./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread/stack-1.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/pthread/stack-1.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 a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:11:04,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:11:04,755 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:11:04,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:11:04,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:11:04,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:11:04,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:11:04,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:11:04,792 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:11:04,792 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:11:04,793 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:11:04,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:11:04,793 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:11:04,793 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:11:04,793 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:11:04,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:11:04,793 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:11:04,794 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:11:04,794 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:11:04,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:11:04,794 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:11:04,794 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:11:04,794 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:11:04,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:11:04,794 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:11:04,794 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:11:04,794 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:11:04,794 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:11:04,794 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:11:04,795 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:11:04,795 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:11:04,795 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:11:04,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:11:04,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:11:04,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:11:04,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:11:04,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:11:04,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:11:04,796 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:11:04,796 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:11:04,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:11:04,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:11:04,796 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 -> a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 [2025-02-08 08:11:05,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:11:05,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:11:05,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:11:05,092 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:11:05,092 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:11:05,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/stack-1.i [2025-02-08 08:11:06,372 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/375b07939/ac28b35f0a4d4017981c90fcb2273a56/FLAGa3aab5d54 [2025-02-08 08:11:06,686 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:11:06,687 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/stack-1.i [2025-02-08 08:11:06,699 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/375b07939/ac28b35f0a4d4017981c90fcb2273a56/FLAGa3aab5d54 [2025-02-08 08:11:06,712 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/375b07939/ac28b35f0a4d4017981c90fcb2273a56 [2025-02-08 08:11:06,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:11:06,715 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:11:06,716 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:11:06,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:11:06,720 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:11:06,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:11:06" (1/1) ... [2025-02-08 08:11:06,721 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72645251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:06, skipping insertion in model container [2025-02-08 08:11:06,721 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:11:06" (1/1) ... [2025-02-08 08:11:06,754 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:11:07,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:11:07,232 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:11:07,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:11:07,329 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:11:07,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:07 WrapperNode [2025-02-08 08:11:07,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:11:07,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:11:07,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:11:07,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:11:07,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:07" (1/1) ... [2025-02-08 08:11:07,349 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:07" (1/1) ... [2025-02-08 08:11:07,367 INFO L138 Inliner]: procedures = 277, calls = 36, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 148 [2025-02-08 08:11:07,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:11:07,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:11:07,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:11:07,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:11:07,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:07" (1/1) ... [2025-02-08 08:11:07,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:07" (1/1) ... [2025-02-08 08:11:07,378 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:07" (1/1) ... [2025-02-08 08:11:07,391 INFO L175 MemorySlicer]: Split 14 memory accesses to 3 slices as follows [2, 5, 7]. 50 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 1 writes are split as follows [0, 0, 1]. [2025-02-08 08:11:07,391 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:07" (1/1) ... [2025-02-08 08:11:07,392 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:07" (1/1) ... [2025-02-08 08:11:07,398 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:07" (1/1) ... [2025-02-08 08:11:07,399 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:07" (1/1) ... [2025-02-08 08:11:07,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:07" (1/1) ... [2025-02-08 08:11:07,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:07" (1/1) ... [2025-02-08 08:11:07,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:11:07,408 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:11:07,408 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:11:07,408 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:11:07,409 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:07" (1/1) ... [2025-02-08 08:11:07,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:11:07,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:11:07,440 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 08:11:07,442 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 08:11:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-02-08 08:11:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-02-08 08:11:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-02-08 08:11:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-02-08 08:11:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 08:11:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 08:11:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 08:11:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 08:11:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 08:11:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 08:11:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 08:11:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 08:11:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:11:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:11:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 08:11:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 08:11:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:11:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:11:07,459 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 08:11:07,601 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:11:07,603 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:11:07,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997-4: havoc push_#in~stack#1.base, push_#in~stack#1.offset, push_#in~x#1; [2025-02-08 08:11:07,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997-5: havoc push_#t~ret33#1, push_#t~ret34#1, push_~stack#1.base, push_~stack#1.offset, push_~x#1; [2025-02-08 08:11:07,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997-6: #t~ret40#1 := push_#res#1; [2025-02-08 08:11:07,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc push_#t~ret34#1; [2025-02-08 08:11:07,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L969-1: SUMMARY for call write~int#2(push_~x#1, push_~stack#1.base, push_~stack#1.offset + 4 * push_#t~ret34#1, 4); srcloc: null [2025-02-08 08:11:07,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L969-1: assume !(1 == #valid[push_~stack#1.base]); [2025-02-08 08:11:07,830 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L969-1: assume !(4 + (push_~stack#1.offset + 4 * push_#t~ret34#1) <= #length[push_~stack#1.base] && 0 <= push_~stack#1.offset + 4 * push_#t~ret34#1); [2025-02-08 08:11:07,830 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L969-2: assume { :end_inline_get_top } true;assume -2147483648 <= push_#t~ret34#1 && push_#t~ret34#1 <= 2147483647; [2025-02-08 08:11:07,830 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L998: assume { :end_inline_error } true; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L969-3: push_#t~ret34#1 := get_top_#res#1; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L998-1: assume { :begin_inline_error } true;assume { :begin_inline_reach_error } true;havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L20: assume false; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L20: assume !false; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L20-1: assume false; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L20-1: assume !false; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L941: assume { :end_inline_reach_error } true;assume false; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L941-1: havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L970: havoc inc_top_#t~post31#1;assume { :end_inline_inc_top } true; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L970-1: assume { :begin_inline_inc_top } true;havoc inc_top_#t~post31#1; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L999: havoc #t~ret41#1; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L999-1: [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L999-2: SUMMARY for call #t~ret41#1 := #PthreadsMutexUnlock(~#m~0.base, ~#m~0.offset); srcloc: null [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L999-3: [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L946: havoc inc_top_#t~post31#1; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L946-1: ~top~0 := 1 + inc_top_#t~post31#1; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L946-2: inc_top_#t~post31#1 := ~top~0; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L992-1: havoc #t~post42#1; [2025-02-08 08:11:07,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L992-2: ~i~0#1 := 1 + #t~post42#1; [2025-02-08 08:11:07,832 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L992-3: #t~post42#1 := ~i~0#1; [2025-02-08 08:11:07,832 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L972-1: push_#res#1 := 0; [2025-02-08 08:11:07,832 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997: assume -1 == #t~ret40#1; [2025-02-08 08:11:07,832 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997: assume !(-1 == #t~ret40#1); [2025-02-08 08:11:07,832 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997-1: havoc #t~ret40#1; [2025-02-08 08:11:07,832 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997-2: havoc #t~ret40#1; [2025-02-08 08:11:07,832 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997-3: assume { :end_inline_push } true;assume -2147483648 <= #t~ret40#1 && #t~ret40#1 <= 2147483647; [2025-02-08 08:11:07,909 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L986-1: pop_#res#1 := 0; [2025-02-08 08:11:07,909 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L20: assume false; [2025-02-08 08:11:07,909 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L20: assume !false; [2025-02-08 08:11:07,909 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L20-1: assume false; [2025-02-08 08:11:07,909 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L20-1: assume !false; [2025-02-08 08:11:07,909 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011: assume -2 == #t~ret44#1; [2025-02-08 08:11:07,909 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011: assume !(-2 == #t~ret44#1); [2025-02-08 08:11:07,909 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-1: havoc #t~ret44#1; [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-2: havoc #t~ret44#1; [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-3: assume { :end_inline_pop } true;assume -2147483648 <= #t~ret44#1 && #t~ret44#1 <= 2147483647; [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-4: havoc pop_#in~stack#1.base, pop_#in~stack#1.offset; [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-5: havoc pop_#t~ret35#1, pop_#t~ret36#1, pop_#t~mem37#1, pop_~stack#1.base, pop_~stack#1.offset; [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L941: assume { :end_inline_reach_error } true;assume false; [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-6: #t~ret44#1 := pop_#res#1; [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L941-1: havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1012: assume { :end_inline_error } true; [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1012-1: assume { :begin_inline_error } true;assume { :begin_inline_reach_error } true;havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L984: havoc pop_#t~mem37#1; [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L984-1: havoc pop_#t~ret36#1; [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L984-3: havoc pop_#t~mem37#1; [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L984-4: havoc pop_#t~ret36#1; [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L984-5: pop_#res#1 := (if pop_#t~mem37#1 % 4294967296 % 4294967296 <= 2147483647 then pop_#t~mem37#1 % 4294967296 % 4294967296 else pop_#t~mem37#1 % 4294967296 % 4294967296 - 4294967296); [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L984-6: SUMMARY for call pop_#t~mem37#1 := read~int#2(pop_~stack#1.base, pop_~stack#1.offset + 4 * pop_#t~ret36#1, 4); srcloc: null [2025-02-08 08:11:07,910 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L984-6: assume !(1 == #valid[pop_~stack#1.base]); [2025-02-08 08:11:07,911 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L984-6: assume !(4 + (pop_~stack#1.offset + 4 * pop_#t~ret36#1) <= #length[pop_~stack#1.base] && 0 <= pop_~stack#1.offset + 4 * pop_#t~ret36#1); [2025-02-08 08:11:07,911 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L984-7: assume { :end_inline_get_top } true;assume -2147483648 <= pop_#t~ret36#1 && pop_#t~ret36#1 <= 2147483647; [2025-02-08 08:11:07,911 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L984-8: pop_#t~ret36#1 := get_top_#res#1; [2025-02-08 08:11:07,912 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:11:07,912 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:11:08,050 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:11:08,051 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:11:08,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:11:08 BoogieIcfgContainer [2025-02-08 08:11:08,051 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:11:08,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:11:08,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:11:08,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:11:08,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:11:06" (1/3) ... [2025-02-08 08:11:08,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487c289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:11:08, skipping insertion in model container [2025-02-08 08:11:08,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:07" (2/3) ... [2025-02-08 08:11:08,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487c289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:11:08, skipping insertion in model container [2025-02-08 08:11:08,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:11:08" (3/3) ... [2025-02-08 08:11:08,061 INFO L128 eAbstractionObserver]: Analyzing ICFG stack-1.i [2025-02-08 08:11:08,074 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:11:08,076 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stack-1.i that has 3 procedures, 30 locations, 1 initial locations, 2 loop locations, and 7 error locations. [2025-02-08 08:11:08,076 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:11:08,137 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 08:11:08,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 30 transitions, 74 flow [2025-02-08 08:11:08,192 INFO L124 PetriNetUnfolderBase]: 1/28 cut-off events. [2025-02-08 08:11:08,196 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 08:11:08,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 28 events. 1/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2025-02-08 08:11:08,199 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 30 transitions, 74 flow [2025-02-08 08:11:08,202 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 24 transitions, 60 flow [2025-02-08 08:11:08,213 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:11:08,222 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;@6e1ddf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:11:08,222 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-02-08 08:11:08,229 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:11:08,229 INFO L124 PetriNetUnfolderBase]: 1/23 cut-off events. [2025-02-08 08:11:08,229 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 08:11:08,230 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:08,230 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:08,230 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 08:11:08,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:08,239 INFO L85 PathProgramCache]: Analyzing trace with hash -295784974, now seen corresponding path program 1 times [2025-02-08 08:11:08,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:08,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538902139] [2025-02-08 08:11:08,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:11:08,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:08,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 08:11:08,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 08:11:08,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:11:08,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:08,516 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 08:11:08,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:08,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538902139] [2025-02-08 08:11:08,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538902139] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:11:08,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:11:08,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:11:08,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917792550] [2025-02-08 08:11:08,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:11:08,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:11:08,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:08,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:11:08,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:11:08,561 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2025-02-08 08:11:08,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 08:11:08,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:08,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2025-02-08 08:11:08,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:08,676 INFO L124 PetriNetUnfolderBase]: 91/179 cut-off events. [2025-02-08 08:11:08,678 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-08 08:11:08,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 179 events. 91/179 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 662 event pairs, 4 based on Foata normal form. 12/176 useless extension candidates. Maximal degree in co-relation 351. Up to 145 conditions per place. [2025-02-08 08:11:08,680 INFO L140 encePairwiseOnDemand]: 28/30 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2025-02-08 08:11:08,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 27 transitions, 109 flow [2025-02-08 08:11:08,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:11:08,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:11:08,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2025-02-08 08:11:08,695 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2025-02-08 08:11:08,697 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 60 flow. Second operand 3 states and 48 transitions. [2025-02-08 08:11:08,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 27 transitions, 109 flow [2025-02-08 08:11:08,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 27 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:11:08,703 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2025-02-08 08:11:08,706 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2025-02-08 08:11:08,709 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, -5 predicate places. [2025-02-08 08:11:08,710 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2025-02-08 08:11:08,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 08:11:08,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2025-02-08 08:11:08,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-02-08 08:11:08,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-02-08 08:11:08,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:11:08,715 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 08:11:08,719 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:11:08,720 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:11:08,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:11:08 BasicIcfg [2025-02-08 08:11:08,728 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:11:08,729 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:11:08,729 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:11:08,730 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:11:08,730 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:11:08" (3/4) ... [2025-02-08 08:11:08,732 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:11:08,734 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t1 [2025-02-08 08:11:08,735 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t2 [2025-02-08 08:11:08,738 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2025-02-08 08:11:08,738 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2025-02-08 08:11:08,739 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-02-08 08:11:08,739 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 08:11:08,739 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 08:11:08,813 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:11:08,813 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:11:08,813 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:11:08,814 INFO L158 Benchmark]: Toolchain (without parser) took 2098.64ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 65.0MB in the end (delta: 40.4MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2025-02-08 08:11:08,814 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:11:08,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 613.95ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 76.0MB in the end (delta: 29.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 08:11:08,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.66ms. Allocated memory is still 142.6MB. Free memory was 76.0MB in the beginning and 73.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:11:08,815 INFO L158 Benchmark]: Boogie Preprocessor took 36.02ms. Allocated memory is still 142.6MB. Free memory was 73.9MB in the beginning and 71.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:11:08,815 INFO L158 Benchmark]: IcfgBuilder took 643.32ms. Allocated memory is still 142.6MB. Free memory was 71.8MB in the beginning and 39.3MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 08:11:08,816 INFO L158 Benchmark]: TraceAbstraction took 675.43ms. Allocated memory is still 142.6MB. Free memory was 38.2MB in the beginning and 70.4MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:11:08,816 INFO L158 Benchmark]: Witness Printer took 83.93ms. Allocated memory is still 142.6MB. Free memory was 70.4MB in the beginning and 65.0MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:11:08,817 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 613.95ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 76.0MB in the end (delta: 29.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.66ms. Allocated memory is still 142.6MB. Free memory was 76.0MB in the beginning and 73.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.02ms. Allocated memory is still 142.6MB. Free memory was 73.9MB in the beginning and 71.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 643.32ms. Allocated memory is still 142.6MB. Free memory was 71.8MB in the beginning and 39.3MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 675.43ms. Allocated memory is still 142.6MB. Free memory was 38.2MB in the beginning and 70.4MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 83.93ms. Allocated memory is still 142.6MB. Free memory was 70.4MB in the beginning and 65.0MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1018]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 51 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 08:11:08,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE