./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread/reorder_5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread/reorder_5-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 41850eb6fd386c6f0f40e76b0dfccb7c973d8ab2a3ee3a82b04526b3663119f9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:37:24,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:37:24,148 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 00:37:24,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:37:24,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:37:24,167 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:37:24,167 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:37:24,167 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:37:24,168 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:37:24,168 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:37:24,168 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:37:24,168 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:37:24,168 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:37:24,168 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:37:24,168 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:37:24,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:37:24,168 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:37:24,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:37:24,169 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:37:24,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:37:24,169 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:37:24,169 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:37:24,169 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:37:24,169 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:37:24,169 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:37:24,169 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:37:24,169 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:37:24,169 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:37:24,170 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:37:24,170 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:37:24,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:37:24,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:37:24,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:37:24,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:37:24,170 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:37:24,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:37:24,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:37:24,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:37:24,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:37:24,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:37:24,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:37:24,171 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 00:37:24,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 00:37:24,171 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:37:24,171 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:37:24,171 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:37:24,171 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:37:24,171 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 41850eb6fd386c6f0f40e76b0dfccb7c973d8ab2a3ee3a82b04526b3663119f9 [2025-01-10 00:37:24,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:37:24,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:37:24,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:37:24,379 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:37:24,379 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:37:24,381 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/reorder_5-2.i [2025-01-10 00:37:25,499 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d4ed65d8e/a1e7b6eabde04e8e8362b81053fb766e/FLAG1b246b5a3 [2025-01-10 00:37:25,834 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:37:25,835 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/reorder_5-2.i [2025-01-10 00:37:25,856 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d4ed65d8e/a1e7b6eabde04e8e8362b81053fb766e/FLAG1b246b5a3 [2025-01-10 00:37:26,086 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d4ed65d8e/a1e7b6eabde04e8e8362b81053fb766e [2025-01-10 00:37:26,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:37:26,090 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:37:26,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:37:26,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:37:26,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:37:26,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c599ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26, skipping insertion in model container [2025-01-10 00:37:26,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,138 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:37:26,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:37:26,655 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:37:26,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:37:26,780 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:37:26,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26 WrapperNode [2025-01-10 00:37:26,782 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:37:26,783 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:37:26,783 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:37:26,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:37:26,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,831 INFO L138 Inliner]: procedures = 371, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 125 [2025-01-10 00:37:26,833 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:37:26,833 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:37:26,833 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:37:26,833 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:37:26,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,843 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,860 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2025-01-10 00:37:26,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,860 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,871 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,873 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,878 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,883 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:37:26,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:37:26,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:37:26,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:37:26,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26" (1/1) ... [2025-01-10 00:37:26,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:37:26,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:37:26,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 00:37:26,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 00:37:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 00:37:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 00:37:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 00:37:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 00:37:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 00:37:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 00:37:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 00:37:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2025-01-10 00:37:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2025-01-10 00:37:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 00:37:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 00:37:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 00:37:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:37:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2025-01-10 00:37:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2025-01-10 00:37:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 00:37:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 00:37:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 00:37:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:37:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:37:26,951 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 00:37:27,062 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:37:27,064 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:37:27,266 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 00:37:27,266 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:37:27,354 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 00:37:27,354 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 00:37:27,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:37:27 BoogieIcfgContainer [2025-01-10 00:37:27,355 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 00:37:27,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 00:37:27,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 00:37:27,359 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 00:37:27,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:37:26" (1/3) ... [2025-01-10 00:37:27,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4de5b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:37:27, skipping insertion in model container [2025-01-10 00:37:27,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:26" (2/3) ... [2025-01-10 00:37:27,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4de5b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:37:27, skipping insertion in model container [2025-01-10 00:37:27,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:37:27" (3/3) ... [2025-01-10 00:37:27,361 INFO L128 eAbstractionObserver]: Analyzing ICFG reorder_5-2.i [2025-01-10 00:37:27,371 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 00:37:27,372 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG reorder_5-2.i that has 3 procedures, 48 locations, 1 initial locations, 4 loop locations, and 12 error locations. [2025-01-10 00:37:27,372 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 00:37:27,403 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-01-10 00:37:27,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 56 transitions, 132 flow [2025-01-10 00:37:27,475 INFO L124 PetriNetUnfolderBase]: 12/131 cut-off events. [2025-01-10 00:37:27,477 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-01-10 00:37:27,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 131 events. 12/131 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 636 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 69. Up to 7 conditions per place. [2025-01-10 00:37:27,480 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 56 transitions, 132 flow [2025-01-10 00:37:27,483 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 56 transitions, 132 flow [2025-01-10 00:37:27,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 00:37:27,496 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=None, 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;@1d857b62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 00:37:27,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-01-10 00:37:27,504 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 00:37:27,504 INFO L124 PetriNetUnfolderBase]: 1/6 cut-off events. [2025-01-10 00:37:27,504 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 00:37:27,504 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:37:27,505 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-01-10 00:37:27,505 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-01-10 00:37:27,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:37:27,517 INFO L85 PathProgramCache]: Analyzing trace with hash 11459847, now seen corresponding path program 1 times [2025-01-10 00:37:27,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:37:27,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983560082] [2025-01-10 00:37:27,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:37:27,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:37:27,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 00:37:27,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 00:37:27,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:37:27,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:37:27,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:37:27,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:37:27,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983560082] [2025-01-10 00:37:27,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983560082] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:37:27,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:37:27,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 00:37:27,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447973882] [2025-01-10 00:37:27,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:37:27,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-10 00:37:27,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:37:27,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-10 00:37:27,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-10 00:37:27,659 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 56 [2025-01-10 00:37:27,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 56 transitions, 132 flow. Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:37:27,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:37:27,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 56 [2025-01-10 00:37:27,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:37:27,733 INFO L124 PetriNetUnfolderBase]: 86/374 cut-off events. [2025-01-10 00:37:27,733 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2025-01-10 00:37:27,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 374 events. 86/374 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2564 event pairs, 71 based on Foata normal form. 24/272 useless extension candidates. Maximal degree in co-relation 373. Up to 190 conditions per place. [2025-01-10 00:37:27,736 INFO L140 encePairwiseOnDemand]: 52/56 looper letters, 24 selfloop transitions, 0 changer transitions 0/52 dead transitions. [2025-01-10 00:37:27,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 52 transitions, 172 flow [2025-01-10 00:37:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-10 00:37:27,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-10 00:37:27,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 84 transitions. [2025-01-10 00:37:27,744 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2025-01-10 00:37:27,745 INFO L175 Difference]: Start difference. First operand has 54 places, 56 transitions, 132 flow. Second operand 2 states and 84 transitions. [2025-01-10 00:37:27,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 52 transitions, 172 flow [2025-01-10 00:37:27,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 00:37:27,749 INFO L231 Difference]: Finished difference. Result has 53 places, 52 transitions, 124 flow [2025-01-10 00:37:27,751 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=124, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2025-01-10 00:37:27,753 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -1 predicate places. [2025-01-10 00:37:27,753 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 52 transitions, 124 flow [2025-01-10 00:37:27,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:37:27,753 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:37:27,753 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-01-10 00:37:27,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 00:37:27,754 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-01-10 00:37:27,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:37:27,754 INFO L85 PathProgramCache]: Analyzing trace with hash 355326894, now seen corresponding path program 1 times [2025-01-10 00:37:27,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:37:27,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245057159] [2025-01-10 00:37:27,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:37:27,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:37:27,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 00:37:27,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 00:37:27,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:37:27,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:37:27,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:37:27,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:37:27,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245057159] [2025-01-10 00:37:27,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245057159] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:37:27,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:37:27,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:37:27,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88572800] [2025-01-10 00:37:27,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:37:27,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:37:27,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:37:27,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:37:27,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:37:27,885 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 56 [2025-01-10 00:37:27,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:37:27,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:37:27,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 56 [2025-01-10 00:37:27,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:37:27,986 INFO L124 PetriNetUnfolderBase]: 97/367 cut-off events. [2025-01-10 00:37:27,986 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2025-01-10 00:37:27,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 367 events. 97/367 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2479 event pairs, 65 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 604. Up to 168 conditions per place. [2025-01-10 00:37:27,989 INFO L140 encePairwiseOnDemand]: 52/56 looper letters, 27 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2025-01-10 00:37:27,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 184 flow [2025-01-10 00:37:27,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:37:27,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 00:37:27,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2025-01-10 00:37:27,991 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6130952380952381 [2025-01-10 00:37:27,991 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 124 flow. Second operand 3 states and 103 transitions. [2025-01-10 00:37:27,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 184 flow [2025-01-10 00:37:27,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 53 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 00:37:27,993 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 124 flow [2025-01-10 00:37:27,994 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2025-01-10 00:37:27,994 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -1 predicate places. [2025-01-10 00:37:27,994 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 124 flow [2025-01-10 00:37:27,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:37:27,995 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:37:27,995 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-01-10 00:37:27,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 00:37:27,995 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-01-10 00:37:27,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:37:27,995 INFO L85 PathProgramCache]: Analyzing trace with hash 355326895, now seen corresponding path program 1 times [2025-01-10 00:37:27,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:37:27,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869309683] [2025-01-10 00:37:27,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:37:27,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:37:28,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 00:37:28,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 00:37:28,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:37:28,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:37:28,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:37:28,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:37:28,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869309683] [2025-01-10 00:37:28,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869309683] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:37:28,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:37:28,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:37:28,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576611055] [2025-01-10 00:37:28,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:37:28,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:37:28,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:37:28,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:37:28,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:37:28,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 56 [2025-01-10 00:37:28,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 124 flow. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:37:28,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:37:28,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 56 [2025-01-10 00:37:28,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:37:28,474 INFO L124 PetriNetUnfolderBase]: 184/694 cut-off events. [2025-01-10 00:37:28,474 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2025-01-10 00:37:28,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 694 events. 184/694 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5500 event pairs, 124 based on Foata normal form. 1/520 useless extension candidates. Maximal degree in co-relation 1169. Up to 215 conditions per place. [2025-01-10 00:37:28,478 INFO L140 encePairwiseOnDemand]: 50/56 looper letters, 47 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2025-01-10 00:37:28,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 75 transitions, 298 flow [2025-01-10 00:37:28,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:37:28,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 00:37:28,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2025-01-10 00:37:28,479 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7008928571428571 [2025-01-10 00:37:28,479 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 124 flow. Second operand 4 states and 157 transitions. [2025-01-10 00:37:28,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 75 transitions, 298 flow [2025-01-10 00:37:28,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 75 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 00:37:28,482 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 146 flow [2025-01-10 00:37:28,482 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2025-01-10 00:37:28,483 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2025-01-10 00:37:28,483 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 146 flow [2025-01-10 00:37:28,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:37:28,483 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:37:28,483 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:37:28,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 00:37:28,483 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-01-10 00:37:28,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:37:28,484 INFO L85 PathProgramCache]: Analyzing trace with hash 620261267, now seen corresponding path program 1 times [2025-01-10 00:37:28,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:37:28,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427311232] [2025-01-10 00:37:28,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:37:28,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:37:28,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 00:37:28,496 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 00:37:28,496 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:37:28,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 00:37:28,497 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 00:37:28,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 00:37:28,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 00:37:28,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:37:28,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 00:37:28,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 00:37:28,516 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-10 00:37:28,517 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2025-01-10 00:37:28,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (13 of 15 remaining) [2025-01-10 00:37:28,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX (12 of 15 remaining) [2025-01-10 00:37:28,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (11 of 15 remaining) [2025-01-10 00:37:28,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2025-01-10 00:37:28,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2025-01-10 00:37:28,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2025-01-10 00:37:28,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2025-01-10 00:37:28,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2025-01-10 00:37:28,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2025-01-10 00:37:28,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2025-01-10 00:37:28,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (3 of 15 remaining) [2025-01-10 00:37:28,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2025-01-10 00:37:28,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2025-01-10 00:37:28,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2025-01-10 00:37:28,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 00:37:28,520 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-01-10 00:37:28,537 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 00:37:28,537 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 00:37:28,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:37:28 BasicIcfg [2025-01-10 00:37:28,540 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 00:37:28,541 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 00:37:28,541 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 00:37:28,541 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 00:37:28,541 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:37:27" (3/4) ... [2025-01-10 00:37:28,542 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-10 00:37:28,543 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 00:37:28,543 INFO L158 Benchmark]: Toolchain (without parser) took 2453.19ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 91.2MB in the end (delta: 12.7MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2025-01-10 00:37:28,544 INFO L158 Benchmark]: CDTParser took 1.40ms. Allocated memory is still 201.3MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:37:28,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 690.63ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 65.1MB in the end (delta: 37.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-10 00:37:28,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.94ms. Allocated memory is still 142.6MB. Free memory was 65.1MB in the beginning and 63.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:37:28,544 INFO L158 Benchmark]: Boogie Preprocessor took 51.26ms. Allocated memory is still 142.6MB. Free memory was 63.1MB in the beginning and 61.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:37:28,544 INFO L158 Benchmark]: RCFGBuilder took 469.86ms. Allocated memory is still 142.6MB. Free memory was 61.2MB in the beginning and 101.3MB in the end (delta: -40.1MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2025-01-10 00:37:28,544 INFO L158 Benchmark]: TraceAbstraction took 1184.13ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 91.2MB in the end (delta: 9.3MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2025-01-10 00:37:28,544 INFO L158 Benchmark]: Witness Printer took 2.24ms. Allocated memory is still 142.6MB. Free memory was 91.2MB in the beginning and 91.2MB in the end (delta: 24.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:37:28,546 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.40ms. Allocated memory is still 201.3MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 690.63ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 65.1MB in the end (delta: 37.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.94ms. Allocated memory is still 142.6MB. Free memory was 65.1MB in the beginning and 63.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.26ms. Allocated memory is still 142.6MB. Free memory was 63.1MB in the beginning and 61.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 469.86ms. Allocated memory is still 142.6MB. Free memory was 61.2MB in the beginning and 101.3MB in the end (delta: -40.1MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1184.13ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 91.2MB in the end (delta: 9.3MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Witness Printer took 2.24ms. Allocated memory is still 142.6MB. Free memory was 91.2MB in the beginning and 91.2MB in the end (delta: 24.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: overapproximation of sscanf at line 1245, overapproximation of sscanf at line 1246. Possible FailurePath: [L1229] static int iSet = 4; [L1230] static int iCheck = 1; [L1231] static int a = 0; [L1232] static int b = 0; [L1239] int i, err; VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1240] COND TRUE argc != 1 VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1241] COND FALSE !(argc != 3) VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1245] argv[1] [L1246] argv[2] [L1249] pthread_t setPool[iSet]; [L1250] pthread_t checkPool[iCheck]; [L1251] i = 0 VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, checkPool={4:0}, i=0, iCheck=0, iSet=1073741824, setPool={5:0}] [L1251] COND TRUE i < iSet - UnprovableResult [Line: 11]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1245]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1258]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1252]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 63 locations, 15 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: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 287 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 15 mSDtfsCounter, 287 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 73 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-10 00:37:28,558 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread/reorder_5-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 41850eb6fd386c6f0f40e76b0dfccb7c973d8ab2a3ee3a82b04526b3663119f9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:37:30,605 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:37:30,690 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-01-10 00:37:30,694 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:37:30,694 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:37:30,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:37:30,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:37:30,718 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:37:30,719 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:37:30,719 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:37:30,719 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:37:30,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:37:30,720 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:37:30,720 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:37:30,720 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:37:30,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:37:30,721 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:37:30,721 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:37:30,721 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:37:30,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:37:30,721 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:37:30,721 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:37:30,722 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:37:30,722 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:37:30,722 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:37:30,722 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-10 00:37:30,722 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-10 00:37:30,722 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:37:30,722 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:37:30,722 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:37:30,722 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:37:30,722 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:37:30,722 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:37:30,722 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:37:30,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:37:30,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:37:30,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:37:30,723 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:37:30,723 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:37:30,723 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:37:30,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:37:30,723 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:37:30,723 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:37:30,724 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-10 00:37:30,724 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-10 00:37:30,724 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:37:30,724 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:37:30,724 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:37:30,724 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:37:30,724 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 41850eb6fd386c6f0f40e76b0dfccb7c973d8ab2a3ee3a82b04526b3663119f9 [2025-01-10 00:37:31,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:37:31,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:37:31,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:37:31,049 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:37:31,050 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:37:31,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/reorder_5-2.i [2025-01-10 00:37:32,497 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9126da935/14904050a3ba4091a20fe427829c8cfd/FLAG469f72cbc [2025-01-10 00:37:32,509 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException: Cannot invoke "String.equalsIgnoreCase(String)" because "kindStr" is null at org.eclipse.cdt.internal.core.model.PathEntry.kindFromString(PathEntry.java:80) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.decodePathEntry(DefaultPathEntryStore.java:127) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.getRawPathEntries(DefaultPathEntryStore.java:97) at org.eclipse.cdt.internal.core.model.PathEntryStoreProxy.getRawPathEntries(PathEntryStoreProxy.java:102) at org.eclipse.cdt.internal.core.model.PathEntryManager.getRawPathEntries(PathEntryManager.java:666) at org.eclipse.cdt.core.model.CoreModel.getRawPathEntries(CoreModel.java:937) at org.eclipse.cdt.core.model.CoreModel.oldIsScannerInformationEmpty(CoreModel.java:1307) at org.eclipse.cdt.core.model.CoreModel.isScannerInformationEmpty(CoreModel.java:1252) at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.isFileBuildConfigured(ProjectIndexerInputAdapter.java:267) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.isRequiredInIndex(AbstractIndexerTask.java:748) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.extractFiles(AbstractIndexerTask.java:667) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.runTask(AbstractIndexerTask.java:558) at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.run(PDOMIndexerTask.java:164) at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:160) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-01-10 00:37:32,742 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:37:32,742 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/reorder_5-2.i [2025-01-10 00:37:32,760 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9126da935/14904050a3ba4091a20fe427829c8cfd/FLAG469f72cbc [2025-01-10 00:37:32,774 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9126da935/14904050a3ba4091a20fe427829c8cfd [2025-01-10 00:37:32,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:37:32,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:37:32,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:37:32,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:37:32,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:37:32,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:37:32" (1/1) ... [2025-01-10 00:37:32,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c734adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:32, skipping insertion in model container [2025-01-10 00:37:32,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:37:32" (1/1) ... [2025-01-10 00:37:32,825 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:37:33,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:37:33,181 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:37:33,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:37:33,306 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:37:33,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33 WrapperNode [2025-01-10 00:37:33,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:37:33,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:37:33,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:37:33,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:37:33,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33" (1/1) ... [2025-01-10 00:37:33,330 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33" (1/1) ... [2025-01-10 00:37:33,343 INFO L138 Inliner]: procedures = 374, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 124 [2025-01-10 00:37:33,344 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:37:33,344 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:37:33,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:37:33,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:37:33,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33" (1/1) ... [2025-01-10 00:37:33,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33" (1/1) ... [2025-01-10 00:37:33,353 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33" (1/1) ... [2025-01-10 00:37:33,364 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2025-01-10 00:37:33,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33" (1/1) ... [2025-01-10 00:37:33,365 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33" (1/1) ... [2025-01-10 00:37:33,370 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33" (1/1) ... [2025-01-10 00:37:33,371 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33" (1/1) ... [2025-01-10 00:37:33,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33" (1/1) ... [2025-01-10 00:37:33,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33" (1/1) ... [2025-01-10 00:37:33,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33" (1/1) ... [2025-01-10 00:37:33,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:37:33,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:37:33,377 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:37:33,377 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:37:33,378 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33" (1/1) ... [2025-01-10 00:37:33,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:37:33,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:37:33,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 00:37:33,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 00:37:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-10 00:37:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-10 00:37:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-10 00:37:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 00:37:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 00:37:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 00:37:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-10 00:37:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-10 00:37:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-10 00:37:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-10 00:37:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-10 00:37:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-10 00:37:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 00:37:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2025-01-10 00:37:33,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2025-01-10 00:37:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:37:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2025-01-10 00:37:33,421 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2025-01-10 00:37:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:37:33,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:37:33,422 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 00:37:33,547 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:37:33,549 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:37:33,870 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 00:37:33,871 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:37:34,008 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 00:37:34,009 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 00:37:34,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:37:34 BoogieIcfgContainer [2025-01-10 00:37:34,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 00:37:34,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 00:37:34,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 00:37:34,014 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 00:37:34,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:37:32" (1/3) ... [2025-01-10 00:37:34,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da61517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:37:34, skipping insertion in model container [2025-01-10 00:37:34,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:37:33" (2/3) ... [2025-01-10 00:37:34,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da61517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:37:34, skipping insertion in model container [2025-01-10 00:37:34,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:37:34" (3/3) ... [2025-01-10 00:37:34,017 INFO L128 eAbstractionObserver]: Analyzing ICFG reorder_5-2.i [2025-01-10 00:37:34,029 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 00:37:34,030 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG reorder_5-2.i that has 3 procedures, 48 locations, 1 initial locations, 4 loop locations, and 12 error locations. [2025-01-10 00:37:34,031 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 00:37:34,082 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-01-10 00:37:34,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 56 transitions, 132 flow [2025-01-10 00:37:34,162 INFO L124 PetriNetUnfolderBase]: 12/131 cut-off events. [2025-01-10 00:37:34,165 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-01-10 00:37:34,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 131 events. 12/131 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 633 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 69. Up to 7 conditions per place. [2025-01-10 00:37:34,168 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 56 transitions, 132 flow [2025-01-10 00:37:34,171 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 56 transitions, 132 flow [2025-01-10 00:37:34,176 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 00:37:34,184 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=None, 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;@20f30477, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 00:37:34,185 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-01-10 00:37:34,189 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 00:37:34,189 INFO L124 PetriNetUnfolderBase]: 1/6 cut-off events. [2025-01-10 00:37:34,189 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 00:37:34,189 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:37:34,190 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-01-10 00:37:34,190 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-01-10 00:37:34,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:37:34,194 INFO L85 PathProgramCache]: Analyzing trace with hash 11398279, now seen corresponding path program 1 times [2025-01-10 00:37:34,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:37:34,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [799066264] [2025-01-10 00:37:34,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:37:34,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:37:34,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:37:34,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:37:34,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 00:37:34,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 00:37:34,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 00:37:34,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:37:34,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:37:34,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-10 00:37:34,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:37:34,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:37:34,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:37:34,322 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:37:34,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799066264] [2025-01-10 00:37:34,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799066264] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:37:34,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:37:34,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 00:37:34,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338043199] [2025-01-10 00:37:34,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:37:34,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-10 00:37:34,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:37:34,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-10 00:37:34,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-10 00:37:34,346 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 56 [2025-01-10 00:37:34,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 56 transitions, 132 flow. Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:37:34,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:37:34,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 56 [2025-01-10 00:37:34,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:37:34,435 INFO L124 PetriNetUnfolderBase]: 86/374 cut-off events. [2025-01-10 00:37:34,435 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2025-01-10 00:37:34,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 374 events. 86/374 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2543 event pairs, 71 based on Foata normal form. 24/272 useless extension candidates. Maximal degree in co-relation 373. Up to 190 conditions per place. [2025-01-10 00:37:34,438 INFO L140 encePairwiseOnDemand]: 52/56 looper letters, 24 selfloop transitions, 0 changer transitions 0/52 dead transitions. [2025-01-10 00:37:34,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 52 transitions, 172 flow [2025-01-10 00:37:34,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-10 00:37:34,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-10 00:37:34,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 84 transitions. [2025-01-10 00:37:34,446 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2025-01-10 00:37:34,447 INFO L175 Difference]: Start difference. First operand has 54 places, 56 transitions, 132 flow. Second operand 2 states and 84 transitions. [2025-01-10 00:37:34,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 52 transitions, 172 flow [2025-01-10 00:37:34,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 00:37:34,452 INFO L231 Difference]: Finished difference. Result has 53 places, 52 transitions, 124 flow [2025-01-10 00:37:34,454 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=124, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2025-01-10 00:37:34,456 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -1 predicate places. [2025-01-10 00:37:34,456 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 52 transitions, 124 flow [2025-01-10 00:37:34,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:37:34,457 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:37:34,457 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-01-10 00:37:34,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 00:37:34,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:37:34,658 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-01-10 00:37:34,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:37:34,658 INFO L85 PathProgramCache]: Analyzing trace with hash 353418284, now seen corresponding path program 1 times [2025-01-10 00:37:34,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:37:34,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [650633786] [2025-01-10 00:37:34,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:37:34,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:37:34,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:37:34,661 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:37:34,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 00:37:34,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 00:37:34,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 00:37:34,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:37:34,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:37:34,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:37:34,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:37:34,759 INFO L349 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2025-01-10 00:37:34,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 15 [2025-01-10 00:37:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:37:34,771 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:37:34,771 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:37:34,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650633786] [2025-01-10 00:37:34,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650633786] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:37:34,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:37:34,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:37:34,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491063232] [2025-01-10 00:37:34,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:37:34,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:37:34,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:37:34,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:37:34,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:37:34,800 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 56 [2025-01-10 00:37:34,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:37:34,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:37:34,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 56 [2025-01-10 00:37:34,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:37:34,875 INFO L124 PetriNetUnfolderBase]: 97/370 cut-off events. [2025-01-10 00:37:34,875 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2025-01-10 00:37:34,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 370 events. 97/370 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2506 event pairs, 62 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 607. Up to 168 conditions per place. [2025-01-10 00:37:34,878 INFO L140 encePairwiseOnDemand]: 52/56 looper letters, 27 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2025-01-10 00:37:34,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 184 flow [2025-01-10 00:37:34,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:37:34,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 00:37:34,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2025-01-10 00:37:34,880 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6130952380952381 [2025-01-10 00:37:34,880 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 124 flow. Second operand 3 states and 103 transitions. [2025-01-10 00:37:34,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 184 flow [2025-01-10 00:37:34,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 53 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 00:37:34,882 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 124 flow [2025-01-10 00:37:34,882 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2025-01-10 00:37:34,883 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -1 predicate places. [2025-01-10 00:37:34,883 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 124 flow [2025-01-10 00:37:34,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:37:34,883 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:37:34,883 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-01-10 00:37:34,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 00:37:35,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:37:35,084 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-01-10 00:37:35,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:37:35,085 INFO L85 PathProgramCache]: Analyzing trace with hash 353418285, now seen corresponding path program 1 times [2025-01-10 00:37:35,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:37:35,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772197621] [2025-01-10 00:37:35,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:37:35,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:37:35,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:37:35,089 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:37:35,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 00:37:35,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 00:37:35,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 00:37:35,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:37:35,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:37:35,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 00:37:35,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:37:35,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:37:35,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2025-01-10 00:37:35,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2025-01-10 00:37:35,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:37:35,283 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:37:35,283 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:37:35,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772197621] [2025-01-10 00:37:35,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772197621] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:37:35,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:37:35,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:37:35,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751874018] [2025-01-10 00:37:35,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:37:35,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:37:35,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:37:35,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:37:35,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:37:35,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 56 [2025-01-10 00:37:35,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:37:35,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:37:35,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 56 [2025-01-10 00:37:35,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:37:35,514 INFO L124 PetriNetUnfolderBase]: 184/694 cut-off events. [2025-01-10 00:37:35,514 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2025-01-10 00:37:35,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 694 events. 184/694 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5515 event pairs, 159 based on Foata normal form. 1/520 useless extension candidates. Maximal degree in co-relation 1169. Up to 215 conditions per place. [2025-01-10 00:37:35,518 INFO L140 encePairwiseOnDemand]: 50/56 looper letters, 47 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2025-01-10 00:37:35,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 75 transitions, 298 flow [2025-01-10 00:37:35,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:37:35,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 00:37:35,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2025-01-10 00:37:35,519 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7008928571428571 [2025-01-10 00:37:35,519 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 124 flow. Second operand 4 states and 157 transitions. [2025-01-10 00:37:35,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 75 transitions, 298 flow [2025-01-10 00:37:35,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 75 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 00:37:35,522 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 146 flow [2025-01-10 00:37:35,522 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2025-01-10 00:37:35,522 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2025-01-10 00:37:35,522 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 146 flow [2025-01-10 00:37:35,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:37:35,523 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:37:35,523 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:37:35,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-10 00:37:35,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:37:35,727 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2025-01-10 00:37:35,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:37:35,728 INFO L85 PathProgramCache]: Analyzing trace with hash -404566381, now seen corresponding path program 1 times [2025-01-10 00:37:35,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:37:35,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1553665842] [2025-01-10 00:37:35,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:37:35,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:37:35,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:37:35,731 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:37:35,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 00:37:35,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 00:37:35,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 00:37:35,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:37:35,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 00:37:35,785 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 00:37:35,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 00:37:35,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 00:37:35,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:37:35,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 00:37:35,808 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-01-10 00:37:35,808 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-10 00:37:35,809 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2025-01-10 00:37:35,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (13 of 15 remaining) [2025-01-10 00:37:35,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX (12 of 15 remaining) [2025-01-10 00:37:35,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (11 of 15 remaining) [2025-01-10 00:37:35,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2025-01-10 00:37:35,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2025-01-10 00:37:35,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2025-01-10 00:37:35,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2025-01-10 00:37:35,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2025-01-10 00:37:35,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2025-01-10 00:37:35,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2025-01-10 00:37:35,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (3 of 15 remaining) [2025-01-10 00:37:35,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2025-01-10 00:37:35,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2025-01-10 00:37:35,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2025-01-10 00:37:35,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 00:37:36,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:37:36,015 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-01-10 00:37:36,050 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 00:37:36,054 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 00:37:36,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:37:36 BasicIcfg [2025-01-10 00:37:36,061 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 00:37:36,062 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 00:37:36,062 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 00:37:36,062 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 00:37:36,062 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:37:34" (3/4) ... [2025-01-10 00:37:36,063 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-10 00:37:36,066 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 00:37:36,067 INFO L158 Benchmark]: Toolchain (without parser) took 3289.32ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 86.7MB in the end (delta: 3.7MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2025-01-10 00:37:36,067 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:37:36,068 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.50ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 51.0MB in the end (delta: 39.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-10 00:37:36,070 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.68ms. Allocated memory is still 117.4MB. Free memory was 51.0MB in the beginning and 48.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:37:36,071 INFO L158 Benchmark]: Boogie Preprocessor took 32.45ms. Allocated memory is still 117.4MB. Free memory was 48.5MB in the beginning and 46.2MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:37:36,071 INFO L158 Benchmark]: RCFGBuilder took 632.24ms. Allocated memory is still 117.4MB. Free memory was 46.2MB in the beginning and 62.8MB in the end (delta: -16.6MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2025-01-10 00:37:36,071 INFO L158 Benchmark]: TraceAbstraction took 2050.86ms. Allocated memory is still 117.4MB. Free memory was 62.0MB in the beginning and 86.7MB in the end (delta: -24.7MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2025-01-10 00:37:36,071 INFO L158 Benchmark]: Witness Printer took 4.57ms. Allocated memory is still 117.4MB. Free memory was 86.7MB in the beginning and 86.7MB in the end (delta: 8.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:37:36,072 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 83.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 528.50ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 51.0MB in the end (delta: 39.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.68ms. Allocated memory is still 117.4MB. Free memory was 51.0MB in the beginning and 48.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.45ms. Allocated memory is still 117.4MB. Free memory was 48.5MB in the beginning and 46.2MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 632.24ms. Allocated memory is still 117.4MB. Free memory was 46.2MB in the beginning and 62.8MB in the end (delta: -16.6MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2050.86ms. Allocated memory is still 117.4MB. Free memory was 62.0MB in the beginning and 86.7MB in the end (delta: -24.7MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * Witness Printer took 4.57ms. Allocated memory is still 117.4MB. Free memory was 86.7MB in the beginning and 86.7MB in the end (delta: 8.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: overapproximation of sscanf at line 1246, overapproximation of sscanf at line 1245. Possible FailurePath: [L1229] static int iSet = 4; [L1230] static int iCheck = 1; [L1231] static int a = 0; [L1232] static int b = 0; [L1239] int i, err; VAL [\old(argc)=3, \old(argv)={0:0}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1240] COND TRUE argc != 1 VAL [\old(argc)=3, \old(argv)={0:0}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1241] COND FALSE !(argc != 3) VAL [\old(argc)=3, \old(argv)={0:0}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1245] argv[1] [L1246] argv[2] [L1249] pthread_t setPool[iSet]; [L1250] pthread_t checkPool[iCheck]; [L1251] i = 0 VAL [\old(argc)=3, \old(argv)={0:0}, a=0, argc=3, b=0, checkPool={5:0}, i=0, iCheck=0, iSet=1073741824, setPool={7:0}] [L1251] COND TRUE i < iSet - UnprovableResult [Line: 11]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1245]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1252]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1258]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 63 locations, 15 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: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 205 IncrementalHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 11 mSDtfsCounter, 205 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 3 NumberOfNonLiveVariables, 109 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-10 00:37:36,088 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: UNKNOWN: Overapproximated counterexample