./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d 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/weaver/chl-simpl-str-trans.wvr.c -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 f7b74cf7a2419cab3ab4545eb4bb4cb738b0dd565da7b17a0ca0e4253475f1b6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:14:02,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:14:02,064 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:14:02,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:14:02,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:14:02,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:14:02,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:14:02,092 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:14:02,092 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:14:02,092 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:14:02,092 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:14:02,092 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:14:02,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:14:02,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:14:02,092 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:14:02,093 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:14:02,093 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:14:02,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:14:02,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:14:02,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:14:02,094 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:14:02,094 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:14:02,094 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:14:02,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:14:02,094 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:14:02,094 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:14:02,094 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:14:02,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:14:02,094 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 -> f7b74cf7a2419cab3ab4545eb4bb4cb738b0dd565da7b17a0ca0e4253475f1b6 [2025-02-08 01:14:02,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:14:02,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:14:02,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:14:02,359 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:14:02,359 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:14:02,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2025-02-08 01:14:03,554 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/451afd865/46b7b0fd670c47649ed886f9c6067b2d/FLAGf6fa93238 [2025-02-08 01:14:03,773 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:14:03,773 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2025-02-08 01:14:03,779 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/451afd865/46b7b0fd670c47649ed886f9c6067b2d/FLAGf6fa93238 [2025-02-08 01:14:03,790 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/451afd865/46b7b0fd670c47649ed886f9c6067b2d [2025-02-08 01:14:03,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:14:03,793 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:14:03,794 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:14:03,794 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:14:03,797 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:14:03,797 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:14:03" (1/1) ... [2025-02-08 01:14:03,798 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fbdc19e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03, skipping insertion in model container [2025-02-08 01:14:03,798 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:14:03" (1/1) ... [2025-02-08 01:14:03,808 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:14:03,935 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/weaver/chl-simpl-str-trans.wvr.c[2553,2566] [2025-02-08 01:14:03,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:14:03,948 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:14:03,967 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/weaver/chl-simpl-str-trans.wvr.c[2553,2566] [2025-02-08 01:14:03,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:14:03,986 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:14:03,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03 WrapperNode [2025-02-08 01:14:03,988 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:14:03,989 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:14:03,989 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:14:03,989 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:14:03,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03" (1/1) ... [2025-02-08 01:14:04,002 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03" (1/1) ... [2025-02-08 01:14:04,027 INFO L138 Inliner]: procedures = 22, calls = 15, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 153 [2025-02-08 01:14:04,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:14:04,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:14:04,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:14:04,029 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:14:04,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03" (1/1) ... [2025-02-08 01:14:04,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03" (1/1) ... [2025-02-08 01:14:04,036 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03" (1/1) ... [2025-02-08 01:14:04,052 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]. [2025-02-08 01:14:04,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03" (1/1) ... [2025-02-08 01:14:04,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03" (1/1) ... [2025-02-08 01:14:04,056 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03" (1/1) ... [2025-02-08 01:14:04,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03" (1/1) ... [2025-02-08 01:14:04,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03" (1/1) ... [2025-02-08 01:14:04,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03" (1/1) ... [2025-02-08 01:14:04,059 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:14:04,060 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:14:04,060 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:14:04,060 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:14:04,060 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03" (1/1) ... [2025-02-08 01:14:04,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:14:04,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:14:04,083 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) [2025-02-08 01:14:04,086 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 [2025-02-08 01:14:04,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:14:04,101 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 01:14:04,102 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 01:14:04,102 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 01:14:04,102 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 01:14:04,102 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 01:14:04,102 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 01:14:04,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:14:04,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:14:04,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:14:04,104 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 01:14:04,180 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:14:04,182 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:14:04,261 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-5: #t~ite2#1 := #t~ret1#1; [2025-02-08 01:14:04,261 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-6: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret1#1 && #t~ret1#1 <= 2147483647; [2025-02-08 01:14:04,261 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-7: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 01:14:04,261 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-8: havoc minus_~a#1, minus_~b#1; [2025-02-08 01:14:04,261 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-9: #t~ret1#1 := minus_#res#1; [2025-02-08 01:14:04,302 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-5: #t~ite5#1 := #t~ret4#1; [2025-02-08 01:14:04,302 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-6: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret4#1 && #t~ret4#1 <= 2147483647; [2025-02-08 01:14:04,302 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-7: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 01:14:04,302 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-8: havoc minus_~a#1, minus_~b#1; [2025-02-08 01:14:04,302 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-9: #t~ret4#1 := minus_#res#1; [2025-02-08 01:14:04,342 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-5: #t~ite8#1 := #t~ret7#1; [2025-02-08 01:14:04,344 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-6: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret7#1 && #t~ret7#1 <= 2147483647; [2025-02-08 01:14:04,344 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-7: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 01:14:04,344 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-8: havoc minus_~a#1, minus_~b#1; [2025-02-08 01:14:04,344 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-9: #t~ret7#1 := minus_#res#1; [2025-02-08 01:14:04,423 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:14:04,424 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:14:04,572 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:14:04,572 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:14:04,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:14:04 BoogieIcfgContainer [2025-02-08 01:14:04,573 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:14:04,574 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:14:04,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:14:04,578 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:14:04,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:14:03" (1/3) ... [2025-02-08 01:14:04,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb12022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:14:04, skipping insertion in model container [2025-02-08 01:14:04,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:14:03" (2/3) ... [2025-02-08 01:14:04,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb12022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:14:04, skipping insertion in model container [2025-02-08 01:14:04,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:14:04" (3/3) ... [2025-02-08 01:14:04,579 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2025-02-08 01:14:04,590 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:14:04,591 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-simpl-str-trans.wvr.c that has 4 procedures, 32 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:14:04,592 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:14:04,644 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 01:14:04,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 34 transitions, 89 flow [2025-02-08 01:14:04,695 INFO L124 PetriNetUnfolderBase]: 3/31 cut-off events. [2025-02-08 01:14:04,700 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 01:14:04,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 31 events. 3/31 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2025-02-08 01:14:04,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 34 transitions, 89 flow [2025-02-08 01:14:04,705 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 30 transitions, 78 flow [2025-02-08 01:14:04,713 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:14:04,723 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;@13655733, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:14:04,723 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 01:14:04,760 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:14:04,763 INFO L124 PetriNetUnfolderBase]: 3/29 cut-off events. [2025-02-08 01:14:04,763 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 01:14:04,763 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:14:04,763 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] [2025-02-08 01:14:04,764 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:14:04,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:14:04,768 INFO L85 PathProgramCache]: Analyzing trace with hash -802040496, now seen corresponding path program 1 times [2025-02-08 01:14:04,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:14:04,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976121979] [2025-02-08 01:14:04,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:14:04,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:14:04,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 01:14:04,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 01:14:04,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:14:04,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:14:05,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:14:05,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:14:05,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976121979] [2025-02-08 01:14:05,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976121979] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:14:05,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:14:05,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:14:05,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876490667] [2025-02-08 01:14:05,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:14:05,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:14:05,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:14:05,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:14:05,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:14:05,133 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 34 [2025-02-08 01:14:05,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:14:05,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:14:05,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 34 [2025-02-08 01:14:05,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:14:05,510 INFO L124 PetriNetUnfolderBase]: 893/1370 cut-off events. [2025-02-08 01:14:05,510 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2025-02-08 01:14:05,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2879 conditions, 1370 events. 893/1370 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 7333 event pairs, 269 based on Foata normal form. 1/1084 useless extension candidates. Maximal degree in co-relation 2473. Up to 442 conditions per place. [2025-02-08 01:14:05,515 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 46 selfloop transitions, 5 changer transitions 32/89 dead transitions. [2025-02-08 01:14:05,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 89 transitions, 401 flow [2025-02-08 01:14:05,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:14:05,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:14:05,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 141 transitions. [2025-02-08 01:14:05,523 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6911764705882353 [2025-02-08 01:14:05,524 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 78 flow. Second operand 6 states and 141 transitions. [2025-02-08 01:14:05,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 89 transitions, 401 flow [2025-02-08 01:14:05,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 89 transitions, 363 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-08 01:14:05,530 INFO L231 Difference]: Finished difference. Result has 38 places, 28 transitions, 82 flow [2025-02-08 01:14:05,531 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=82, PETRI_PLACES=38, PETRI_TRANSITIONS=28} [2025-02-08 01:14:05,534 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2025-02-08 01:14:05,536 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 82 flow [2025-02-08 01:14:05,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:14:05,536 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:14:05,536 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] [2025-02-08 01:14:05,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:14:05,536 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:14:05,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:14:05,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2038072404, now seen corresponding path program 2 times [2025-02-08 01:14:05,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:14:05,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005862480] [2025-02-08 01:14:05,537 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:14:05,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:14:05,547 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 1 equivalence classes. [2025-02-08 01:14:05,565 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 01:14:05,565 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:14:05,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:14:05,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:14:05,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:14:05,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005862480] [2025-02-08 01:14:05,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005862480] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:14:05,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:14:05,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:14:05,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704869239] [2025-02-08 01:14:05,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:14:05,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:14:05,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:14:05,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:14:05,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:14:05,708 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2025-02-08 01:14:05,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-02-08 01:14:05,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:14:05,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2025-02-08 01:14:05,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:14:05,869 INFO L124 PetriNetUnfolderBase]: 295/506 cut-off events. [2025-02-08 01:14:05,870 INFO L125 PetriNetUnfolderBase]: For 103/108 co-relation queries the response was YES. [2025-02-08 01:14:05,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 506 events. 295/506 cut-off events. For 103/108 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2280 event pairs, 50 based on Foata normal form. 1/483 useless extension candidates. Maximal degree in co-relation 654. Up to 206 conditions per place. [2025-02-08 01:14:05,874 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 36 selfloop transitions, 4 changer transitions 12/59 dead transitions. [2025-02-08 01:14:05,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 59 transitions, 259 flow [2025-02-08 01:14:05,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:14:05,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:14:05,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2025-02-08 01:14:05,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5490196078431373 [2025-02-08 01:14:05,876 INFO L175 Difference]: Start difference. First operand has 38 places, 28 transitions, 82 flow. Second operand 6 states and 112 transitions. [2025-02-08 01:14:05,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 59 transitions, 259 flow [2025-02-08 01:14:05,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 59 transitions, 255 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-08 01:14:05,878 INFO L231 Difference]: Finished difference. Result has 39 places, 27 transitions, 84 flow [2025-02-08 01:14:05,879 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=84, PETRI_PLACES=39, PETRI_TRANSITIONS=27} [2025-02-08 01:14:05,879 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 2 predicate places. [2025-02-08 01:14:05,880 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 27 transitions, 84 flow [2025-02-08 01:14:05,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-02-08 01:14:05,880 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:14:05,880 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] [2025-02-08 01:14:05,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:14:05,881 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:14:05,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:14:05,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1624354260, now seen corresponding path program 3 times [2025-02-08 01:14:05,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:14:05,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930390953] [2025-02-08 01:14:05,882 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 01:14:05,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:14:05,888 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 21 statements into 1 equivalence classes. [2025-02-08 01:14:05,891 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 01:14:05,891 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 01:14:05,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:14:05,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:14:05,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:14:05,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930390953] [2025-02-08 01:14:05,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930390953] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:14:05,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:14:05,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:14:05,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759045842] [2025-02-08 01:14:05,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:14:05,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:14:05,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:14:05,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:14:05,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:14:05,985 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 34 [2025-02-08 01:14:05,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 27 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:14:05,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:14:05,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 34 [2025-02-08 01:14:05,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:14:06,116 INFO L124 PetriNetUnfolderBase]: 330/557 cut-off events. [2025-02-08 01:14:06,116 INFO L125 PetriNetUnfolderBase]: For 254/254 co-relation queries the response was YES. [2025-02-08 01:14:06,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1365 conditions, 557 events. 330/557 cut-off events. For 254/254 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2543 event pairs, 47 based on Foata normal form. 1/544 useless extension candidates. Maximal degree in co-relation 1351. Up to 161 conditions per place. [2025-02-08 01:14:06,118 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 47 selfloop transitions, 5 changer transitions 14/72 dead transitions. [2025-02-08 01:14:06,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 72 transitions, 331 flow [2025-02-08 01:14:06,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:14:06,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:14:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 121 transitions. [2025-02-08 01:14:06,121 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5931372549019608 [2025-02-08 01:14:06,121 INFO L175 Difference]: Start difference. First operand has 39 places, 27 transitions, 84 flow. Second operand 6 states and 121 transitions. [2025-02-08 01:14:06,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 72 transitions, 331 flow [2025-02-08 01:14:06,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 72 transitions, 317 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-02-08 01:14:06,123 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 94 flow [2025-02-08 01:14:06,123 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=94, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2025-02-08 01:14:06,123 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 2 predicate places. [2025-02-08 01:14:06,123 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 94 flow [2025-02-08 01:14:06,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:14:06,125 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:14:06,125 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] [2025-02-08 01:14:06,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:14:06,125 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:14:06,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:14:06,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1148161208, now seen corresponding path program 1 times [2025-02-08 01:14:06,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:14:06,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831665380] [2025-02-08 01:14:06,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:14:06,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:14:06,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 01:14:06,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 01:14:06,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:14:06,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:14:06,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:14:06,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:14:06,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831665380] [2025-02-08 01:14:06,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831665380] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:14:06,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:14:06,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:14:06,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900882945] [2025-02-08 01:14:06,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:14:06,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:14:06,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:14:06,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:14:06,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:14:06,170 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2025-02-08 01:14:06,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2025-02-08 01:14:06,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:14:06,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2025-02-08 01:14:06,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:14:06,240 INFO L124 PetriNetUnfolderBase]: 222/375 cut-off events. [2025-02-08 01:14:06,241 INFO L125 PetriNetUnfolderBase]: For 226/236 co-relation queries the response was YES. [2025-02-08 01:14:06,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 924 conditions, 375 events. 222/375 cut-off events. For 226/236 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1534 event pairs, 45 based on Foata normal form. 2/349 useless extension candidates. Maximal degree in co-relation 586. Up to 124 conditions per place. [2025-02-08 01:14:06,241 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2025-02-08 01:14:06,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 44 transitions, 216 flow [2025-02-08 01:14:06,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:14:06,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 01:14:06,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2025-02-08 01:14:06,242 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5588235294117647 [2025-02-08 01:14:06,242 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 94 flow. Second operand 4 states and 76 transitions. [2025-02-08 01:14:06,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 44 transitions, 216 flow [2025-02-08 01:14:06,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 44 transitions, 206 flow, removed 3 selfloop flow, removed 1 redundant places. [2025-02-08 01:14:06,243 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2025-02-08 01:14:06,243 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2025-02-08 01:14:06,244 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2025-02-08 01:14:06,244 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2025-02-08 01:14:06,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2025-02-08 01:14:06,246 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-02-08 01:14:06,246 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-02-08 01:14:06,246 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-02-08 01:14:06,246 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-02-08 01:14:06,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:14:06,247 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1] [2025-02-08 01:14:06,249 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 01:14:06,249 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:14:06,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:14:06 BasicIcfg [2025-02-08 01:14:06,252 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:14:06,252 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:14:06,252 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:14:06,253 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:14:06,253 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:14:04" (3/4) ... [2025-02-08 01:14:06,254 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:14:06,256 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 01:14:06,256 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 01:14:06,256 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 01:14:06,259 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2025-02-08 01:14:06,259 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-02-08 01:14:06,259 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-02-08 01:14:06,259 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 01:14:06,306 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 01:14:06,306 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 01:14:06,306 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 01:14:06,307 INFO L158 Benchmark]: Toolchain (without parser) took 2514.22ms. Allocated memory is still 142.6MB. Free memory was 110.6MB in the beginning and 45.6MB in the end (delta: 65.0MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2025-02-08 01:14:06,307 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 127.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:14:06,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.80ms. Allocated memory is still 142.6MB. Free memory was 110.6MB in the beginning and 98.6MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:14:06,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.54ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 97.2MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:14:06,308 INFO L158 Benchmark]: Boogie Preprocessor took 31.17ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 95.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:14:06,308 INFO L158 Benchmark]: IcfgBuilder took 513.05ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 54.3MB in the end (delta: 40.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-08 01:14:06,308 INFO L158 Benchmark]: TraceAbstraction took 1677.50ms. Allocated memory is still 142.6MB. Free memory was 53.3MB in the beginning and 51.6MB in the end (delta: 1.8MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2025-02-08 01:14:06,308 INFO L158 Benchmark]: Witness Printer took 54.13ms. Allocated memory is still 142.6MB. Free memory was 51.6MB in the beginning and 45.6MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:14:06,309 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 127.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.80ms. Allocated memory is still 142.6MB. Free memory was 110.6MB in the beginning and 98.6MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.54ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 97.2MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.17ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 95.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 513.05ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 54.3MB in the end (delta: 40.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1677.50ms. Allocated memory is still 142.6MB. Free memory was 53.3MB in the beginning and 51.6MB in the end (delta: 1.8MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Witness Printer took 54.13ms. Allocated memory is still 142.6MB. Free memory was 51.6MB in the beginning and 45.6MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 53 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 161 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 480 IncrementalHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 2 mSDtfsCounter, 480 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=3, InterpolantAutomatonStates: 22, 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, 0.5s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 337 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! [2025-02-08 01:14:06,323 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