./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c -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 6a1fdac91c77d25a0ff7a4081206e72776b2070a8df670f4d024b55d140add18 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 14:37:40,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 14:37:40,834 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 14:37:40,840 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 14:37:40,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 14:37:40,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 14:37:40,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 14:37:40,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 14:37:40,884 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 14:37:40,884 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 14:37:40,884 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 14:37:40,884 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 14:37:40,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 14:37:40,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 14:37:40,907 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 14:37:40,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 14:37:40,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 14:37:40,908 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 14:37:40,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 14:37:40,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 14:37:40,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 14:37:40,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 14:37:40,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 14:37:40,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 14:37:40,912 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 14:37:40,912 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 14:37:40,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 14:37:40,912 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 14:37:40,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 14:37:40,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 14:37:40,913 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 14:37:40,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 14:37:40,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:37:40,913 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 14:37:40,913 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 14:37:40,913 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 14:37:40,913 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 14:37:40,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 14:37:40,914 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 14:37:40,914 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 14:37:40,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 14:37:40,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 14:37:40,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a1fdac91c77d25a0ff7a4081206e72776b2070a8df670f4d024b55d140add18 [2024-10-14 14:37:41,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 14:37:41,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 14:37:41,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 14:37:41,149 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 14:37:41,149 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 14:37:41,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-10-14 14:37:42,616 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 14:37:42,777 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 14:37:42,777 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-10-14 14:37:42,786 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53483ef54/22c44f1b3974405f9818b23d0e8aad87/FLAG41657569e [2024-10-14 14:37:42,799 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53483ef54/22c44f1b3974405f9818b23d0e8aad87 [2024-10-14 14:37:42,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 14:37:42,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 14:37:42,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 14:37:42,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 14:37:42,810 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 14:37:42,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:37:42" (1/1) ... [2024-10-14 14:37:42,813 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ca9bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:42, skipping insertion in model container [2024-10-14 14:37:42,813 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:37:42" (1/1) ... [2024-10-14 14:37:42,829 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 14:37:42,981 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c[3128,3141] [2024-10-14 14:37:42,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:37:42,998 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 14:37:43,022 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c[3128,3141] [2024-10-14 14:37:43,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:37:43,040 INFO L204 MainTranslator]: Completed translation [2024-10-14 14:37:43,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:43 WrapperNode [2024-10-14 14:37:43,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 14:37:43,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 14:37:43,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 14:37:43,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 14:37:43,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:43" (1/1) ... [2024-10-14 14:37:43,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:43" (1/1) ... [2024-10-14 14:37:43,075 INFO L138 Inliner]: procedures = 21, calls = 40, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 150 [2024-10-14 14:37:43,075 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 14:37:43,076 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 14:37:43,076 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 14:37:43,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 14:37:43,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:43" (1/1) ... [2024-10-14 14:37:43,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:43" (1/1) ... [2024-10-14 14:37:43,087 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:43" (1/1) ... [2024-10-14 14:37:43,099 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 14:37:43,100 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:43" (1/1) ... [2024-10-14 14:37:43,100 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:43" (1/1) ... [2024-10-14 14:37:43,107 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:43" (1/1) ... [2024-10-14 14:37:43,111 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:43" (1/1) ... [2024-10-14 14:37:43,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:43" (1/1) ... [2024-10-14 14:37:43,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:43" (1/1) ... [2024-10-14 14:37:43,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 14:37:43,120 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 14:37:43,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 14:37:43,120 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 14:37:43,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:43" (1/1) ... [2024-10-14 14:37:43,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:37:43,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:37:43,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 14:37:43,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 14:37:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 14:37:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-14 14:37:43,199 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-14 14:37:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-14 14:37:43,199 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-14 14:37:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-14 14:37:43,199 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-14 14:37:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 14:37:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 14:37:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 14:37:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 14:37:43,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 14:37:43,202 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 14:37:43,298 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 14:37:43,300 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 14:37:43,518 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 14:37:43,518 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 14:37:43,759 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 14:37:43,759 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 14:37:43,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:37:43 BoogieIcfgContainer [2024-10-14 14:37:43,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 14:37:43,761 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 14:37:43,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 14:37:43,764 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 14:37:43,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:37:42" (1/3) ... [2024-10-14 14:37:43,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318c571e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:37:43, skipping insertion in model container [2024-10-14 14:37:43,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:37:43" (2/3) ... [2024-10-14 14:37:43,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318c571e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:37:43, skipping insertion in model container [2024-10-14 14:37:43,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:37:43" (3/3) ... [2024-10-14 14:37:43,766 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-10-14 14:37:43,777 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 14:37:43,777 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 14:37:43,777 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 14:37:43,807 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-14 14:37:43,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 35 transitions, 91 flow [2024-10-14 14:37:43,858 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-10-14 14:37:43,860 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 14:37:43,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 32 events. 0/32 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-14 14:37:43,862 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 35 transitions, 91 flow [2024-10-14 14:37:43,864 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 31 transitions, 80 flow [2024-10-14 14:37:43,873 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 14:37:43,878 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;@2072a8ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 14:37:43,879 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-14 14:37:43,893 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 14:37:43,893 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-10-14 14:37:43,894 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 14:37:43,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:37:43,894 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, 1, 1] [2024-10-14 14:37:43,896 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)] === [2024-10-14 14:37:43,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:37:43,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1583622343, now seen corresponding path program 1 times [2024-10-14 14:37:43,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:37:43,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116714683] [2024-10-14 14:37:43,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:37:43,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:37:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:37:44,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:37:44,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:37:44,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116714683] [2024-10-14 14:37:44,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116714683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:37:44,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:37:44,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 14:37:44,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026836472] [2024-10-14 14:37:44,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:37:44,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 14:37:44,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:37:44,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 14:37:44,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 14:37:44,716 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 35 [2024-10-14 14:37:44,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:37:44,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:37:44,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 35 [2024-10-14 14:37:44,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:37:45,056 INFO L124 PetriNetUnfolderBase]: 1711/2642 cut-off events. [2024-10-14 14:37:45,057 INFO L125 PetriNetUnfolderBase]: For 198/198 co-relation queries the response was YES. [2024-10-14 14:37:45,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5480 conditions, 2642 events. 1711/2642 cut-off events. For 198/198 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 13007 event pairs, 1200 based on Foata normal form. 1/2633 useless extension candidates. Maximal degree in co-relation 5011. Up to 1620 conditions per place. [2024-10-14 14:37:45,074 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 51 selfloop transitions, 4 changer transitions 6/65 dead transitions. [2024-10-14 14:37:45,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 65 transitions, 288 flow [2024-10-14 14:37:45,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 14:37:45,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 14:37:45,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-10-14 14:37:45,083 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-10-14 14:37:45,085 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 80 flow. Second operand 4 states and 90 transitions. [2024-10-14 14:37:45,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 65 transitions, 288 flow [2024-10-14 14:37:45,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 65 transitions, 264 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-14 14:37:45,096 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 93 flow [2024-10-14 14:37:45,097 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=93, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2024-10-14 14:37:45,102 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2024-10-14 14:37:45,103 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 93 flow [2024-10-14 14:37:45,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:37:45,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:37:45,104 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, 1, 1] [2024-10-14 14:37:45,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 14:37:45,104 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)] === [2024-10-14 14:37:45,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:37:45,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1584036477, now seen corresponding path program 2 times [2024-10-14 14:37:45,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:37:45,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639489011] [2024-10-14 14:37:45,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:37:45,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:37:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:37:45,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:37:45,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:37:45,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639489011] [2024-10-14 14:37:45,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639489011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:37:45,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:37:45,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 14:37:45,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646233649] [2024-10-14 14:37:45,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:37:45,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 14:37:45,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:37:45,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 14:37:45,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 14:37:45,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-10-14 14:37:45,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 93 flow. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:37:45,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:37:45,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-10-14 14:37:45,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:37:45,439 INFO L124 PetriNetUnfolderBase]: 1025/1843 cut-off events. [2024-10-14 14:37:45,441 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-10-14 14:37:45,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3797 conditions, 1843 events. 1025/1843 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 10628 event pairs, 316 based on Foata normal form. 28/1832 useless extension candidates. Maximal degree in co-relation 1871. Up to 590 conditions per place. [2024-10-14 14:37:45,449 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 52 selfloop transitions, 13 changer transitions 3/78 dead transitions. [2024-10-14 14:37:45,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 78 transitions, 326 flow [2024-10-14 14:37:45,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 14:37:45,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 14:37:45,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2024-10-14 14:37:45,451 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7085714285714285 [2024-10-14 14:37:45,452 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 93 flow. Second operand 5 states and 124 transitions. [2024-10-14 14:37:45,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 78 transitions, 326 flow [2024-10-14 14:37:45,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 78 transitions, 317 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-10-14 14:37:45,456 INFO L231 Difference]: Finished difference. Result has 43 places, 45 transitions, 163 flow [2024-10-14 14:37:45,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=163, PETRI_PLACES=43, PETRI_TRANSITIONS=45} [2024-10-14 14:37:45,457 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2024-10-14 14:37:45,457 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 45 transitions, 163 flow [2024-10-14 14:37:45,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:37:45,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:37:45,458 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, 1, 1] [2024-10-14 14:37:45,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 14:37:45,458 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)] === [2024-10-14 14:37:45,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:37:45,459 INFO L85 PathProgramCache]: Analyzing trace with hash 955250141, now seen corresponding path program 3 times [2024-10-14 14:37:45,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:37:45,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632625621] [2024-10-14 14:37:45,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:37:45,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:37:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:37:45,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:37:45,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:37:45,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632625621] [2024-10-14 14:37:45,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632625621] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:37:45,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:37:45,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 14:37:45,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640016061] [2024-10-14 14:37:45,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:37:45,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 14:37:45,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:37:45,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 14:37:45,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 14:37:45,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-10-14 14:37:45,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 45 transitions, 163 flow. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:37:45,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:37:45,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-10-14 14:37:45,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:37:45,829 INFO L124 PetriNetUnfolderBase]: 959/1785 cut-off events. [2024-10-14 14:37:45,829 INFO L125 PetriNetUnfolderBase]: For 749/759 co-relation queries the response was YES. [2024-10-14 14:37:45,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4448 conditions, 1785 events. 959/1785 cut-off events. For 749/759 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 10468 event pairs, 265 based on Foata normal form. 34/1794 useless extension candidates. Maximal degree in co-relation 1312. Up to 534 conditions per place. [2024-10-14 14:37:45,849 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 47 selfloop transitions, 15 changer transitions 6/78 dead transitions. [2024-10-14 14:37:45,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 78 transitions, 392 flow [2024-10-14 14:37:45,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 14:37:45,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 14:37:45,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2024-10-14 14:37:45,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6971428571428572 [2024-10-14 14:37:45,854 INFO L175 Difference]: Start difference. First operand has 43 places, 45 transitions, 163 flow. Second operand 5 states and 122 transitions. [2024-10-14 14:37:45,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 78 transitions, 392 flow [2024-10-14 14:37:45,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 78 transitions, 392 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 14:37:45,861 INFO L231 Difference]: Finished difference. Result has 49 places, 48 transitions, 223 flow [2024-10-14 14:37:45,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=223, PETRI_PLACES=49, PETRI_TRANSITIONS=48} [2024-10-14 14:37:45,861 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 8 predicate places. [2024-10-14 14:37:45,862 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 48 transitions, 223 flow [2024-10-14 14:37:45,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:37:45,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:37:45,862 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, 1, 1] [2024-10-14 14:37:45,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 14:37:45,862 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)] === [2024-10-14 14:37:45,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:37:45,863 INFO L85 PathProgramCache]: Analyzing trace with hash -949471373, now seen corresponding path program 4 times [2024-10-14 14:37:45,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:37:45,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548222754] [2024-10-14 14:37:45,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:37:45,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:37:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:37:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:37:45,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:37:45,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548222754] [2024-10-14 14:37:45,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548222754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:37:45,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:37:45,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 14:37:45,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953705045] [2024-10-14 14:37:45,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:37:45,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:37:45,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:37:45,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:37:45,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 14:37:45,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-10-14 14:37:45,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 48 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:37:45,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:37:45,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-10-14 14:37:45,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:37:46,199 INFO L124 PetriNetUnfolderBase]: 616/1197 cut-off events. [2024-10-14 14:37:46,200 INFO L125 PetriNetUnfolderBase]: For 1125/1136 co-relation queries the response was YES. [2024-10-14 14:37:46,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3302 conditions, 1197 events. 616/1197 cut-off events. For 1125/1136 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6393 event pairs, 129 based on Foata normal form. 46/1232 useless extension candidates. Maximal degree in co-relation 1044. Up to 463 conditions per place. [2024-10-14 14:37:46,206 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 45 selfloop transitions, 22 changer transitions 16/93 dead transitions. [2024-10-14 14:37:46,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 93 transitions, 554 flow [2024-10-14 14:37:46,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 14:37:46,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 14:37:46,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 140 transitions. [2024-10-14 14:37:46,209 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-14 14:37:46,209 INFO L175 Difference]: Start difference. First operand has 49 places, 48 transitions, 223 flow. Second operand 6 states and 140 transitions. [2024-10-14 14:37:46,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 93 transitions, 554 flow [2024-10-14 14:37:46,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 93 transitions, 511 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 14:37:46,213 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 279 flow [2024-10-14 14:37:46,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=279, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2024-10-14 14:37:46,213 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 12 predicate places. [2024-10-14 14:37:46,214 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 279 flow [2024-10-14 14:37:46,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:37:46,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:37:46,214 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, 1, 1] [2024-10-14 14:37:46,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 14:37:46,215 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)] === [2024-10-14 14:37:46,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:37:46,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1131299265, now seen corresponding path program 5 times [2024-10-14 14:37:46,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:37:46,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478486026] [2024-10-14 14:37:46,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:37:46,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:37:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:37:46,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:37:46,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:37:46,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478486026] [2024-10-14 14:37:46,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478486026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:37:46,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:37:46,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 14:37:46,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871946597] [2024-10-14 14:37:46,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:37:46,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 14:37:46,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:37:46,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 14:37:46,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 14:37:46,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-10-14 14:37:46,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 279 flow. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:37:46,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:37:46,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-10-14 14:37:46,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:37:46,472 INFO L124 PetriNetUnfolderBase]: 338/667 cut-off events. [2024-10-14 14:37:46,473 INFO L125 PetriNetUnfolderBase]: For 770/781 co-relation queries the response was YES. [2024-10-14 14:37:46,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1994 conditions, 667 events. 338/667 cut-off events. For 770/781 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2960 event pairs, 81 based on Foata normal form. 26/680 useless extension candidates. Maximal degree in co-relation 760. Up to 209 conditions per place. [2024-10-14 14:37:46,476 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 41 selfloop transitions, 18 changer transitions 14/83 dead transitions. [2024-10-14 14:37:46,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 83 transitions, 520 flow [2024-10-14 14:37:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 14:37:46,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 14:37:46,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 159 transitions. [2024-10-14 14:37:46,478 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5678571428571428 [2024-10-14 14:37:46,478 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 279 flow. Second operand 8 states and 159 transitions. [2024-10-14 14:37:46,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 83 transitions, 520 flow [2024-10-14 14:37:46,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 83 transitions, 512 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-14 14:37:46,480 INFO L231 Difference]: Finished difference. Result has 61 places, 46 transitions, 278 flow [2024-10-14 14:37:46,481 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=278, PETRI_PLACES=61, PETRI_TRANSITIONS=46} [2024-10-14 14:37:46,481 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 20 predicate places. [2024-10-14 14:37:46,481 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 46 transitions, 278 flow [2024-10-14 14:37:46,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:37:46,482 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:37:46,482 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, 1, 1] [2024-10-14 14:37:46,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 14:37:46,482 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)] === [2024-10-14 14:37:46,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:37:46,483 INFO L85 PathProgramCache]: Analyzing trace with hash -889154511, now seen corresponding path program 6 times [2024-10-14 14:37:46,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:37:46,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122082353] [2024-10-14 14:37:46,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:37:46,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:37:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:37:46,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:37:46,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:37:46,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122082353] [2024-10-14 14:37:46,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122082353] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:37:46,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:37:46,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 14:37:46,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654342833] [2024-10-14 14:37:46,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:37:46,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 14:37:46,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:37:46,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 14:37:46,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 14:37:46,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-10-14 14:37:46,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 46 transitions, 278 flow. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:37:46,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:37:46,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-10-14 14:37:46,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:37:46,730 INFO L124 PetriNetUnfolderBase]: 270/546 cut-off events. [2024-10-14 14:37:46,730 INFO L125 PetriNetUnfolderBase]: For 1132/1139 co-relation queries the response was YES. [2024-10-14 14:37:46,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1731 conditions, 546 events. 270/546 cut-off events. For 1132/1139 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2308 event pairs, 75 based on Foata normal form. 22/561 useless extension candidates. Maximal degree in co-relation 803. Up to 153 conditions per place. [2024-10-14 14:37:46,733 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 36 selfloop transitions, 12 changer transitions 23/80 dead transitions. [2024-10-14 14:37:46,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 80 transitions, 542 flow [2024-10-14 14:37:46,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 14:37:46,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 14:37:46,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 158 transitions. [2024-10-14 14:37:46,734 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5642857142857143 [2024-10-14 14:37:46,734 INFO L175 Difference]: Start difference. First operand has 61 places, 46 transitions, 278 flow. Second operand 8 states and 158 transitions. [2024-10-14 14:37:46,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 80 transitions, 542 flow [2024-10-14 14:37:46,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 80 transitions, 488 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-10-14 14:37:46,737 INFO L231 Difference]: Finished difference. Result has 61 places, 38 transitions, 206 flow [2024-10-14 14:37:46,737 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=206, PETRI_PLACES=61, PETRI_TRANSITIONS=38} [2024-10-14 14:37:46,738 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 20 predicate places. [2024-10-14 14:37:46,738 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 38 transitions, 206 flow [2024-10-14 14:37:46,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:37:46,738 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:37:46,738 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, 1, 1] [2024-10-14 14:37:46,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 14:37:46,738 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)] === [2024-10-14 14:37:46,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:37:46,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2066331271, now seen corresponding path program 7 times [2024-10-14 14:37:46,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:37:46,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301392759] [2024-10-14 14:37:46,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:37:46,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:37:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:37:46,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:37:46,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:37:46,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301392759] [2024-10-14 14:37:46,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301392759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:37:46,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:37:46,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 14:37:46,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154219980] [2024-10-14 14:37:46,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:37:46,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 14:37:46,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:37:46,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 14:37:46,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 14:37:46,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-10-14 14:37:46,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 38 transitions, 206 flow. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:37:46,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:37:46,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-10-14 14:37:46,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:37:46,909 INFO L124 PetriNetUnfolderBase]: 34/86 cut-off events. [2024-10-14 14:37:46,910 INFO L125 PetriNetUnfolderBase]: For 164/164 co-relation queries the response was YES. [2024-10-14 14:37:46,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 86 events. 34/86 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 223 event pairs, 4 based on Foata normal form. 16/101 useless extension candidates. Maximal degree in co-relation 307. Up to 20 conditions per place. [2024-10-14 14:37:46,910 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2024-10-14 14:37:46,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 32 transitions, 203 flow [2024-10-14 14:37:46,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 14:37:46,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 14:37:46,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 117 transitions. [2024-10-14 14:37:46,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41785714285714287 [2024-10-14 14:37:46,912 INFO L175 Difference]: Start difference. First operand has 61 places, 38 transitions, 206 flow. Second operand 8 states and 117 transitions. [2024-10-14 14:37:46,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 32 transitions, 203 flow [2024-10-14 14:37:46,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 32 transitions, 166 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-10-14 14:37:46,913 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2024-10-14 14:37:46,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2024-10-14 14:37:46,914 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2024-10-14 14:37:46,914 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2024-10-14 14:37:46,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:37:46,917 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-10-14 14:37:46,917 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-10-14 14:37:46,918 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-14 14:37:46,918 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-14 14:37:46,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 14:37:46,918 INFO L407 BasicCegarLoop]: Path program histogram: [7] [2024-10-14 14:37:46,921 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 14:37:46,921 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 14:37:46,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 02:37:46 BasicIcfg [2024-10-14 14:37:46,925 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 14:37:46,925 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 14:37:46,925 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 14:37:46,926 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 14:37:46,926 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:37:43" (3/4) ... [2024-10-14 14:37:46,927 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 14:37:46,929 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-14 14:37:46,930 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-14 14:37:46,930 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-14 14:37:46,935 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2024-10-14 14:37:46,935 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-14 14:37:46,935 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-14 14:37:46,935 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-14 14:37:46,992 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 14:37:46,993 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 14:37:46,993 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 14:37:46,993 INFO L158 Benchmark]: Toolchain (without parser) took 4190.33ms. Allocated memory was 243.3MB in the beginning and 373.3MB in the end (delta: 130.0MB). Free memory was 175.2MB in the beginning and 286.4MB in the end (delta: -111.2MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-10-14 14:37:46,993 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 14:37:46,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.86ms. Allocated memory is still 243.3MB. Free memory was 175.0MB in the beginning and 162.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-14 14:37:46,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.25ms. Allocated memory is still 243.3MB. Free memory was 162.6MB in the beginning and 160.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 14:37:46,994 INFO L158 Benchmark]: Boogie Preprocessor took 37.91ms. Allocated memory is still 243.3MB. Free memory was 160.8MB in the beginning and 158.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 14:37:46,994 INFO L158 Benchmark]: RCFGBuilder took 640.35ms. Allocated memory is still 243.3MB. Free memory was 158.5MB in the beginning and 198.7MB in the end (delta: -40.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-14 14:37:46,995 INFO L158 Benchmark]: TraceAbstraction took 3163.75ms. Allocated memory was 243.3MB in the beginning and 373.3MB in the end (delta: 130.0MB). Free memory was 197.7MB in the beginning and 290.6MB in the end (delta: -92.9MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2024-10-14 14:37:46,995 INFO L158 Benchmark]: Witness Printer took 67.38ms. Allocated memory is still 373.3MB. Free memory was 290.6MB in the beginning and 286.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 14:37:46,996 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.86ms. Allocated memory is still 243.3MB. Free memory was 175.0MB in the beginning and 162.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.25ms. Allocated memory is still 243.3MB. Free memory was 162.6MB in the beginning and 160.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.91ms. Allocated memory is still 243.3MB. Free memory was 160.8MB in the beginning and 158.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 640.35ms. Allocated memory is still 243.3MB. Free memory was 158.5MB in the beginning and 198.7MB in the end (delta: -40.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3163.75ms. Allocated memory was 243.3MB in the beginning and 373.3MB in the end (delta: 130.0MB). Free memory was 197.7MB in the beginning and 290.6MB in the end (delta: -92.9MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. * Witness Printer took 67.38ms. Allocated memory is still 373.3MB. Free memory was 290.6MB in the beginning and 286.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: 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, 61 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: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 234 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 232 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 923 IncrementalHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 2 mSDtfsCounter, 923 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=279occurred in iteration=4, InterpolantAutomatonStates: 44, 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, 1.1s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 804 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-14 14:37:47,017 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