/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-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 03:18:27,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 03:18:27,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 03:18:27,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 03:18:27,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 03:18:27,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 03:18:27,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 03:18:27,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 03:18:27,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 03:18:27,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 03:18:27,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 03:18:27,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 03:18:27,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 03:18:27,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 03:18:27,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 03:18:27,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 03:18:27,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 03:18:27,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 03:18:27,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 03:18:27,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 03:18:27,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 03:18:27,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 03:18:27,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 03:18:27,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 03:18:27,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 03:18:27,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 03:18:27,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 03:18:27,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 03:18:27,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 03:18:27,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 03:18:27,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 03:18:27,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 03:18:27,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 03:18:27,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 03:18:27,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 03:18:27,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 03:18:27,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 03:18:27,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 03:18:27,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 03:18:27,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 03:18:27,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 03:18:27,290 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-RepeatedSemanticLbe.epf [2022-12-13 03:18:27,318 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 03:18:27,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 03:18:27,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 03:18:27,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 03:18:27,320 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 03:18:27,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 03:18:27,321 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 03:18:27,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 03:18:27,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 03:18:27,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 03:18:27,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 03:18:27,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 03:18:27,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 03:18:27,322 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 03:18:27,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 03:18:27,322 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 03:18:27,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 03:18:27,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 03:18:27,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 03:18:27,323 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 03:18:27,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 03:18:27,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:18:27,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 03:18:27,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 03:18:27,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 03:18:27,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 03:18:27,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 03:18:27,332 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 03:18:27,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 03:18:27,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 03:18:27,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 03:18:27,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 03:18:27,639 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 03:18:27,639 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 03:18:27,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2022-12-13 03:18:28,706 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 03:18:28,977 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 03:18:28,978 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2022-12-13 03:18:28,995 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a97abc6c/8bd575dcee044739b5be01e0e72e935d/FLAG48179df5f [2022-12-13 03:18:29,011 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a97abc6c/8bd575dcee044739b5be01e0e72e935d [2022-12-13 03:18:29,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 03:18:29,014 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 03:18:29,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 03:18:29,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 03:18:29,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 03:18:29,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:18:29" (1/1) ... [2022-12-13 03:18:29,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447dad24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:29, skipping insertion in model container [2022-12-13 03:18:29,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:18:29" (1/1) ... [2022-12-13 03:18:29,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 03:18:29,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 03:18:29,187 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/safe033_tso.i[945,958] [2022-12-13 03:18:29,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:18:29,328 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 03:18:29,336 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i[945,958] [2022-12-13 03:18:29,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 03:18:29,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 03:18:29,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:18:29,397 INFO L208 MainTranslator]: Completed translation [2022-12-13 03:18:29,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:29 WrapperNode [2022-12-13 03:18:29,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 03:18:29,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 03:18:29,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 03:18:29,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 03:18:29,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:29" (1/1) ... [2022-12-13 03:18:29,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:29" (1/1) ... [2022-12-13 03:18:29,455 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-12-13 03:18:29,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 03:18:29,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 03:18:29,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 03:18:29,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 03:18:29,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:29" (1/1) ... [2022-12-13 03:18:29,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:29" (1/1) ... [2022-12-13 03:18:29,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:29" (1/1) ... [2022-12-13 03:18:29,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:29" (1/1) ... [2022-12-13 03:18:29,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:29" (1/1) ... [2022-12-13 03:18:29,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:29" (1/1) ... [2022-12-13 03:18:29,472 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:29" (1/1) ... [2022-12-13 03:18:29,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:29" (1/1) ... [2022-12-13 03:18:29,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 03:18:29,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 03:18:29,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 03:18:29,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 03:18:29,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:29" (1/1) ... [2022-12-13 03:18:29,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:18:29,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 03:18:29,494 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) [2022-12-13 03:18:29,501 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 [2022-12-13 03:18:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 03:18:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 03:18:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 03:18:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 03:18:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 03:18:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 03:18:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 03:18:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 03:18:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 03:18:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 03:18:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 03:18:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 03:18:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 03:18:29,520 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 03:18:29,596 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 03:18:29,597 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 03:18:29,695 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 03:18:29,699 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 03:18:29,699 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 03:18:29,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:18:29 BoogieIcfgContainer [2022-12-13 03:18:29,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 03:18:29,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 03:18:29,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 03:18:29,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 03:18:29,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:18:29" (1/3) ... [2022-12-13 03:18:29,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cac403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:18:29, skipping insertion in model container [2022-12-13 03:18:29,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:18:29" (2/3) ... [2022-12-13 03:18:29,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cac403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:18:29, skipping insertion in model container [2022-12-13 03:18:29,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:18:29" (3/3) ... [2022-12-13 03:18:29,706 INFO L112 eAbstractionObserver]: Analyzing ICFG safe033_tso.i [2022-12-13 03:18:29,718 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 03:18:29,718 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 03:18:29,718 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 03:18:29,777 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 03:18:29,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 67 transitions, 144 flow [2022-12-13 03:18:29,832 INFO L130 PetriNetUnfolder]: 2/65 cut-off events. [2022-12-13 03:18:29,832 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:18:29,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-12-13 03:18:29,835 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 67 transitions, 144 flow [2022-12-13 03:18:29,837 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 55 transitions, 116 flow [2022-12-13 03:18:29,838 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:18:29,849 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 55 transitions, 116 flow [2022-12-13 03:18:29,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 55 transitions, 116 flow [2022-12-13 03:18:29,864 INFO L130 PetriNetUnfolder]: 1/55 cut-off events. [2022-12-13 03:18:29,864 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:18:29,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 55 events. 1/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-12-13 03:18:29,866 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 55 transitions, 116 flow [2022-12-13 03:18:29,866 INFO L226 LiptonReduction]: Number of co-enabled transitions 540 [2022-12-13 03:18:31,030 INFO L241 LiptonReduction]: Total number of compositions: 43 [2022-12-13 03:18:31,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 03:18:31,069 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=REPEATED_LIPTON_PN, 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;@6d5d8882, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 03:18:31,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 03:18:31,077 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-13 03:18:31,077 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:18:31,077 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:18:31,078 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 03:18:31,078 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:18:31,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:18:31,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1684193920, now seen corresponding path program 1 times [2022-12-13 03:18:31,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:18:31,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222382895] [2022-12-13 03:18:31,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:18:31,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:18:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:18:31,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:18:31,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:18:31,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222382895] [2022-12-13 03:18:31,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222382895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:18:31,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:18:31,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 03:18:31,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283939886] [2022-12-13 03:18:31,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:18:31,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:18:31,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:18:31,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:18:31,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:18:31,434 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 19 [2022-12-13 03:18:31,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-12-13 03:18:31,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:18:31,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 19 [2022-12-13 03:18:31,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:18:31,479 INFO L130 PetriNetUnfolder]: 76/165 cut-off events. [2022-12-13 03:18:31,479 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 03:18:31,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 165 events. 76/165 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 681 event pairs, 34 based on Foata normal form. 2/138 useless extension candidates. Maximal degree in co-relation 312. Up to 136 conditions per place. [2022-12-13 03:18:31,481 INFO L137 encePairwiseOnDemand]: 14/19 looper letters, 16 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2022-12-13 03:18:31,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 95 flow [2022-12-13 03:18:31,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:18:31,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:18:31,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2022-12-13 03:18:31,489 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2022-12-13 03:18:31,492 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2022-12-13 03:18:31,492 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 24 transitions, 95 flow [2022-12-13 03:18:31,493 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 24 transitions, 95 flow [2022-12-13 03:18:31,494 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:18:31,495 INFO L89 Accepts]: Start accepts. Operand has 27 places, 24 transitions, 95 flow [2022-12-13 03:18:31,497 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:18:31,497 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:18:31,497 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 24 transitions, 95 flow [2022-12-13 03:18:31,503 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 24 transitions, 95 flow [2022-12-13 03:18:31,503 INFO L226 LiptonReduction]: Number of co-enabled transitions 84 [2022-12-13 03:18:31,518 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:18:31,521 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 27 [2022-12-13 03:18:31,521 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 95 flow [2022-12-13 03:18:31,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-12-13 03:18:31,521 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:18:31,521 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:18:31,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 03:18:31,524 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:18:31,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:18:31,525 INFO L85 PathProgramCache]: Analyzing trace with hash -670404646, now seen corresponding path program 1 times [2022-12-13 03:18:31,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:18:31,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709056610] [2022-12-13 03:18:31,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:18:31,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:18:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:18:31,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:18:31,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:18:31,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709056610] [2022-12-13 03:18:31,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709056610] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:18:31,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:18:31,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:18:31,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242779071] [2022-12-13 03:18:31,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:18:31,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:18:31,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:18:31,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:18:31,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:18:31,645 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 18 [2022-12-13 03:18:31,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2022-12-13 03:18:31,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:18:31,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 18 [2022-12-13 03:18:31,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:18:31,737 INFO L130 PetriNetUnfolder]: 105/228 cut-off events. [2022-12-13 03:18:31,737 INFO L131 PetriNetUnfolder]: For 49/51 co-relation queries the response was YES. [2022-12-13 03:18:31,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 228 events. 105/228 cut-off events. For 49/51 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1085 event pairs, 29 based on Foata normal form. 27/218 useless extension candidates. Maximal degree in co-relation 628. Up to 181 conditions per place. [2022-12-13 03:18:31,740 INFO L137 encePairwiseOnDemand]: 9/18 looper letters, 21 selfloop transitions, 7 changer transitions 20/53 dead transitions. [2022-12-13 03:18:31,740 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 53 transitions, 298 flow [2022-12-13 03:18:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 03:18:31,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 03:18:31,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 63 transitions. [2022-12-13 03:18:31,742 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7 [2022-12-13 03:18:31,743 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 6 predicate places. [2022-12-13 03:18:31,743 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 53 transitions, 298 flow [2022-12-13 03:18:31,744 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 33 transitions, 186 flow [2022-12-13 03:18:31,746 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:18:31,746 INFO L89 Accepts]: Start accepts. Operand has 29 places, 33 transitions, 186 flow [2022-12-13 03:18:31,747 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:18:31,747 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:18:31,747 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 33 transitions, 186 flow [2022-12-13 03:18:31,749 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 33 transitions, 186 flow [2022-12-13 03:18:31,749 INFO L226 LiptonReduction]: Number of co-enabled transitions 54 [2022-12-13 03:18:31,751 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:18:31,752 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 6 [2022-12-13 03:18:31,752 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 33 transitions, 186 flow [2022-12-13 03:18:31,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2022-12-13 03:18:31,753 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:18:31,753 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:18:31,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 03:18:31,753 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:18:31,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:18:31,754 INFO L85 PathProgramCache]: Analyzing trace with hash -43896357, now seen corresponding path program 1 times [2022-12-13 03:18:31,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:18:31,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034601959] [2022-12-13 03:18:31,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:18:31,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:18:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:18:31,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:18:31,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:18:31,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034601959] [2022-12-13 03:18:31,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034601959] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:18:31,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:18:31,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:18:31,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34441460] [2022-12-13 03:18:31,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:18:31,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 03:18:31,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:18:31,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 03:18:31,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 03:18:31,898 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 18 [2022-12-13 03:18:31,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 33 transitions, 186 flow. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-12-13 03:18:31,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:18:31,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 18 [2022-12-13 03:18:31,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:18:31,972 INFO L130 PetriNetUnfolder]: 45/133 cut-off events. [2022-12-13 03:18:31,972 INFO L131 PetriNetUnfolder]: For 63/64 co-relation queries the response was YES. [2022-12-13 03:18:31,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 133 events. 45/133 cut-off events. For 63/64 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 596 event pairs, 5 based on Foata normal form. 24/137 useless extension candidates. Maximal degree in co-relation 484. Up to 108 conditions per place. [2022-12-13 03:18:31,975 INFO L137 encePairwiseOnDemand]: 9/18 looper letters, 15 selfloop transitions, 13 changer transitions 11/42 dead transitions. [2022-12-13 03:18:31,975 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 42 transitions, 310 flow [2022-12-13 03:18:31,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 03:18:31,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 03:18:31,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 59 transitions. [2022-12-13 03:18:31,977 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5462962962962963 [2022-12-13 03:18:31,979 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 9 predicate places. [2022-12-13 03:18:31,979 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 42 transitions, 310 flow [2022-12-13 03:18:31,980 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 31 transitions, 238 flow [2022-12-13 03:18:31,981 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:18:31,981 INFO L89 Accepts]: Start accepts. Operand has 30 places, 31 transitions, 238 flow [2022-12-13 03:18:31,982 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:18:31,982 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:18:31,983 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 31 transitions, 238 flow [2022-12-13 03:18:31,984 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 31 transitions, 238 flow [2022-12-13 03:18:31,984 INFO L226 LiptonReduction]: Number of co-enabled transitions 16 [2022-12-13 03:18:32,085 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 03:18:32,100 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 119 [2022-12-13 03:18:32,100 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 30 transitions, 230 flow [2022-12-13 03:18:32,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-12-13 03:18:32,100 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:18:32,100 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:18:32,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 03:18:32,103 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:18:32,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:18:32,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1531563615, now seen corresponding path program 1 times [2022-12-13 03:18:32,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:18:32,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002233948] [2022-12-13 03:18:32,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:18:32,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:18:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:18:32,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:18:32,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:18:32,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002233948] [2022-12-13 03:18:32,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002233948] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:18:32,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:18:32,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 03:18:32,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603066326] [2022-12-13 03:18:32,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:18:32,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 03:18:32,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:18:32,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 03:18:32,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 03:18:32,227 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 15 [2022-12-13 03:18:32,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 30 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-13 03:18:32,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:18:32,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 15 [2022-12-13 03:18:32,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:18:32,258 INFO L130 PetriNetUnfolder]: 43/119 cut-off events. [2022-12-13 03:18:32,258 INFO L131 PetriNetUnfolder]: For 125/127 co-relation queries the response was YES. [2022-12-13 03:18:32,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 119 events. 43/119 cut-off events. For 125/127 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 477 event pairs, 0 based on Foata normal form. 11/107 useless extension candidates. Maximal degree in co-relation 515. Up to 89 conditions per place. [2022-12-13 03:18:32,259 INFO L137 encePairwiseOnDemand]: 10/15 looper letters, 20 selfloop transitions, 6 changer transitions 9/39 dead transitions. [2022-12-13 03:18:32,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 39 transitions, 366 flow [2022-12-13 03:18:32,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 03:18:32,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 03:18:32,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2022-12-13 03:18:32,261 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2022-12-13 03:18:32,262 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 6 predicate places. [2022-12-13 03:18:32,262 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 39 transitions, 366 flow [2022-12-13 03:18:32,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 30 transitions, 273 flow [2022-12-13 03:18:32,264 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:18:32,264 INFO L89 Accepts]: Start accepts. Operand has 31 places, 30 transitions, 273 flow [2022-12-13 03:18:32,265 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:18:32,265 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:18:32,266 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 30 transitions, 273 flow [2022-12-13 03:18:32,267 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 30 transitions, 273 flow [2022-12-13 03:18:32,267 INFO L226 LiptonReduction]: Number of co-enabled transitions 6 [2022-12-13 03:18:32,267 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:18:32,271 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7 [2022-12-13 03:18:32,271 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 30 transitions, 273 flow [2022-12-13 03:18:32,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-13 03:18:32,271 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:18:32,271 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:18:32,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 03:18:32,272 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:18:32,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:18:32,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1536593489, now seen corresponding path program 1 times [2022-12-13 03:18:32,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:18:32,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332305780] [2022-12-13 03:18:32,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:18:32,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:18:32,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:18:32,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:18:32,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:18:32,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332305780] [2022-12-13 03:18:32,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332305780] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:18:32,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:18:32,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:18:32,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268460790] [2022-12-13 03:18:32,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:18:32,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:18:32,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:18:32,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:18:32,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:18:32,359 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 15 [2022-12-13 03:18:32,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 30 transitions, 273 flow. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-12-13 03:18:32,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:18:32,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 15 [2022-12-13 03:18:32,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:18:32,393 INFO L130 PetriNetUnfolder]: 32/119 cut-off events. [2022-12-13 03:18:32,396 INFO L131 PetriNetUnfolder]: For 138/142 co-relation queries the response was YES. [2022-12-13 03:18:32,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 119 events. 32/119 cut-off events. For 138/142 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 556 event pairs, 2 based on Foata normal form. 10/105 useless extension candidates. Maximal degree in co-relation 584. Up to 89 conditions per place. [2022-12-13 03:18:32,397 INFO L137 encePairwiseOnDemand]: 11/15 looper letters, 16 selfloop transitions, 4 changer transitions 14/38 dead transitions. [2022-12-13 03:18:32,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 38 transitions, 421 flow [2022-12-13 03:18:32,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:18:32,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:18:32,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2022-12-13 03:18:32,398 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2022-12-13 03:18:32,400 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 9 predicate places. [2022-12-13 03:18:32,400 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 38 transitions, 421 flow [2022-12-13 03:18:32,401 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 24 transitions, 260 flow [2022-12-13 03:18:32,403 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 03:18:32,403 INFO L89 Accepts]: Start accepts. Operand has 34 places, 24 transitions, 260 flow [2022-12-13 03:18:32,404 INFO L95 Accepts]: Finished accepts. [2022-12-13 03:18:32,404 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:18:32,404 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 24 transitions, 260 flow [2022-12-13 03:18:32,405 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 24 transitions, 260 flow [2022-12-13 03:18:32,405 INFO L226 LiptonReduction]: Number of co-enabled transitions 2 [2022-12-13 03:18:32,514 INFO L241 LiptonReduction]: Total number of compositions: 3 [2022-12-13 03:18:32,516 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 113 [2022-12-13 03:18:32,516 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 252 flow [2022-12-13 03:18:32,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-12-13 03:18:32,516 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:18:32,516 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 03:18:32,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 03:18:32,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 03:18:32,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:18:32,517 INFO L85 PathProgramCache]: Analyzing trace with hash -55929777, now seen corresponding path program 1 times [2022-12-13 03:18:32,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:18:32,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109470969] [2022-12-13 03:18:32,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:18:32,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:18:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 03:18:32,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 03:18:32,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 03:18:32,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109470969] [2022-12-13 03:18:32,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109470969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 03:18:32,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 03:18:32,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 03:18:32,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532916424] [2022-12-13 03:18:32,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 03:18:32,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 03:18:32,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 03:18:32,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 03:18:32,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 03:18:32,655 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-13 03:18:32,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-12-13 03:18:32,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 03:18:32,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-13 03:18:32,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 03:18:32,689 INFO L130 PetriNetUnfolder]: 16/44 cut-off events. [2022-12-13 03:18:32,690 INFO L131 PetriNetUnfolder]: For 67/68 co-relation queries the response was YES. [2022-12-13 03:18:32,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 44 events. 16/44 cut-off events. For 67/68 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 124 event pairs, 0 based on Foata normal form. 10/42 useless extension candidates. Maximal degree in co-relation 247. Up to 36 conditions per place. [2022-12-13 03:18:32,690 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2022-12-13 03:18:32,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 24 transitions, 304 flow [2022-12-13 03:18:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 03:18:32,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 03:18:32,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2022-12-13 03:18:32,692 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.36764705882352944 [2022-12-13 03:18:32,693 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 10 predicate places. [2022-12-13 03:18:32,694 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 24 transitions, 304 flow [2022-12-13 03:18:32,694 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-13 03:18:32,694 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:18:32,694 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 03:18:32,694 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 03:18:32,694 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 03:18:32,695 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 03:18:32,695 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1 [2022-12-13 03:18:32,695 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 03:18:32,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-12-13 03:18:32,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 03:18:32,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 03:18:32,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 03:18:32,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 03:18:32,700 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-13 03:18:32,708 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 03:18:32,709 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 03:18:32,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:18:32 BasicIcfg [2022-12-13 03:18:32,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 03:18:32,713 INFO L158 Benchmark]: Toolchain (without parser) took 3698.73ms. Allocated memory was 194.0MB in the beginning and 232.8MB in the end (delta: 38.8MB). Free memory was 168.3MB in the beginning and 175.6MB in the end (delta: -7.2MB). Peak memory consumption was 32.1MB. Max. memory is 8.0GB. [2022-12-13 03:18:32,713 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 194.0MB. Free memory was 171.7MB in the beginning and 171.7MB in the end (delta: 67.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 03:18:32,713 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.50ms. Allocated memory is still 194.0MB. Free memory was 168.3MB in the beginning and 146.3MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-13 03:18:32,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.38ms. Allocated memory is still 194.0MB. Free memory was 145.8MB in the beginning and 144.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 03:18:32,713 INFO L158 Benchmark]: Boogie Preprocessor took 16.95ms. Allocated memory is still 194.0MB. Free memory was 144.2MB in the beginning and 142.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 03:18:32,714 INFO L158 Benchmark]: RCFGBuilder took 226.85ms. Allocated memory is still 194.0MB. Free memory was 142.7MB in the beginning and 130.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-13 03:18:32,714 INFO L158 Benchmark]: TraceAbstraction took 3009.38ms. Allocated memory was 194.0MB in the beginning and 232.8MB in the end (delta: 38.8MB). Free memory was 128.5MB in the beginning and 175.6MB in the end (delta: -47.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 03:18:32,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 194.0MB. Free memory was 171.7MB in the beginning and 171.7MB in the end (delta: 67.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 382.50ms. Allocated memory is still 194.0MB. Free memory was 168.3MB in the beginning and 146.3MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.38ms. Allocated memory is still 194.0MB. Free memory was 145.8MB in the beginning and 144.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.95ms. Allocated memory is still 194.0MB. Free memory was 144.2MB in the beginning and 142.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 226.85ms. Allocated memory is still 194.0MB. Free memory was 142.7MB in the beginning and 130.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3009.38ms. Allocated memory was 194.0MB in the beginning and 232.8MB in the end (delta: 38.8MB). Free memory was 128.5MB in the beginning and 175.6MB in the end (delta: -47.1MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 61 PlacesBefore, 25 PlacesAfterwards, 55 TransitionsBefore, 19 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 24 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 520, independent: 481, independent conditional: 481, independent unconditional: 0, dependent: 39, dependent conditional: 39, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 520, independent: 481, independent conditional: 0, independent unconditional: 481, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 520, independent: 481, independent conditional: 0, independent unconditional: 481, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 520, independent: 481, independent conditional: 0, independent unconditional: 481, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 416, independent: 393, independent conditional: 0, independent unconditional: 393, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 416, independent: 388, independent conditional: 0, independent unconditional: 388, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 49, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 520, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 416, unknown conditional: 0, unknown unconditional: 416] , Statistics on independence cache: Total cache size (in pairs): 581, Positive cache size: 558, Positive conditional cache size: 0, Positive unconditional cache size: 558, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 27 PlacesBefore, 27 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, independent: 11, independent conditional: 11, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 18, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 29 PlacesBefore, 29 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 54 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 72, independent: 64, independent conditional: 64, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 72, independent: 64, independent conditional: 40, independent unconditional: 24, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 72, independent: 64, independent conditional: 24, independent unconditional: 40, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 72, independent: 64, independent conditional: 24, independent unconditional: 40, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, independent: 12, independent conditional: 6, independent unconditional: 6, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 72, independent: 52, independent conditional: 18, independent unconditional: 34, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 12, unknown conditional: 6, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 19, Positive conditional cache size: 6, Positive unconditional cache size: 13, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 16, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 30 PlacesBefore, 29 PlacesAfterwards, 31 TransitionsBefore, 30 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 112, independent: 96, independent conditional: 96, independent unconditional: 0, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 112, independent: 96, independent conditional: 80, independent unconditional: 16, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 128, independent: 96, independent conditional: 48, independent unconditional: 48, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 128, independent: 96, independent conditional: 48, independent unconditional: 48, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 128, independent: 96, independent conditional: 48, independent unconditional: 48, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 19, Positive conditional cache size: 6, Positive unconditional cache size: 13, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 64, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 31 PlacesBefore, 31 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 6 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 19, Positive conditional cache size: 6, Positive unconditional cache size: 13, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 34 PlacesBefore, 33 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 19, Positive conditional cache size: 6, Positive unconditional cache size: 13, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 19, Positive conditional cache size: 6, Positive unconditional cache size: 13, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - 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 5 procedures, 82 locations, 3 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: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 233 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 7 mSDtfsCounter, 233 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 03:18:32,761 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...