./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.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/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.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 16b41d7352a3e7bca6c65d29839f35cd9a045339e5497acb7d0d6bf7ecef2ad7 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:35:41,263 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:35:41,327 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:35:41,332 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:35:41,333 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:35:41,364 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:35:41,365 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:35:41,365 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:35:41,366 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:35:41,368 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:35:41,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:35:41,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:35:41,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:35:41,369 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:35:41,369 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:35:41,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:35:41,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:35:41,373 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:35:41,373 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:35:41,374 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:35:41,374 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:35:41,374 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:35:41,375 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:35:41,375 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:35:41,375 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:35:41,375 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:35:41,375 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:35:41,375 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:35:41,376 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:35:41,376 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:35:41,376 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:35:41,376 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:35:41,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:35:41,377 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:35:41,377 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:35:41,377 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:35:41,377 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:35:41,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:35:41,378 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:35:41,378 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:35:41,380 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:35:41,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:35:41,380 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16b41d7352a3e7bca6c65d29839f35cd9a045339e5497acb7d0d6bf7ecef2ad7 [2024-11-09 02:35:41,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:35:41,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:35:41,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:35:41,703 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:35:41,703 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:35:41,704 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2024-11-09 02:35:43,158 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:35:43,424 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:35:43,425 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2024-11-09 02:35:43,449 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8131e25e5/71b60500dfd24de1879c005716409318/FLAG0de7253c2 [2024-11-09 02:35:43,469 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8131e25e5/71b60500dfd24de1879c005716409318 [2024-11-09 02:35:43,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:35:43,473 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:35:43,475 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:35:43,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:35:43,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:35:43,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:35:43" (1/1) ... [2024-11-09 02:35:43,482 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d71c972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:43, skipping insertion in model container [2024-11-09 02:35:43,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:35:43" (1/1) ... [2024-11-09 02:35:43,526 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:35:43,723 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/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i[1097,1110] [2024-11-09 02:35:43,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:35:43,917 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:35:43,930 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/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i[1097,1110] [2024-11-09 02:35:43,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:35:44,001 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:35:44,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:44 WrapperNode [2024-11-09 02:35:44,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:35:44,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:35:44,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:35:44,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:35:44,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:44" (1/1) ... [2024-11-09 02:35:44,022 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:44" (1/1) ... [2024-11-09 02:35:44,046 INFO L138 Inliner]: procedures = 162, calls = 32, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 57 [2024-11-09 02:35:44,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:35:44,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:35:44,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:35:44,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:35:44,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:44" (1/1) ... [2024-11-09 02:35:44,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:44" (1/1) ... [2024-11-09 02:35:44,062 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:44" (1/1) ... [2024-11-09 02:35:44,075 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-11-09 02:35:44,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:44" (1/1) ... [2024-11-09 02:35:44,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:44" (1/1) ... [2024-11-09 02:35:44,081 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:44" (1/1) ... [2024-11-09 02:35:44,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:44" (1/1) ... [2024-11-09 02:35:44,088 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:44" (1/1) ... [2024-11-09 02:35:44,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:44" (1/1) ... [2024-11-09 02:35:44,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:35:44,092 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:35:44,092 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:35:44,092 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:35:44,093 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:44" (1/1) ... [2024-11-09 02:35:44,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:35:44,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:35:44,137 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 02:35:44,141 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 02:35:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 02:35:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:35:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 02:35:44,195 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 02:35:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:35:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 02:35:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 02:35:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 02:35:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:35:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:35:44,199 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 02:35:44,461 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:35:44,464 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:35:44,650 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:35:44,653 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:35:44,792 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:35:44,792 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 02:35:44,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:35:44 BoogieIcfgContainer [2024-11-09 02:35:44,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:35:44,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:35:44,797 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:35:44,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:35:44,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:35:43" (1/3) ... [2024-11-09 02:35:44,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5c464a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:35:44, skipping insertion in model container [2024-11-09 02:35:44,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:35:44" (2/3) ... [2024-11-09 02:35:44,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5c464a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:35:44, skipping insertion in model container [2024-11-09 02:35:44,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:35:44" (3/3) ... [2024-11-09 02:35:44,806 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2024-11-09 02:35:44,821 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:35:44,822 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:35:44,822 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:35:44,859 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 02:35:44,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 36 transitions, 79 flow [2024-11-09 02:35:44,918 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-11-09 02:35:44,918 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 02:35:44,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 35 events. 1/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-11-09 02:35:44,921 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 36 transitions, 79 flow [2024-11-09 02:35:44,924 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 26 transitions, 55 flow [2024-11-09 02:35:44,934 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:35:44,940 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;@72b21372, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:35:44,940 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 02:35:44,950 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:35:44,950 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-11-09 02:35:44,950 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:35:44,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:35:44,951 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:35:44,952 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:35:44,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:35:44,958 INFO L85 PathProgramCache]: Analyzing trace with hash -313552842, now seen corresponding path program 1 times [2024-11-09 02:35:44,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:35:44,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068437126] [2024-11-09 02:35:44,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:35:44,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:35:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:35:45,368 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 02:35:45,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:35:45,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068437126] [2024-11-09 02:35:45,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068437126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:35:45,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:35:45,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:35:45,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659927159] [2024-11-09 02:35:45,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:35:45,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:35:45,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:35:45,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:35:45,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:35:45,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 36 [2024-11-09 02:35:45,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 55 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 02:35:45,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:35:45,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 36 [2024-11-09 02:35:45,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:35:45,572 INFO L124 PetriNetUnfolderBase]: 59/176 cut-off events. [2024-11-09 02:35:45,572 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:35:45,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 176 events. 59/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 662 event pairs, 22 based on Foata normal form. 10/185 useless extension candidates. Maximal degree in co-relation 316. Up to 104 conditions per place. [2024-11-09 02:35:45,578 INFO L140 encePairwiseOnDemand]: 32/36 looper letters, 21 selfloop transitions, 2 changer transitions 10/41 dead transitions. [2024-11-09 02:35:45,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 41 transitions, 151 flow [2024-11-09 02:35:45,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:35:45,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 02:35:45,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 90 transitions. [2024-11-09 02:35:45,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-09 02:35:45,592 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 55 flow. Second operand 5 states and 90 transitions. [2024-11-09 02:35:45,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 41 transitions, 151 flow [2024-11-09 02:35:45,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 41 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 02:35:45,597 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 66 flow [2024-11-09 02:35:45,598 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=66, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2024-11-09 02:35:45,602 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 6 predicate places. [2024-11-09 02:35:45,602 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 66 flow [2024-11-09 02:35:45,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 02:35:45,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:35:45,603 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:35:45,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:35:45,603 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:35:45,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:35:45,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2054990387, now seen corresponding path program 1 times [2024-11-09 02:35:45,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:35:45,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146263732] [2024-11-09 02:35:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:35:45,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:35:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:35:45,758 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 02:35:45,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:35:45,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146263732] [2024-11-09 02:35:45,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146263732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:35:45,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:35:45,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:35:45,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931764764] [2024-11-09 02:35:45,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:35:45,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:35:45,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:35:45,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:35:45,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:35:45,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 36 [2024-11-09 02:35:45,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 02:35:45,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:35:45,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 36 [2024-11-09 02:35:45,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:35:45,893 INFO L124 PetriNetUnfolderBase]: 32/123 cut-off events. [2024-11-09 02:35:45,893 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 02:35:45,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 123 events. 32/123 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 393 event pairs, 15 based on Foata normal form. 13/133 useless extension candidates. Maximal degree in co-relation 236. Up to 51 conditions per place. [2024-11-09 02:35:45,897 INFO L140 encePairwiseOnDemand]: 28/36 looper letters, 16 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2024-11-09 02:35:45,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 33 transitions, 130 flow [2024-11-09 02:35:45,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:35:45,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:35:45,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-09 02:35:45,899 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6203703703703703 [2024-11-09 02:35:45,899 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 66 flow. Second operand 3 states and 67 transitions. [2024-11-09 02:35:45,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 33 transitions, 130 flow [2024-11-09 02:35:45,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 33 transitions, 122 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-09 02:35:45,901 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 90 flow [2024-11-09 02:35:45,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2024-11-09 02:35:45,903 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2024-11-09 02:35:45,904 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 90 flow [2024-11-09 02:35:45,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 02:35:45,904 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:35:45,904 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 02:35:45,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:35:45,904 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:35:45,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:35:45,905 INFO L85 PathProgramCache]: Analyzing trace with hash 797317171, now seen corresponding path program 1 times [2024-11-09 02:35:45,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:35:45,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115223128] [2024-11-09 02:35:45,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:35:45,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:35:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:35:46,200 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 02:35:46,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:35:46,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115223128] [2024-11-09 02:35:46,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115223128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:35:46,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:35:46,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:35:46,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133189694] [2024-11-09 02:35:46,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:35:46,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:35:46,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:35:46,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:35:46,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:35:46,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 36 [2024-11-09 02:35:46,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 02:35:46,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:35:46,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 36 [2024-11-09 02:35:46,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:35:46,280 INFO L124 PetriNetUnfolderBase]: 21/92 cut-off events. [2024-11-09 02:35:46,283 INFO L125 PetriNetUnfolderBase]: For 46/49 co-relation queries the response was YES. [2024-11-09 02:35:46,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 92 events. 21/92 cut-off events. For 46/49 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 203 event pairs, 5 based on Foata normal form. 9/101 useless extension candidates. Maximal degree in co-relation 207. Up to 46 conditions per place. [2024-11-09 02:35:46,285 INFO L140 encePairwiseOnDemand]: 32/36 looper letters, 18 selfloop transitions, 5 changer transitions 0/32 dead transitions. [2024-11-09 02:35:46,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 150 flow [2024-11-09 02:35:46,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 02:35:46,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 02:35:46,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 75 transitions. [2024-11-09 02:35:46,286 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2024-11-09 02:35:46,286 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 90 flow. Second operand 4 states and 75 transitions. [2024-11-09 02:35:46,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 150 flow [2024-11-09 02:35:46,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 02:35:46,288 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 92 flow [2024-11-09 02:35:46,288 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2024-11-09 02:35:46,291 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2024-11-09 02:35:46,292 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 92 flow [2024-11-09 02:35:46,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 02:35:46,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:35:46,292 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] [2024-11-09 02:35:46,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:35:46,293 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:35:46,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:35:46,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2063438896, now seen corresponding path program 1 times [2024-11-09 02:35:46,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:35:46,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778574] [2024-11-09 02:35:46,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:35:46,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:35:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:35:46,490 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 02:35:46,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:35:46,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778574] [2024-11-09 02:35:46,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:35:46,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:35:46,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:35:46,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043967306] [2024-11-09 02:35:46,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:35:46,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:35:46,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:35:46,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:35:46,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:35:46,501 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 36 [2024-11-09 02:35:46,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 02:35:46,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:35:46,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 36 [2024-11-09 02:35:46,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:35:46,594 INFO L124 PetriNetUnfolderBase]: 21/86 cut-off events. [2024-11-09 02:35:46,594 INFO L125 PetriNetUnfolderBase]: For 36/38 co-relation queries the response was YES. [2024-11-09 02:35:46,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 86 events. 21/86 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 198 event pairs, 14 based on Foata normal form. 2/87 useless extension candidates. Maximal degree in co-relation 199. Up to 51 conditions per place. [2024-11-09 02:35:46,595 INFO L140 encePairwiseOnDemand]: 31/36 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2024-11-09 02:35:46,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 30 transitions, 146 flow [2024-11-09 02:35:46,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:35:46,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 02:35:46,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2024-11-09 02:35:46,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42777777777777776 [2024-11-09 02:35:46,599 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 92 flow. Second operand 5 states and 77 transitions. [2024-11-09 02:35:46,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 30 transitions, 146 flow [2024-11-09 02:35:46,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 141 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:35:46,601 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2024-11-09 02:35:46,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2024-11-09 02:35:46,605 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2024-11-09 02:35:46,605 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2024-11-09 02:35:46,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 02:35:46,608 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-09 02:35:46,609 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-11-09 02:35:46,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:35:46,609 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 02:35:46,615 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 02:35:46,616 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 02:35:46,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 02:35:46 BasicIcfg [2024-11-09 02:35:46,623 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 02:35:46,623 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 02:35:46,624 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 02:35:46,624 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 02:35:46,624 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:35:44" (3/4) ... [2024-11-09 02:35:46,628 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 02:35:46,632 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-09 02:35:46,637 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-09 02:35:46,637 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 02:35:46,637 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 02:35:46,638 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 02:35:46,731 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 02:35:46,732 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 02:35:46,732 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 02:35:46,733 INFO L158 Benchmark]: Toolchain (without parser) took 3259.03ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 109.2MB in the beginning and 145.2MB in the end (delta: -36.0MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-11-09 02:35:46,733 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 02:35:46,734 INFO L158 Benchmark]: CACSL2BoogieTranslator took 526.55ms. Allocated memory is still 155.2MB. Free memory was 109.2MB in the beginning and 86.7MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 02:35:46,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.48ms. Allocated memory is still 155.2MB. Free memory was 86.7MB in the beginning and 85.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 02:35:46,735 INFO L158 Benchmark]: Boogie Preprocessor took 43.72ms. Allocated memory is still 155.2MB. Free memory was 85.0MB in the beginning and 83.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 02:35:46,735 INFO L158 Benchmark]: RCFGBuilder took 700.91ms. Allocated memory is still 155.2MB. Free memory was 83.0MB in the beginning and 103.6MB in the end (delta: -20.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 02:35:46,735 INFO L158 Benchmark]: TraceAbstraction took 1826.07ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 103.6MB in the beginning and 149.4MB in the end (delta: -45.8MB). Peak memory consumption was 901.9kB. Max. memory is 16.1GB. [2024-11-09 02:35:46,736 INFO L158 Benchmark]: Witness Printer took 108.42ms. Allocated memory is still 199.2MB. Free memory was 149.4MB in the beginning and 145.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 02:35:46,742 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 526.55ms. Allocated memory is still 155.2MB. Free memory was 109.2MB in the beginning and 86.7MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.48ms. Allocated memory is still 155.2MB. Free memory was 86.7MB in the beginning and 85.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.72ms. Allocated memory is still 155.2MB. Free memory was 85.0MB in the beginning and 83.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 700.91ms. Allocated memory is still 155.2MB. Free memory was 83.0MB in the beginning and 103.6MB in the end (delta: -20.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1826.07ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 103.6MB in the beginning and 149.4MB in the end (delta: -45.8MB). Peak memory consumption was 901.9kB. Max. memory is 16.1GB. * Witness Printer took 108.42ms. Allocated memory is still 199.2MB. Free memory was 149.4MB in the beginning and 145.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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 3 procedures, 51 locations, 2 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: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 190 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 3 mSDtfsCounter, 190 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=3, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 327 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 02:35:46,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE