./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-1_3-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-1_3-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd --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 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:30:09,006 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:30:09,111 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 14:30:09,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:30:09,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:30:09,153 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:30:09,154 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:30:09,154 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:30:09,155 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:30:09,155 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:30:09,156 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:30:09,156 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:30:09,157 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:30:09,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:30:09,157 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:30:09,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:30:09,157 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:30:09,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:30:09,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:30:09,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:30:09,158 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 14:30:09,158 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 14:30:09,158 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 14:30:09,158 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:30:09,158 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 14:30:09,158 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:30:09,158 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:30:09,158 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:30:09,158 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:30:09,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:30:09,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:30:09,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:30:09,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:30:09,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:30:09,159 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:30:09,159 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:30:09,159 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:30:09,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:30:09,159 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:30:09,160 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:30:09,160 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:30:09,160 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:30:09,160 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd 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 -> 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 [2024-11-13 14:30:09,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:30:09,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:30:09,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:30:09,575 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:30:09,575 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:30:09,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/ldv-races/race-1_3-join.i Unable to find full path for "g++" [2024-11-13 14:30:11,562 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:30:11,982 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:30:11,983 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/sv-benchmarks/c/ldv-races/race-1_3-join.i [2024-11-13 14:30:12,020 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/data/bcee8ef86/0d8f3f46162841ababeeeee6c6fc3e49/FLAGfd7ebab9a [2024-11-13 14:30:12,044 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/data/bcee8ef86/0d8f3f46162841ababeeeee6c6fc3e49 [2024-11-13 14:30:12,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:30:12,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:30:12,053 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:30:12,053 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:30:12,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:30:12,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:30:12" (1/1) ... [2024-11-13 14:30:12,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@775482f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:12, skipping insertion in model container [2024-11-13 14:30:12,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:30:12" (1/1) ... [2024-11-13 14:30:12,110 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:30:12,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:30:12,926 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:30:13,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:30:13,174 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:30:13,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:13 WrapperNode [2024-11-13 14:30:13,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:30:13,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:30:13,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:30:13,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:30:13,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:13" (1/1) ... [2024-11-13 14:30:13,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:13" (1/1) ... [2024-11-13 14:30:13,233 INFO L138 Inliner]: procedures = 484, calls = 34, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 96 [2024-11-13 14:30:13,234 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:30:13,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:30:13,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:30:13,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:30:13,243 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:13" (1/1) ... [2024-11-13 14:30:13,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:13" (1/1) ... [2024-11-13 14:30:13,247 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:13" (1/1) ... [2024-11-13 14:30:13,262 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 8, 1]. 73 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-11-13 14:30:13,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:13" (1/1) ... [2024-11-13 14:30:13,263 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:13" (1/1) ... [2024-11-13 14:30:13,276 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:13" (1/1) ... [2024-11-13 14:30:13,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:13" (1/1) ... [2024-11-13 14:30:13,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:13" (1/1) ... [2024-11-13 14:30:13,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:13" (1/1) ... [2024-11-13 14:30:13,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:30:13,289 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:30:13,289 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:30:13,289 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:30:13,290 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:13" (1/1) ... [2024-11-13 14:30:13,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:30:13,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:30:13,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:30:13,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:30:13,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 14:30:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 14:30:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 14:30:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 14:30:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:30:13,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 14:30:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 14:30:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 14:30:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:30:13,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:30:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 14:30:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 14:30:13,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 14:30:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 14:30:13,370 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 14:30:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 14:30:13,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 14:30:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:30:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 14:30:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 14:30:13,373 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 14:30:13,671 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:30:13,673 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:30:13,930 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 14:30:13,930 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:30:14,115 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:30:14,115 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 14:30:14,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:14 BoogieIcfgContainer [2024-11-13 14:30:14,117 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:30:14,119 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:30:14,119 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:30:14,125 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:30:14,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:30:12" (1/3) ... [2024-11-13 14:30:14,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2293b0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:30:14, skipping insertion in model container [2024-11-13 14:30:14,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:13" (2/3) ... [2024-11-13 14:30:14,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2293b0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:30:14, skipping insertion in model container [2024-11-13 14:30:14,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:14" (3/3) ... [2024-11-13 14:30:14,128 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2024-11-13 14:30:14,147 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:30:14,150 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG race-1_3-join.i that has 2 procedures, 42 locations, 1 initial locations, 0 loop locations, and 7 error locations. [2024-11-13 14:30:14,150 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 14:30:14,210 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 14:30:14,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 49 transitions, 105 flow [2024-11-13 14:30:14,355 INFO L124 PetriNetUnfolderBase]: 7/57 cut-off events. [2024-11-13 14:30:14,359 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 14:30:14,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 7/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 138 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2024-11-13 14:30:14,364 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 49 transitions, 105 flow [2024-11-13 14:30:14,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 47 transitions, 100 flow [2024-11-13 14:30:14,386 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:30:14,407 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;@47243724, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:30:14,407 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-13 14:30:14,420 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:30:14,420 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2024-11-13 14:30:14,420 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:30:14,420 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:30:14,421 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-13 14:30:14,421 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:30:14,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:14,428 INFO L85 PathProgramCache]: Analyzing trace with hash 10372609, now seen corresponding path program 1 times [2024-11-13 14:30:14,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:14,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538881836] [2024-11-13 14:30:14,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:14,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:15,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:15,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:15,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538881836] [2024-11-13 14:30:15,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538881836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:15,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:15,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:30:15,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047404358] [2024-11-13 14:30:15,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:15,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:30:15,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:30:15,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:30:15,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:30:15,069 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-13 14:30:15,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 47 transitions, 100 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) [2024-11-13 14:30:15,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:30:15,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-13 14:30:15,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:30:15,188 INFO L124 PetriNetUnfolderBase]: 19/79 cut-off events. [2024-11-13 14:30:15,188 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 14:30:15,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 79 events. 19/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 275 event pairs, 18 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 102. Up to 57 conditions per place. [2024-11-13 14:30:15,191 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 15 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2024-11-13 14:30:15,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 106 flow [2024-11-13 14:30:15,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:30:15,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:30:15,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2024-11-13 14:30:15,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46938775510204084 [2024-11-13 14:30:15,212 INFO L175 Difference]: Start difference. First operand has 43 places, 47 transitions, 100 flow. Second operand 3 states and 69 transitions. [2024-11-13 14:30:15,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 106 flow [2024-11-13 14:30:15,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:30:15,219 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 72 flow [2024-11-13 14:30:15,223 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=31, PETRI_TRANSITIONS=29} [2024-11-13 14:30:15,227 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -12 predicate places. [2024-11-13 14:30:15,227 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 72 flow [2024-11-13 14:30:15,228 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) [2024-11-13 14:30:15,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:30:15,228 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:15,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:30:15,229 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:30:15,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:15,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1688430751, now seen corresponding path program 1 times [2024-11-13 14:30:15,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:15,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554883171] [2024-11-13 14:30:15,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:15,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:15,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:15,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554883171] [2024-11-13 14:30:15,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554883171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:15,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:15,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:30:15,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357362072] [2024-11-13 14:30:15,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:15,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:30:15,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:30:15,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:30:15,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:30:15,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-11-13 14:30:15,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-13 14:30:15,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:30:15,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-11-13 14:30:15,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:30:15,602 INFO L124 PetriNetUnfolderBase]: 15/69 cut-off events. [2024-11-13 14:30:15,602 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-13 14:30:15,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 69 events. 15/69 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 205 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 92. Up to 31 conditions per place. [2024-11-13 14:30:15,603 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 24 selfloop transitions, 3 changer transitions 1/39 dead transitions. [2024-11-13 14:30:15,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 39 transitions, 148 flow [2024-11-13 14:30:15,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:30:15,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 14:30:15,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-11-13 14:30:15,606 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5153061224489796 [2024-11-13 14:30:15,606 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 72 flow. Second operand 4 states and 101 transitions. [2024-11-13 14:30:15,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 39 transitions, 148 flow [2024-11-13 14:30:15,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 39 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:30:15,609 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 81 flow [2024-11-13 14:30:15,611 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=81, PETRI_PLACES=34, PETRI_TRANSITIONS=31} [2024-11-13 14:30:15,612 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -9 predicate places. [2024-11-13 14:30:15,612 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 31 transitions, 81 flow [2024-11-13 14:30:15,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-13 14:30:15,612 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:30:15,612 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:15,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:30:15,613 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:30:15,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:15,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1688432324, now seen corresponding path program 1 times [2024-11-13 14:30:15,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:15,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973899856] [2024-11-13 14:30:15,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:15,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:15,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:15,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:15,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973899856] [2024-11-13 14:30:15,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973899856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:15,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:15,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:30:15,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93795227] [2024-11-13 14:30:15,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:15,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:30:15,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:30:15,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:30:15,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:30:15,774 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-13 14:30:15,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:30:15,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:30:15,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-13 14:30:15,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:30:15,884 INFO L124 PetriNetUnfolderBase]: 24/90 cut-off events. [2024-11-13 14:30:15,884 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-11-13 14:30:15,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 90 events. 24/90 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 271 event pairs, 14 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 51. Up to 56 conditions per place. [2024-11-13 14:30:15,885 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 24 selfloop transitions, 4 changer transitions 1/38 dead transitions. [2024-11-13 14:30:15,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 154 flow [2024-11-13 14:30:15,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:30:15,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:30:15,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2024-11-13 14:30:15,889 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5170068027210885 [2024-11-13 14:30:15,889 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 81 flow. Second operand 3 states and 76 transitions. [2024-11-13 14:30:15,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 154 flow [2024-11-13 14:30:15,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 153 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 14:30:15,891 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 106 flow [2024-11-13 14:30:15,893 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2024-11-13 14:30:15,894 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -6 predicate places. [2024-11-13 14:30:15,895 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 106 flow [2024-11-13 14:30:15,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:30:15,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:30:15,895 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:15,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:30:15,895 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:30:15,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:15,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1097377311, now seen corresponding path program 1 times [2024-11-13 14:30:15,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:15,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14822978] [2024-11-13 14:30:15,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:15,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:16,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:16,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:16,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14822978] [2024-11-13 14:30:16,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14822978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:16,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:16,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 14:30:16,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941029727] [2024-11-13 14:30:16,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:16,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:30:16,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:30:16,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:30:16,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:30:16,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-13 14:30:16,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:30:16,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:30:16,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-13 14:30:16,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:30:16,138 INFO L124 PetriNetUnfolderBase]: 18/77 cut-off events. [2024-11-13 14:30:16,138 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-13 14:30:16,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 77 events. 18/77 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 205 event pairs, 8 based on Foata normal form. 1/72 useless extension candidates. Maximal degree in co-relation 94. Up to 34 conditions per place. [2024-11-13 14:30:16,139 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 19 selfloop transitions, 2 changer transitions 5/36 dead transitions. [2024-11-13 14:30:16,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 36 transitions, 162 flow [2024-11-13 14:30:16,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:30:16,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:30:16,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-11-13 14:30:16,144 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5034013605442177 [2024-11-13 14:30:16,144 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 106 flow. Second operand 3 states and 74 transitions. [2024-11-13 14:30:16,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 36 transitions, 162 flow [2024-11-13 14:30:16,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:30:16,149 INFO L231 Difference]: Finished difference. Result has 38 places, 28 transitions, 92 flow [2024-11-13 14:30:16,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=38, PETRI_TRANSITIONS=28} [2024-11-13 14:30:16,150 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -5 predicate places. [2024-11-13 14:30:16,150 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 92 flow [2024-11-13 14:30:16,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:30:16,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:30:16,151 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:16,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:30:16,151 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:30:16,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:16,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2117403754, now seen corresponding path program 1 times [2024-11-13 14:30:16,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:16,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143072214] [2024-11-13 14:30:16,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:16,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:30:16,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:30:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:30:16,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:30:16,258 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:30:16,260 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-11-13 14:30:16,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-11-13 14:30:16,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-11-13 14:30:16,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2024-11-13 14:30:16,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2024-11-13 14:30:16,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2024-11-13 14:30:16,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2024-11-13 14:30:16,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-11-13 14:30:16,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:30:16,264 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-13 14:30:16,308 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 14:30:16,308 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:30:16,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:30:16 BasicIcfg [2024-11-13 14:30:16,318 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:30:16,320 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:30:16,320 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:30:16,320 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:30:16,321 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:14" (3/4) ... [2024-11-13 14:30:16,323 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:30:16,324 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:30:16,327 INFO L158 Benchmark]: Toolchain (without parser) took 4275.65ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 88.8MB in the beginning and 85.1MB in the end (delta: 3.6MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2024-11-13 14:30:16,328 INFO L158 Benchmark]: CDTParser took 1.13ms. Allocated memory is still 83.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:30:16,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1122.85ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 85.0MB in the end (delta: 3.3MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2024-11-13 14:30:16,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.59ms. Allocated memory is still 117.4MB. Free memory was 85.0MB in the beginning and 82.0MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:30:16,329 INFO L158 Benchmark]: Boogie Preprocessor took 54.40ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 78.5MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:30:16,331 INFO L158 Benchmark]: RCFGBuilder took 827.48ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 45.7MB in the end (delta: 32.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 14:30:16,331 INFO L158 Benchmark]: TraceAbstraction took 2199.72ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 45.0MB in the beginning and 85.1MB in the end (delta: -40.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:30:16,332 INFO L158 Benchmark]: Witness Printer took 5.03ms. Allocated memory is still 151.0MB. Free memory was 85.1MB in the beginning and 85.1MB in the end (delta: 4.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:30:16,334 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13ms. Allocated memory is still 83.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1122.85ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 85.0MB in the end (delta: 3.3MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.59ms. Allocated memory is still 117.4MB. Free memory was 85.0MB in the beginning and 82.0MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.40ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 78.5MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 827.48ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 45.7MB in the end (delta: 32.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2199.72ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 45.0MB in the beginning and 85.1MB in the end (delta: -40.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.03ms. Allocated memory is still 151.0MB. Free memory was 85.1MB in the beginning and 85.1MB in the end (delta: 4.3kB). 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; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL, EXPR 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] [L1713] 0 return 0; VAL [\old(arg)={0:0}, \result=0, arg={0:0}, mutex={3:0}, pdev=1, t1=0] [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) [L1735] CALL 0 module_exit() [L1721] 0 void *status; VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=1, status={5:0}, t1=0] [L1723] 0 pdev = 4 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=4, status={5:0}, t1=0] [L1702] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=0] [L1726] CALL 0 ldv_assert(pdev==4) [L1695] COND TRUE 0 !expression [L1695] CALL 0 reach_error() [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_3-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: 1733]: 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: 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: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 165 IncrementalHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 4 mSDtfsCounter, 165 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=3, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 57 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 14:30:16,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-1_3-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd --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 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:30:19,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:30:19,239 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-13 14:30:19,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:30:19,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:30:19,315 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:30:19,321 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:30:19,325 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:30:19,326 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:30:19,326 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:30:19,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:30:19,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:30:19,326 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:30:19,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:30:19,326 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:30:19,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:30:19,327 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:30:19,327 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:30:19,327 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:30:19,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:30:19,327 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 14:30:19,327 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 14:30:19,327 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 14:30:19,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:30:19,328 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 14:30:19,328 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 14:30:19,328 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:30:19,328 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 14:30:19,335 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:30:19,335 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:30:19,335 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:30:19,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:30:19,336 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:30:19,336 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:30:19,336 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:30:19,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:30:19,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:30:19,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:30:19,336 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 14:30:19,336 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 14:30:19,336 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:30:19,336 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:30:19,336 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:30:19,337 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:30:19,337 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd 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 -> 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 [2024-11-13 14:30:19,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:30:19,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:30:19,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:30:19,738 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:30:19,741 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:30:19,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/ldv-races/race-1_3-join.i Unable to find full path for "g++" [2024-11-13 14:30:21,723 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:30:22,109 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:30:22,110 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/sv-benchmarks/c/ldv-races/race-1_3-join.i [2024-11-13 14:30:22,137 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/data/65fd7e98a/4e3b4487568940fcaf1185148bdadb24/FLAGeba7170fb [2024-11-13 14:30:22,154 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/data/65fd7e98a/4e3b4487568940fcaf1185148bdadb24 [2024-11-13 14:30:22,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:30:22,159 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:30:22,160 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:30:22,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:30:22,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:30:22,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:30:22" (1/1) ... [2024-11-13 14:30:22,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@253a4e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:22, skipping insertion in model container [2024-11-13 14:30:22,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:30:22" (1/1) ... [2024-11-13 14:30:22,232 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:30:23,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:30:23,096 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:30:23,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:30:23,351 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:30:23,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:23 WrapperNode [2024-11-13 14:30:23,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:30:23,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:30:23,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:30:23,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:30:23,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:23" (1/1) ... [2024-11-13 14:30:23,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:23" (1/1) ... [2024-11-13 14:30:23,445 INFO L138 Inliner]: procedures = 491, calls = 34, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 95 [2024-11-13 14:30:23,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:30:23,448 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:30:23,448 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:30:23,448 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:30:23,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:23" (1/1) ... [2024-11-13 14:30:23,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:23" (1/1) ... [2024-11-13 14:30:23,465 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:23" (1/1) ... [2024-11-13 14:30:23,492 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 8, 1]. 73 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-11-13 14:30:23,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:23" (1/1) ... [2024-11-13 14:30:23,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:23" (1/1) ... [2024-11-13 14:30:23,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:23" (1/1) ... [2024-11-13 14:30:23,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:23" (1/1) ... [2024-11-13 14:30:23,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:23" (1/1) ... [2024-11-13 14:30:23,532 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:23" (1/1) ... [2024-11-13 14:30:23,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:30:23,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:30:23,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:30:23,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:30:23,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:23" (1/1) ... [2024-11-13 14:30:23,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:30:23,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:30:23,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:30:23,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:30:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 14:30:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 14:30:23,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-13 14:30:23,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-13 14:30:23,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-13 14:30:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 14:30:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 14:30:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-13 14:30:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-13 14:30:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-13 14:30:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-13 14:30:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 14:30:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 14:30:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:30:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 14:30:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 14:30:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 14:30:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:30:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:30:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 14:30:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 14:30:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 14:30:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 14:30:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 14:30:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 14:30:23,621 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 14:30:23,622 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 14:30:23,937 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:30:23,939 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:30:24,239 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 14:30:24,239 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:30:24,548 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:30:24,548 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 14:30:24,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:24 BoogieIcfgContainer [2024-11-13 14:30:24,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:30:24,553 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:30:24,554 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:30:24,560 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:30:24,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:30:22" (1/3) ... [2024-11-13 14:30:24,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8adb0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:30:24, skipping insertion in model container [2024-11-13 14:30:24,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:23" (2/3) ... [2024-11-13 14:30:24,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8adb0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:30:24, skipping insertion in model container [2024-11-13 14:30:24,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:24" (3/3) ... [2024-11-13 14:30:24,564 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2024-11-13 14:30:24,583 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:30:24,585 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG race-1_3-join.i that has 2 procedures, 42 locations, 1 initial locations, 0 loop locations, and 7 error locations. [2024-11-13 14:30:24,585 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 14:30:24,658 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 14:30:24,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 49 transitions, 105 flow [2024-11-13 14:30:24,759 INFO L124 PetriNetUnfolderBase]: 7/57 cut-off events. [2024-11-13 14:30:24,762 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 14:30:24,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 7/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 138 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2024-11-13 14:30:24,766 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 49 transitions, 105 flow [2024-11-13 14:30:24,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 47 transitions, 100 flow [2024-11-13 14:30:24,783 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:30:24,808 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;@1ea327b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:30:24,810 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-13 14:30:24,820 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:30:24,824 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2024-11-13 14:30:24,824 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:30:24,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:30:24,825 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-13 14:30:24,825 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:30:24,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:24,833 INFO L85 PathProgramCache]: Analyzing trace with hash 10370687, now seen corresponding path program 1 times [2024-11-13 14:30:24,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:30:24,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598067558] [2024-11-13 14:30:24,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:24,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:30:24,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:30:24,853 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:30:24,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:30:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:25,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:30:25,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:30:25,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:25,139 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:30:25,140 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:30:25,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598067558] [2024-11-13 14:30:25,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598067558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:25,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:25,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:30:25,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666581142] [2024-11-13 14:30:25,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:25,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:30:25,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:30:25,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:30:25,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:30:25,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-11-13 14:30:25,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 47 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-13 14:30:25,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:30:25,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-11-13 14:30:25,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:30:25,345 INFO L124 PetriNetUnfolderBase]: 19/79 cut-off events. [2024-11-13 14:30:25,345 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 14:30:25,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 79 events. 19/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 275 event pairs, 18 based on Foata normal form. 3/68 useless extension candidates. Maximal degree in co-relation 102. Up to 57 conditions per place. [2024-11-13 14:30:25,347 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 12 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2024-11-13 14:30:25,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 100 flow [2024-11-13 14:30:25,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:30:25,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:30:25,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-11-13 14:30:25,369 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531 [2024-11-13 14:30:25,371 INFO L175 Difference]: Start difference. First operand has 43 places, 47 transitions, 100 flow. Second operand 3 states and 75 transitions. [2024-11-13 14:30:25,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 100 flow [2024-11-13 14:30:25,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:30:25,384 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 72 flow [2024-11-13 14:30:25,386 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=31, PETRI_TRANSITIONS=29} [2024-11-13 14:30:25,390 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -12 predicate places. [2024-11-13 14:30:25,390 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 72 flow [2024-11-13 14:30:25,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-13 14:30:25,391 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:30:25,391 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:25,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:30:25,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:30:25,596 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:30:25,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:25,597 INFO L85 PathProgramCache]: Analyzing trace with hash -48643643, now seen corresponding path program 1 times [2024-11-13 14:30:25,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:30:25,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2108248161] [2024-11-13 14:30:25,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:25,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:30:25,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:30:25,600 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:30:25,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:30:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:25,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:30:25,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:30:25,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:25,808 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:30:25,809 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:30:25,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108248161] [2024-11-13 14:30:25,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108248161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:25,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:25,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 14:30:25,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442904207] [2024-11-13 14:30:25,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:25,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:30:25,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:30:25,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:30:25,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:30:25,818 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-13 14:30:25,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-13 14:30:25,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:30:25,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-13 14:30:25,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:30:25,922 INFO L124 PetriNetUnfolderBase]: 18/78 cut-off events. [2024-11-13 14:30:25,922 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-13 14:30:25,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 78 events. 18/78 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 245 event pairs, 9 based on Foata normal form. 5/70 useless extension candidates. Maximal degree in co-relation 109. Up to 32 conditions per place. [2024-11-13 14:30:25,923 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 19 selfloop transitions, 2 changer transitions 1/32 dead transitions. [2024-11-13 14:30:25,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 32 transitions, 122 flow [2024-11-13 14:30:25,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:30:25,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:30:25,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-11-13 14:30:25,926 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5034013605442177 [2024-11-13 14:30:25,926 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 72 flow. Second operand 3 states and 74 transitions. [2024-11-13 14:30:25,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 32 transitions, 122 flow [2024-11-13 14:30:25,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 32 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:30:25,929 INFO L231 Difference]: Finished difference. Result has 32 places, 28 transitions, 66 flow [2024-11-13 14:30:25,929 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=32, PETRI_TRANSITIONS=28} [2024-11-13 14:30:25,930 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -11 predicate places. [2024-11-13 14:30:25,930 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 28 transitions, 66 flow [2024-11-13 14:30:25,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-13 14:30:25,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:30:25,931 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:25,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 14:30:26,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:30:26,132 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:30:26,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:26,132 INFO L85 PathProgramCache]: Analyzing trace with hash -48642010, now seen corresponding path program 1 times [2024-11-13 14:30:26,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:30:26,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [570271306] [2024-11-13 14:30:26,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:26,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:30:26,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:30:26,136 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:30:26,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:30:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:26,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:30:26,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:30:26,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:26,306 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:30:26,306 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:30:26,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570271306] [2024-11-13 14:30:26,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570271306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:26,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:26,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:30:26,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032142346] [2024-11-13 14:30:26,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:26,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:30:26,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:30:26,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:30:26,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:30:26,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-13 14:30:26,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:30:26,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:30:26,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-13 14:30:26,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:30:26,426 INFO L124 PetriNetUnfolderBase]: 24/87 cut-off events. [2024-11-13 14:30:26,426 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 14:30:26,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 87 events. 24/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 232 event pairs, 14 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 61. Up to 55 conditions per place. [2024-11-13 14:30:26,428 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 20 selfloop transitions, 4 changer transitions 3/35 dead transitions. [2024-11-13 14:30:26,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 35 transitions, 133 flow [2024-11-13 14:30:26,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:30:26,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:30:26,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-11-13 14:30:26,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531 [2024-11-13 14:30:26,430 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 66 flow. Second operand 3 states and 75 transitions. [2024-11-13 14:30:26,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 35 transitions, 133 flow [2024-11-13 14:30:26,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 35 transitions, 125 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-13 14:30:26,432 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 82 flow [2024-11-13 14:30:26,432 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2024-11-13 14:30:26,433 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -10 predicate places. [2024-11-13 14:30:26,434 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 82 flow [2024-11-13 14:30:26,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:30:26,434 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:30:26,434 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:26,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:30:26,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:30:26,635 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 14:30:26,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:26,636 INFO L85 PathProgramCache]: Analyzing trace with hash -70964316, now seen corresponding path program 1 times [2024-11-13 14:30:26,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:30:26,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [565336497] [2024-11-13 14:30:26,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:26,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:30:26,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:30:26,640 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:30:26,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:30:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:30:26,800 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:30:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:30:26,883 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-13 14:30:26,884 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:30:26,885 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-11-13 14:30:26,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-11-13 14:30:26,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-11-13 14:30:26,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2024-11-13 14:30:26,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2024-11-13 14:30:26,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2024-11-13 14:30:26,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2024-11-13 14:30:26,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-11-13 14:30:26,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 14:30:27,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:30:27,096 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 14:30:27,138 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 14:30:27,138 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:30:27,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:30:27 BasicIcfg [2024-11-13 14:30:27,151 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:30:27,152 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:30:27,152 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:30:27,152 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:30:27,153 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:24" (3/4) ... [2024-11-13 14:30:27,158 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:30:27,160 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:30:27,161 INFO L158 Benchmark]: Toolchain (without parser) took 5002.06ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 89.7MB in the beginning and 138.4MB in the end (delta: -48.7MB). Peak memory consumption was 92.5MB. Max. memory is 16.1GB. [2024-11-13 14:30:27,161 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:30:27,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1192.06ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 77.7MB in the end (delta: 12.0MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2024-11-13 14:30:27,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.14ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 74.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:30:27,163 INFO L158 Benchmark]: Boogie Preprocessor took 96.39ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 70.7MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:30:27,164 INFO L158 Benchmark]: RCFGBuilder took 1004.18ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 70.7MB in the beginning and 212.8MB in the end (delta: -142.0MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2024-11-13 14:30:27,165 INFO L158 Benchmark]: TraceAbstraction took 2597.74ms. Allocated memory is still 260.0MB. Free memory was 212.1MB in the beginning and 138.4MB in the end (delta: 73.7MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-13 14:30:27,165 INFO L158 Benchmark]: Witness Printer took 8.03ms. Allocated memory is still 260.0MB. Free memory is still 138.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:30:27,169 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1192.06ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 77.7MB in the end (delta: 12.0MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.14ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 74.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 96.39ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 70.7MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1004.18ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 70.7MB in the beginning and 212.8MB in the end (delta: -142.0MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2597.74ms. Allocated memory is still 260.0MB. Free memory was 212.1MB in the beginning and 138.4MB in the end (delta: 73.7MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Witness Printer took 8.03ms. Allocated memory is still 260.0MB. Free memory is still 138.4MB. 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; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL, EXPR 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] [L1713] 0 return 0; VAL [\old(arg)={0:0}, \result=0, arg={0:0}, mutex={3:0}, pdev=1, t1=0] [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) [L1735] CALL 0 module_exit() [L1721] 0 void *status; VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=1, status={5:0}, t1=0] [L1723] 0 pdev = 4 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=4, status={5:0}, t1=0] [L1702] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=0] [L1726] CALL 0 ldv_assert(pdev==4) [L1695] COND TRUE 0 !expression [L1695] CALL 0 reach_error() [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_3-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: 1733]: 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: 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: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 1 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 2 NumberOfNonLiveVariables, 139 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 14:30:27,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bd0183-e13c-49eb-9afa-0ba70a49d26e/bin/uautomizer-verify-qhAvR1uOyd/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