./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-1_2-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-1_2-join.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 fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:27:38,941 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:27:39,001 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:27:39,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:27:39,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:27:39,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:27:39,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:27:39,024 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:27:39,024 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:27:39,024 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:27:39,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:27:39,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:27:39,025 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:27:39,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:27:39,025 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:27:39,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:27:39,025 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:27:39,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:27:39,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:27:39,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:27:39,025 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:27:39,026 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:27:39,026 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:27:39,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:27:39,026 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:27:39,026 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:27:39,026 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:27:39,026 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:27:39,026 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:27:39,026 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:27:39,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:27:39,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:27:39,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:27:39,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:27:39,027 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:27:39,027 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:27:39,027 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:27:39,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:27:39,027 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:27:39,027 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:27:39,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:27:39,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:27:39,027 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 -> fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f [2025-02-08 08:27:39,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:27:39,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:27:39,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:27:39,272 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:27:39,272 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:27:39,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-1_2-join.i [2025-02-08 08:27:40,454 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/65d4a9774/45cbbd97755c47f9a3bdf82d75bfddc7/FLAG8ee4d38ca [2025-02-08 08:27:40,807 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:27:40,808 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_2-join.i [2025-02-08 08:27:40,828 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/65d4a9774/45cbbd97755c47f9a3bdf82d75bfddc7/FLAG8ee4d38ca [2025-02-08 08:27:40,842 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/65d4a9774/45cbbd97755c47f9a3bdf82d75bfddc7 [2025-02-08 08:27:40,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:27:40,845 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:27:40,846 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:27:40,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:27:40,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:27:40,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:27:40" (1/1) ... [2025-02-08 08:27:40,850 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@575fa61a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:40, skipping insertion in model container [2025-02-08 08:27:40,852 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:27:40" (1/1) ... [2025-02-08 08:27:40,881 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:27:41,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:27:41,409 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:27:41,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:27:41,523 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:27:41,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:41 WrapperNode [2025-02-08 08:27:41,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:27:41,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:27:41,524 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:27:41,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:27:41,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:41" (1/1) ... [2025-02-08 08:27:41,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:41" (1/1) ... [2025-02-08 08:27:41,556 INFO L138 Inliner]: procedures = 483, calls = 31, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 93 [2025-02-08 08:27:41,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:27:41,557 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:27:41,557 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:27:41,557 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:27:41,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:41" (1/1) ... [2025-02-08 08:27:41,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:41" (1/1) ... [2025-02-08 08:27:41,569 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:41" (1/1) ... [2025-02-08 08:27:41,576 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 1, 5]. 63 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5]. The 1 writes are split as follows [0, 1, 0]. [2025-02-08 08:27:41,577 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:41" (1/1) ... [2025-02-08 08:27:41,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:41" (1/1) ... [2025-02-08 08:27:41,584 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:41" (1/1) ... [2025-02-08 08:27:41,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:41" (1/1) ... [2025-02-08 08:27:41,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:41" (1/1) ... [2025-02-08 08:27:41,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:41" (1/1) ... [2025-02-08 08:27:41,590 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:27:41,591 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:27:41,591 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:27:41,591 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:27:41,592 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:41" (1/1) ... [2025-02-08 08:27:41,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:27:41,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:27:41,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:27:41,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:27:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:27:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 08:27:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:27:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 08:27:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:27:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 08:27:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 08:27:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 08:27:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:27:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:27:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 08:27:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 08:27:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 08:27:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 08:27:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:27:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 08:27:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 08:27:41,640 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:27:41,837 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:27:41,838 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:27:41,996 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1717: havoc ldv_assert_#in~expression#1;assume { :end_inline_ldv_assert } true; [2025-02-08 08:27:41,996 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1717-1: havoc ldv_assert_~expression#1; [2025-02-08 08:27:41,996 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1718: [2025-02-08 08:27:41,996 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1719-1: module_init_#res#1 := 0; [2025-02-08 08:27:41,997 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:27:41,997 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:27:42,089 WARN L149 AtomicBlockAnalyzer]: Unexpected successor node of atomic block begin: L1695-10 is not an error location. [2025-02-08 08:27:42,090 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:27:42,091 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:27:42,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:27:42 BoogieIcfgContainer [2025-02-08 08:27:42,092 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:27:42,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:27:42,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:27:42,097 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:27:42,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:27:40" (1/3) ... [2025-02-08 08:27:42,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a04cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:27:42, skipping insertion in model container [2025-02-08 08:27:42,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:41" (2/3) ... [2025-02-08 08:27:42,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a04cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:27:42, skipping insertion in model container [2025-02-08 08:27:42,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:27:42" (3/3) ... [2025-02-08 08:27:42,100 INFO L128 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2025-02-08 08:27:42,111 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:27:42,113 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-1_2-join.i that has 2 procedures, 42 locations, 1 initial locations, 0 loop locations, and 7 error locations. [2025-02-08 08:27:42,113 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:27:42,143 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 08:27:42,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 47 transitions, 101 flow [2025-02-08 08:27:42,187 INFO L124 PetriNetUnfolderBase]: 4/32 cut-off events. [2025-02-08 08:27:42,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:27:42,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 32 events. 4/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 54 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2025-02-08 08:27:42,190 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 47 transitions, 101 flow [2025-02-08 08:27:42,192 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 24 transitions, 51 flow [2025-02-08 08:27:42,197 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:27:42,204 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;@64f487fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:27:42,205 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-08 08:27:42,207 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:27:42,207 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2025-02-08 08:27:42,208 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:27:42,208 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:27:42,208 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-08 08:27:42,208 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:27:42,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:27:42,212 INFO L85 PathProgramCache]: Analyzing trace with hash 8783687, now seen corresponding path program 1 times [2025-02-08 08:27:42,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:27:42,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815214262] [2025-02-08 08:27:42,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:27:42,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:27:42,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 08:27:42,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 08:27:42,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:27:42,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:27:42,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:27:42,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:27:42,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815214262] [2025-02-08 08:27:42,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815214262] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:27:42,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:27:42,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:27:42,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129386930] [2025-02-08 08:27:42,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:27:42,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:27:42,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:27:42,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:27:42,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:27:42,504 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 47 [2025-02-08 08:27:42,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 24 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:27:42,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:27:42,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 47 [2025-02-08 08:27:42,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:27:42,541 INFO L124 PetriNetUnfolderBase]: 12/39 cut-off events. [2025-02-08 08:27:42,543 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:27:42,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 39 events. 12/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 12 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 64. Up to 35 conditions per place. [2025-02-08 08:27:42,544 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 10 selfloop transitions, 2 changer transitions 1/15 dead transitions. [2025-02-08 08:27:42,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 15 transitions, 59 flow [2025-02-08 08:27:42,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:27:42,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:27:42,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2025-02-08 08:27:42,555 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3617021276595745 [2025-02-08 08:27:42,556 INFO L175 Difference]: Start difference. First operand has 26 places, 24 transitions, 51 flow. Second operand 3 states and 51 transitions. [2025-02-08 08:27:42,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 15 transitions, 59 flow [2025-02-08 08:27:42,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 15 transitions, 58 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:27:42,560 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 34 flow [2025-02-08 08:27:42,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=34, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2025-02-08 08:27:42,565 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, -6 predicate places. [2025-02-08 08:27:42,567 INFO L471 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 34 flow [2025-02-08 08:27:42,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:27:42,567 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:27:42,567 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:27:42,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:27:42,567 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:27:42,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:27:42,568 INFO L85 PathProgramCache]: Analyzing trace with hash -2114052082, now seen corresponding path program 1 times [2025-02-08 08:27:42,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:27:42,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752549342] [2025-02-08 08:27:42,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:27:42,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:27:42,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 08:27:42,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 08:27:42,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:27:42,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:27:42,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:27:42,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:27:42,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752549342] [2025-02-08 08:27:42,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752549342] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:27:42,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:27:42,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:27:42,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310511623] [2025-02-08 08:27:42,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:27:42,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:27:42,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:27:42,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:27:42,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:27:42,732 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 08:27:42,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 34 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:27:42,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:27:42,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 08:27:42,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:27:42,761 INFO L124 PetriNetUnfolderBase]: 9/36 cut-off events. [2025-02-08 08:27:42,763 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 08:27:42,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 36 events. 9/36 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 67 event pairs, 6 based on Foata normal form. 5/40 useless extension candidates. Maximal degree in co-relation 66. Up to 26 conditions per place. [2025-02-08 08:27:42,763 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 10 selfloop transitions, 2 changer transitions 3/18 dead transitions. [2025-02-08 08:27:42,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 18 transitions, 72 flow [2025-02-08 08:27:42,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:27:42,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:27:42,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2025-02-08 08:27:42,766 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4326241134751773 [2025-02-08 08:27:42,766 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 34 flow. Second operand 3 states and 61 transitions. [2025-02-08 08:27:42,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 18 transitions, 72 flow [2025-02-08 08:27:42,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 18 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:27:42,767 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 38 flow [2025-02-08 08:27:42,767 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=38, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2025-02-08 08:27:42,768 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, -6 predicate places. [2025-02-08 08:27:42,769 INFO L471 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 38 flow [2025-02-08 08:27:42,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:27:42,769 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:27:42,769 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:27:42,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:27:42,770 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:27:42,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:27:42,770 INFO L85 PathProgramCache]: Analyzing trace with hash -433104822, now seen corresponding path program 1 times [2025-02-08 08:27:42,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:27:42,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817139450] [2025-02-08 08:27:42,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:27:42,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:27:42,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 08:27:42,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 08:27:42,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:27:42,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 08:27:42,790 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 08:27:42,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 08:27:42,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 08:27:42,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:27:42,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 08:27:42,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 08:27:42,810 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 08:27:42,811 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2025-02-08 08:27:42,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2025-02-08 08:27:42,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2025-02-08 08:27:42,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2025-02-08 08:27:42,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2025-02-08 08:27:42,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2025-02-08 08:27:42,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2025-02-08 08:27:42,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2025-02-08 08:27:42,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:27:42,813 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 08:27:42,826 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:27:42,826 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:27:42,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:27:42 BasicIcfg [2025-02-08 08:27:42,830 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:27:42,830 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:27:42,830 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:27:42,830 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:27:42,831 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:27:42" (3/4) ... [2025-02-08 08:27:42,832 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 08:27:42,833 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:27:42,833 INFO L158 Benchmark]: Toolchain (without parser) took 1988.27ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 76.5MB in the end (delta: 27.7MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2025-02-08 08:27:42,833 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:27:42,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 678.21ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 50.4MB in the end (delta: 53.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-08 08:27:42,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.03ms. Allocated memory is still 142.6MB. Free memory was 50.4MB in the beginning and 47.8MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:27:42,834 INFO L158 Benchmark]: Boogie Preprocessor took 33.45ms. Allocated memory is still 142.6MB. Free memory was 47.8MB in the beginning and 44.6MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:27:42,834 INFO L158 Benchmark]: IcfgBuilder took 501.24ms. Allocated memory is still 142.6MB. Free memory was 44.6MB in the beginning and 81.6MB in the end (delta: -37.0MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2025-02-08 08:27:42,834 INFO L158 Benchmark]: TraceAbstraction took 736.03ms. Allocated memory is still 142.6MB. Free memory was 80.9MB in the beginning and 76.5MB in the end (delta: 4.4MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2025-02-08 08:27:42,834 INFO L158 Benchmark]: Witness Printer took 2.50ms. Allocated memory is still 142.6MB. Free memory was 76.5MB in the beginning and 76.5MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:27:42,835 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 678.21ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 50.4MB in the end (delta: 53.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.03ms. Allocated memory is still 142.6MB. Free memory was 50.4MB in the beginning and 47.8MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.45ms. Allocated memory is still 142.6MB. Free memory was 47.8MB in the beginning and 44.6MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 501.24ms. Allocated memory is still 142.6MB. Free memory was 44.6MB in the beginning and 81.6MB in the end (delta: -37.0MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * TraceAbstraction took 736.03ms. Allocated memory is still 142.6MB. Free memory was 80.9MB in the beginning and 76.5MB in the end (delta: 4.4MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Witness Printer took 2.50ms. Allocated memory is still 142.6MB. Free memory was 76.5MB in the beginning and 76.5MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1693. Possible FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={3:0}, pdev=1, t1=0] [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [\old(arg)={0:0}, mutex={3:0}, pdev=1, t1=-1] [L1714] 0 pdev = 2 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=2, t1=-1] [L1702] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] CALL 0 reach_error() [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_2-join.c", 10, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: 1733]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1712]: 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 3 procedures, 50 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2025-02-08 08:27:42,850 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 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/ldv-races/race-1_2-join.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 fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:27:44,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:27:45,057 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-08 08:27:45,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:27:45,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:27:45,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:27:45,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:27:45,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:27:45,081 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:27:45,081 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:27:45,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:27:45,082 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:27:45,082 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:27:45,082 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:27:45,082 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:27:45,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:27:45,082 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:27:45,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:27:45,082 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:27:45,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:27:45,082 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:27:45,082 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:27:45,082 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:27:45,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:27:45,083 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:27:45,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:27:45,083 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:27:45,084 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:27:45,084 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:27:45,084 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 -> fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f [2025-02-08 08:27:45,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:27:45,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:27:45,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:27:45,355 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:27:45,356 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:27:45,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-1_2-join.i [2025-02-08 08:27:46,583 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ed938dd39/7ec1ad33aea74428ad9a15da0432e895/FLAG42762f05b [2025-02-08 08:27:46,833 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:27:46,835 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_2-join.i [2025-02-08 08:27:46,857 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ed938dd39/7ec1ad33aea74428ad9a15da0432e895/FLAG42762f05b [2025-02-08 08:27:46,871 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ed938dd39/7ec1ad33aea74428ad9a15da0432e895 [2025-02-08 08:27:46,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:27:46,874 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:27:46,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:27:46,875 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:27:46,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:27:46,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:27:46" (1/1) ... [2025-02-08 08:27:46,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1c0001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:46, skipping insertion in model container [2025-02-08 08:27:46,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:27:46" (1/1) ... [2025-02-08 08:27:46,919 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:27:47,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:27:47,366 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:27:47,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:27:47,519 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:27:47,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:47 WrapperNode [2025-02-08 08:27:47,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:27:47,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:27:47,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:27:47,520 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:27:47,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:47" (1/1) ... [2025-02-08 08:27:47,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:47" (1/1) ... [2025-02-08 08:27:47,570 INFO L138 Inliner]: procedures = 487, calls = 31, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 92 [2025-02-08 08:27:47,572 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:27:47,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:27:47,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:27:47,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:27:47,579 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:47" (1/1) ... [2025-02-08 08:27:47,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:47" (1/1) ... [2025-02-08 08:27:47,585 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:47" (1/1) ... [2025-02-08 08:27:47,596 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 5, 1]. 63 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2025-02-08 08:27:47,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:47" (1/1) ... [2025-02-08 08:27:47,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:47" (1/1) ... [2025-02-08 08:27:47,622 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:47" (1/1) ... [2025-02-08 08:27:47,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:47" (1/1) ... [2025-02-08 08:27:47,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:47" (1/1) ... [2025-02-08 08:27:47,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:47" (1/1) ... [2025-02-08 08:27:47,636 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:27:47,637 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:27:47,637 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:27:47,637 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:27:47,638 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:47" (1/1) ... [2025-02-08 08:27:47,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:27:47,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:27:47,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:27:47,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:27:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:27:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 08:27:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 08:27:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 08:27:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 08:27:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-02-08 08:27:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-02-08 08:27:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-02-08 08:27:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:27:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 08:27:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:27:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 08:27:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 08:27:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 08:27:47,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:27:47,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:27:47,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 08:27:47,690 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 08:27:47,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 08:27:47,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 08:27:47,691 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:27:47,936 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:27:47,937 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:27:48,128 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1717: havoc ldv_assert_#in~expression#1;assume { :end_inline_ldv_assert } true; [2025-02-08 08:27:48,128 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1717-1: havoc ldv_assert_~expression#1; [2025-02-08 08:27:48,128 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1718: [2025-02-08 08:27:48,128 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1719-1: module_init_#res#1 := 0bv32; [2025-02-08 08:27:48,129 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:27:48,129 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:27:48,203 WARN L149 AtomicBlockAnalyzer]: Unexpected successor node of atomic block begin: L1695-10 is not an error location. [2025-02-08 08:27:48,204 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:27:48,204 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:27:48,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:27:48 BoogieIcfgContainer [2025-02-08 08:27:48,205 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:27:48,206 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:27:48,206 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:27:48,210 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:27:48,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:27:46" (1/3) ... [2025-02-08 08:27:48,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cbfc450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:27:48, skipping insertion in model container [2025-02-08 08:27:48,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:27:47" (2/3) ... [2025-02-08 08:27:48,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cbfc450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:27:48, skipping insertion in model container [2025-02-08 08:27:48,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:27:48" (3/3) ... [2025-02-08 08:27:48,214 INFO L128 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2025-02-08 08:27:48,224 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:27:48,225 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-1_2-join.i that has 2 procedures, 42 locations, 1 initial locations, 0 loop locations, and 7 error locations. [2025-02-08 08:27:48,225 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:27:48,261 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 08:27:48,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 47 transitions, 101 flow [2025-02-08 08:27:48,295 INFO L124 PetriNetUnfolderBase]: 4/32 cut-off events. [2025-02-08 08:27:48,296 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:27:48,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 32 events. 4/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 54 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2025-02-08 08:27:48,298 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 47 transitions, 101 flow [2025-02-08 08:27:48,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 24 transitions, 51 flow [2025-02-08 08:27:48,304 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:27:48,311 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;@6d9e15c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:27:48,311 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-08 08:27:48,314 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:27:48,315 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2025-02-08 08:27:48,315 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:27:48,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:27:48,315 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-08 08:27:48,316 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:27:48,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:27:48,319 INFO L85 PathProgramCache]: Analyzing trace with hash 8722119, now seen corresponding path program 1 times [2025-02-08 08:27:48,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:27:48,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1827978483] [2025-02-08 08:27:48,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:27:48,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:27:48,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:27:48,329 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) [2025-02-08 08:27:48,331 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 [2025-02-08 08:27:48,424 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 08:27:48,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 08:27:48,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:27:48,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:27:48,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:27:48,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:27:48,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:27:48,467 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:27:48,467 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:27:48,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827978483] [2025-02-08 08:27:48,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827978483] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:27:48,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:27:48,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:27:48,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836722296] [2025-02-08 08:27:48,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:27:48,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:27:48,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:27:48,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:27:48,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:27:48,501 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 08:27:48,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 24 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:27:48,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:27:48,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 08:27:48,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:27:48,539 INFO L124 PetriNetUnfolderBase]: 12/39 cut-off events. [2025-02-08 08:27:48,539 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:27:48,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 39 events. 12/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 12 based on Foata normal form. 2/39 useless extension candidates. Maximal degree in co-relation 64. Up to 35 conditions per place. [2025-02-08 08:27:48,540 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 9 selfloop transitions, 2 changer transitions 1/15 dead transitions. [2025-02-08 08:27:48,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 15 transitions, 57 flow [2025-02-08 08:27:48,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:27:48,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:27:48,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2025-02-08 08:27:48,548 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41843971631205673 [2025-02-08 08:27:48,549 INFO L175 Difference]: Start difference. First operand has 26 places, 24 transitions, 51 flow. Second operand 3 states and 59 transitions. [2025-02-08 08:27:48,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 15 transitions, 57 flow [2025-02-08 08:27:48,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 15 transitions, 56 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:27:48,554 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 34 flow [2025-02-08 08:27:48,556 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=34, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2025-02-08 08:27:48,561 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, -6 predicate places. [2025-02-08 08:27:48,564 INFO L471 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 34 flow [2025-02-08 08:27:48,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:27:48,565 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:27:48,565 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:27:48,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 08:27:48,765 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 [2025-02-08 08:27:48,766 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:27:48,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:27:48,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1156087566, now seen corresponding path program 1 times [2025-02-08 08:27:48,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:27:48,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492333238] [2025-02-08 08:27:48,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:27:48,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:27:48,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:27:48,772 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) [2025-02-08 08:27:48,773 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 [2025-02-08 08:27:48,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 08:27:48,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 08:27:48,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:27:48,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:27:48,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:27:48,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:27:48,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:27:48,910 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:27:48,910 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:27:48,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492333238] [2025-02-08 08:27:48,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492333238] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:27:48,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:27:48,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:27:48,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160900138] [2025-02-08 08:27:48,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:27:48,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:27:48,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:27:48,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:27:48,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:27:48,912 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-02-08 08:27:48,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 34 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:27:48,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:27:48,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-02-08 08:27:48,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:27:48,945 INFO L124 PetriNetUnfolderBase]: 9/36 cut-off events. [2025-02-08 08:27:48,945 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 08:27:48,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 36 events. 9/36 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 67 event pairs, 6 based on Foata normal form. 5/40 useless extension candidates. Maximal degree in co-relation 66. Up to 26 conditions per place. [2025-02-08 08:27:48,945 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 10 selfloop transitions, 2 changer transitions 3/18 dead transitions. [2025-02-08 08:27:48,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 18 transitions, 72 flow [2025-02-08 08:27:48,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:27:48,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:27:48,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2025-02-08 08:27:48,947 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4326241134751773 [2025-02-08 08:27:48,947 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 34 flow. Second operand 3 states and 61 transitions. [2025-02-08 08:27:48,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 18 transitions, 72 flow [2025-02-08 08:27:48,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 18 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:27:48,948 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 38 flow [2025-02-08 08:27:48,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=38, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2025-02-08 08:27:48,948 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, -6 predicate places. [2025-02-08 08:27:48,948 INFO L471 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 38 flow [2025-02-08 08:27:48,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:27:48,949 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:27:48,949 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:27:48,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 08:27:49,149 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 [2025-02-08 08:27:49,149 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:27:49,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:27:49,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1590773450, now seen corresponding path program 1 times [2025-02-08 08:27:49,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:27:49,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743447544] [2025-02-08 08:27:49,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:27:49,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:27:49,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:27:49,153 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) [2025-02-08 08:27:49,155 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 [2025-02-08 08:27:49,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 08:27:49,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 08:27:49,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:27:49,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 08:27:49,259 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 08:27:49,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 08:27:49,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 08:27:49,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:27:49,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 08:27:49,301 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-08 08:27:49,301 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 08:27:49,303 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2025-02-08 08:27:49,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2025-02-08 08:27:49,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2025-02-08 08:27:49,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2025-02-08 08:27:49,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2025-02-08 08:27:49,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2025-02-08 08:27:49,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2025-02-08 08:27:49,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2025-02-08 08:27:49,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 08:27:49,510 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 [2025-02-08 08:27:49,510 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 08:27:49,524 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:27:49,525 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:27:49,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:27:49 BasicIcfg [2025-02-08 08:27:49,528 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:27:49,528 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:27:49,528 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:27:49,529 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:27:49,529 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:27:48" (3/4) ... [2025-02-08 08:27:49,530 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 08:27:49,531 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:27:49,531 INFO L158 Benchmark]: Toolchain (without parser) took 2657.45ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 56.6MB in the beginning and 70.6MB in the end (delta: -14.0MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2025-02-08 08:27:49,531 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 83.9MB. Free memory was 62.5MB in the beginning and 62.5MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:27:49,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 644.55ms. Allocated memory is still 83.9MB. Free memory was 56.3MB in the beginning and 34.7MB in the end (delta: 21.7MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2025-02-08 08:27:49,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.68ms. Allocated memory is still 83.9MB. Free memory was 34.7MB in the beginning and 31.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:27:49,532 INFO L158 Benchmark]: Boogie Preprocessor took 64.20ms. Allocated memory is still 83.9MB. Free memory was 31.9MB in the beginning and 50.2MB in the end (delta: -18.4MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2025-02-08 08:27:49,532 INFO L158 Benchmark]: IcfgBuilder took 567.67ms. Allocated memory is still 83.9MB. Free memory was 50.2MB in the beginning and 29.8MB in the end (delta: 20.4MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2025-02-08 08:27:49,532 INFO L158 Benchmark]: TraceAbstraction took 1321.72ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 29.4MB in the beginning and 70.6MB in the end (delta: -41.3MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2025-02-08 08:27:49,533 INFO L158 Benchmark]: Witness Printer took 2.42ms. Allocated memory is still 125.8MB. Free memory was 70.6MB in the beginning and 70.6MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:27:49,534 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 83.9MB. Free memory was 62.5MB in the beginning and 62.5MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 644.55ms. Allocated memory is still 83.9MB. Free memory was 56.3MB in the beginning and 34.7MB in the end (delta: 21.7MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.68ms. Allocated memory is still 83.9MB. Free memory was 34.7MB in the beginning and 31.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.20ms. Allocated memory is still 83.9MB. Free memory was 31.9MB in the beginning and 50.2MB in the end (delta: -18.4MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * IcfgBuilder took 567.67ms. Allocated memory is still 83.9MB. Free memory was 50.2MB in the beginning and 29.8MB in the end (delta: 20.4MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1321.72ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 29.4MB in the beginning and 70.6MB in the end (delta: -41.3MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. * Witness Printer took 2.42ms. Allocated memory is still 125.8MB. Free memory was 70.6MB in the beginning and 70.6MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1693. Possible FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={3:0}, pdev=1, t1=0] [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [\old(arg)={0:0}, mutex={3:0}, pdev=1, t1=0] [L1714] 0 pdev = 2 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=2, t1=0] [L1702] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=0] [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] CALL 0 reach_error() [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_2-join.c", 10, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=0] - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: 1733]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1712]: 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 3 procedures, 50 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 2 NumberOfNonLiveVariables, 74 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2025-02-08 08:27:49,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample