./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i --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/pthread-deagle/circular_buffer_ok.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 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:22:21,053 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:22:21,109 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:22:21,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:22:21,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:22:21,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:22:21,136 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:22:21,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:22:21,137 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:22:21,137 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:22:21,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:22:21,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:22:21,138 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:22:21,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:22:21,138 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:22:21,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:22:21,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:22:21,139 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:22:21,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:22:21,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:22:21,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:22:21,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:22:21,139 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:22:21,139 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:22:21,140 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:22:21,140 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:22:21,140 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:22:21,140 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:22:21,140 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:22:21,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:22:21,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:22:21,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:22:21,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:22:21,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:22:21,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:22:21,141 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:22:21,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:22:21,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:22:21,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:22:21,141 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:22:21,141 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:22:21,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:22:21,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:22:21,141 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 -> 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 [2025-02-08 01:22:21,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:22:21,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:22:21,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:22:21,356 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:22:21,357 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:22:21,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i [2025-02-08 01:22:22,617 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/528877856/27a89025e4134bce8d450999e00059dc/FLAG0217195fb [2025-02-08 01:22:23,001 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:22:23,003 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i [2025-02-08 01:22:23,017 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/528877856/27a89025e4134bce8d450999e00059dc/FLAG0217195fb [2025-02-08 01:22:23,193 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/528877856/27a89025e4134bce8d450999e00059dc [2025-02-08 01:22:23,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:22:23,197 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:22:23,199 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:22:23,199 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:22:23,202 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:22:23,202 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:22:23" (1/1) ... [2025-02-08 01:22:23,203 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d402e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23, skipping insertion in model container [2025-02-08 01:22:23,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:22:23" (1/1) ... [2025-02-08 01:22:23,227 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:22:23,435 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-deagle/circular_buffer_ok.i[30451,30464] [2025-02-08 01:22:23,441 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-deagle/circular_buffer_ok.i[30681,30694] [2025-02-08 01:22:23,447 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-deagle/circular_buffer_ok.i[30979,30992] [2025-02-08 01:22:23,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:22:23,465 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:22:23,503 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-deagle/circular_buffer_ok.i[30451,30464] [2025-02-08 01:22:23,509 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-deagle/circular_buffer_ok.i[30681,30694] [2025-02-08 01:22:23,514 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-deagle/circular_buffer_ok.i[30979,30992] [2025-02-08 01:22:23,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:22:23,541 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:22:23,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23 WrapperNode [2025-02-08 01:22:23,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:22:23,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:22:23,542 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:22:23,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:22:23,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23" (1/1) ... [2025-02-08 01:22:23,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23" (1/1) ... [2025-02-08 01:22:23,566 INFO L138 Inliner]: procedures = 168, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 139 [2025-02-08 01:22:23,566 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:22:23,567 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:22:23,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:22:23,567 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:22:23,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23" (1/1) ... [2025-02-08 01:22:23,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23" (1/1) ... [2025-02-08 01:22:23,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23" (1/1) ... [2025-02-08 01:22:23,583 INFO L175 MemorySlicer]: Split 23 memory accesses to 4 slices as follows [2, 1, 12, 8]. 52 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 1, 10, 8]. The 1 writes are split as follows [0, 0, 1, 0]. [2025-02-08 01:22:23,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23" (1/1) ... [2025-02-08 01:22:23,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23" (1/1) ... [2025-02-08 01:22:23,587 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23" (1/1) ... [2025-02-08 01:22:23,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23" (1/1) ... [2025-02-08 01:22:23,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23" (1/1) ... [2025-02-08 01:22:23,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23" (1/1) ... [2025-02-08 01:22:23,591 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:22:23,592 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:22:23,592 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:22:23,592 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:22:23,592 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23" (1/1) ... [2025-02-08 01:22:23,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:22:23,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:22:23,613 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 01:22:23,616 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 01:22:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:22:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:22:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:22:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:22:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-02-08 01:22:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-02-08 01:22:23,630 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-02-08 01:22:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 01:22:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:22:23,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:22:23,632 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 01:22:23,732 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:22:23,734 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:22:23,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L733: ~send~0 := 0; [2025-02-08 01:22:23,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L731: assume false; [2025-02-08 01:22:23,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L731: assume !false; [2025-02-08 01:22:23,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L731-1: assume false; [2025-02-08 01:22:23,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: ~receive~0 := 1; [2025-02-08 01:22:23,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L732: ~value~0 := ~i~0#1; [2025-02-08 01:22:23,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L730: assume ~i~0#1 == #t~ret4#1; [2025-02-08 01:22:23,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L730: assume !(~i~0#1 == #t~ret4#1); [2025-02-08 01:22:23,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L730-1: havoc #t~ret4#1; [2025-02-08 01:22:23,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L730-2: havoc #t~ret4#1; [2025-02-08 01:22:23,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L730-3: assume { :end_inline_insertLogElement } true;assume -2147483648 <= #t~ret4#1 && #t~ret4#1 <= 2147483647; [2025-02-08 01:22:23,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L730-4: havoc insertLogElement_#in~b#1; [2025-02-08 01:22:23,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L730-5: havoc insertLogElement_~b#1; [2025-02-08 01:22:23,880 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L730-6: #t~ret4#1 := insertLogElement_#res#1; [2025-02-08 01:22:23,911 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L750: ~receive~0 := 0; [2025-02-08 01:22:23,911 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L748: assume #t~ret8#1 == ~value~0; [2025-02-08 01:22:23,911 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L748: assume !(#t~ret8#1 == ~value~0); [2025-02-08 01:22:23,911 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L748-1: havoc #t~ret8#1; [2025-02-08 01:22:23,911 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L748-2: havoc #t~ret8#1; [2025-02-08 01:22:23,911 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L748-3: assume { :end_inline_removeLogElement } true;assume -2147483648 <= #t~ret8#1 && #t~ret8#1 <= 2147483647; [2025-02-08 01:22:23,911 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L748-4: havoc removeLogElement_#t~post1#1, removeLogElement_#t~mem2#1; [2025-02-08 01:22:23,911 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L748-5: #t~ret8#1 := removeLogElement_#res#1; [2025-02-08 01:22:23,911 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L699: havoc removeLogElement_#t~mem2#1; [2025-02-08 01:22:23,911 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L751: ~send~0 := 1; [2025-02-08 01:22:23,912 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L749: assume false; [2025-02-08 01:22:23,912 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L749: assume !false; [2025-02-08 01:22:23,912 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: assume false; [2025-02-08 01:22:23,913 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:22:23,913 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:22:24,010 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:22:24,010 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:22:24,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:22:24 BoogieIcfgContainer [2025-02-08 01:22:24,011 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:22:24,012 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:22:24,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:22:24,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:22:24,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:22:23" (1/3) ... [2025-02-08 01:22:24,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92d5570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:22:24, skipping insertion in model container [2025-02-08 01:22:24,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:22:23" (2/3) ... [2025-02-08 01:22:24,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92d5570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:22:24, skipping insertion in model container [2025-02-08 01:22:24,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:22:24" (3/3) ... [2025-02-08 01:22:24,020 INFO L128 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2025-02-08 01:22:24,030 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:22:24,033 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG circular_buffer_ok.i that has 3 procedures, 32 locations, 1 initial locations, 2 loop locations, and 3 error locations. [2025-02-08 01:22:24,033 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:22:24,084 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 01:22:24,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 35 transitions, 84 flow [2025-02-08 01:22:24,128 INFO L124 PetriNetUnfolderBase]: 4/33 cut-off events. [2025-02-08 01:22:24,130 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 01:22:24,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 33 events. 4/33 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 75 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2025-02-08 01:22:24,132 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 35 transitions, 84 flow [2025-02-08 01:22:24,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 31 transitions, 71 flow [2025-02-08 01:22:24,143 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:22:24,150 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;@41670c76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:22:24,153 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 01:22:24,161 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:22:24,161 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2025-02-08 01:22:24,161 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 01:22:24,161 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:22:24,162 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:22:24,162 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 01:22:24,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:22:24,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1220305873, now seen corresponding path program 1 times [2025-02-08 01:22:24,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:22:24,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026029401] [2025-02-08 01:22:24,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:22:24,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:22:24,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 01:22:24,303 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 01:22:24,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:22:24,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:22:24,622 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 01:22:24,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:22:24,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026029401] [2025-02-08 01:22:24,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026029401] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:22:24,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:22:24,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 01:22:24,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942250345] [2025-02-08 01:22:24,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:22:24,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 01:22:24,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:22:24,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 01:22:24,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 01:22:24,670 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2025-02-08 01:22:24,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 01:22:24,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:22:24,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2025-02-08 01:22:24,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:22:24,775 INFO L124 PetriNetUnfolderBase]: 181/338 cut-off events. [2025-02-08 01:22:24,775 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-02-08 01:22:24,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 338 events. 181/338 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1491 event pairs, 136 based on Foata normal form. 14/310 useless extension candidates. Maximal degree in co-relation 612. Up to 286 conditions per place. [2025-02-08 01:22:24,778 INFO L140 encePairwiseOnDemand]: 33/35 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2025-02-08 01:22:24,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 28 transitions, 105 flow [2025-02-08 01:22:24,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 01:22:24,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 01:22:24,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2025-02-08 01:22:24,787 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5142857142857142 [2025-02-08 01:22:24,787 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 71 flow. Second operand 3 states and 54 transitions. [2025-02-08 01:22:24,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 28 transitions, 105 flow [2025-02-08 01:22:24,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 28 transitions, 100 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 01:22:24,792 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2025-02-08 01:22:24,794 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2025-02-08 01:22:24,797 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2025-02-08 01:22:24,797 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2025-02-08 01:22:24,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 01:22:24,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2025-02-08 01:22:24,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-02-08 01:22:24,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2025-02-08 01:22:24,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2025-02-08 01:22:24,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:22:24,800 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 01:22:24,803 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 01:22:24,806 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:22:24,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:22:24 BasicIcfg [2025-02-08 01:22:24,811 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:22:24,816 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:22:24,816 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:22:24,816 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:22:24,816 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:22:24" (3/4) ... [2025-02-08 01:22:24,819 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:22:24,822 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t1 [2025-02-08 01:22:24,822 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t2 [2025-02-08 01:22:24,825 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2025-02-08 01:22:24,827 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2025-02-08 01:22:24,827 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 01:22:24,827 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 01:22:24,883 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 01:22:24,884 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 01:22:24,884 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 01:22:24,885 INFO L158 Benchmark]: Toolchain (without parser) took 1687.58ms. Allocated memory is still 201.3MB. Free memory was 152.2MB in the beginning and 115.4MB in the end (delta: 36.8MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2025-02-08 01:22:24,885 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 218.1MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:22:24,885 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.03ms. Allocated memory is still 201.3MB. Free memory was 152.2MB in the beginning and 131.4MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 01:22:24,886 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.30ms. Allocated memory is still 201.3MB. Free memory was 131.4MB in the beginning and 129.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:22:24,887 INFO L158 Benchmark]: Boogie Preprocessor took 24.24ms. Allocated memory is still 201.3MB. Free memory was 129.4MB in the beginning and 127.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:22:24,888 INFO L158 Benchmark]: IcfgBuilder took 418.98ms. Allocated memory is still 201.3MB. Free memory was 127.3MB in the beginning and 88.8MB in the end (delta: 38.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-08 01:22:24,888 INFO L158 Benchmark]: TraceAbstraction took 803.52ms. Allocated memory is still 201.3MB. Free memory was 88.4MB in the beginning and 121.6MB in the end (delta: -33.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:22:24,889 INFO L158 Benchmark]: Witness Printer took 68.03ms. Allocated memory is still 201.3MB. Free memory was 121.6MB in the beginning and 115.4MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:22:24,890 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 218.1MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.03ms. Allocated memory is still 201.3MB. Free memory was 152.2MB in the beginning and 131.4MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.30ms. Allocated memory is still 201.3MB. Free memory was 131.4MB in the beginning and 129.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.24ms. Allocated memory is still 201.3MB. Free memory was 129.4MB in the beginning and 127.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 418.98ms. Allocated memory is still 201.3MB. Free memory was 127.3MB in the beginning and 88.8MB in the end (delta: 38.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 803.52ms. Allocated memory is still 201.3MB. Free memory was 88.4MB in the beginning and 121.6MB in the end (delta: -33.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.03ms. Allocated memory is still 201.3MB. Free memory was 121.6MB in the beginning and 115.4MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 714]: 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, 57 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: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 01:22:24,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE