [2022-12-11 21:04:22,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:04:22,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:04:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:04:23,111 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 21:04:23,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:04:23,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785380218] [2022-12-11 21:04:23,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785380218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:04:23,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:04:23,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 21:04:23,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627956823] [2022-12-11 21:04:23,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:04:23,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 21:04:23,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:04:23,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 21:04:23,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 21:04:23,115 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 21:04:23,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 87 transitions, 390 flow. Second operand has 8 states, 8 states have (on average 70.5) internal successors, (564), 8 states have internal predecessors, (564), 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 21:04:23,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:04:23,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 21:04:23,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:04:23,261 INFO L130 PetriNetUnfolder]: 24/155 cut-off events. [2022-12-11 21:04:23,261 INFO L131 PetriNetUnfolder]: For 168/206 co-relation queries the response was YES. [2022-12-11 21:04:23,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 155 events. 24/155 cut-off events. For 168/206 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 434 event pairs, 0 based on Foata normal form. 17/171 useless extension candidates. Maximal degree in co-relation 391. Up to 45 conditions per place. [2022-12-11 21:04:23,262 INFO L137 encePairwiseOnDemand]: 77/86 looper letters, 12 selfloop transitions, 12 changer transitions 20/100 dead transitions. [2022-12-11 21:04:23,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 100 transitions, 556 flow [2022-12-11 21:04:23,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 21:04:23,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 21:04:23,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 938 transitions. [2022-12-11 21:04:23,267 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8389982110912343 [2022-12-11 21:04:23,269 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 27 predicate places. [2022-12-11 21:04:23,270 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 100 transitions, 556 flow [2022-12-11 21:04:23,271 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 80 transitions, 396 flow [2022-12-11 21:04:23,272 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 80 transitions, 396 flow [2022-12-11 21:04:23,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 70.5) internal successors, (564), 8 states have internal predecessors, (564), 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 21:04:23,272 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:04:23,272 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, 1] [2022-12-11 21:04:23,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 21:04:23,273 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 21:04:23,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:04:23,273 INFO L85 PathProgramCache]: Analyzing trace with hash 479162333, now seen corresponding path program 1 times [2022-12-11 21:04:23,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:04:23,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918401828] [2022-12-11 21:04:23,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:04:23,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:04:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:04:23,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:04:23,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:04:23,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918401828] [2022-12-11 21:04:23,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918401828] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:04:23,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:04:23,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:04:23,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196518977] [2022-12-11 21:04:23,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:04:23,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:04:23,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:04:23,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:04:23,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:04:23,430 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 86 [2022-12-11 21:04:23,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 80 transitions, 396 flow. Second operand has 7 states, 7 states have (on average 70.85714285714286) internal successors, (496), 7 states have internal predecessors, (496), 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 21:04:23,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:04:23,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 86 [2022-12-11 21:04:23,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:04:23,506 INFO L130 PetriNetUnfolder]: 23/177 cut-off events. [2022-12-11 21:04:23,506 INFO L131 PetriNetUnfolder]: For 363/379 co-relation queries the response was YES. [2022-12-11 21:04:23,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 177 events. 23/177 cut-off events. For 363/379 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 554 event pairs, 0 based on Foata normal form. 4/180 useless extension candidates. Maximal degree in co-relation 419. Up to 37 conditions per place. [2022-12-11 21:04:23,507 INFO L137 encePairwiseOnDemand]: 80/86 looper letters, 16 selfloop transitions, 1 changer transitions 10/89 dead transitions. [2022-12-11 21:04:23,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 89 transitions, 536 flow [2022-12-11 21:04:23,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 21:04:23,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 21:04:23,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 504 transitions. [2022-12-11 21:04:23,509 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8372093023255814 [2022-12-11 21:04:23,511 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 25 predicate places. [2022-12-11 21:04:23,511 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 89 transitions, 536 flow [2022-12-11 21:04:23,512 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 79 transitions, 415 flow [2022-12-11 21:04:23,512 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 79 transitions, 415 flow [2022-12-11 21:04:23,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.85714285714286) internal successors, (496), 7 states have internal predecessors, (496), 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 21:04:23,512 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:04:23,512 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, 1] [2022-12-11 21:04:23,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 21:04:23,513 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 21:04:23,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:04:23,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1929911609, now seen corresponding path program 2 times [2022-12-11 21:04:23,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:04:23,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055393761] [2022-12-11 21:04:23,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:04:23,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:04:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:04:23,656 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 21:04:23,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:04:23,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055393761] [2022-12-11 21:04:23,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055393761] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:04:23,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:04:23,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:04:23,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335918628] [2022-12-11 21:04:23,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:04:23,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:04:23,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:04:23,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:04:23,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:04:23,658 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2022-12-11 21:04:23,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 79 transitions, 415 flow. Second operand has 7 states, 7 states have (on average 67.42857142857143) internal successors, (472), 7 states have internal predecessors, (472), 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 21:04:23,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:04:23,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2022-12-11 21:04:23,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:04:23,747 INFO L130 PetriNetUnfolder]: 22/185 cut-off events. [2022-12-11 21:04:23,747 INFO L131 PetriNetUnfolder]: For 472/477 co-relation queries the response was YES. [2022-12-11 21:04:23,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 185 events. 22/185 cut-off events. For 472/477 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 644 event pairs, 2 based on Foata normal form. 3/184 useless extension candidates. Maximal degree in co-relation 445. Up to 34 conditions per place. [2022-12-11 21:04:23,748 INFO L137 encePairwiseOnDemand]: 77/86 looper letters, 0 selfloop transitions, 0 changer transitions 82/82 dead transitions. [2022-12-11 21:04:23,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 82 transitions, 514 flow [2022-12-11 21:04:23,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 21:04:23,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 21:04:23,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 541 transitions. [2022-12-11 21:04:23,750 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7863372093023255 [2022-12-11 21:04:23,750 INFO L295 CegarLoopForPetriNet]: 80 programPoint places, 26 predicate places. [2022-12-11 21:04:23,750 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 82 transitions, 514 flow [2022-12-11 21:04:23,751 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 21:04:23,751 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 21:04:23,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.42857142857143) internal successors, (472), 7 states have internal predecessors, (472), 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 21:04:23,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 21:04:23,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 21:04:23,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 21:04:23,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 21:04:23,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 21:04:23,754 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-12-11 21:04:23,756 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 21:04:23,756 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 21:04:23,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 09:04:23 BasicIcfg [2022-12-11 21:04:23,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 21:04:23,762 INFO L158 Benchmark]: Toolchain (without parser) took 3706.01ms. Allocated memory was 204.5MB in the beginning and 245.4MB in the end (delta: 40.9MB). Free memory was 180.1MB in the beginning and 181.3MB in the end (delta: -1.2MB). Peak memory consumption was 40.3MB. Max. memory is 8.0GB. [2022-12-11 21:04:23,763 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 204.5MB. Free memory is still 182.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 21:04:23,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.28ms. Allocated memory is still 204.5MB. Free memory was 179.6MB in the beginning and 156.0MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-11 21:04:23,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.36ms. Allocated memory is still 204.5MB. Free memory was 156.0MB in the beginning and 154.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 21:04:23,766 INFO L158 Benchmark]: Boogie Preprocessor took 44.58ms. Allocated memory is still 204.5MB. Free memory was 154.0MB in the beginning and 152.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 21:04:23,766 INFO L158 Benchmark]: RCFGBuilder took 352.57ms. Allocated memory is still 204.5MB. Free memory was 152.9MB in the beginning and 139.3MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-11 21:04:23,768 INFO L158 Benchmark]: TraceAbstraction took 2858.77ms. Allocated memory was 204.5MB in the beginning and 245.4MB in the end (delta: 40.9MB). Free memory was 138.2MB in the beginning and 181.3MB in the end (delta: -43.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 21:04:23,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 204.5MB. Free memory is still 182.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 402.28ms. Allocated memory is still 204.5MB. Free memory was 179.6MB in the beginning and 156.0MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.36ms. Allocated memory is still 204.5MB. Free memory was 156.0MB in the beginning and 154.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.58ms. Allocated memory is still 204.5MB. Free memory was 154.0MB in the beginning and 152.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 352.57ms. Allocated memory is still 204.5MB. Free memory was 152.9MB in the beginning and 139.3MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2858.77ms. Allocated memory was 204.5MB in the beginning and 245.4MB in the end (delta: 40.9MB). Free memory was 138.2MB in the beginning and 181.3MB in the end (delta: -43.1MB). There was no memory consumed. 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, 109 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: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 200 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 213 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 166 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 379 IncrementalHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 47 mSDtfsCounter, 379 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=415occurred in iteration=6, InterpolantAutomatonStates: 66, 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, 1105 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 395 ConstructedInterpolants, 0 QuantifiedInterpolants, 1157 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 21:04:23,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...