./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe033_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe033_tso.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 03e09f2995f610da86eeaa1f1ee03bc9ee01699bf21a2567d5a1129cd8929582 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 16:31:21,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 16:31:21,793 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 16:31:21,800 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 16:31:21,800 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 16:31:21,827 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 16:31:21,828 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 16:31:21,828 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 16:31:21,829 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 16:31:21,829 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 16:31:21,829 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 16:31:21,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 16:31:21,830 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 16:31:21,830 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 16:31:21,830 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 16:31:21,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 16:31:21,831 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 16:31:21,831 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 16:31:21,832 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 16:31:21,832 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 16:31:21,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 16:31:21,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 16:31:21,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 16:31:21,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 16:31:21,832 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 16:31:21,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 16:31:21,832 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 16:31:21,833 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 16:31:21,833 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 16:31:21,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:31:21,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:31:21,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:31:21,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:31:21,833 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 16:31:21,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:31:21,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:31:21,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:31:21,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:31:21,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 16:31:21,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 16:31:21,834 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 16:31:21,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 16:31:21,834 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 16:31:21,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 16:31:21,834 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 16:31:21,834 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 16:31:21,834 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 16:31:21,834 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 16:31:21,834 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-jdk21/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 -> 03e09f2995f610da86eeaa1f1ee03bc9ee01699bf21a2567d5a1129cd8929582 [2025-01-09 16:31:22,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 16:31:22,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 16:31:22,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 16:31:22,127 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 16:31:22,128 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 16:31:22,129 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe033_tso.i [2025-01-09 16:31:23,504 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b7454dd6f/ef9d761f4fce4f99898fedf6224040ec/FLAG13ca1192c [2025-01-09 16:31:23,903 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 16:31:23,904 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe033_tso.i [2025-01-09 16:31:23,932 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b7454dd6f/ef9d761f4fce4f99898fedf6224040ec/FLAG13ca1192c [2025-01-09 16:31:23,953 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b7454dd6f/ef9d761f4fce4f99898fedf6224040ec [2025-01-09 16:31:23,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 16:31:23,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 16:31:23,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 16:31:23,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 16:31:23,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 16:31:23,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:31:23" (1/1) ... [2025-01-09 16:31:23,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c442c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23, skipping insertion in model container [2025-01-09 16:31:23,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:31:23" (1/1) ... [2025-01-09 16:31:24,005 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 16:31:24,169 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe033_tso.i[945,958] [2025-01-09 16:31:24,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:31:24,370 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 16:31:24,380 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe033_tso.i[945,958] [2025-01-09 16:31:24,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:31:24,453 INFO L204 MainTranslator]: Completed translation [2025-01-09 16:31:24,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24 WrapperNode [2025-01-09 16:31:24,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 16:31:24,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 16:31:24,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 16:31:24,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 16:31:24,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24" (1/1) ... [2025-01-09 16:31:24,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24" (1/1) ... [2025-01-09 16:31:24,499 INFO L138 Inliner]: procedures = 174, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2025-01-09 16:31:24,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 16:31:24,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 16:31:24,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 16:31:24,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 16:31:24,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24" (1/1) ... [2025-01-09 16:31:24,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24" (1/1) ... [2025-01-09 16:31:24,513 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24" (1/1) ... [2025-01-09 16:31:24,535 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]. [2025-01-09 16:31:24,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24" (1/1) ... [2025-01-09 16:31:24,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24" (1/1) ... [2025-01-09 16:31:24,544 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24" (1/1) ... [2025-01-09 16:31:24,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24" (1/1) ... [2025-01-09 16:31:24,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24" (1/1) ... [2025-01-09 16:31:24,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24" (1/1) ... [2025-01-09 16:31:24,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24" (1/1) ... [2025-01-09 16:31:24,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 16:31:24,560 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 16:31:24,560 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 16:31:24,560 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 16:31:24,561 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24" (1/1) ... [2025-01-09 16:31:24,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:31:24,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:31:24,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 16:31:24,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 16:31:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-09 16:31:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 16:31:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-01-09 16:31:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-01-09 16:31:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-01-09 16:31:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-01-09 16:31:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 16:31:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-09 16:31:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 16:31:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 16:31:24,623 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 16:31:24,730 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 16:31:24,733 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 16:31:24,888 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 16:31:24,889 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 16:31:24,960 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 16:31:24,960 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 16:31:24,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:31:24 BoogieIcfgContainer [2025-01-09 16:31:24,961 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 16:31:24,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 16:31:24,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 16:31:24,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 16:31:24,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:31:23" (1/3) ... [2025-01-09 16:31:24,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0d70a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:31:24, skipping insertion in model container [2025-01-09 16:31:24,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:24" (2/3) ... [2025-01-09 16:31:24,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0d70a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:31:24, skipping insertion in model container [2025-01-09 16:31:24,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:31:24" (3/3) ... [2025-01-09 16:31:24,973 INFO L128 eAbstractionObserver]: Analyzing ICFG safe033_tso.i [2025-01-09 16:31:24,987 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 16:31:24,989 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe033_tso.i that has 3 procedures, 30 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 16:31:24,989 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 16:31:25,040 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 16:31:25,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 30 transitions, 68 flow [2025-01-09 16:31:25,105 INFO L124 PetriNetUnfolderBase]: 1/28 cut-off events. [2025-01-09 16:31:25,107 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 16:31:25,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 28 events. 1/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2025-01-09 16:31:25,113 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 30 transitions, 68 flow [2025-01-09 16:31:25,116 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 25 transitions, 56 flow [2025-01-09 16:31:25,122 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 16:31:25,135 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;@3378172, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 16:31:25,135 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-09 16:31:25,154 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 16:31:25,154 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-01-09 16:31:25,154 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 16:31:25,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 16:31:25,155 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:31:25,155 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-09 16:31:25,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:31:25,164 INFO L85 PathProgramCache]: Analyzing trace with hash -151938984, now seen corresponding path program 1 times [2025-01-09 16:31:25,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:31:25,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711363324] [2025-01-09 16:31:25,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:31:25,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:31:25,243 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-09 16:31:25,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-09 16:31:25,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:31:25,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:31:25,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 16:31:25,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:31:25,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711363324] [2025-01-09 16:31:25,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711363324] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:31:25,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:31:25,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 16:31:25,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053483736] [2025-01-09 16:31:25,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:31:25,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 16:31:25,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:31:25,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 16:31:25,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 16:31:25,661 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 30 [2025-01-09 16:31:25,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:31:25,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 16:31:25,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 30 [2025-01-09 16:31:25,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 16:31:25,784 INFO L124 PetriNetUnfolderBase]: 54/153 cut-off events. [2025-01-09 16:31:25,784 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-09 16:31:25,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 153 events. 54/153 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 618 event pairs, 6 based on Foata normal form. 9/156 useless extension candidates. Maximal degree in co-relation 267. Up to 55 conditions per place. [2025-01-09 16:31:25,787 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 17 selfloop transitions, 4 changer transitions 1/35 dead transitions. [2025-01-09 16:31:25,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 123 flow [2025-01-09 16:31:25,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 16:31:25,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-09 16:31:25,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2025-01-09 16:31:25,800 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2025-01-09 16:31:25,802 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 56 flow. Second operand 4 states and 88 transitions. [2025-01-09 16:31:25,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 123 flow [2025-01-09 16:31:25,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 35 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 16:31:25,810 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 80 flow [2025-01-09 16:31:25,812 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2025-01-09 16:31:25,816 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2025-01-09 16:31:25,818 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 80 flow [2025-01-09 16:31:25,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:31:25,819 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 16:31:25,819 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:31:25,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 16:31:25,820 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-09 16:31:25,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:31:25,820 INFO L85 PathProgramCache]: Analyzing trace with hash 528319049, now seen corresponding path program 1 times [2025-01-09 16:31:25,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:31:25,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689924694] [2025-01-09 16:31:25,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:31:25,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:31:25,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-09 16:31:25,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-09 16:31:25,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:31:25,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:31:26,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 16:31:26,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:31:26,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689924694] [2025-01-09 16:31:26,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689924694] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:31:26,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:31:26,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 16:31:26,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563984742] [2025-01-09 16:31:26,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:31:26,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 16:31:26,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:31:26,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 16:31:26,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 16:31:26,023 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 30 [2025-01-09 16:31:26,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:31:26,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 16:31:26,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 30 [2025-01-09 16:31:26,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 16:31:26,122 INFO L124 PetriNetUnfolderBase]: 38/108 cut-off events. [2025-01-09 16:31:26,122 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2025-01-09 16:31:26,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 108 events. 38/108 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 291 event pairs, 2 based on Foata normal form. 8/112 useless extension candidates. Maximal degree in co-relation 241. Up to 28 conditions per place. [2025-01-09 16:31:26,123 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 16 selfloop transitions, 6 changer transitions 1/36 dead transitions. [2025-01-09 16:31:26,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 36 transitions, 149 flow [2025-01-09 16:31:26,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 16:31:26,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-09 16:31:26,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 105 transitions. [2025-01-09 16:31:26,126 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2025-01-09 16:31:26,126 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 80 flow. Second operand 5 states and 105 transitions. [2025-01-09 16:31:26,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 36 transitions, 149 flow [2025-01-09 16:31:26,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 140 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-01-09 16:31:26,128 INFO L231 Difference]: Finished difference. Result has 39 places, 27 transitions, 96 flow [2025-01-09 16:31:26,128 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=96, PETRI_PLACES=39, PETRI_TRANSITIONS=27} [2025-01-09 16:31:26,130 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 7 predicate places. [2025-01-09 16:31:26,130 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 27 transitions, 96 flow [2025-01-09 16:31:26,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:31:26,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 16:31:26,132 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:31:26,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 16:31:26,133 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-09 16:31:26,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:31:26,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2134081524, now seen corresponding path program 1 times [2025-01-09 16:31:26,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:31:26,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943952574] [2025-01-09 16:31:26,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:31:26,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:31:26,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-09 16:31:26,157 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-09 16:31:26,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:31:26,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:31:26,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 16:31:26,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:31:26,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943952574] [2025-01-09 16:31:26,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943952574] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:31:26,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:31:26,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 16:31:26,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540906162] [2025-01-09 16:31:26,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:31:26,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 16:31:26,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:31:26,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 16:31:26,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 16:31:26,343 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 30 [2025-01-09 16:31:26,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 27 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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) [2025-01-09 16:31:26,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 16:31:26,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 30 [2025-01-09 16:31:26,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 16:31:26,502 INFO L124 PetriNetUnfolderBase]: 72/199 cut-off events. [2025-01-09 16:31:26,502 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2025-01-09 16:31:26,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 199 events. 72/199 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 787 event pairs, 29 based on Foata normal form. 4/191 useless extension candidates. Maximal degree in co-relation 435. Up to 85 conditions per place. [2025-01-09 16:31:26,505 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 16 selfloop transitions, 4 changer transitions 8/41 dead transitions. [2025-01-09 16:31:26,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 41 transitions, 188 flow [2025-01-09 16:31:26,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 16:31:26,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-09 16:31:26,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2025-01-09 16:31:26,507 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.66 [2025-01-09 16:31:26,508 INFO L175 Difference]: Start difference. First operand has 39 places, 27 transitions, 96 flow. Second operand 5 states and 99 transitions. [2025-01-09 16:31:26,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 41 transitions, 188 flow [2025-01-09 16:31:26,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 154 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-01-09 16:31:26,512 INFO L231 Difference]: Finished difference. Result has 41 places, 29 transitions, 98 flow [2025-01-09 16:31:26,513 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=98, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2025-01-09 16:31:26,514 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2025-01-09 16:31:26,514 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 98 flow [2025-01-09 16:31:26,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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) [2025-01-09 16:31:26,514 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 16:31:26,514 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:31:26,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 16:31:26,514 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-09 16:31:26,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:31:26,515 INFO L85 PathProgramCache]: Analyzing trace with hash 2066708164, now seen corresponding path program 2 times [2025-01-09 16:31:26,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:31:26,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663234872] [2025-01-09 16:31:26,515 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 16:31:26,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:31:26,526 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 1 equivalence classes. [2025-01-09 16:31:26,537 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-09 16:31:26,538 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 16:31:26,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:31:26,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 16:31:26,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:31:26,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663234872] [2025-01-09 16:31:26,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663234872] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:31:26,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:31:26,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 16:31:26,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493906163] [2025-01-09 16:31:26,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:31:26,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 16:31:26,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:31:26,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 16:31:26,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 16:31:26,691 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-01-09 16:31:26,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 98 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:31:26,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 16:31:26,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-01-09 16:31:26,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 16:31:26,825 INFO L124 PetriNetUnfolderBase]: 75/204 cut-off events. [2025-01-09 16:31:26,825 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2025-01-09 16:31:26,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 204 events. 75/204 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 821 event pairs, 10 based on Foata normal form. 4/197 useless extension candidates. Maximal degree in co-relation 457. Up to 83 conditions per place. [2025-01-09 16:31:26,827 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2025-01-09 16:31:26,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 43 transitions, 200 flow [2025-01-09 16:31:26,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 16:31:26,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-09 16:31:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 123 transitions. [2025-01-09 16:31:26,831 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5857142857142857 [2025-01-09 16:31:26,831 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 98 flow. Second operand 7 states and 123 transitions. [2025-01-09 16:31:26,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 43 transitions, 200 flow [2025-01-09 16:31:26,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 43 transitions, 186 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-01-09 16:31:26,833 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2025-01-09 16:31:26,834 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2025-01-09 16:31:26,834 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 8 predicate places. [2025-01-09 16:31:26,835 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2025-01-09 16:31:26,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:31:26,837 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-01-09 16:31:26,838 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-01-09 16:31:26,838 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-01-09 16:31:26,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 16:31:26,838 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-01-09 16:31:26,841 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-09 16:31:26,841 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 16:31:26,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 04:31:26 BasicIcfg [2025-01-09 16:31:26,846 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 16:31:26,847 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 16:31:26,850 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 16:31:26,850 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 16:31:26,850 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:31:24" (3/4) ... [2025-01-09 16:31:26,852 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 16:31:26,854 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2025-01-09 16:31:26,854 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2025-01-09 16:31:26,857 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-01-09 16:31:26,858 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-01-09 16:31:26,858 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-09 16:31:26,858 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 16:31:26,928 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 16:31:26,928 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 16:31:26,928 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 16:31:26,930 INFO L158 Benchmark]: Toolchain (without parser) took 2971.41ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 57.6MB in the end (delta: 47.5MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2025-01-09 16:31:26,930 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 16:31:26,931 INFO L158 Benchmark]: CACSL2BoogieTranslator took 496.30ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 85.2MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 16:31:26,932 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.75ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 83.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 16:31:26,932 INFO L158 Benchmark]: Boogie Preprocessor took 59.32ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 82.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 16:31:26,932 INFO L158 Benchmark]: RCFGBuilder took 400.68ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 65.6MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 16:31:26,933 INFO L158 Benchmark]: TraceAbstraction took 1883.04ms. Allocated memory is still 142.6MB. Free memory was 64.9MB in the beginning and 62.4MB in the end (delta: 2.4MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2025-01-09 16:31:26,933 INFO L158 Benchmark]: Witness Printer took 81.75ms. Allocated memory is still 142.6MB. Free memory was 62.4MB in the beginning and 57.6MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 16:31:26,935 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 496.30ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 85.2MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.75ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 83.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.32ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 82.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 400.68ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 65.6MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1883.04ms. Allocated memory is still 142.6MB. Free memory was 64.9MB in the beginning and 62.4MB in the end (delta: 2.4MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. * Witness Printer took 81.75ms. Allocated memory is still 142.6MB. Free memory was 62.4MB in the beginning and 57.6MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 47 locations, 3 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: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 211 IncrementalHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 12 mSDtfsCounter, 211 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred 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, 0.8s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 273 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-09 16:31:26,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE