./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_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 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:09:59,332 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:09:59,389 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-30 10:09:59,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:09:59,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:09:59,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:09:59,409 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:09:59,409 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:09:59,409 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:09:59,410 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:09:59,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:09:59,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:09:59,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:09:59,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:09:59,411 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:09:59,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:09:59,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:09:59,411 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:09:59,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:09:59,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:09:59,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:09:59,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:09:59,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:09:59,412 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:09:59,412 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:09:59,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:09:59,412 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:09:59,412 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:09:59,412 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:09:59,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:09:59,413 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:09:59,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:09:59,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:09:59,413 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:09:59,413 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:09:59,413 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:09:59,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:09:59,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:09:59,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:09:59,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:09:59,413 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:09:59,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:09:59,414 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:09:59,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:09:59,414 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:09:59,414 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:09:59,414 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:09:59,414 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 [2025-04-30 10:09:59,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:09:59,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:09:59,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:09:59,634 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:09:59,634 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:09:59,635 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2025-04-30 10:10:00,956 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de38a88f1/08fbc2591be64ba2b73075c58dcb9e1b/FLAG9619beda9 [2025-04-30 10:10:01,227 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:10:01,228 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2025-04-30 10:10:01,242 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de38a88f1/08fbc2591be64ba2b73075c58dcb9e1b/FLAG9619beda9 [2025-04-30 10:10:01,957 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de38a88f1/08fbc2591be64ba2b73075c58dcb9e1b [2025-04-30 10:10:01,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:10:01,960 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:10:01,961 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:10:01,961 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:10:01,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:10:01,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:10:01" (1/1) ... [2025-04-30 10:10:01,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40b45aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:01, skipping insertion in model container [2025-04-30 10:10:01,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:10:01" (1/1) ... [2025-04-30 10:10:01,993 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:10:02,147 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2025-04-30 10:10:02,275 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:10:02,288 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:10:02,308 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2025-04-30 10:10:02,348 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:10:02,376 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:10:02,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02 WrapperNode [2025-04-30 10:10:02,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:10:02,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:10:02,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:10:02,377 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:10:02,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02" (1/1) ... [2025-04-30 10:10:02,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02" (1/1) ... [2025-04-30 10:10:02,410 INFO L138 Inliner]: procedures = 165, calls = 23, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 90 [2025-04-30 10:10:02,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:10:02,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:10:02,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:10:02,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:10:02,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02" (1/1) ... [2025-04-30 10:10:02,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02" (1/1) ... [2025-04-30 10:10:02,421 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02" (1/1) ... [2025-04-30 10:10:02,429 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2025-04-30 10:10:02,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02" (1/1) ... [2025-04-30 10:10:02,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02" (1/1) ... [2025-04-30 10:10:02,432 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02" (1/1) ... [2025-04-30 10:10:02,433 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02" (1/1) ... [2025-04-30 10:10:02,436 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02" (1/1) ... [2025-04-30 10:10:02,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02" (1/1) ... [2025-04-30 10:10:02,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02" (1/1) ... [2025-04-30 10:10:02,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:10:02,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:10:02,445 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:10:02,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:10:02,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02" (1/1) ... [2025-04-30 10:10:02,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:10:02,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:10:02,472 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) [2025-04-30 10:10:02,474 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 [2025-04-30 10:10:02,488 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2025-04-30 10:10:02,488 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2025-04-30 10:10:02,488 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:10:02,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:10:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-30 10:10:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-30 10:10:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:10:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:10:02,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:10:02,489 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:10:02,576 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:10:02,577 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:10:02,694 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:10:02,694 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:10:02,785 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:10:02,786 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-30 10:10:02,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:10:02 BoogieIcfgContainer [2025-04-30 10:10:02,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:10:02,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:10:02,789 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:10:02,792 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:10:02,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:10:01" (1/3) ... [2025-04-30 10:10:02,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c9bcda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:10:02, skipping insertion in model container [2025-04-30 10:10:02,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:10:02" (2/3) ... [2025-04-30 10:10:02,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c9bcda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:10:02, skipping insertion in model container [2025-04-30 10:10:02,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:10:02" (3/3) ... [2025-04-30 10:10:02,795 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2025-04-30 10:10:02,805 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:10:02,806 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_69-refine-protected-loop-interval_true.i that has 2 procedures, 29 locations, 33 edges, 1 initial locations, 3 loop locations, and 2 error locations. [2025-04-30 10:10:02,806 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:10:02,837 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-30 10:10:02,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 34 transitions, 72 flow [2025-04-30 10:10:02,885 INFO L116 PetriNetUnfolderBase]: 6/33 cut-off events. [2025-04-30 10:10:02,886 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:10:02,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 33 events. 6/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2025-04-30 10:10:02,888 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 34 transitions, 72 flow [2025-04-30 10:10:02,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 33 transitions, 69 flow [2025-04-30 10:10:02,898 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:10:02,909 INFO L340 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;@5acaefb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:10:02,909 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-04-30 10:10:02,917 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:10:02,917 INFO L116 PetriNetUnfolderBase]: 4/23 cut-off events. [2025-04-30 10:10:02,917 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:10:02,917 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:10:02,917 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:10:02,918 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2025-04-30 10:10:02,921 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:10:02,921 INFO L85 PathProgramCache]: Analyzing trace with hash 555810132, now seen corresponding path program 1 times [2025-04-30 10:10:02,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:10:02,926 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841546352] [2025-04-30 10:10:02,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:10:02,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:10:02,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-30 10:10:02,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-30 10:10:02,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:10:02,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:10:03,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:10:03,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:10:03,112 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841546352] [2025-04-30 10:10:03,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841546352] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:10:03,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:10:03,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:10:03,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354547047] [2025-04-30 10:10:03,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:10:03,118 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:10:03,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:10:03,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:10:03,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:10:03,148 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2025-04-30 10:10:03,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 33 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-04-30 10:10:03,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:10:03,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2025-04-30 10:10:03,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:10:03,239 INFO L116 PetriNetUnfolderBase]: 106/237 cut-off events. [2025-04-30 10:10:03,239 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:10:03,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 237 events. 106/237 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 878 event pairs, 42 based on Foata normal form. 15/211 useless extension candidates. Maximal degree in co-relation 422. Up to 151 conditions per place. [2025-04-30 10:10:03,243 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 25 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2025-04-30 10:10:03,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 38 transitions, 133 flow [2025-04-30 10:10:03,246 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:10:03,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:10:03,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2025-04-30 10:10:03,256 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6764705882352942 [2025-04-30 10:10:03,258 INFO L175 Difference]: Start difference. First operand has 31 places, 33 transitions, 69 flow. Second operand 3 states and 69 transitions. [2025-04-30 10:10:03,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 38 transitions, 133 flow [2025-04-30 10:10:03,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 38 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:10:03,262 INFO L231 Difference]: Finished difference. Result has 32 places, 31 transitions, 74 flow [2025-04-30 10:10:03,264 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=32, PETRI_TRANSITIONS=31} [2025-04-30 10:10:03,268 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2025-04-30 10:10:03,269 INFO L485 AbstractCegarLoop]: Abstraction has has 32 places, 31 transitions, 74 flow [2025-04-30 10:10:03,269 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-04-30 10:10:03,269 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:10:03,270 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:10:03,270 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:10:03,270 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2025-04-30 10:10:03,271 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:10:03,271 INFO L85 PathProgramCache]: Analyzing trace with hash 555811158, now seen corresponding path program 1 times [2025-04-30 10:10:03,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:10:03,271 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365511496] [2025-04-30 10:10:03,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:10:03,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:10:03,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-30 10:10:03,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-30 10:10:03,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:10:03,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:10:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:10:03,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:10:03,366 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365511496] [2025-04-30 10:10:03,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365511496] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:10:03,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:10:03,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:10:03,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562617505] [2025-04-30 10:10:03,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:10:03,367 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:10:03,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:10:03,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:10:03,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:10:03,383 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 34 [2025-04-30 10:10:03,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 31 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2025-04-30 10:10:03,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:10:03,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 34 [2025-04-30 10:10:03,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:10:03,498 INFO L116 PetriNetUnfolderBase]: 135/274 cut-off events. [2025-04-30 10:10:03,501 INFO L117 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-04-30 10:10:03,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 274 events. 135/274 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 948 event pairs, 43 based on Foata normal form. 0/245 useless extension candidates. Maximal degree in co-relation 556. Up to 144 conditions per place. [2025-04-30 10:10:03,503 INFO L140 encePairwiseOnDemand]: 25/34 looper letters, 32 selfloop transitions, 9 changer transitions 2/49 dead transitions. [2025-04-30 10:10:03,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 49 transitions, 201 flow [2025-04-30 10:10:03,505 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-30 10:10:03,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-30 10:10:03,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 86 transitions. [2025-04-30 10:10:03,506 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5058823529411764 [2025-04-30 10:10:03,506 INFO L175 Difference]: Start difference. First operand has 32 places, 31 transitions, 74 flow. Second operand 5 states and 86 transitions. [2025-04-30 10:10:03,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 49 transitions, 201 flow [2025-04-30 10:10:03,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 49 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:10:03,508 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 122 flow [2025-04-30 10:10:03,509 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=122, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2025-04-30 10:10:03,510 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places. [2025-04-30 10:10:03,510 INFO L485 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 122 flow [2025-04-30 10:10:03,510 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2025-04-30 10:10:03,510 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:10:03,510 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:10:03,510 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:10:03,510 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2025-04-30 10:10:03,511 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:10:03,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1489691999, now seen corresponding path program 1 times [2025-04-30 10:10:03,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:10:03,511 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410864295] [2025-04-30 10:10:03,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:10:03,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:10:03,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-30 10:10:03,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-30 10:10:03,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:10:03,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:10:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:10:03,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:10:03,602 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410864295] [2025-04-30 10:10:03,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410864295] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:10:03,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:10:03,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:10:03,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715831871] [2025-04-30 10:10:03,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:10:03,603 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:10:03,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:10:03,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:10:03,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:10:03,605 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34 [2025-04-30 10:10:03,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 122 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) [2025-04-30 10:10:03,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:10:03,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34 [2025-04-30 10:10:03,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:10:03,684 INFO L116 PetriNetUnfolderBase]: 106/250 cut-off events. [2025-04-30 10:10:03,684 INFO L117 PetriNetUnfolderBase]: For 211/217 co-relation queries the response was YES. [2025-04-30 10:10:03,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 250 events. 106/250 cut-off events. For 211/217 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 801 event pairs, 22 based on Foata normal form. 12/242 useless extension candidates. Maximal degree in co-relation 626. Up to 89 conditions per place. [2025-04-30 10:10:03,688 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 31 selfloop transitions, 5 changer transitions 1/45 dead transitions. [2025-04-30 10:10:03,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 45 transitions, 232 flow [2025-04-30 10:10:03,689 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:10:03,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:10:03,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2025-04-30 10:10:03,702 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6029411764705882 [2025-04-30 10:10:03,702 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 122 flow. Second operand 4 states and 82 transitions. [2025-04-30 10:10:03,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 45 transitions, 232 flow [2025-04-30 10:10:03,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 45 transitions, 229 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:10:03,704 INFO L231 Difference]: Finished difference. Result has 39 places, 31 transitions, 142 flow [2025-04-30 10:10:03,704 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2025-04-30 10:10:03,704 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 8 predicate places. [2025-04-30 10:10:03,704 INFO L485 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 142 flow [2025-04-30 10:10:03,704 INFO L486 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) [2025-04-30 10:10:03,704 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:10:03,707 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:10:03,707 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:10:03,707 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2025-04-30 10:10:03,707 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:10:03,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2143158071, now seen corresponding path program 1 times [2025-04-30 10:10:03,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:10:03,708 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481850645] [2025-04-30 10:10:03,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:10:03,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:10:03,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-04-30 10:10:03,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-04-30 10:10:03,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:10:03,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:10:03,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-30 10:10:03,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:10:03,790 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481850645] [2025-04-30 10:10:03,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481850645] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:10:03,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:10:03,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:10:03,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934232894] [2025-04-30 10:10:03,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:10:03,792 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:10:03,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:10:03,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:10:03,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:10:03,793 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2025-04-30 10:10:03,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2025-04-30 10:10:03,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:10:03,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2025-04-30 10:10:03,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:10:03,837 INFO L116 PetriNetUnfolderBase]: 64/171 cut-off events. [2025-04-30 10:10:03,837 INFO L117 PetriNetUnfolderBase]: For 172/172 co-relation queries the response was YES. [2025-04-30 10:10:03,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 171 events. 64/171 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 504 event pairs, 16 based on Foata normal form. 13/168 useless extension candidates. Maximal degree in co-relation 421. Up to 89 conditions per place. [2025-04-30 10:10:03,839 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 21 selfloop transitions, 4 changer transitions 4/36 dead transitions. [2025-04-30 10:10:03,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 36 transitions, 200 flow [2025-04-30 10:10:03,839 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:10:03,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:10:03,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2025-04-30 10:10:03,840 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6078431372549019 [2025-04-30 10:10:03,840 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 142 flow. Second operand 3 states and 62 transitions. [2025-04-30 10:10:03,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 36 transitions, 200 flow [2025-04-30 10:10:03,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 36 transitions, 188 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-04-30 10:10:03,843 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 112 flow [2025-04-30 10:10:03,844 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2025-04-30 10:10:03,845 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2025-04-30 10:10:03,845 INFO L485 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 112 flow [2025-04-30 10:10:03,845 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2025-04-30 10:10:03,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:10:03,845 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:10:03,845 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:10:03,846 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2025-04-30 10:10:03,846 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:10:03,846 INFO L85 PathProgramCache]: Analyzing trace with hash -193237536, now seen corresponding path program 1 times [2025-04-30 10:10:03,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:10:03,846 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517404719] [2025-04-30 10:10:03,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:10:03,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:10:03,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-04-30 10:10:03,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-30 10:10:03,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:10:03,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:10:03,952 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:10:03,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:10:03,952 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517404719] [2025-04-30 10:10:03,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517404719] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:10:03,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:10:03,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:10:03,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484394322] [2025-04-30 10:10:03,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:10:03,953 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:10:03,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:10:03,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:10:03,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:10:03,961 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34 [2025-04-30 10:10:03,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2025-04-30 10:10:03,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:10:03,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34 [2025-04-30 10:10:03,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:10:04,038 INFO L116 PetriNetUnfolderBase]: 80/197 cut-off events. [2025-04-30 10:10:04,038 INFO L117 PetriNetUnfolderBase]: For 151/151 co-relation queries the response was YES. [2025-04-30 10:10:04,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 197 events. 80/197 cut-off events. For 151/151 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 576 event pairs, 26 based on Foata normal form. 8/184 useless extension candidates. Maximal degree in co-relation 507. Up to 74 conditions per place. [2025-04-30 10:10:04,039 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2025-04-30 10:10:04,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 40 transitions, 224 flow [2025-04-30 10:10:04,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:10:04,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:10:04,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 79 transitions. [2025-04-30 10:10:04,041 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.3872549019607843 [2025-04-30 10:10:04,041 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 112 flow. Second operand 6 states and 79 transitions. [2025-04-30 10:10:04,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 40 transitions, 224 flow [2025-04-30 10:10:04,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 40 transitions, 204 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-30 10:10:04,043 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2025-04-30 10:10:04,043 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2025-04-30 10:10:04,043 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places. [2025-04-30 10:10:04,043 INFO L485 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2025-04-30 10:10:04,043 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2025-04-30 10:10:04,045 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2025-04-30 10:10:04,045 INFO L790 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2025-04-30 10:10:04,045 INFO L790 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2025-04-30 10:10:04,046 INFO L790 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2025-04-30 10:10:04,046 INFO L790 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2025-04-30 10:10:04,046 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-30 10:10:04,046 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-04-30 10:10:04,049 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:10:04,049 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:10:04,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:10:04 BasicIcfg [2025-04-30 10:10:04,054 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:10:04,054 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:10:04,055 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:10:04,055 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:10:04,055 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:10:02" (3/4) ... [2025-04-30 10:10:04,056 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:10:04,059 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2025-04-30 10:10:04,061 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2025-04-30 10:10:04,061 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-04-30 10:10:04,061 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-04-30 10:10:04,061 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-30 10:10:04,112 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:10:04,112 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:10:04,112 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:10:04,113 INFO L158 Benchmark]: Toolchain (without parser) took 2153.11ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 110.8MB in the beginning and 391.6MB in the end (delta: -280.8MB). Peak memory consumption was 70.5MB. Max. memory is 16.1GB. [2025-04-30 10:10:04,113 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:10:04,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.94ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 87.3MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:10:04,113 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.08ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 85.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:10:04,113 INFO L158 Benchmark]: Boogie Preprocessor took 31.29ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 83.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:10:04,114 INFO L158 Benchmark]: RCFGBuilder took 341.86ms. Allocated memory is still 142.6MB. Free memory was 83.3MB in the beginning and 57.7MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:10:04,114 INFO L158 Benchmark]: TraceAbstraction took 1265.26ms. Allocated memory is still 142.6MB. Free memory was 56.8MB in the beginning and 52.3MB in the end (delta: 4.4MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2025-04-30 10:10:04,114 INFO L158 Benchmark]: Witness Printer took 58.05ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 52.3MB in the beginning and 391.6MB in the end (delta: -339.3MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2025-04-30 10:10:04,115 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 415.94ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 87.3MB in the end (delta: 23.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.08ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 85.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.29ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 83.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 341.86ms. Allocated memory is still 142.6MB. Free memory was 83.3MB in the beginning and 57.7MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1265.26ms. Allocated memory is still 142.6MB. Free memory was 56.8MB in the beginning and 52.3MB in the end (delta: 4.4MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Witness Printer took 58.05ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 52.3MB in the beginning and 391.6MB in the end (delta: -339.3MB). Peak memory consumption was 15.5MB. 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 - 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, 50 locations, 59 edges, 5 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: 1.2s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 279 IncrementalHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 6 mSDtfsCounter, 279 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=3, InterpolantAutomatonStates: 21, 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, 0.4s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 163 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 5/5 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-30 10:10:04,129 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