./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe024_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/pthread-wmm/safe024_tso.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 f830c559346dfed293d38cb3f451f57bf45496349320c2696ae4150a4c0c44e9 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 08:11:43,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 08:11:43,662 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 08:11:43,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 08:11:43,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 08:11:43,704 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 08:11:43,705 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 08:11:43,705 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 08:11:43,706 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 08:11:43,707 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 08:11:43,708 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 08:11:43,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 08:11:43,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 08:11:43,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 08:11:43,711 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 08:11:43,711 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 08:11:43,711 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 08:11:43,711 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 08:11:43,712 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 08:11:43,712 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 08:11:43,712 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 08:11:43,712 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 08:11:43,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 08:11:43,713 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 08:11:43,713 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 08:11:43,713 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 08:11:43,713 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 08:11:43,713 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 08:11:43,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 08:11:43,714 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 08:11:43,714 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 08:11:43,714 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 08:11:43,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:11:43,714 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 08:11:43,714 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 08:11:43,715 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 08:11:43,715 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 08:11:43,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 08:11:43,715 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 08:11:43,715 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 08:11:43,715 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 08:11:43,716 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 08:11:43,716 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f830c559346dfed293d38cb3f451f57bf45496349320c2696ae4150a4c0c44e9 [2024-11-12 08:11:43,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 08:11:43,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 08:11:43,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 08:11:43,927 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 08:11:43,927 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 08:11:43,928 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe024_tso.i [2024-11-12 08:11:45,150 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 08:11:45,359 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 08:11:45,359 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe024_tso.i [2024-11-12 08:11:45,374 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/865ec80fd/0738cdd5b3da4532b34bb80cbed4e890/FLAG140a9009f [2024-11-12 08:11:45,389 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/865ec80fd/0738cdd5b3da4532b34bb80cbed4e890 [2024-11-12 08:11:45,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 08:11:45,393 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 08:11:45,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 08:11:45,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 08:11:45,399 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 08:11:45,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:11:45" (1/1) ... [2024-11-12 08:11:45,401 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2afa06a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45, skipping insertion in model container [2024-11-12 08:11:45,401 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:11:45" (1/1) ... [2024-11-12 08:11:45,435 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 08:11:45,596 WARN L250 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/safe024_tso.i[945,958] [2024-11-12 08:11:45,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:11:45,717 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 08:11:45,726 WARN L250 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/safe024_tso.i[945,958] [2024-11-12 08:11:45,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:11:45,782 INFO L204 MainTranslator]: Completed translation [2024-11-12 08:11:45,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45 WrapperNode [2024-11-12 08:11:45,782 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 08:11:45,783 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 08:11:45,783 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 08:11:45,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 08:11:45,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45" (1/1) ... [2024-11-12 08:11:45,798 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45" (1/1) ... [2024-11-12 08:11:45,817 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-11-12 08:11:45,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 08:11:45,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 08:11:45,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 08:11:45,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 08:11:45,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45" (1/1) ... [2024-11-12 08:11:45,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45" (1/1) ... [2024-11-12 08:11:45,828 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45" (1/1) ... [2024-11-12 08:11:45,837 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]. [2024-11-12 08:11:45,837 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45" (1/1) ... [2024-11-12 08:11:45,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45" (1/1) ... [2024-11-12 08:11:45,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45" (1/1) ... [2024-11-12 08:11:45,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45" (1/1) ... [2024-11-12 08:11:45,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45" (1/1) ... [2024-11-12 08:11:45,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45" (1/1) ... [2024-11-12 08:11:45,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 08:11:45,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 08:11:45,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 08:11:45,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 08:11:45,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45" (1/1) ... [2024-11-12 08:11:45,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:11:45,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:11:45,877 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) [2024-11-12 08:11:45,879 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 [2024-11-12 08:11:45,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 08:11:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 08:11:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-12 08:11:45,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-12 08:11:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-12 08:11:45,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-12 08:11:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-12 08:11:45,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-12 08:11:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 08:11:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 08:11:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 08:11:45,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 08:11:45,915 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 08:11:46,007 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 08:11:46,008 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 08:11:46,113 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 08:11:46,114 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 08:11:46,197 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 08:11:46,197 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 08:11:46,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:11:46 BoogieIcfgContainer [2024-11-12 08:11:46,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 08:11:46,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 08:11:46,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 08:11:46,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 08:11:46,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:11:45" (1/3) ... [2024-11-12 08:11:46,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540b8550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:11:46, skipping insertion in model container [2024-11-12 08:11:46,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:11:45" (2/3) ... [2024-11-12 08:11:46,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540b8550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:11:46, skipping insertion in model container [2024-11-12 08:11:46,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:11:46" (3/3) ... [2024-11-12 08:11:46,205 INFO L112 eAbstractionObserver]: Analyzing ICFG safe024_tso.i [2024-11-12 08:11:46,219 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 08:11:46,219 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 08:11:46,219 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 08:11:46,258 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 08:11:46,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 39 transitions, 90 flow [2024-11-12 08:11:46,311 INFO L124 PetriNetUnfolderBase]: 1/36 cut-off events. [2024-11-12 08:11:46,312 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 08:11:46,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-11-12 08:11:46,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 39 transitions, 90 flow [2024-11-12 08:11:46,316 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 33 transitions, 75 flow [2024-11-12 08:11:46,324 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 08:11:46,330 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;@647932d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 08:11:46,330 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-12 08:11:46,340 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 08:11:46,340 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-11-12 08:11:46,340 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 08:11:46,341 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:11:46,342 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:11:46,342 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 1 more)] === [2024-11-12 08:11:46,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:11:46,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1115842671, now seen corresponding path program 1 times [2024-11-12 08:11:46,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:11:46,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410294439] [2024-11-12 08:11:46,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:11:46,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:11:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:11:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:11:46,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:11:46,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410294439] [2024-11-12 08:11:46,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410294439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:11:46,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:11:46,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 08:11:46,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835423856] [2024-11-12 08:11:46,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:11:46,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 08:11:46,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:11:46,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 08:11:46,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 08:11:46,867 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 39 [2024-11-12 08:11:46,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 75 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-12 08:11:46,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:11:46,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 39 [2024-11-12 08:11:46,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:11:47,090 INFO L124 PetriNetUnfolderBase]: 326/635 cut-off events. [2024-11-12 08:11:47,091 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 08:11:47,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1191 conditions, 635 events. 326/635 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3751 event pairs, 166 based on Foata normal form. 24/642 useless extension candidates. Maximal degree in co-relation 1180. Up to 397 conditions per place. [2024-11-12 08:11:47,100 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 23 selfloop transitions, 3 changer transitions 21/63 dead transitions. [2024-11-12 08:11:47,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 63 transitions, 235 flow [2024-11-12 08:11:47,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 08:11:47,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 08:11:47,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 182 transitions. [2024-11-12 08:11:47,109 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-12 08:11:47,110 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 75 flow. Second operand 7 states and 182 transitions. [2024-11-12 08:11:47,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 63 transitions, 235 flow [2024-11-12 08:11:47,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 63 transitions, 230 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 08:11:47,114 INFO L231 Difference]: Finished difference. Result has 51 places, 35 transitions, 107 flow [2024-11-12 08:11:47,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=107, PETRI_PLACES=51, PETRI_TRANSITIONS=35} [2024-11-12 08:11:47,121 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 8 predicate places. [2024-11-12 08:11:47,122 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 35 transitions, 107 flow [2024-11-12 08:11:47,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-12 08:11:47,122 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:11:47,122 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:11:47,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 08:11:47,122 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 1 more)] === [2024-11-12 08:11:47,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:11:47,123 INFO L85 PathProgramCache]: Analyzing trace with hash 864099950, now seen corresponding path program 1 times [2024-11-12 08:11:47,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:11:47,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962299532] [2024-11-12 08:11:47,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:11:47,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:11:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:11:47,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:11:47,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:11:47,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962299532] [2024-11-12 08:11:47,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962299532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:11:47,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:11:47,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 08:11:47,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830886040] [2024-11-12 08:11:47,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:11:47,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 08:11:47,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:11:47,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 08:11:47,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 08:11:47,316 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 39 [2024-11-12 08:11:47,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 35 transitions, 107 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-11-12 08:11:47,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:11:47,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 39 [2024-11-12 08:11:47,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:11:47,630 INFO L124 PetriNetUnfolderBase]: 599/1160 cut-off events. [2024-11-12 08:11:47,630 INFO L125 PetriNetUnfolderBase]: For 835/835 co-relation queries the response was YES. [2024-11-12 08:11:47,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2775 conditions, 1160 events. 599/1160 cut-off events. For 835/835 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 7333 event pairs, 57 based on Foata normal form. 33/1171 useless extension candidates. Maximal degree in co-relation 2760. Up to 489 conditions per place. [2024-11-12 08:11:47,642 INFO L140 encePairwiseOnDemand]: 31/39 looper letters, 45 selfloop transitions, 11 changer transitions 42/113 dead transitions. [2024-11-12 08:11:47,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 113 transitions, 591 flow [2024-11-12 08:11:47,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 08:11:47,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-12 08:11:47,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 334 transitions. [2024-11-12 08:11:47,646 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6587771203155819 [2024-11-12 08:11:47,647 INFO L175 Difference]: Start difference. First operand has 51 places, 35 transitions, 107 flow. Second operand 13 states and 334 transitions. [2024-11-12 08:11:47,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 113 transitions, 591 flow [2024-11-12 08:11:47,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 113 transitions, 562 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-11-12 08:11:47,655 INFO L231 Difference]: Finished difference. Result has 67 places, 43 transitions, 224 flow [2024-11-12 08:11:47,655 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=224, PETRI_PLACES=67, PETRI_TRANSITIONS=43} [2024-11-12 08:11:47,656 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 24 predicate places. [2024-11-12 08:11:47,656 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 43 transitions, 224 flow [2024-11-12 08:11:47,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-11-12 08:11:47,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:11:47,657 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:11:47,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 08:11:47,657 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 1 more)] === [2024-11-12 08:11:47,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:11:47,658 INFO L85 PathProgramCache]: Analyzing trace with hash -2086659881, now seen corresponding path program 1 times [2024-11-12 08:11:47,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:11:47,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074605596] [2024-11-12 08:11:47,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:11:47,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:11:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:11:47,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:11:47,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:11:47,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074605596] [2024-11-12 08:11:47,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074605596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:11:47,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:11:47,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 08:11:47,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720763532] [2024-11-12 08:11:47,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:11:47,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 08:11:47,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:11:47,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 08:11:47,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-12 08:11:47,804 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 39 [2024-11-12 08:11:47,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 43 transitions, 224 flow. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 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) [2024-11-12 08:11:47,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:11:47,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 39 [2024-11-12 08:11:47,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:11:48,000 INFO L124 PetriNetUnfolderBase]: 597/1176 cut-off events. [2024-11-12 08:11:48,001 INFO L125 PetriNetUnfolderBase]: For 4952/4955 co-relation queries the response was YES. [2024-11-12 08:11:48,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4247 conditions, 1176 events. 597/1176 cut-off events. For 4952/4955 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7715 event pairs, 103 based on Foata normal form. 48/1196 useless extension candidates. Maximal degree in co-relation 4222. Up to 307 conditions per place. [2024-11-12 08:11:48,008 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 26 selfloop transitions, 5 changer transitions 55/101 dead transitions. [2024-11-12 08:11:48,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 101 transitions, 824 flow [2024-11-12 08:11:48,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 08:11:48,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 08:11:48,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 254 transitions. [2024-11-12 08:11:48,012 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6512820512820513 [2024-11-12 08:11:48,012 INFO L175 Difference]: Start difference. First operand has 67 places, 43 transitions, 224 flow. Second operand 10 states and 254 transitions. [2024-11-12 08:11:48,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 101 transitions, 824 flow [2024-11-12 08:11:48,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 101 transitions, 704 flow, removed 55 selfloop flow, removed 7 redundant places. [2024-11-12 08:11:48,024 INFO L231 Difference]: Finished difference. Result has 69 places, 37 transitions, 179 flow [2024-11-12 08:11:48,025 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=179, PETRI_PLACES=69, PETRI_TRANSITIONS=37} [2024-11-12 08:11:48,026 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 26 predicate places. [2024-11-12 08:11:48,026 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 37 transitions, 179 flow [2024-11-12 08:11:48,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 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) [2024-11-12 08:11:48,026 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:11:48,026 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:11:48,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 08:11:48,027 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 1 more)] === [2024-11-12 08:11:48,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:11:48,028 INFO L85 PathProgramCache]: Analyzing trace with hash -805397476, now seen corresponding path program 1 times [2024-11-12 08:11:48,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:11:48,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395891686] [2024-11-12 08:11:48,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:11:48,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:11:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:11:48,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:11:48,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:11:48,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395891686] [2024-11-12 08:11:48,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395891686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:11:48,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:11:48,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 08:11:48,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290887803] [2024-11-12 08:11:48,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:11:48,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 08:11:48,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:11:48,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 08:11:48,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 08:11:48,122 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 39 [2024-11-12 08:11:48,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 37 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-11-12 08:11:48,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:11:48,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 39 [2024-11-12 08:11:48,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:11:48,218 INFO L124 PetriNetUnfolderBase]: 429/869 cut-off events. [2024-11-12 08:11:48,218 INFO L125 PetriNetUnfolderBase]: For 2147/2187 co-relation queries the response was YES. [2024-11-12 08:11:48,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2566 conditions, 869 events. 429/869 cut-off events. For 2147/2187 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5157 event pairs, 94 based on Foata normal form. 35/855 useless extension candidates. Maximal degree in co-relation 2538. Up to 317 conditions per place. [2024-11-12 08:11:48,225 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 26 selfloop transitions, 5 changer transitions 0/52 dead transitions. [2024-11-12 08:11:48,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 52 transitions, 275 flow [2024-11-12 08:11:48,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 08:11:48,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 08:11:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2024-11-12 08:11:48,226 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-12 08:11:48,226 INFO L175 Difference]: Start difference. First operand has 69 places, 37 transitions, 179 flow. Second operand 4 states and 117 transitions. [2024-11-12 08:11:48,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 52 transitions, 275 flow [2024-11-12 08:11:48,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 52 transitions, 243 flow, removed 10 selfloop flow, removed 11 redundant places. [2024-11-12 08:11:48,231 INFO L231 Difference]: Finished difference. Result has 57 places, 41 transitions, 185 flow [2024-11-12 08:11:48,231 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=185, PETRI_PLACES=57, PETRI_TRANSITIONS=41} [2024-11-12 08:11:48,232 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2024-11-12 08:11:48,232 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 41 transitions, 185 flow [2024-11-12 08:11:48,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-11-12 08:11:48,233 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:11:48,233 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:11:48,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 08:11:48,233 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 1 more)] === [2024-11-12 08:11:48,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:11:48,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1486651077, now seen corresponding path program 1 times [2024-11-12 08:11:48,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:11:48,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650105656] [2024-11-12 08:11:48,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:11:48,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:11:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:11:48,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:11:48,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:11:48,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650105656] [2024-11-12 08:11:48,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650105656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:11:48,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:11:48,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 08:11:48,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784696464] [2024-11-12 08:11:48,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:11:48,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 08:11:48,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:11:48,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 08:11:48,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 08:11:48,314 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 39 [2024-11-12 08:11:48,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 41 transitions, 185 flow. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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) [2024-11-12 08:11:48,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:11:48,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 39 [2024-11-12 08:11:48,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:11:48,413 INFO L124 PetriNetUnfolderBase]: 354/728 cut-off events. [2024-11-12 08:11:48,413 INFO L125 PetriNetUnfolderBase]: For 846/1150 co-relation queries the response was YES. [2024-11-12 08:11:48,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2047 conditions, 728 events. 354/728 cut-off events. For 846/1150 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3838 event pairs, 33 based on Foata normal form. 41/727 useless extension candidates. Maximal degree in co-relation 2026. Up to 272 conditions per place. [2024-11-12 08:11:48,417 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 33 selfloop transitions, 8 changer transitions 0/62 dead transitions. [2024-11-12 08:11:48,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 62 transitions, 330 flow [2024-11-12 08:11:48,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 08:11:48,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 08:11:48,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 148 transitions. [2024-11-12 08:11:48,418 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7589743589743589 [2024-11-12 08:11:48,418 INFO L175 Difference]: Start difference. First operand has 57 places, 41 transitions, 185 flow. Second operand 5 states and 148 transitions. [2024-11-12 08:11:48,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 62 transitions, 330 flow [2024-11-12 08:11:48,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 62 transitions, 318 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-12 08:11:48,421 INFO L231 Difference]: Finished difference. Result has 60 places, 45 transitions, 228 flow [2024-11-12 08:11:48,421 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=228, PETRI_PLACES=60, PETRI_TRANSITIONS=45} [2024-11-12 08:11:48,422 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 17 predicate places. [2024-11-12 08:11:48,423 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 45 transitions, 228 flow [2024-11-12 08:11:48,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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) [2024-11-12 08:11:48,423 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:11:48,423 INFO L206 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] [2024-11-12 08:11:48,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 08:11:48,423 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 1 more)] === [2024-11-12 08:11:48,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:11:48,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1093600665, now seen corresponding path program 1 times [2024-11-12 08:11:48,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:11:48,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272229847] [2024-11-12 08:11:48,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:11:48,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:11:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:11:48,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:11:48,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:11:48,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272229847] [2024-11-12 08:11:48,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272229847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:11:48,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:11:48,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 08:11:48,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738132027] [2024-11-12 08:11:48,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:11:48,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 08:11:48,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:11:48,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 08:11:48,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 08:11:48,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 39 [2024-11-12 08:11:48,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 45 transitions, 228 flow. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2024-11-12 08:11:48,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:11:48,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 39 [2024-11-12 08:11:48,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:11:48,602 INFO L124 PetriNetUnfolderBase]: 270/536 cut-off events. [2024-11-12 08:11:48,603 INFO L125 PetriNetUnfolderBase]: For 921/1555 co-relation queries the response was YES. [2024-11-12 08:11:48,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1675 conditions, 536 events. 270/536 cut-off events. For 921/1555 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2403 event pairs, 13 based on Foata normal form. 38/536 useless extension candidates. Maximal degree in co-relation 1653. Up to 200 conditions per place. [2024-11-12 08:11:48,605 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 32 selfloop transitions, 11 changer transitions 0/64 dead transitions. [2024-11-12 08:11:48,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 64 transitions, 363 flow [2024-11-12 08:11:48,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 08:11:48,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 08:11:48,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 171 transitions. [2024-11-12 08:11:48,606 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7307692307692307 [2024-11-12 08:11:48,606 INFO L175 Difference]: Start difference. First operand has 60 places, 45 transitions, 228 flow. Second operand 6 states and 171 transitions. [2024-11-12 08:11:48,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 64 transitions, 363 flow [2024-11-12 08:11:48,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 334 flow, removed 9 selfloop flow, removed 3 redundant places. [2024-11-12 08:11:48,616 INFO L231 Difference]: Finished difference. Result has 64 places, 46 transitions, 244 flow [2024-11-12 08:11:48,617 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=244, PETRI_PLACES=64, PETRI_TRANSITIONS=46} [2024-11-12 08:11:48,617 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2024-11-12 08:11:48,617 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 46 transitions, 244 flow [2024-11-12 08:11:48,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2024-11-12 08:11:48,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:11:48,618 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:11:48,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 08:11:48,618 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 1 more)] === [2024-11-12 08:11:48,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:11:48,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1426421766, now seen corresponding path program 1 times [2024-11-12 08:11:48,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:11:48,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20398808] [2024-11-12 08:11:48,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:11:48,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:11:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:11:48,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:11:48,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:11:48,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20398808] [2024-11-12 08:11:48,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20398808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:11:48,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:11:48,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 08:11:48,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316880617] [2024-11-12 08:11:48,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:11:48,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 08:11:48,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:11:48,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 08:11:48,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 08:11:48,743 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 39 [2024-11-12 08:11:48,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 46 transitions, 244 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-11-12 08:11:48,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:11:48,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 39 [2024-11-12 08:11:48,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:11:48,862 INFO L124 PetriNetUnfolderBase]: 335/784 cut-off events. [2024-11-12 08:11:48,862 INFO L125 PetriNetUnfolderBase]: For 1385/1486 co-relation queries the response was YES. [2024-11-12 08:11:48,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2244 conditions, 784 events. 335/784 cut-off events. For 1385/1486 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4656 event pairs, 105 based on Foata normal form. 13/702 useless extension candidates. Maximal degree in co-relation 2221. Up to 263 conditions per place. [2024-11-12 08:11:48,865 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 18 selfloop transitions, 1 changer transitions 22/67 dead transitions. [2024-11-12 08:11:48,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 67 transitions, 384 flow [2024-11-12 08:11:48,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 08:11:48,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 08:11:48,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 158 transitions. [2024-11-12 08:11:48,866 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6752136752136753 [2024-11-12 08:11:48,866 INFO L175 Difference]: Start difference. First operand has 64 places, 46 transitions, 244 flow. Second operand 6 states and 158 transitions. [2024-11-12 08:11:48,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 67 transitions, 384 flow [2024-11-12 08:11:48,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 67 transitions, 348 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-12 08:11:48,870 INFO L231 Difference]: Finished difference. Result has 68 places, 42 transitions, 203 flow [2024-11-12 08:11:48,870 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=203, PETRI_PLACES=68, PETRI_TRANSITIONS=42} [2024-11-12 08:11:48,871 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 25 predicate places. [2024-11-12 08:11:48,871 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 42 transitions, 203 flow [2024-11-12 08:11:48,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-11-12 08:11:48,871 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:11:48,871 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:11:48,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 08:11:48,871 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 08:11:48,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:11:48,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1499830284, now seen corresponding path program 2 times [2024-11-12 08:11:48,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:11:48,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093607443] [2024-11-12 08:11:48,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:11:48,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:11:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:11:48,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:11:48,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:11:48,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093607443] [2024-11-12 08:11:48,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093607443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:11:48,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:11:48,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 08:11:48,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418993503] [2024-11-12 08:11:48,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:11:48,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 08:11:48,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:11:48,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 08:11:48,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 08:11:48,958 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 39 [2024-11-12 08:11:48,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 42 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-11-12 08:11:48,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:11:48,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 39 [2024-11-12 08:11:48,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:11:49,043 INFO L124 PetriNetUnfolderBase]: 157/405 cut-off events. [2024-11-12 08:11:49,044 INFO L125 PetriNetUnfolderBase]: For 558/618 co-relation queries the response was YES. [2024-11-12 08:11:49,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 405 events. 157/405 cut-off events. For 558/618 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2047 event pairs, 8 based on Foata normal form. 11/375 useless extension candidates. Maximal degree in co-relation 1108. Up to 163 conditions per place. [2024-11-12 08:11:49,047 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2024-11-12 08:11:49,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 52 transitions, 277 flow [2024-11-12 08:11:49,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 08:11:49,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 08:11:49,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2024-11-12 08:11:49,048 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6324786324786325 [2024-11-12 08:11:49,048 INFO L175 Difference]: Start difference. First operand has 68 places, 42 transitions, 203 flow. Second operand 6 states and 148 transitions. [2024-11-12 08:11:49,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 52 transitions, 277 flow [2024-11-12 08:11:49,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 52 transitions, 268 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-12 08:11:49,050 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2024-11-12 08:11:49,050 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2024-11-12 08:11:49,051 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 19 predicate places. [2024-11-12 08:11:49,052 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2024-11-12 08:11:49,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-11-12 08:11:49,054 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-12 08:11:49,054 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-12 08:11:49,054 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-12 08:11:49,055 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-12 08:11:49,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 08:11:49,055 INFO L421 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2024-11-12 08:11:49,060 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 08:11:49,060 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 08:11:49,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:11:49 BasicIcfg [2024-11-12 08:11:49,067 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 08:11:49,068 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 08:11:49,068 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 08:11:49,068 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 08:11:49,068 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:11:46" (3/4) ... [2024-11-12 08:11:49,070 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 08:11:49,072 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-12 08:11:49,072 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-12 08:11:49,072 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-12 08:11:49,075 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-12 08:11:49,076 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-12 08:11:49,076 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-12 08:11:49,076 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-12 08:11:49,146 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 08:11:49,146 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 08:11:49,147 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 08:11:49,147 INFO L158 Benchmark]: Toolchain (without parser) took 3754.32ms. Allocated memory was 188.7MB in the beginning and 247.5MB in the end (delta: 58.7MB). Free memory was 130.2MB in the beginning and 76.2MB in the end (delta: 54.0MB). Peak memory consumption was 114.6MB. Max. memory is 16.1GB. [2024-11-12 08:11:49,147 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 188.7MB. Free memory was 155.5MB in the beginning and 155.2MB in the end (delta: 293.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 08:11:49,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.01ms. Allocated memory is still 188.7MB. Free memory was 129.9MB in the beginning and 107.4MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-12 08:11:49,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.43ms. Allocated memory is still 188.7MB. Free memory was 107.0MB in the beginning and 105.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 08:11:49,148 INFO L158 Benchmark]: Boogie Preprocessor took 26.74ms. Allocated memory is still 188.7MB. Free memory was 105.1MB in the beginning and 103.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 08:11:49,149 INFO L158 Benchmark]: RCFGBuilder took 348.27ms. Allocated memory is still 188.7MB. Free memory was 103.0MB in the beginning and 83.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-12 08:11:49,149 INFO L158 Benchmark]: TraceAbstraction took 2867.53ms. Allocated memory was 188.7MB in the beginning and 247.5MB in the end (delta: 58.7MB). Free memory was 83.0MB in the beginning and 81.4MB in the end (delta: 1.6MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2024-11-12 08:11:49,150 INFO L158 Benchmark]: Witness Printer took 79.05ms. Allocated memory is still 247.5MB. Free memory was 80.4MB in the beginning and 76.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 08:11:49,155 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 188.7MB. Free memory was 155.5MB in the beginning and 155.2MB in the end (delta: 293.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.01ms. Allocated memory is still 188.7MB. Free memory was 129.9MB in the beginning and 107.4MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.43ms. Allocated memory is still 188.7MB. Free memory was 107.0MB in the beginning and 105.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.74ms. Allocated memory is still 188.7MB. Free memory was 105.1MB in the beginning and 103.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 348.27ms. Allocated memory is still 188.7MB. Free memory was 103.0MB in the beginning and 83.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2867.53ms. Allocated memory was 188.7MB in the beginning and 247.5MB in the end (delta: 58.7MB). Free memory was 83.0MB in the beginning and 81.4MB in the end (delta: 1.6MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. * Witness Printer took 79.05ms. Allocated memory is still 247.5MB. Free memory was 80.4MB in the beginning and 76.2MB 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 7 procedures, 64 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 367 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 328 mSDsluCounter, 157 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 107 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 679 IncrementalHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 50 mSDtfsCounter, 679 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=6, InterpolantAutomatonStates: 57, 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, 0.9s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 607 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2024-11-12 08:11:49,176 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