./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 14:27:46,294 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 14:27:46,361 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 14:27:46,367 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 14:27:46,368 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 14:27:46,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 14:27:46,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 14:27:46,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 14:27:46,406 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 14:27:46,408 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 14:27:46,408 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 14:27:46,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 14:27:46,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 14:27:46,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 14:27:46,411 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 14:27:46,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 14:27:46,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 14:27:46,412 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 14:27:46,412 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 14:27:46,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 14:27:46,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 14:27:46,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 14:27:46,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 14:27:46,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 14:27:46,416 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 14:27:46,416 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 14:27:46,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 14:27:46,417 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 14:27:46,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 14:27:46,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 14:27:46,418 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 14:27:46,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 14:27:46,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:27:46,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 14:27:46,419 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 14:27:46,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 14:27:46,420 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 14:27:46,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 14:27:46,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 14:27:46,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 14:27:46,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 14:27:46,421 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 14:27:46,421 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f [2024-10-14 14:27:46,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 14:27:46,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 14:27:46,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 14:27:46,780 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 14:27:46,780 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 14:27:46,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-14 14:27:48,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 14:27:48,465 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 14:27:48,466 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-14 14:27:48,480 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51cf7d230/8be907f93433449a82ec890efb7f83dd/FLAGd29d7513f [2024-10-14 14:27:48,754 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51cf7d230/8be907f93433449a82ec890efb7f83dd [2024-10-14 14:27:48,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 14:27:48,759 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 14:27:48,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 14:27:48,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 14:27:48,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 14:27:48,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:27:48" (1/1) ... [2024-10-14 14:27:48,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25521972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:48, skipping insertion in model container [2024-10-14 14:27:48,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:27:48" (1/1) ... [2024-10-14 14:27:48,821 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 14:27:48,989 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-10-14 14:27:49,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:27:49,160 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 14:27:49,176 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-10-14 14:27:49,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:27:49,272 INFO L204 MainTranslator]: Completed translation [2024-10-14 14:27:49,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:49 WrapperNode [2024-10-14 14:27:49,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 14:27:49,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 14:27:49,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 14:27:49,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 14:27:49,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:49" (1/1) ... [2024-10-14 14:27:49,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:49" (1/1) ... [2024-10-14 14:27:49,327 INFO L138 Inliner]: procedures = 176, calls = 50, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-10-14 14:27:49,328 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 14:27:49,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 14:27:49,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 14:27:49,329 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 14:27:49,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:49" (1/1) ... [2024-10-14 14:27:49,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:49" (1/1) ... [2024-10-14 14:27:49,342 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:49" (1/1) ... [2024-10-14 14:27:49,367 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 14:27:49,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:49" (1/1) ... [2024-10-14 14:27:49,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:49" (1/1) ... [2024-10-14 14:27:49,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:49" (1/1) ... [2024-10-14 14:27:49,384 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:49" (1/1) ... [2024-10-14 14:27:49,385 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:49" (1/1) ... [2024-10-14 14:27:49,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:49" (1/1) ... [2024-10-14 14:27:49,392 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 14:27:49,393 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 14:27:49,397 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 14:27:49,397 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 14:27:49,398 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:49" (1/1) ... [2024-10-14 14:27:49,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:27:49,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:27:49,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 14:27:49,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 14:27:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 14:27:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 14:27:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-14 14:27:49,467 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-14 14:27:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-14 14:27:49,467 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-14 14:27:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-14 14:27:49,467 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-14 14:27:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-14 14:27:49,468 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-14 14:27:49,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 14:27:49,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 14:27:49,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 14:27:49,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 14:27:49,469 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 14:27:49,646 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 14:27:49,649 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 14:27:49,810 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 14:27:49,811 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 14:27:49,902 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 14:27:49,903 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 14:27:49,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:27:49 BoogieIcfgContainer [2024-10-14 14:27:49,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 14:27:49,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 14:27:49,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 14:27:49,908 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 14:27:49,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:27:48" (1/3) ... [2024-10-14 14:27:49,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604fdda0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:27:49, skipping insertion in model container [2024-10-14 14:27:49,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:49" (2/3) ... [2024-10-14 14:27:49,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604fdda0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:27:49, skipping insertion in model container [2024-10-14 14:27:49,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:27:49" (3/3) ... [2024-10-14 14:27:49,911 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-14 14:27:49,926 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 14:27:49,927 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 14:27:49,927 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 14:27:49,985 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 14:27:50,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 47 transitions, 110 flow [2024-10-14 14:27:50,050 INFO L124 PetriNetUnfolderBase]: 1/43 cut-off events. [2024-10-14 14:27:50,051 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 14:27:50,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 43 events. 1/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2024-10-14 14:27:50,055 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 47 transitions, 110 flow [2024-10-14 14:27:50,061 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 40 transitions, 92 flow [2024-10-14 14:27:50,069 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 14:27:50,080 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@22eb67f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 14:27:50,080 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-14 14:27:50,093 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 14:27:50,094 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2024-10-14 14:27:50,094 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 14:27:50,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:27:50,095 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:27:50,095 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 14:27:50,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:27:50,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1929637479, now seen corresponding path program 1 times [2024-10-14 14:27:50,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:27:50,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043851378] [2024-10-14 14:27:50,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:27:50,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:27:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:27:50,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:27:50,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:27:50,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043851378] [2024-10-14 14:27:50,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043851378] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:27:50,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:27:50,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 14:27:50,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845265288] [2024-10-14 14:27:50,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:27:50,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 14:27:50,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:27:50,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 14:27:50,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 14:27:50,800 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 47 [2024-10-14 14:27:50,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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) [2024-10-14 14:27:50,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:27:50,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 47 [2024-10-14 14:27:50,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:27:51,381 INFO L124 PetriNetUnfolderBase]: 1692/3102 cut-off events. [2024-10-14 14:27:51,381 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-10-14 14:27:51,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5604 conditions, 3102 events. 1692/3102 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 21915 event pairs, 970 based on Foata normal form. 81/3043 useless extension candidates. Maximal degree in co-relation 5592. Up to 1893 conditions per place. [2024-10-14 14:27:51,410 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 28 selfloop transitions, 5 changer transitions 27/79 dead transitions. [2024-10-14 14:27:51,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 79 transitions, 299 flow [2024-10-14 14:27:51,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:27:51,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 14:27:51,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 223 transitions. [2024-10-14 14:27:51,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6778115501519757 [2024-10-14 14:27:51,429 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 92 flow. Second operand 7 states and 223 transitions. [2024-10-14 14:27:51,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 79 transitions, 299 flow [2024-10-14 14:27:51,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 79 transitions, 292 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 14:27:51,437 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 145 flow [2024-10-14 14:27:51,439 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=145, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2024-10-14 14:27:51,444 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 7 predicate places. [2024-10-14 14:27:51,444 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 145 flow [2024-10-14 14:27:51,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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) [2024-10-14 14:27:51,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:27:51,446 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:27:51,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 14:27:51,446 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 14:27:51,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:27:51,448 INFO L85 PathProgramCache]: Analyzing trace with hash -320434648, now seen corresponding path program 1 times [2024-10-14 14:27:51,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:27:51,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529738856] [2024-10-14 14:27:51,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:27:51,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:27:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:27:51,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:27:51,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:27:51,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529738856] [2024-10-14 14:27:51,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529738856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:27:51,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:27:51,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 14:27:51,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058228459] [2024-10-14 14:27:51,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:27:51,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 14:27:51,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:27:51,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 14:27:51,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 14:27:51,664 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 47 [2024-10-14 14:27:51,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 145 flow. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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) [2024-10-14 14:27:51,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:27:51,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 47 [2024-10-14 14:27:51,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:27:51,999 INFO L124 PetriNetUnfolderBase]: 1072/2138 cut-off events. [2024-10-14 14:27:51,999 INFO L125 PetriNetUnfolderBase]: For 1840/2012 co-relation queries the response was YES. [2024-10-14 14:27:52,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5372 conditions, 2138 events. 1072/2138 cut-off events. For 1840/2012 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 16093 event pairs, 394 based on Foata normal form. 78/2004 useless extension candidates. Maximal degree in co-relation 5357. Up to 712 conditions per place. [2024-10-14 14:27:52,017 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 21 selfloop transitions, 3 changer transitions 19/68 dead transitions. [2024-10-14 14:27:52,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 68 transitions, 301 flow [2024-10-14 14:27:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:27:52,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 14:27:52,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 226 transitions. [2024-10-14 14:27:52,021 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6869300911854104 [2024-10-14 14:27:52,021 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 145 flow. Second operand 7 states and 226 transitions. [2024-10-14 14:27:52,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 68 transitions, 301 flow [2024-10-14 14:27:52,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 68 transitions, 288 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-10-14 14:27:52,037 INFO L231 Difference]: Finished difference. Result has 64 places, 44 transitions, 155 flow [2024-10-14 14:27:52,037 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=155, PETRI_PLACES=64, PETRI_TRANSITIONS=44} [2024-10-14 14:27:52,038 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2024-10-14 14:27:52,038 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 44 transitions, 155 flow [2024-10-14 14:27:52,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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) [2024-10-14 14:27:52,039 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:27:52,039 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:27:52,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 14:27:52,039 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 14:27:52,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:27:52,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1195022016, now seen corresponding path program 1 times [2024-10-14 14:27:52,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:27:52,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166794340] [2024-10-14 14:27:52,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:27:52,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:27:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:27:52,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:27:52,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:27:52,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166794340] [2024-10-14 14:27:52,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166794340] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:27:52,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:27:52,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 14:27:52,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334208702] [2024-10-14 14:27:52,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:27:52,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:27:52,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:27:52,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:27:52,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 14:27:52,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 47 [2024-10-14 14:27:52,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 44 transitions, 155 flow. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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) [2024-10-14 14:27:52,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:27:52,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 47 [2024-10-14 14:27:52,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:27:52,678 INFO L124 PetriNetUnfolderBase]: 1332/2589 cut-off events. [2024-10-14 14:27:52,679 INFO L125 PetriNetUnfolderBase]: For 2753/2964 co-relation queries the response was YES. [2024-10-14 14:27:52,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6493 conditions, 2589 events. 1332/2589 cut-off events. For 2753/2964 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 19688 event pairs, 420 based on Foata normal form. 75/2431 useless extension candidates. Maximal degree in co-relation 6474. Up to 539 conditions per place. [2024-10-14 14:27:52,700 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 27 selfloop transitions, 3 changer transitions 24/78 dead transitions. [2024-10-14 14:27:52,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 78 transitions, 362 flow [2024-10-14 14:27:52,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 14:27:52,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 14:27:52,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 255 transitions. [2024-10-14 14:27:52,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6781914893617021 [2024-10-14 14:27:52,703 INFO L175 Difference]: Start difference. First operand has 64 places, 44 transitions, 155 flow. Second operand 8 states and 255 transitions. [2024-10-14 14:27:52,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 78 transitions, 362 flow [2024-10-14 14:27:52,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 78 transitions, 338 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-10-14 14:27:52,716 INFO L231 Difference]: Finished difference. Result has 67 places, 43 transitions, 158 flow [2024-10-14 14:27:52,716 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=158, PETRI_PLACES=67, PETRI_TRANSITIONS=43} [2024-10-14 14:27:52,717 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 14 predicate places. [2024-10-14 14:27:52,717 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 43 transitions, 158 flow [2024-10-14 14:27:52,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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) [2024-10-14 14:27:52,718 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:27:52,718 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:27:52,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 14:27:52,718 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 14:27:52,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:27:52,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1848019215, now seen corresponding path program 1 times [2024-10-14 14:27:52,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:27:52,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206540202] [2024-10-14 14:27:52,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:27:52,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:27:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:27:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:27:52,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:27:52,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206540202] [2024-10-14 14:27:52,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206540202] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:27:52,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:27:52,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 14:27:52,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68662291] [2024-10-14 14:27:52,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:27:52,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 14:27:52,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:27:52,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 14:27:52,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 14:27:52,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 47 [2024-10-14 14:27:52,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 43 transitions, 158 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2024-10-14 14:27:52,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:27:52,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 47 [2024-10-14 14:27:52,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:27:53,270 INFO L124 PetriNetUnfolderBase]: 1394/2614 cut-off events. [2024-10-14 14:27:53,270 INFO L125 PetriNetUnfolderBase]: For 3930/3930 co-relation queries the response was YES. [2024-10-14 14:27:53,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7227 conditions, 2614 events. 1394/2614 cut-off events. For 3930/3930 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 18701 event pairs, 369 based on Foata normal form. 48/2556 useless extension candidates. Maximal degree in co-relation 7206. Up to 647 conditions per place. [2024-10-14 14:27:53,288 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 36 selfloop transitions, 3 changer transitions 34/91 dead transitions. [2024-10-14 14:27:53,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 91 transitions, 508 flow [2024-10-14 14:27:53,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 14:27:53,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 14:27:53,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 248 transitions. [2024-10-14 14:27:53,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2024-10-14 14:27:53,290 INFO L175 Difference]: Start difference. First operand has 67 places, 43 transitions, 158 flow. Second operand 8 states and 248 transitions. [2024-10-14 14:27:53,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 91 transitions, 508 flow [2024-10-14 14:27:53,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 91 transitions, 468 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-10-14 14:27:53,301 INFO L231 Difference]: Finished difference. Result has 68 places, 42 transitions, 156 flow [2024-10-14 14:27:53,302 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=156, PETRI_PLACES=68, PETRI_TRANSITIONS=42} [2024-10-14 14:27:53,302 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 15 predicate places. [2024-10-14 14:27:53,303 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 42 transitions, 156 flow [2024-10-14 14:27:53,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2024-10-14 14:27:53,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:27:53,304 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:27:53,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 14:27:53,304 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 14:27:53,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:27:53,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1390466308, now seen corresponding path program 1 times [2024-10-14 14:27:53,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:27:53,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053406279] [2024-10-14 14:27:53,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:27:53,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:27:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:27:53,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:27:53,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:27:53,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053406279] [2024-10-14 14:27:53,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053406279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:27:53,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:27:53,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 14:27:53,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553764869] [2024-10-14 14:27:53,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:27:53,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:27:53,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:27:53,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:27:53,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 14:27:53,486 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 47 [2024-10-14 14:27:53,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 42 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 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) [2024-10-14 14:27:53,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:27:53,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 47 [2024-10-14 14:27:53,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:27:53,713 INFO L124 PetriNetUnfolderBase]: 550/1152 cut-off events. [2024-10-14 14:27:53,713 INFO L125 PetriNetUnfolderBase]: For 1559/1559 co-relation queries the response was YES. [2024-10-14 14:27:53,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2973 conditions, 1152 events. 550/1152 cut-off events. For 1559/1559 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 7197 event pairs, 300 based on Foata normal form. 24/1111 useless extension candidates. Maximal degree in co-relation 2952. Up to 567 conditions per place. [2024-10-14 14:27:53,722 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 33 selfloop transitions, 3 changer transitions 19/74 dead transitions. [2024-10-14 14:27:53,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 74 transitions, 385 flow [2024-10-14 14:27:53,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:27:53,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 14:27:53,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 217 transitions. [2024-10-14 14:27:53,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2024-10-14 14:27:53,724 INFO L175 Difference]: Start difference. First operand has 68 places, 42 transitions, 156 flow. Second operand 7 states and 217 transitions. [2024-10-14 14:27:53,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 74 transitions, 385 flow [2024-10-14 14:27:53,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 74 transitions, 347 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-10-14 14:27:53,728 INFO L231 Difference]: Finished difference. Result has 67 places, 42 transitions, 151 flow [2024-10-14 14:27:53,728 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=151, PETRI_PLACES=67, PETRI_TRANSITIONS=42} [2024-10-14 14:27:53,731 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 14 predicate places. [2024-10-14 14:27:53,731 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 42 transitions, 151 flow [2024-10-14 14:27:53,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 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) [2024-10-14 14:27:53,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:27:53,732 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:27:53,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 14:27:53,734 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 14:27:53,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:27:53,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1591661851, now seen corresponding path program 1 times [2024-10-14 14:27:53,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:27:53,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242090212] [2024-10-14 14:27:53,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:27:53,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:27:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:27:53,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:27:53,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:27:53,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242090212] [2024-10-14 14:27:53,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242090212] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:27:53,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:27:53,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 14:27:53,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398809323] [2024-10-14 14:27:53,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:27:53,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:27:53,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:27:53,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:27:53,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 14:27:53,904 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 47 [2024-10-14 14:27:53,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 42 transitions, 151 flow. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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) [2024-10-14 14:27:53,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:27:53,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 47 [2024-10-14 14:27:53,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:27:54,153 INFO L124 PetriNetUnfolderBase]: 674/1283 cut-off events. [2024-10-14 14:27:54,154 INFO L125 PetriNetUnfolderBase]: For 1256/1290 co-relation queries the response was YES. [2024-10-14 14:27:54,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3153 conditions, 1283 events. 674/1283 cut-off events. For 1256/1290 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 8073 event pairs, 204 based on Foata normal form. 24/1215 useless extension candidates. Maximal degree in co-relation 3133. Up to 319 conditions per place. [2024-10-14 14:27:54,162 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 25 selfloop transitions, 3 changer transitions 25/74 dead transitions. [2024-10-14 14:27:54,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 74 transitions, 352 flow [2024-10-14 14:27:54,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 14:27:54,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 14:27:54,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 253 transitions. [2024-10-14 14:27:54,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6728723404255319 [2024-10-14 14:27:54,164 INFO L175 Difference]: Start difference. First operand has 67 places, 42 transitions, 151 flow. Second operand 8 states and 253 transitions. [2024-10-14 14:27:54,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 74 transitions, 352 flow [2024-10-14 14:27:54,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 74 transitions, 320 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-10-14 14:27:54,170 INFO L231 Difference]: Finished difference. Result has 70 places, 40 transitions, 146 flow [2024-10-14 14:27:54,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=146, PETRI_PLACES=70, PETRI_TRANSITIONS=40} [2024-10-14 14:27:54,171 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 17 predicate places. [2024-10-14 14:27:54,171 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 40 transitions, 146 flow [2024-10-14 14:27:54,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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) [2024-10-14 14:27:54,172 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:27:54,172 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:27:54,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 14:27:54,173 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 14:27:54,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:27:54,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1740468603, now seen corresponding path program 1 times [2024-10-14 14:27:54,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:27:54,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919595016] [2024-10-14 14:27:54,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:27:54,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:27:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:27:54,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:27:54,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:27:54,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919595016] [2024-10-14 14:27:54,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919595016] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:27:54,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:27:54,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 14:27:54,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805712867] [2024-10-14 14:27:54,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:27:54,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:27:54,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:27:54,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:27:54,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 14:27:54,356 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 47 [2024-10-14 14:27:54,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 40 transitions, 146 flow. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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) [2024-10-14 14:27:54,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:27:54,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 47 [2024-10-14 14:27:54,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:27:54,517 INFO L124 PetriNetUnfolderBase]: 253/534 cut-off events. [2024-10-14 14:27:54,517 INFO L125 PetriNetUnfolderBase]: For 511/523 co-relation queries the response was YES. [2024-10-14 14:27:54,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1197 conditions, 534 events. 253/534 cut-off events. For 511/523 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2771 event pairs, 45 based on Foata normal form. 24/531 useless extension candidates. Maximal degree in co-relation 1183. Up to 152 conditions per place. [2024-10-14 14:27:54,520 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2024-10-14 14:27:54,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 61 transitions, 280 flow [2024-10-14 14:27:54,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 14:27:54,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 14:27:54,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 243 transitions. [2024-10-14 14:27:54,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6462765957446809 [2024-10-14 14:27:54,522 INFO L175 Difference]: Start difference. First operand has 70 places, 40 transitions, 146 flow. Second operand 8 states and 243 transitions. [2024-10-14 14:27:54,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 61 transitions, 280 flow [2024-10-14 14:27:54,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 61 transitions, 224 flow, removed 21 selfloop flow, removed 11 redundant places. [2024-10-14 14:27:54,524 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2024-10-14 14:27:54,524 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2024-10-14 14:27:54,525 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 7 predicate places. [2024-10-14 14:27:54,525 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2024-10-14 14:27:54,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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) [2024-10-14 14:27:54,529 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-10-14 14:27:54,529 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2024-10-14 14:27:54,530 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-14 14:27:54,530 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-14 14:27:54,530 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-14 14:27:54,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 14:27:54,530 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:27:54,535 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 14:27:54,535 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 14:27:54,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 02:27:54 BasicIcfg [2024-10-14 14:27:54,541 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 14:27:54,542 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 14:27:54,542 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 14:27:54,542 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 14:27:54,543 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:27:49" (3/4) ... [2024-10-14 14:27:54,545 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 14:27:54,548 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-14 14:27:54,548 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-14 14:27:54,548 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-14 14:27:54,548 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-10-14 14:27:54,553 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2024-10-14 14:27:54,553 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-14 14:27:54,554 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-14 14:27:54,554 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 14:27:54,651 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 14:27:54,651 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 14:27:54,651 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 14:27:54,652 INFO L158 Benchmark]: Toolchain (without parser) took 5893.41ms. Allocated memory was 167.8MB in the beginning and 255.9MB in the end (delta: 88.1MB). Free memory was 132.9MB in the beginning and 161.0MB in the end (delta: -28.1MB). Peak memory consumption was 59.9MB. Max. memory is 16.1GB. [2024-10-14 14:27:54,652 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 167.8MB. Free memory is still 131.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 14:27:54,653 INFO L158 Benchmark]: CACSL2BoogieTranslator took 511.92ms. Allocated memory is still 167.8MB. Free memory was 132.9MB in the beginning and 111.0MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-14 14:27:54,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.86ms. Allocated memory is still 167.8MB. Free memory was 111.0MB in the beginning and 108.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 14:27:54,653 INFO L158 Benchmark]: Boogie Preprocessor took 63.81ms. Allocated memory is still 167.8MB. Free memory was 108.9MB in the beginning and 106.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 14:27:54,653 INFO L158 Benchmark]: RCFGBuilder took 510.26ms. Allocated memory is still 167.8MB. Free memory was 106.1MB in the beginning and 119.9MB in the end (delta: -13.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-14 14:27:54,654 INFO L158 Benchmark]: TraceAbstraction took 4636.39ms. Allocated memory was 167.8MB in the beginning and 255.9MB in the end (delta: 88.1MB). Free memory was 118.9MB in the beginning and 165.2MB in the end (delta: -46.3MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2024-10-14 14:27:54,654 INFO L158 Benchmark]: Witness Printer took 109.69ms. Allocated memory is still 255.9MB. Free memory was 165.2MB in the beginning and 161.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 14:27:54,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 167.8MB. Free memory is still 131.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 511.92ms. Allocated memory is still 167.8MB. Free memory was 132.9MB in the beginning and 111.0MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.86ms. Allocated memory is still 167.8MB. Free memory was 111.0MB in the beginning and 108.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.81ms. Allocated memory is still 167.8MB. Free memory was 108.9MB in the beginning and 106.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 510.26ms. Allocated memory is still 167.8MB. Free memory was 106.1MB in the beginning and 119.9MB in the end (delta: -13.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4636.39ms. Allocated memory was 167.8MB in the beginning and 255.9MB in the end (delta: 88.1MB). Free memory was 118.9MB in the beginning and 165.2MB in the end (delta: -46.3MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. * Witness Printer took 109.69ms. Allocated memory is still 255.9MB. Free memory was 165.2MB in the beginning and 161.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 79 locations, 5 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: 4.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 357 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 320 mSDsluCounter, 203 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 146 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 727 IncrementalHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 57 mSDtfsCounter, 727 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=3, InterpolantAutomatonStates: 53, 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, 1.4s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 723 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-14 14:27:54,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE