./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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/safe002_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 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:31:27,378 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:31:27,437 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:31:27,440 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:31:27,440 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:31:27,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:31:27,465 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:31:27,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:31:27,466 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:31:27,468 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:31:27,468 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:31:27,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:31:27,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:31:27,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:31:27,485 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:31:27,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:31:27,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:31:27,485 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:31:27,485 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:31:27,485 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:31:27,485 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:31:27,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:31:27,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:31:27,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:31:27,486 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:31:27,486 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:31:27,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:31:27,487 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:31:27,487 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:31:27,487 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:31:27,488 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:31:27,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:31:27,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:31:27,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:31:27,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:31:27,489 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:31:27,489 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:31:27,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:31:27,489 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:31:27,489 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:31:27,490 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:31:27,490 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:31:27,490 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 [2024-11-09 02:31:27,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:31:27,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:31:27,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:31:27,783 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:31:27,784 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:31:27,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe002_tso.i [2024-11-09 02:31:29,116 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:31:29,353 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:31:29,353 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.i [2024-11-09 02:31:29,367 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5390b183b/2bcc8c48a0c0459f94038d10042f9726/FLAG59de5c542 [2024-11-09 02:31:29,384 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5390b183b/2bcc8c48a0c0459f94038d10042f9726 [2024-11-09 02:31:29,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:31:29,392 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:31:29,397 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:31:29,397 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:31:29,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:31:29,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:31:29" (1/1) ... [2024-11-09 02:31:29,405 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb0b947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29, skipping insertion in model container [2024-11-09 02:31:29,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:31:29" (1/1) ... [2024-11-09 02:31:29,434 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:31:29,583 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/safe002_tso.i[945,958] [2024-11-09 02:31:29,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:31:29,733 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:31:29,745 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/safe002_tso.i[945,958] [2024-11-09 02:31:29,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:31:29,804 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:31:29,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29 WrapperNode [2024-11-09 02:31:29,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:31:29,805 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:31:29,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:31:29,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:31:29,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29" (1/1) ... [2024-11-09 02:31:29,828 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29" (1/1) ... [2024-11-09 02:31:29,849 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2024-11-09 02:31:29,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:31:29,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:31:29,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:31:29,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:31:29,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29" (1/1) ... [2024-11-09 02:31:29,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29" (1/1) ... [2024-11-09 02:31:29,861 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29" (1/1) ... [2024-11-09 02:31:29,878 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]. [2024-11-09 02:31:29,878 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29" (1/1) ... [2024-11-09 02:31:29,878 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29" (1/1) ... [2024-11-09 02:31:29,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29" (1/1) ... [2024-11-09 02:31:29,888 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29" (1/1) ... [2024-11-09 02:31:29,889 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29" (1/1) ... [2024-11-09 02:31:29,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29" (1/1) ... [2024-11-09 02:31:29,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:31:29,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:31:29,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:31:29,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:31:29,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29" (1/1) ... [2024-11-09 02:31:29,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:31:29,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:31:29,930 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) [2024-11-09 02:31:29,936 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 [2024-11-09 02:31:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 02:31:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:31:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 02:31:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 02:31:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 02:31:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 02:31:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 02:31:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 02:31:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:31:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 02:31:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:31:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:31:30,048 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 02:31:30,147 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:31:30,149 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:31:30,250 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:31:30,250 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:31:30,336 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:31:30,337 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 02:31:30,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:31:30 BoogieIcfgContainer [2024-11-09 02:31:30,337 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:31:30,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:31:30,339 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:31:30,342 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:31:30,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:31:29" (1/3) ... [2024-11-09 02:31:30,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ca6c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:31:30, skipping insertion in model container [2024-11-09 02:31:30,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:31:29" (2/3) ... [2024-11-09 02:31:30,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ca6c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:31:30, skipping insertion in model container [2024-11-09 02:31:30,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:31:30" (3/3) ... [2024-11-09 02:31:30,345 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2024-11-09 02:31:30,358 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:31:30,359 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:31:30,359 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:31:30,413 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 02:31:30,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 88 flow [2024-11-09 02:31:30,475 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-11-09 02:31:30,479 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:31:30,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 1/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-11-09 02:31:30,485 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 38 transitions, 88 flow [2024-11-09 02:31:30,487 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 73 flow [2024-11-09 02:31:30,497 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:31:30,504 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;@53937342, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:31:30,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 02:31:30,519 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:31:30,519 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-11-09 02:31:30,520 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:31:30,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:30,523 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:31:30,523 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)] === [2024-11-09 02:31:30,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:30,527 INFO L85 PathProgramCache]: Analyzing trace with hash 958553775, now seen corresponding path program 1 times [2024-11-09 02:31:30,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:30,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991436523] [2024-11-09 02:31:30,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:30,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:30,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:30,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:30,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991436523] [2024-11-09 02:31:30,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991436523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:30,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:30,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:31:30,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868867948] [2024-11-09 02:31:30,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:30,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:31:30,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:30,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:31:30,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:31:31,015 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-11-09 02:31:31,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-09 02:31:31,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:31,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-11-09 02:31:31,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:31,421 INFO L124 PetriNetUnfolderBase]: 1183/2234 cut-off events. [2024-11-09 02:31:31,422 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-09 02:31:31,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4127 conditions, 2234 events. 1183/2234 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 15640 event pairs, 374 based on Foata normal form. 79/2276 useless extension candidates. Maximal degree in co-relation 4116. Up to 818 conditions per place. [2024-11-09 02:31:31,442 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 29 selfloop transitions, 6 changer transitions 35/83 dead transitions. [2024-11-09 02:31:31,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 83 transitions, 321 flow [2024-11-09 02:31:31,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 02:31:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 02:31:31,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2024-11-09 02:31:31,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6917293233082706 [2024-11-09 02:31:31,457 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 73 flow. Second operand 7 states and 184 transitions. [2024-11-09 02:31:31,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 83 transitions, 321 flow [2024-11-09 02:31:31,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 83 transitions, 316 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 02:31:31,464 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 144 flow [2024-11-09 02:31:31,468 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=144, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2024-11-09 02:31:31,473 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2024-11-09 02:31:31,473 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 144 flow [2024-11-09 02:31:31,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-09 02:31:31,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:31,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:31:31,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:31:31,475 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)] === [2024-11-09 02:31:31,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:31,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1253896208, now seen corresponding path program 1 times [2024-11-09 02:31:31,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:31,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924017134] [2024-11-09 02:31:31,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:31,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:31,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:31,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:31,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924017134] [2024-11-09 02:31:31,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924017134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:31,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:31,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:31:31,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124086814] [2024-11-09 02:31:31,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:31,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:31:31,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:31,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:31:31,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:31:31,712 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-11-09 02:31:31,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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) [2024-11-09 02:31:31,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:31,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-11-09 02:31:31,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:32,012 INFO L124 PetriNetUnfolderBase]: 976/1989 cut-off events. [2024-11-09 02:31:32,012 INFO L125 PetriNetUnfolderBase]: For 2099/2105 co-relation queries the response was YES. [2024-11-09 02:31:32,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5416 conditions, 1989 events. 976/1989 cut-off events. For 2099/2105 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 14026 event pairs, 92 based on Foata normal form. 60/2016 useless extension candidates. Maximal degree in co-relation 5400. Up to 704 conditions per place. [2024-11-09 02:31:32,023 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 36 selfloop transitions, 10 changer transitions 46/105 dead transitions. [2024-11-09 02:31:32,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 105 transitions, 664 flow [2024-11-09 02:31:32,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:31:32,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:31:32,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 245 transitions. [2024-11-09 02:31:32,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6447368421052632 [2024-11-09 02:31:32,028 INFO L175 Difference]: Start difference. First operand has 51 places, 37 transitions, 144 flow. Second operand 10 states and 245 transitions. [2024-11-09 02:31:32,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 105 transitions, 664 flow [2024-11-09 02:31:32,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 105 transitions, 610 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:31:32,039 INFO L231 Difference]: Finished difference. Result has 63 places, 43 transitions, 234 flow [2024-11-09 02:31:32,040 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=234, PETRI_PLACES=63, PETRI_TRANSITIONS=43} [2024-11-09 02:31:32,041 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 21 predicate places. [2024-11-09 02:31:32,041 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 43 transitions, 234 flow [2024-11-09 02:31:32,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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) [2024-11-09 02:31:32,041 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:32,041 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:31:32,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:31:32,042 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)] === [2024-11-09 02:31:32,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:32,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1981039572, now seen corresponding path program 1 times [2024-11-09 02:31:32,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:32,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693599877] [2024-11-09 02:31:32,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:32,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:32,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:32,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:32,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693599877] [2024-11-09 02:31:32,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693599877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:32,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:32,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:31:32,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685279237] [2024-11-09 02:31:32,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:32,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:31:32,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:32,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:31:32,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:31:32,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-11-09 02:31:32,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 43 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2024-11-09 02:31:32,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:32,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-11-09 02:31:32,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:32,438 INFO L124 PetriNetUnfolderBase]: 846/1664 cut-off events. [2024-11-09 02:31:32,438 INFO L125 PetriNetUnfolderBase]: For 4527/4539 co-relation queries the response was YES. [2024-11-09 02:31:32,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5462 conditions, 1664 events. 846/1664 cut-off events. For 4527/4539 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 10984 event pairs, 216 based on Foata normal form. 42/1687 useless extension candidates. Maximal degree in co-relation 5437. Up to 662 conditions per place. [2024-11-09 02:31:32,448 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 40 selfloop transitions, 12 changer transitions 32/97 dead transitions. [2024-11-09 02:31:32,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 97 transitions, 676 flow [2024-11-09 02:31:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:31:32,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:31:32,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 236 transitions. [2024-11-09 02:31:32,450 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6210526315789474 [2024-11-09 02:31:32,450 INFO L175 Difference]: Start difference. First operand has 63 places, 43 transitions, 234 flow. Second operand 10 states and 236 transitions. [2024-11-09 02:31:32,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 97 transitions, 676 flow [2024-11-09 02:31:32,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 97 transitions, 610 flow, removed 33 selfloop flow, removed 2 redundant places. [2024-11-09 02:31:32,462 INFO L231 Difference]: Finished difference. Result has 73 places, 46 transitions, 308 flow [2024-11-09 02:31:32,463 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=308, PETRI_PLACES=73, PETRI_TRANSITIONS=46} [2024-11-09 02:31:32,463 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 31 predicate places. [2024-11-09 02:31:32,463 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 46 transitions, 308 flow [2024-11-09 02:31:32,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2024-11-09 02:31:32,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:32,464 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:31:32,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:31:32,464 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)] === [2024-11-09 02:31:32,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:32,465 INFO L85 PathProgramCache]: Analyzing trace with hash 441165449, now seen corresponding path program 1 times [2024-11-09 02:31:32,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:32,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685727887] [2024-11-09 02:31:32,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:32,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:32,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:32,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:32,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685727887] [2024-11-09 02:31:32,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685727887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:32,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:32,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:31:32,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099969497] [2024-11-09 02:31:32,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:32,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:31:32,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:32,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:31:32,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:31:32,566 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2024-11-09 02:31:32,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 46 transitions, 308 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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) [2024-11-09 02:31:32,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:32,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2024-11-09 02:31:32,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:32,784 INFO L124 PetriNetUnfolderBase]: 871/1890 cut-off events. [2024-11-09 02:31:32,784 INFO L125 PetriNetUnfolderBase]: For 4962/5037 co-relation queries the response was YES. [2024-11-09 02:31:32,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6044 conditions, 1890 events. 871/1890 cut-off events. For 4962/5037 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 14334 event pairs, 252 based on Foata normal form. 69/1888 useless extension candidates. Maximal degree in co-relation 6014. Up to 632 conditions per place. [2024-11-09 02:31:32,795 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 28 selfloop transitions, 5 changer transitions 25/75 dead transitions. [2024-11-09 02:31:32,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 75 transitions, 580 flow [2024-11-09 02:31:32,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:31:32,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:31:32,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 155 transitions. [2024-11-09 02:31:32,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6798245614035088 [2024-11-09 02:31:32,797 INFO L175 Difference]: Start difference. First operand has 73 places, 46 transitions, 308 flow. Second operand 6 states and 155 transitions. [2024-11-09 02:31:32,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 75 transitions, 580 flow [2024-11-09 02:31:32,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 75 transitions, 540 flow, removed 18 selfloop flow, removed 11 redundant places. [2024-11-09 02:31:32,822 INFO L231 Difference]: Finished difference. Result has 64 places, 40 transitions, 229 flow [2024-11-09 02:31:32,822 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=229, PETRI_PLACES=64, PETRI_TRANSITIONS=40} [2024-11-09 02:31:32,823 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 22 predicate places. [2024-11-09 02:31:32,823 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 40 transitions, 229 flow [2024-11-09 02:31:32,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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) [2024-11-09 02:31:32,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:32,823 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:31:32,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:31:32,824 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)] === [2024-11-09 02:31:32,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:32,824 INFO L85 PathProgramCache]: Analyzing trace with hash -563962061, now seen corresponding path program 1 times [2024-11-09 02:31:32,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:32,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025271908] [2024-11-09 02:31:32,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:32,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:32,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:32,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:32,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025271908] [2024-11-09 02:31:32,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025271908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:32,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:32,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:31:32,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839563731] [2024-11-09 02:31:32,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:32,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:31:32,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:32,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:31:32,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:31:32,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-11-09 02:31:32,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 40 transitions, 229 flow. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2024-11-09 02:31:32,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:32,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-11-09 02:31:32,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:33,094 INFO L124 PetriNetUnfolderBase]: 703/1422 cut-off events. [2024-11-09 02:31:33,094 INFO L125 PetriNetUnfolderBase]: For 2528/2528 co-relation queries the response was YES. [2024-11-09 02:31:33,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4456 conditions, 1422 events. 703/1422 cut-off events. For 2528/2528 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 9646 event pairs, 131 based on Foata normal form. 42/1424 useless extension candidates. Maximal degree in co-relation 4428. Up to 571 conditions per place. [2024-11-09 02:31:33,102 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 32 selfloop transitions, 7 changer transitions 28/80 dead transitions. [2024-11-09 02:31:33,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 80 transitions, 577 flow [2024-11-09 02:31:33,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:31:33,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 02:31:33,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 188 transitions. [2024-11-09 02:31:33,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.618421052631579 [2024-11-09 02:31:33,103 INFO L175 Difference]: Start difference. First operand has 64 places, 40 transitions, 229 flow. Second operand 8 states and 188 transitions. [2024-11-09 02:31:33,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 80 transitions, 577 flow [2024-11-09 02:31:33,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 80 transitions, 488 flow, removed 16 selfloop flow, removed 11 redundant places. [2024-11-09 02:31:33,110 INFO L231 Difference]: Finished difference. Result has 63 places, 39 transitions, 196 flow [2024-11-09 02:31:33,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=196, PETRI_PLACES=63, PETRI_TRANSITIONS=39} [2024-11-09 02:31:33,111 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 21 predicate places. [2024-11-09 02:31:33,111 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 39 transitions, 196 flow [2024-11-09 02:31:33,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2024-11-09 02:31:33,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:33,112 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:31:33,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 02:31:33,112 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)] === [2024-11-09 02:31:33,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:33,112 INFO L85 PathProgramCache]: Analyzing trace with hash 799663883, now seen corresponding path program 2 times [2024-11-09 02:31:33,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:33,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021289783] [2024-11-09 02:31:33,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:33,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:33,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:33,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021289783] [2024-11-09 02:31:33,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021289783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:33,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:33,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:31:33,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071440449] [2024-11-09 02:31:33,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:33,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:31:33,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:33,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:31:33,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:31:33,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-11-09 02:31:33,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 39 transitions, 196 flow. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 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) [2024-11-09 02:31:33,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:33,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-11-09 02:31:33,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:33,402 INFO L124 PetriNetUnfolderBase]: 626/1309 cut-off events. [2024-11-09 02:31:33,402 INFO L125 PetriNetUnfolderBase]: For 1779/1779 co-relation queries the response was YES. [2024-11-09 02:31:33,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3712 conditions, 1309 events. 626/1309 cut-off events. For 1779/1779 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 9165 event pairs, 159 based on Foata normal form. 38/1310 useless extension candidates. Maximal degree in co-relation 3688. Up to 479 conditions per place. [2024-11-09 02:31:33,409 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 30 selfloop transitions, 8 changer transitions 22/73 dead transitions. [2024-11-09 02:31:33,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 73 transitions, 489 flow [2024-11-09 02:31:33,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 02:31:33,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 02:31:33,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 166 transitions. [2024-11-09 02:31:33,410 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6240601503759399 [2024-11-09 02:31:33,411 INFO L175 Difference]: Start difference. First operand has 63 places, 39 transitions, 196 flow. Second operand 7 states and 166 transitions. [2024-11-09 02:31:33,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 73 transitions, 489 flow [2024-11-09 02:31:33,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 73 transitions, 460 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-09 02:31:33,416 INFO L231 Difference]: Finished difference. Result has 63 places, 38 transitions, 201 flow [2024-11-09 02:31:33,416 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=201, PETRI_PLACES=63, PETRI_TRANSITIONS=38} [2024-11-09 02:31:33,416 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 21 predicate places. [2024-11-09 02:31:33,416 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 38 transitions, 201 flow [2024-11-09 02:31:33,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 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) [2024-11-09 02:31:33,417 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:33,417 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] [2024-11-09 02:31:33,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 02:31:33,417 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)] === [2024-11-09 02:31:33,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:33,418 INFO L85 PathProgramCache]: Analyzing trace with hash 706274284, now seen corresponding path program 1 times [2024-11-09 02:31:33,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:33,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996334743] [2024-11-09 02:31:33,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:33,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:33,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:33,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:33,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996334743] [2024-11-09 02:31:33,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996334743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:33,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:33,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:31:33,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332789359] [2024-11-09 02:31:33,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:33,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:31:33,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:33,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:31:33,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:31:33,505 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2024-11-09 02:31:33,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 38 transitions, 201 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-11-09 02:31:33,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:33,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2024-11-09 02:31:33,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:33,623 INFO L124 PetriNetUnfolderBase]: 286/643 cut-off events. [2024-11-09 02:31:33,623 INFO L125 PetriNetUnfolderBase]: For 1021/1042 co-relation queries the response was YES. [2024-11-09 02:31:33,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1927 conditions, 643 events. 286/643 cut-off events. For 1021/1042 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3844 event pairs, 92 based on Foata normal form. 24/655 useless extension candidates. Maximal degree in co-relation 1903. Up to 183 conditions per place. [2024-11-09 02:31:33,627 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 20 selfloop transitions, 2 changer transitions 25/62 dead transitions. [2024-11-09 02:31:33,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 62 transitions, 355 flow [2024-11-09 02:31:33,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 02:31:33,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 02:31:33,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 170 transitions. [2024-11-09 02:31:33,628 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6390977443609023 [2024-11-09 02:31:33,628 INFO L175 Difference]: Start difference. First operand has 63 places, 38 transitions, 201 flow. Second operand 7 states and 170 transitions. [2024-11-09 02:31:33,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 62 transitions, 355 flow [2024-11-09 02:31:33,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 323 flow, removed 6 selfloop flow, removed 8 redundant places. [2024-11-09 02:31:33,631 INFO L231 Difference]: Finished difference. Result has 62 places, 32 transitions, 122 flow [2024-11-09 02:31:33,631 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=122, PETRI_PLACES=62, PETRI_TRANSITIONS=32} [2024-11-09 02:31:33,632 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2024-11-09 02:31:33,632 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 32 transitions, 122 flow [2024-11-09 02:31:33,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-11-09 02:31:33,632 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:33,632 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] [2024-11-09 02:31:33,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 02:31:33,633 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)] === [2024-11-09 02:31:33,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:33,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1700676406, now seen corresponding path program 2 times [2024-11-09 02:31:33,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:33,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134664002] [2024-11-09 02:31:33,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:33,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:33,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:33,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:33,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134664002] [2024-11-09 02:31:33,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134664002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:33,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:33,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:31:33,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483610239] [2024-11-09 02:31:33,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:33,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:31:33,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:33,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:31:33,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:31:33,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-11-09 02:31:33,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 32 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-11-09 02:31:33,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:33,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-11-09 02:31:33,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:33,788 INFO L124 PetriNetUnfolderBase]: 315/585 cut-off events. [2024-11-09 02:31:33,789 INFO L125 PetriNetUnfolderBase]: For 245/249 co-relation queries the response was YES. [2024-11-09 02:31:33,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1324 conditions, 585 events. 315/585 cut-off events. For 245/249 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2930 event pairs, 144 based on Foata normal form. 27/571 useless extension candidates. Maximal degree in co-relation 1303. Up to 290 conditions per place. [2024-11-09 02:31:33,792 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 23 selfloop transitions, 5 changer transitions 1/45 dead transitions. [2024-11-09 02:31:33,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 45 transitions, 208 flow [2024-11-09 02:31:33,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 02:31:33,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 02:31:33,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-11-09 02:31:33,793 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7302631578947368 [2024-11-09 02:31:33,793 INFO L175 Difference]: Start difference. First operand has 62 places, 32 transitions, 122 flow. Second operand 4 states and 111 transitions. [2024-11-09 02:31:33,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 45 transitions, 208 flow [2024-11-09 02:31:33,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 45 transitions, 180 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-11-09 02:31:33,794 INFO L231 Difference]: Finished difference. Result has 50 places, 35 transitions, 128 flow [2024-11-09 02:31:33,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=50, PETRI_TRANSITIONS=35} [2024-11-09 02:31:33,795 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2024-11-09 02:31:33,795 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 35 transitions, 128 flow [2024-11-09 02:31:33,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-11-09 02:31:33,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:33,796 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] [2024-11-09 02:31:33,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 02:31:33,796 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:31:33,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:33,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1426308873, now seen corresponding path program 1 times [2024-11-09 02:31:33,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:33,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342664023] [2024-11-09 02:31:33,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:33,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:33,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:33,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:33,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342664023] [2024-11-09 02:31:33,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342664023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:33,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:33,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:31:33,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208163355] [2024-11-09 02:31:33,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:33,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:31:33,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:33,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:31:33,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:31:33,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-11-09 02:31:33,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 35 transitions, 128 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-11-09 02:31:33,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:33,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-11-09 02:31:33,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:33,932 INFO L124 PetriNetUnfolderBase]: 245/506 cut-off events. [2024-11-09 02:31:33,933 INFO L125 PetriNetUnfolderBase]: For 262/353 co-relation queries the response was YES. [2024-11-09 02:31:33,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1272 conditions, 506 events. 245/506 cut-off events. For 262/353 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2474 event pairs, 27 based on Foata normal form. 30/515 useless extension candidates. Maximal degree in co-relation 1256. Up to 181 conditions per place. [2024-11-09 02:31:33,935 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 27 selfloop transitions, 8 changer transitions 1/52 dead transitions. [2024-11-09 02:31:33,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 52 transitions, 251 flow [2024-11-09 02:31:33,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:31:33,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 02:31:33,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 138 transitions. [2024-11-09 02:31:33,937 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7263157894736842 [2024-11-09 02:31:33,937 INFO L175 Difference]: Start difference. First operand has 50 places, 35 transitions, 128 flow. Second operand 5 states and 138 transitions. [2024-11-09 02:31:33,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 52 transitions, 251 flow [2024-11-09 02:31:33,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 52 transitions, 241 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-09 02:31:33,938 INFO L231 Difference]: Finished difference. Result has 54 places, 38 transitions, 168 flow [2024-11-09 02:31:33,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=168, PETRI_PLACES=54, PETRI_TRANSITIONS=38} [2024-11-09 02:31:33,939 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 12 predicate places. [2024-11-09 02:31:33,939 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 38 transitions, 168 flow [2024-11-09 02:31:33,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-11-09 02:31:33,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:33,940 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] [2024-11-09 02:31:33,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 02:31:33,940 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:31:33,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:33,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1320705544, now seen corresponding path program 1 times [2024-11-09 02:31:33,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:33,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963968986] [2024-11-09 02:31:33,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:33,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:34,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:34,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:34,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963968986] [2024-11-09 02:31:34,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963968986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:34,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:34,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:31:34,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055329721] [2024-11-09 02:31:34,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:34,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:31:34,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:34,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:31:34,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:31:34,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-11-09 02:31:34,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 38 transitions, 168 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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) [2024-11-09 02:31:34,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:34,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-11-09 02:31:34,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:34,091 INFO L124 PetriNetUnfolderBase]: 150/301 cut-off events. [2024-11-09 02:31:34,092 INFO L125 PetriNetUnfolderBase]: For 369/490 co-relation queries the response was YES. [2024-11-09 02:31:34,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 852 conditions, 301 events. 150/301 cut-off events. For 369/490 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1046 event pairs, 6 based on Foata normal form. 28/315 useless extension candidates. Maximal degree in co-relation 834. Up to 84 conditions per place. [2024-11-09 02:31:34,093 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 25 selfloop transitions, 11 changer transitions 1/53 dead transitions. [2024-11-09 02:31:34,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 53 transitions, 278 flow [2024-11-09 02:31:34,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:31:34,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:31:34,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 159 transitions. [2024-11-09 02:31:34,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6973684210526315 [2024-11-09 02:31:34,094 INFO L175 Difference]: Start difference. First operand has 54 places, 38 transitions, 168 flow. Second operand 6 states and 159 transitions. [2024-11-09 02:31:34,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 53 transitions, 278 flow [2024-11-09 02:31:34,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 237 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-11-09 02:31:34,096 INFO L231 Difference]: Finished difference. Result has 54 places, 38 transitions, 166 flow [2024-11-09 02:31:34,096 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=166, PETRI_PLACES=54, PETRI_TRANSITIONS=38} [2024-11-09 02:31:34,097 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 12 predicate places. [2024-11-09 02:31:34,097 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 38 transitions, 166 flow [2024-11-09 02:31:34,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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) [2024-11-09 02:31:34,097 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:34,097 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, 1, 1] [2024-11-09 02:31:34,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 02:31:34,098 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:31:34,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:34,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1105436729, now seen corresponding path program 1 times [2024-11-09 02:31:34,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:34,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281928874] [2024-11-09 02:31:34,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:34,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:34,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:34,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:34,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281928874] [2024-11-09 02:31:34,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281928874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:34,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:34,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:31:34,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697130716] [2024-11-09 02:31:34,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:34,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:31:34,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:34,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:31:34,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:31:34,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 38 [2024-11-09 02:31:34,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 38 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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) [2024-11-09 02:31:34,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:34,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 38 [2024-11-09 02:31:34,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:34,246 INFO L124 PetriNetUnfolderBase]: 97/233 cut-off events. [2024-11-09 02:31:34,246 INFO L125 PetriNetUnfolderBase]: For 180/184 co-relation queries the response was YES. [2024-11-09 02:31:34,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 233 events. 97/233 cut-off events. For 180/184 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 808 event pairs, 6 based on Foata normal form. 8/226 useless extension candidates. Maximal degree in co-relation 581. Up to 84 conditions per place. [2024-11-09 02:31:34,247 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-11-09 02:31:34,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 48 transitions, 242 flow [2024-11-09 02:31:34,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:31:34,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:31:34,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2024-11-09 02:31:34,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6228070175438597 [2024-11-09 02:31:34,248 INFO L175 Difference]: Start difference. First operand has 54 places, 38 transitions, 166 flow. Second operand 6 states and 142 transitions. [2024-11-09 02:31:34,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 48 transitions, 242 flow [2024-11-09 02:31:34,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 48 transitions, 186 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-09 02:31:34,249 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2024-11-09 02:31:34,249 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2024-11-09 02:31:34,250 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places. [2024-11-09 02:31:34,250 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2024-11-09 02:31:34,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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) [2024-11-09 02:31:34,252 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-09 02:31:34,253 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-09 02:31:34,253 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-09 02:31:34,253 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-09 02:31:34,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 02:31:34,253 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:31:34,256 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 02:31:34,256 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 02:31:34,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 02:31:34 BasicIcfg [2024-11-09 02:31:34,260 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 02:31:34,260 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 02:31:34,261 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 02:31:34,261 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 02:31:34,261 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:31:30" (3/4) ... [2024-11-09 02:31:34,263 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 02:31:34,265 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-09 02:31:34,266 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-09 02:31:34,266 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-09 02:31:34,268 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-09 02:31:34,269 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-09 02:31:34,269 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 02:31:34,269 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 02:31:34,336 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 02:31:34,336 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 02:31:34,336 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 02:31:34,337 INFO L158 Benchmark]: Toolchain (without parser) took 4945.27ms. Allocated memory was 180.4MB in the beginning and 289.4MB in the end (delta: 109.1MB). Free memory was 130.8MB in the beginning and 245.1MB in the end (delta: -114.3MB). Peak memory consumption was 162.4MB. Max. memory is 16.1GB. [2024-11-09 02:31:34,337 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 100.7MB. Free memory was 65.7MB in the beginning and 65.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 02:31:34,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.28ms. Allocated memory is still 180.4MB. Free memory was 130.3MB in the beginning and 107.7MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 02:31:34,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.39ms. Allocated memory is still 180.4MB. Free memory was 107.7MB in the beginning and 105.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 02:31:34,338 INFO L158 Benchmark]: Boogie Preprocessor took 44.58ms. Allocated memory is still 180.4MB. Free memory was 105.7MB in the beginning and 103.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 02:31:34,338 INFO L158 Benchmark]: RCFGBuilder took 441.82ms. Allocated memory is still 180.4MB. Free memory was 103.6MB in the beginning and 130.6MB in the end (delta: -27.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 02:31:34,338 INFO L158 Benchmark]: TraceAbstraction took 3920.93ms. Allocated memory was 180.4MB in the beginning and 289.4MB in the end (delta: 109.1MB). Free memory was 130.6MB in the beginning and 80.0MB in the end (delta: 50.5MB). Peak memory consumption was 161.7MB. Max. memory is 16.1GB. [2024-11-09 02:31:34,338 INFO L158 Benchmark]: Witness Printer took 76.00ms. Allocated memory is still 289.4MB. Free memory was 80.0MB in the beginning and 245.1MB in the end (delta: -165.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 02:31:34,339 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 100.7MB. Free memory was 65.7MB in the beginning and 65.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.28ms. Allocated memory is still 180.4MB. Free memory was 130.3MB in the beginning and 107.7MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.39ms. Allocated memory is still 180.4MB. Free memory was 107.7MB in the beginning and 105.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.58ms. Allocated memory is still 180.4MB. Free memory was 105.7MB in the beginning and 103.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 441.82ms. Allocated memory is still 180.4MB. Free memory was 103.6MB in the beginning and 130.6MB in the end (delta: -27.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3920.93ms. Allocated memory was 180.4MB in the beginning and 289.4MB in the end (delta: 109.1MB). Free memory was 130.6MB in the beginning and 80.0MB in the end (delta: 50.5MB). Peak memory consumption was 161.7MB. Max. memory is 16.1GB. * Witness Printer took 76.00ms. Allocated memory is still 289.4MB. Free memory was 80.0MB in the beginning and 245.1MB in the end (delta: -165.1MB). 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, 62 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 469 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 417 mSDsluCounter, 283 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 208 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1048 IncrementalHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 75 mSDtfsCounter, 1048 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=308occurred in iteration=3, InterpolantAutomatonStates: 76, 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, 1.2s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 826 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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! [2024-11-09 02:31:34,370 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