./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-atomic/szymanski.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 a3cd4be37ada319d324d40d8d6c18fff519996a186a93f33b3070275487295e3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:28:23,513 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:28:23,583 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:28:23,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:28:23,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:28:23,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:28:23,616 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:28:23,618 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:28:23,618 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:28:23,622 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:28:23,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:28:23,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:28:23,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:28:23,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:28:23,623 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:28:23,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:28:23,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:28:23,625 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:28:23,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:28:23,625 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:28:23,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:28:23,626 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:28:23,626 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:28:23,627 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:28:23,627 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:28:23,627 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:28:23,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:28:23,627 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:28:23,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:28:23,628 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:28:23,628 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:28:23,628 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:28:23,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:28:23,629 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:28:23,629 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:28:23,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:28:23,631 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:28:23,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:28:23,631 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:28:23,631 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:28:23,632 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:28:23,632 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:28:23,632 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3cd4be37ada319d324d40d8d6c18fff519996a186a93f33b3070275487295e3 [2024-11-19 01:28:23,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:28:23,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:28:23,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:28:23,936 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:28:23,936 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:28:23,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/szymanski.i [2024-11-19 01:28:25,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:28:25,573 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:28:25,575 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i [2024-11-19 01:28:25,597 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7be6260a/85c0a3d085c54ea2beef6fd30e2ae7bc/FLAG69ae0fd02 [2024-11-19 01:28:25,847 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7be6260a/85c0a3d085c54ea2beef6fd30e2ae7bc [2024-11-19 01:28:25,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:28:25,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:28:25,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:28:25,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:28:25,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:28:25,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:28:25" (1/1) ... [2024-11-19 01:28:25,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dc0709a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:25, skipping insertion in model container [2024-11-19 01:28:25,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:28:25" (1/1) ... [2024-11-19 01:28:25,908 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:28:26,220 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[32419,32432] [2024-11-19 01:28:26,230 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[32696,32709] [2024-11-19 01:28:26,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:28:26,273 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:28:26,362 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[32419,32432] [2024-11-19 01:28:26,364 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[32696,32709] [2024-11-19 01:28:26,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:28:26,401 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:28:26,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:26 WrapperNode [2024-11-19 01:28:26,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:28:26,402 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:28:26,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:28:26,402 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:28:26,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:26" (1/1) ... [2024-11-19 01:28:26,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:26" (1/1) ... [2024-11-19 01:28:26,442 INFO L138 Inliner]: procedures = 166, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2024-11-19 01:28:26,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:28:26,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:28:26,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:28:26,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:28:26,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:26" (1/1) ... [2024-11-19 01:28:26,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:26" (1/1) ... [2024-11-19 01:28:26,453 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:26" (1/1) ... [2024-11-19 01:28:26,464 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 01:28:26,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:26" (1/1) ... [2024-11-19 01:28:26,465 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:26" (1/1) ... [2024-11-19 01:28:26,469 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:26" (1/1) ... [2024-11-19 01:28:26,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:26" (1/1) ... [2024-11-19 01:28:26,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:26" (1/1) ... [2024-11-19 01:28:26,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:26" (1/1) ... [2024-11-19 01:28:26,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:28:26,478 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:28:26,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:28:26,479 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:28:26,481 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:26" (1/1) ... [2024-11-19 01:28:26,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:28:26,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:28:26,523 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) [2024-11-19 01:28:26,527 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 [2024-11-19 01:28:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-19 01:28:26,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-19 01:28:26,584 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-19 01:28:26,584 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-19 01:28:26,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:28:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:28:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:28:26,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:28:26,588 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 01:28:26,746 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:28:26,749 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:28:26,913 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 01:28:26,913 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:28:26,984 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:28:26,988 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-19 01:28:26,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:28:26 BoogieIcfgContainer [2024-11-19 01:28:26,989 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:28:26,991 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:28:26,992 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:28:26,995 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:28:26,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:28:25" (1/3) ... [2024-11-19 01:28:26,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7b6f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:28:26, skipping insertion in model container [2024-11-19 01:28:26,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:26" (2/3) ... [2024-11-19 01:28:26,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7b6f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:28:26, skipping insertion in model container [2024-11-19 01:28:26,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:28:26" (3/3) ... [2024-11-19 01:28:26,998 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski.i [2024-11-19 01:28:27,014 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:28:27,015 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 01:28:27,015 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 01:28:27,073 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 01:28:27,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 52 transitions, 118 flow [2024-11-19 01:28:27,138 INFO L124 PetriNetUnfolderBase]: 12/50 cut-off events. [2024-11-19 01:28:27,139 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 01:28:27,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 50 events. 12/50 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 47. Up to 3 conditions per place. [2024-11-19 01:28:27,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 52 transitions, 118 flow [2024-11-19 01:28:27,148 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 48 transitions, 105 flow [2024-11-19 01:28:27,155 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:28:27,160 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;@34143369, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:28:27,160 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-19 01:28:27,169 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:28:27,170 INFO L124 PetriNetUnfolderBase]: 10/35 cut-off events. [2024-11-19 01:28:27,170 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:28:27,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:27,171 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:27,171 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:28:27,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:27,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1304711211, now seen corresponding path program 1 times [2024-11-19 01:28:27,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:27,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406116462] [2024-11-19 01:28:27,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:28:27,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:28:27,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:27,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:27,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406116462] [2024-11-19 01:28:27,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406116462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:28:27,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:28:27,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:28:27,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722299377] [2024-11-19 01:28:27,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:28:27,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:28:27,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:27,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:28:27,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:28:27,459 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 52 [2024-11-19 01:28:27,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 48 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-19 01:28:27,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:27,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 52 [2024-11-19 01:28:27,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:27,600 INFO L124 PetriNetUnfolderBase]: 207/453 cut-off events. [2024-11-19 01:28:27,600 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-19 01:28:27,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 453 events. 207/453 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2267 event pairs, 55 based on Foata normal form. 52/459 useless extension candidates. Maximal degree in co-relation 711. Up to 157 conditions per place. [2024-11-19 01:28:27,608 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 23 selfloop transitions, 3 changer transitions 1/55 dead transitions. [2024-11-19 01:28:27,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 55 transitions, 176 flow [2024-11-19 01:28:27,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:28:27,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:28:27,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 122 transitions. [2024-11-19 01:28:27,624 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.782051282051282 [2024-11-19 01:28:27,625 INFO L175 Difference]: Start difference. First operand has 43 places, 48 transitions, 105 flow. Second operand 3 states and 122 transitions. [2024-11-19 01:28:27,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 55 transitions, 176 flow [2024-11-19 01:28:27,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 55 transitions, 169 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 01:28:27,632 INFO L231 Difference]: Finished difference. Result has 44 places, 47 transitions, 116 flow [2024-11-19 01:28:27,634 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=44, PETRI_TRANSITIONS=47} [2024-11-19 01:28:27,639 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2024-11-19 01:28:27,642 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 47 transitions, 116 flow [2024-11-19 01:28:27,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-19 01:28:27,642 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:27,642 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:27,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:28:27,644 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:28:27,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1906219871, now seen corresponding path program 1 times [2024-11-19 01:28:27,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:27,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54019819] [2024-11-19 01:28:27,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:28:27,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:28:27,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:27,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:27,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54019819] [2024-11-19 01:28:27,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54019819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:28:27,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:28:27,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:28:27,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840485535] [2024-11-19 01:28:27,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:28:27,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:28:27,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:27,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:28:27,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:28:27,779 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 52 [2024-11-19 01:28:27,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 47 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-19 01:28:27,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:27,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 52 [2024-11-19 01:28:27,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:27,885 INFO L124 PetriNetUnfolderBase]: 225/474 cut-off events. [2024-11-19 01:28:27,886 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-11-19 01:28:27,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 930 conditions, 474 events. 225/474 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2283 event pairs, 78 based on Foata normal form. 21/459 useless extension candidates. Maximal degree in co-relation 333. Up to 214 conditions per place. [2024-11-19 01:28:27,893 INFO L140 encePairwiseOnDemand]: 48/52 looper letters, 22 selfloop transitions, 2 changer transitions 3/55 dead transitions. [2024-11-19 01:28:27,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 55 transitions, 187 flow [2024-11-19 01:28:27,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:28:27,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:28:27,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-11-19 01:28:27,895 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7628205128205128 [2024-11-19 01:28:27,895 INFO L175 Difference]: Start difference. First operand has 44 places, 47 transitions, 116 flow. Second operand 3 states and 119 transitions. [2024-11-19 01:28:27,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 55 transitions, 187 flow [2024-11-19 01:28:27,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 55 transitions, 181 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:28:27,898 INFO L231 Difference]: Finished difference. Result has 45 places, 47 transitions, 120 flow [2024-11-19 01:28:27,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=45, PETRI_TRANSITIONS=47} [2024-11-19 01:28:27,899 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2024-11-19 01:28:27,899 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 47 transitions, 120 flow [2024-11-19 01:28:27,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-19 01:28:27,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:27,900 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] [2024-11-19 01:28:27,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:28:27,900 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:28:27,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:27,901 INFO L85 PathProgramCache]: Analyzing trace with hash 214226992, now seen corresponding path program 1 times [2024-11-19 01:28:27,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:27,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979850130] [2024-11-19 01:28:27,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:28:27,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:28:27,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:27,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:27,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979850130] [2024-11-19 01:28:27,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979850130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:28:27,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:28:27,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:28:27,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961899675] [2024-11-19 01:28:27,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:28:27,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:28:27,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:27,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:28:27,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:28:28,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 52 [2024-11-19 01:28:28,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 47 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-19 01:28:28,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:28,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 52 [2024-11-19 01:28:28,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:28,115 INFO L124 PetriNetUnfolderBase]: 362/680 cut-off events. [2024-11-19 01:28:28,115 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2024-11-19 01:28:28,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 680 events. 362/680 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3075 event pairs, 152 based on Foata normal form. 43/647 useless extension candidates. Maximal degree in co-relation 1091. Up to 362 conditions per place. [2024-11-19 01:28:28,121 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 29 selfloop transitions, 6 changer transitions 3/59 dead transitions. [2024-11-19 01:28:28,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 59 transitions, 221 flow [2024-11-19 01:28:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:28:28,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:28:28,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-19 01:28:28,126 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7435897435897436 [2024-11-19 01:28:28,126 INFO L175 Difference]: Start difference. First operand has 45 places, 47 transitions, 120 flow. Second operand 3 states and 116 transitions. [2024-11-19 01:28:28,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 59 transitions, 221 flow [2024-11-19 01:28:28,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 59 transitions, 219 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 01:28:28,129 INFO L231 Difference]: Finished difference. Result has 46 places, 50 transitions, 164 flow [2024-11-19 01:28:28,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=46, PETRI_TRANSITIONS=50} [2024-11-19 01:28:28,132 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2024-11-19 01:28:28,133 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 50 transitions, 164 flow [2024-11-19 01:28:28,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-19 01:28:28,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:28,134 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] [2024-11-19 01:28:28,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:28:28,134 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:28:28,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:28,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1849840646, now seen corresponding path program 1 times [2024-11-19 01:28:28,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:28,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193599535] [2024-11-19 01:28:28,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:28:28,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:28:28,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:28,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:28,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193599535] [2024-11-19 01:28:28,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193599535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:28:28,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:28:28,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:28:28,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649669879] [2024-11-19 01:28:28,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:28:28,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:28:28,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:28,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:28:28,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:28:28,200 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 52 [2024-11-19 01:28:28,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 50 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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) [2024-11-19 01:28:28,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:28,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 52 [2024-11-19 01:28:28,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:28,342 INFO L124 PetriNetUnfolderBase]: 445/805 cut-off events. [2024-11-19 01:28:28,342 INFO L125 PetriNetUnfolderBase]: For 411/414 co-relation queries the response was YES. [2024-11-19 01:28:28,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1898 conditions, 805 events. 445/805 cut-off events. For 411/414 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3736 event pairs, 180 based on Foata normal form. 37/802 useless extension candidates. Maximal degree in co-relation 1499. Up to 543 conditions per place. [2024-11-19 01:28:28,346 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 36 selfloop transitions, 5 changer transitions 3/62 dead transitions. [2024-11-19 01:28:28,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 62 transitions, 289 flow [2024-11-19 01:28:28,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:28:28,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:28:28,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2024-11-19 01:28:28,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7115384615384616 [2024-11-19 01:28:28,350 INFO L175 Difference]: Start difference. First operand has 46 places, 50 transitions, 164 flow. Second operand 3 states and 111 transitions. [2024-11-19 01:28:28,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 62 transitions, 289 flow [2024-11-19 01:28:28,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 62 transitions, 279 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:28:28,356 INFO L231 Difference]: Finished difference. Result has 48 places, 51 transitions, 194 flow [2024-11-19 01:28:28,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=48, PETRI_TRANSITIONS=51} [2024-11-19 01:28:28,357 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2024-11-19 01:28:28,359 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 51 transitions, 194 flow [2024-11-19 01:28:28,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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) [2024-11-19 01:28:28,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:28,359 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] [2024-11-19 01:28:28,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:28:28,360 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:28:28,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:28,361 INFO L85 PathProgramCache]: Analyzing trace with hash 34363624, now seen corresponding path program 2 times [2024-11-19 01:28:28,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:28,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340132770] [2024-11-19 01:28:28,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:28:28,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:28,378 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:28:28,381 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:28,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:28,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:28,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340132770] [2024-11-19 01:28:28,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340132770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:28:28,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:28:28,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:28:28,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970626431] [2024-11-19 01:28:28,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:28:28,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:28:28,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:28,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:28:28,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:28:28,439 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 52 [2024-11-19 01:28:28,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 51 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-19 01:28:28,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:28,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 52 [2024-11-19 01:28:28,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:28,540 INFO L124 PetriNetUnfolderBase]: 470/872 cut-off events. [2024-11-19 01:28:28,541 INFO L125 PetriNetUnfolderBase]: For 400/426 co-relation queries the response was YES. [2024-11-19 01:28:28,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1991 conditions, 872 events. 470/872 cut-off events. For 400/426 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4195 event pairs, 153 based on Foata normal form. 44/853 useless extension candidates. Maximal degree in co-relation 1322. Up to 313 conditions per place. [2024-11-19 01:28:28,546 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2024-11-19 01:28:28,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 64 transitions, 309 flow [2024-11-19 01:28:28,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:28:28,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:28:28,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-11-19 01:28:28,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7371794871794872 [2024-11-19 01:28:28,550 INFO L175 Difference]: Start difference. First operand has 48 places, 51 transitions, 194 flow. Second operand 3 states and 115 transitions. [2024-11-19 01:28:28,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 64 transitions, 309 flow [2024-11-19 01:28:28,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 64 transitions, 295 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-19 01:28:28,555 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2024-11-19 01:28:28,556 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2024-11-19 01:28:28,557 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2024-11-19 01:28:28,558 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2024-11-19 01:28:28,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-19 01:28:28,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-11-19 01:28:28,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-19 01:28:28,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-19 01:28:28,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-19 01:28:28,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-11-19 01:28:28,563 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-19 01:28:28,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:28:28,564 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-11-19 01:28:28,569 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 01:28:28,569 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 01:28:28,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:28:28 BasicIcfg [2024-11-19 01:28:28,577 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 01:28:28,578 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 01:28:28,578 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 01:28:28,579 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 01:28:28,579 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:28:26" (3/4) ... [2024-11-19 01:28:28,583 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 01:28:28,587 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-11-19 01:28:28,587 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-11-19 01:28:28,590 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2024-11-19 01:28:28,591 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-19 01:28:28,592 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 01:28:28,592 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 01:28:28,669 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 01:28:28,670 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 01:28:28,670 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 01:28:28,671 INFO L158 Benchmark]: Toolchain (without parser) took 2820.16ms. Allocated memory is still 155.2MB. Free memory was 81.3MB in the beginning and 80.2MB in the end (delta: 1.1MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2024-11-19 01:28:28,672 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 155.2MB. Free memory was 127.2MB in the beginning and 127.0MB in the end (delta: 155.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 01:28:28,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 549.46ms. Allocated memory is still 155.2MB. Free memory was 81.0MB in the beginning and 119.4MB in the end (delta: -38.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-19 01:28:28,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.33ms. Allocated memory is still 155.2MB. Free memory was 119.4MB in the beginning and 117.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 01:28:28,675 INFO L158 Benchmark]: Boogie Preprocessor took 34.64ms. Allocated memory is still 155.2MB. Free memory was 117.3MB in the beginning and 115.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 01:28:28,675 INFO L158 Benchmark]: RCFGBuilder took 510.67ms. Allocated memory is still 155.2MB. Free memory was 115.2MB in the beginning and 97.7MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-19 01:28:28,675 INFO L158 Benchmark]: TraceAbstraction took 1586.66ms. Allocated memory is still 155.2MB. Free memory was 97.0MB in the beginning and 83.4MB in the end (delta: 13.6MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2024-11-19 01:28:28,676 INFO L158 Benchmark]: Witness Printer took 91.84ms. Allocated memory is still 155.2MB. Free memory was 83.4MB in the beginning and 80.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 01:28:28,677 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 155.2MB. Free memory was 127.2MB in the beginning and 127.0MB in the end (delta: 155.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 549.46ms. Allocated memory is still 155.2MB. Free memory was 81.0MB in the beginning and 119.4MB in the end (delta: -38.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.33ms. Allocated memory is still 155.2MB. Free memory was 119.4MB in the beginning and 117.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.64ms. Allocated memory is still 155.2MB. Free memory was 117.3MB in the beginning and 115.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 510.67ms. Allocated memory is still 155.2MB. Free memory was 115.2MB in the beginning and 97.7MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1586.66ms. Allocated memory is still 155.2MB. Free memory was 97.0MB in the beginning and 83.4MB in the end (delta: 13.6MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * Witness Printer took 91.84ms. Allocated memory is still 155.2MB. Free memory was 83.4MB in the beginning and 80.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 760]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 744]: 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 5 procedures, 75 locations, 6 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: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 245 IncrementalHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 43 mSDtfsCounter, 245 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred in iteration=4, InterpolantAutomatonStates: 15, 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, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 01:28:28,710 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