./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/twostage_3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0db6974abead9f0b145be669e8625acba9e17feac06fbf7c6b45d50c107fdab8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:50:05,262 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:50:05,378 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 04:50:05,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:50:05,385 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:50:05,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:50:05,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:50:05,416 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:50:05,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:50:05,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:50:05,418 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:50:05,418 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:50:05,419 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:50:05,419 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:50:05,420 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:50:05,420 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:50:05,421 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:50:05,421 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:50:05,422 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:50:05,422 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:50:05,423 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:50:05,423 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:50:05,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 04:50:05,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 04:50:05,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:50:05,426 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:50:05,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:50:05,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:50:05,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:50:05,437 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 04:50:05,438 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 04:50:05,439 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 04:50:05,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:50:05,439 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:50:05,441 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:50:05,442 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:50:05,442 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:50:05,442 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:50:05,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:50:05,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:50:05,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:50:05,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:50:05,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:50:05,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:50:05,444 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:50:05,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:50:05,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:50:05,445 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:50:05,445 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:50:05,445 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0db6974abead9f0b145be669e8625acba9e17feac06fbf7c6b45d50c107fdab8 [2024-11-09 04:50:05,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:50:05,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:50:05,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:50:05,783 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:50:05,784 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:50:05,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/pthread/twostage_3-2.i Unable to find full path for "g++" [2024-11-09 04:50:08,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:50:08,678 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:50:08,679 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/sv-benchmarks/c/pthread/twostage_3-2.i [2024-11-09 04:50:08,718 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/data/bf4e2fc19/1fcb541e9c11481abd749c4096ee6bbc/FLAGb161978f4 [2024-11-09 04:50:08,744 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/data/bf4e2fc19/1fcb541e9c11481abd749c4096ee6bbc [2024-11-09 04:50:08,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:50:08,750 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:50:08,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:50:08,751 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:50:08,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:50:08,762 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:50:08" (1/1) ... [2024-11-09 04:50:08,763 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4f8f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:08, skipping insertion in model container [2024-11-09 04:50:08,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:50:08" (1/1) ... [2024-11-09 04:50:08,857 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:50:09,812 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 04:50:09,813 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 04:50:09,833 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-09 04:50:09,835 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-09 04:50:09,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:50:09,861 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:50:09,996 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-09 04:50:09,997 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-09 04:50:09,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:50:10,162 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:50:10,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:10 WrapperNode [2024-11-09 04:50:10,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:50:10,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:50:10,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:50:10,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:50:10,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:10" (1/1) ... [2024-11-09 04:50:10,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:10" (1/1) ... [2024-11-09 04:50:10,261 INFO L138 Inliner]: procedures = 373, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 169 [2024-11-09 04:50:10,265 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:50:10,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:50:10,267 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:50:10,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:50:10,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:10" (1/1) ... [2024-11-09 04:50:10,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:10" (1/1) ... [2024-11-09 04:50:10,288 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:10" (1/1) ... [2024-11-09 04:50:10,289 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:10" (1/1) ... [2024-11-09 04:50:10,304 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:10" (1/1) ... [2024-11-09 04:50:10,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:10" (1/1) ... [2024-11-09 04:50:10,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:10" (1/1) ... [2024-11-09 04:50:10,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:10" (1/1) ... [2024-11-09 04:50:10,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:50:10,334 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:50:10,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:50:10,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:50:10,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:10" (1/1) ... [2024-11-09 04:50:10,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:50:10,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:50:10,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:50:10,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:50:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2024-11-09 04:50:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2024-11-09 04:50:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2024-11-09 04:50:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2024-11-09 04:50:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:50:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:50:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 04:50:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:50:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:50:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 04:50:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:50:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:50:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:50:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:50:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:50:10,429 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 04:50:10,636 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:50:10,639 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:50:11,204 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 04:50:11,204 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:50:11,447 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:50:11,447 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:50:11,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:50:11 BoogieIcfgContainer [2024-11-09 04:50:11,448 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:50:11,451 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:50:11,451 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:50:11,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:50:11,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:50:08" (1/3) ... [2024-11-09 04:50:11,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecd948b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:50:11, skipping insertion in model container [2024-11-09 04:50:11,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:10" (2/3) ... [2024-11-09 04:50:11,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecd948b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:50:11, skipping insertion in model container [2024-11-09 04:50:11,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:50:11" (3/3) ... [2024-11-09 04:50:11,461 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3-2.i [2024-11-09 04:50:11,485 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:50:11,485 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-09 04:50:11,485 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 04:50:11,582 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-09 04:50:11,622 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 91 transitions, 202 flow [2024-11-09 04:50:12,210 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8370 states, 8308 states have (on average 3.002407318247472) internal successors, (24944), 8369 states have internal predecessors, (24944), 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) [2024-11-09 04:50:12,261 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:50:12,272 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=FINITE_AUTOMATA, 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;@1f98df19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:50:12,272 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-09 04:50:12,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 8370 states, 8308 states have (on average 3.002407318247472) internal successors, (24944), 8369 states have internal predecessors, (24944), 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) [2024-11-09 04:50:12,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 04:50:12,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:12,318 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 04:50:12,320 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX === [ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-09 04:50:12,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:12,328 INFO L85 PathProgramCache]: Analyzing trace with hash 16163435, now seen corresponding path program 1 times [2024-11-09 04:50:12,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:50:12,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34667757] [2024-11-09 04:50:12,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:12,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:50:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:12,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:50:12,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:50:12,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34667757] [2024-11-09 04:50:12,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34667757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:12,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:50:12,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 04:50:12,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444702072] [2024-11-09 04:50:12,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:12,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:50:12,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:50:12,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:50:12,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:50:12,713 INFO L87 Difference]: Start difference. First operand has 8370 states, 8308 states have (on average 3.002407318247472) internal successors, (24944), 8369 states have internal predecessors, (24944), 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) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-09 04:50:13,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:13,304 INFO L93 Difference]: Finished difference Result 16341 states and 48725 transitions. [2024-11-09 04:50:13,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:50:13,308 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2024-11-09 04:50:13,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:13,429 INFO L225 Difference]: With dead ends: 16341 [2024-11-09 04:50:13,429 INFO L226 Difference]: Without dead ends: 7885 [2024-11-09 04:50:13,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:50:13,466 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:13,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:50:13,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7885 states. [2024-11-09 04:50:14,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7885 to 7885. [2024-11-09 04:50:14,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7885 states, 7830 states have (on average 2.9047254150702426) internal successors, (22744), 7884 states have internal predecessors, (22744), 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) [2024-11-09 04:50:14,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7885 states to 7885 states and 22744 transitions. [2024-11-09 04:50:14,204 INFO L78 Accepts]: Start accepts. Automaton has 7885 states and 22744 transitions. Word has length 4 [2024-11-09 04:50:14,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:14,205 INFO L471 AbstractCegarLoop]: Abstraction has 7885 states and 22744 transitions. [2024-11-09 04:50:14,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-09 04:50:14,209 INFO L276 IsEmpty]: Start isEmpty. Operand 7885 states and 22744 transitions. [2024-11-09 04:50:14,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 04:50:14,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:14,210 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 04:50:14,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:50:14,211 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-09 04:50:14,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:14,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1645116348, now seen corresponding path program 1 times [2024-11-09 04:50:14,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:50:14,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637697005] [2024-11-09 04:50:14,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:14,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:50:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:14,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:50:14,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:50:14,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637697005] [2024-11-09 04:50:14,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637697005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:14,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:50:14,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:50:14,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235054507] [2024-11-09 04:50:14,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:14,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:50:14,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:50:14,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:50:14,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:50:14,629 INFO L87 Difference]: Start difference. First operand 7885 states and 22744 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-09 04:50:14,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:14,970 INFO L93 Difference]: Finished difference Result 7885 states and 22744 transitions. [2024-11-09 04:50:14,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:50:14,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2024-11-09 04:50:14,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:15,078 INFO L225 Difference]: With dead ends: 7885 [2024-11-09 04:50:15,079 INFO L226 Difference]: Without dead ends: 7570 [2024-11-09 04:50:15,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:50:15,088 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 71 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:15,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 50 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:50:15,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7570 states. [2024-11-09 04:50:15,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7570 to 7570. [2024-11-09 04:50:15,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7570 states, 7523 states have (on average 2.9072178652133456) internal successors, (21871), 7569 states have internal predecessors, (21871), 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) [2024-11-09 04:50:15,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7570 states to 7570 states and 21871 transitions. [2024-11-09 04:50:15,547 INFO L78 Accepts]: Start accepts. Automaton has 7570 states and 21871 transitions. Word has length 6 [2024-11-09 04:50:15,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:15,549 INFO L471 AbstractCegarLoop]: Abstraction has 7570 states and 21871 transitions. [2024-11-09 04:50:15,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-09 04:50:15,549 INFO L276 IsEmpty]: Start isEmpty. Operand 7570 states and 21871 transitions. [2024-11-09 04:50:15,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 04:50:15,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:15,550 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 04:50:15,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:50:15,551 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-09 04:50:15,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:15,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1645116347, now seen corresponding path program 1 times [2024-11-09 04:50:15,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:50:15,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455223409] [2024-11-09 04:50:15,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:15,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:50:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:16,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:50:16,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:50:16,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455223409] [2024-11-09 04:50:16,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455223409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:16,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:50:16,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:50:16,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19148476] [2024-11-09 04:50:16,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:16,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:50:16,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:50:16,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:50:16,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:50:16,226 INFO L87 Difference]: Start difference. First operand 7570 states and 21871 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-09 04:50:17,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:17,226 INFO L93 Difference]: Finished difference Result 15449 states and 44370 transitions. [2024-11-09 04:50:17,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:50:17,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) Word has length 6 [2024-11-09 04:50:17,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:17,366 INFO L225 Difference]: With dead ends: 15449 [2024-11-09 04:50:17,366 INFO L226 Difference]: Without dead ends: 14955 [2024-11-09 04:50:17,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:50:17,377 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 111 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:17,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 168 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:50:17,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14955 states. [2024-11-09 04:50:17,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14955 to 7574. [2024-11-09 04:50:17,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7574 states, 7527 states have (on average 2.9062043310747976) internal successors, (21875), 7573 states have internal predecessors, (21875), 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) [2024-11-09 04:50:17,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7574 states to 7574 states and 21875 transitions. [2024-11-09 04:50:17,812 INFO L78 Accepts]: Start accepts. Automaton has 7574 states and 21875 transitions. Word has length 6 [2024-11-09 04:50:17,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:17,814 INFO L471 AbstractCegarLoop]: Abstraction has 7574 states and 21875 transitions. [2024-11-09 04:50:17,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-09 04:50:17,814 INFO L276 IsEmpty]: Start isEmpty. Operand 7574 states and 21875 transitions. [2024-11-09 04:50:17,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 04:50:17,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:17,816 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:50:17,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:50:17,816 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-09 04:50:17,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:17,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1877391936, now seen corresponding path program 1 times [2024-11-09 04:50:17,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:50:17,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639992753] [2024-11-09 04:50:17,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:17,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:50:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:50:17,862 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:50:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:50:17,908 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 04:50:17,909 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:50:17,910 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2024-11-09 04:50:17,912 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX (13 of 15 remaining) [2024-11-09 04:50:17,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (12 of 15 remaining) [2024-11-09 04:50:17,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 15 remaining) [2024-11-09 04:50:17,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2024-11-09 04:50:17,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2024-11-09 04:50:17,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2024-11-09 04:50:17,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2024-11-09 04:50:17,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (6 of 15 remaining) [2024-11-09 04:50:17,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2024-11-09 04:50:17,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2024-11-09 04:50:17,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 15 remaining) [2024-11-09 04:50:17,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2024-11-09 04:50:17,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 15 remaining) [2024-11-09 04:50:17,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2024-11-09 04:50:17,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:50:17,921 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 04:50:17,962 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 04:50:17,965 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:50:17,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:50:17 BasicIcfg [2024-11-09 04:50:17,970 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:50:17,971 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:50:17,971 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:50:17,971 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:50:17,972 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:50:11" (3/4) ... [2024-11-09 04:50:17,976 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 04:50:17,978 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:50:17,980 INFO L158 Benchmark]: Toolchain (without parser) took 9228.96ms. Allocated memory was 115.3MB in the beginning and 381.7MB in the end (delta: 266.3MB). Free memory was 78.4MB in the beginning and 174.4MB in the end (delta: -96.0MB). Peak memory consumption was 170.7MB. Max. memory is 16.1GB. [2024-11-09 04:50:17,980 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 115.3MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:50:17,981 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1412.84ms. Allocated memory is still 115.3MB. Free memory was 78.4MB in the beginning and 72.1MB in the end (delta: 6.3MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2024-11-09 04:50:17,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.96ms. Allocated memory is still 115.3MB. Free memory was 72.1MB in the beginning and 69.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:50:17,982 INFO L158 Benchmark]: Boogie Preprocessor took 66.78ms. Allocated memory is still 115.3MB. Free memory was 69.0MB in the beginning and 66.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:50:17,982 INFO L158 Benchmark]: RCFGBuilder took 1114.00ms. Allocated memory is still 115.3MB. Free memory was 66.9MB in the beginning and 64.3MB in the end (delta: 2.6MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2024-11-09 04:50:17,983 INFO L158 Benchmark]: TraceAbstraction took 6519.20ms. Allocated memory was 115.3MB in the beginning and 381.7MB in the end (delta: 266.3MB). Free memory was 63.8MB in the beginning and 175.4MB in the end (delta: -111.7MB). Peak memory consumption was 154.8MB. Max. memory is 16.1GB. [2024-11-09 04:50:17,986 INFO L158 Benchmark]: Witness Printer took 7.20ms. Allocated memory is still 381.7MB. Free memory was 175.4MB in the beginning and 174.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:50:17,989 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 115.3MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1412.84ms. Allocated memory is still 115.3MB. Free memory was 78.4MB in the beginning and 72.1MB in the end (delta: 6.3MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.96ms. Allocated memory is still 115.3MB. Free memory was 72.1MB in the beginning and 69.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.78ms. Allocated memory is still 115.3MB. Free memory was 69.0MB in the beginning and 66.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1114.00ms. Allocated memory is still 115.3MB. Free memory was 66.9MB in the beginning and 64.3MB in the end (delta: 2.6MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6519.20ms. Allocated memory was 115.3MB in the beginning and 381.7MB in the end (delta: 266.3MB). Free memory was 63.8MB in the beginning and 175.4MB in the end (delta: -111.7MB). Peak memory consumption was 154.8MB. Max. memory is 16.1GB. * Witness Printer took 7.20ms. Allocated memory is still 381.7MB. Free memory was 175.4MB in the beginning and 174.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: overapproximation of sscanf at line 1285. Possible FailurePath: [L1236] static int iTThreads = 2; [L1237] static int iRThreads = 1; [L1238] static int data1Value = 0; [L1239] static int data2Value = 0; [L1240] pthread_mutex_t *data1Lock; [L1241] pthread_mutex_t *data2Lock; [L1278] int i,err; VAL [\old(argc)=3, \old(argv)={1073741826:1073741827}, argc=3, data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads=1, iTThreads=2] [L1279] COND TRUE argc != 1 VAL [\old(argc)=3, \old(argv)={1073741826:1073741827}, argc=3, data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads=1, iTThreads=2] [L1280] COND FALSE !(argc != 3) VAL [\old(argc)=3, \old(argv)={1073741826:1073741827}, argc=3, data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads=1, iTThreads=2] [L1284] argv[1] [L1285] argv[2] [L1288] data1Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1289] data2Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1290] EXPR err = pthread_mutex_init(data1Lock, ((void *)0)) [L1290] COND FALSE !(0 != (err = pthread_mutex_init(data1Lock, ((void *)0)))) [L1294] EXPR err = pthread_mutex_init(data2Lock, ((void *)0)) [L1294] COND FALSE !(0 != (err = pthread_mutex_init(data2Lock, ((void *)0)))) [L1298] pthread_t tPool[iTThreads]; [L1299] pthread_t rPool[iRThreads]; [L1300] i = 0 VAL [\old(argc)=3, \old(argv)={1073741826:1073741827}, argc=3, data1Lock={-2:0}, data1Value=0, data2Lock={-3:0}, data2Value=0, err=0, i=0, iRThreads=0, iTThreads=1073741824, rPool={5:0}, tPool={4:0}] [L1300] COND FALSE !(i < iTThreads) VAL [\old(argc)=3, \old(argv)={1073741826:1073741827}, argc=3, data1Lock={-2:0}, data1Value=0, data2Lock={-3:0}, data2Value=0, err=0, i=0, iRThreads=0, iTThreads=1073741824, rPool={5:0}, tPool={4:0}] [L1300] COND TRUE i < iTThreads - UnprovableResult [Line: 1284]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: 1285]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1277]: 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: 1307]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1301]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 113 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 182 mSDsluCounter, 264 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 112 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 438 IncrementalHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 152 mSDtfsCounter, 438 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8370occurred 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: 1.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 7381 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 04:50:18,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0db6974abead9f0b145be669e8625acba9e17feac06fbf7c6b45d50c107fdab8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:50:21,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:50:21,182 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2024-11-09 04:50:21,202 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:50:21,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:50:21,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:50:21,255 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:50:21,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:50:21,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:50:21,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:50:21,258 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:50:21,258 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:50:21,259 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:50:21,259 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:50:21,260 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:50:21,260 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:50:21,261 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 04:50:21,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 04:50:21,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:50:21,262 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:50:21,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:50:21,263 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:50:21,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:50:21,264 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 04:50:21,265 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 04:50:21,265 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 04:50:21,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:50:21,266 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:50:21,266 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 04:50:21,266 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:50:21,267 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 04:50:21,267 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:50:21,268 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:50:21,268 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:50:21,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:50:21,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:50:21,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:50:21,270 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:50:21,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:50:21,271 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:50:21,271 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:50:21,272 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 04:50:21,272 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 04:50:21,272 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:50:21,273 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:50:21,273 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0db6974abead9f0b145be669e8625acba9e17feac06fbf7c6b45d50c107fdab8 [2024-11-09 04:50:21,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:50:21,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:50:21,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:50:21,788 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:50:21,788 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:50:21,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/pthread/twostage_3-2.i Unable to find full path for "g++" [2024-11-09 04:50:24,347 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:50:24,749 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:50:24,749 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/sv-benchmarks/c/pthread/twostage_3-2.i [2024-11-09 04:50:24,786 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/data/f1f5b9039/dca095faa8594583b9c3a8e6b94803a6/FLAG83acf1afe [2024-11-09 04:50:24,799 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/data/f1f5b9039/dca095faa8594583b9c3a8e6b94803a6 [2024-11-09 04:50:24,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:50:24,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:50:24,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:50:24,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:50:24,810 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:50:24,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:50:24" (1/1) ... [2024-11-09 04:50:24,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ea0151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:24, skipping insertion in model container [2024-11-09 04:50:24,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:50:24" (1/1) ... [2024-11-09 04:50:24,935 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:50:26,085 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 04:50:26,086 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 04:50:26,112 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-09 04:50:26,114 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-09 04:50:26,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:50:26,135 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:50:26,268 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-09 04:50:26,274 WARN L1698 CHandler]: Possible shadowing of function lock [2024-11-09 04:50:26,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:50:26,454 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:50:26,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:26 WrapperNode [2024-11-09 04:50:26,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:50:26,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:50:26,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:50:26,457 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:50:26,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:26" (1/1) ... [2024-11-09 04:50:26,509 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:26" (1/1) ... [2024-11-09 04:50:26,556 INFO L138 Inliner]: procedures = 376, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 168 [2024-11-09 04:50:26,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:50:26,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:50:26,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:50:26,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:50:26,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:26" (1/1) ... [2024-11-09 04:50:26,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:26" (1/1) ... [2024-11-09 04:50:26,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:26" (1/1) ... [2024-11-09 04:50:26,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:26" (1/1) ... [2024-11-09 04:50:26,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:26" (1/1) ... [2024-11-09 04:50:26,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:26" (1/1) ... [2024-11-09 04:50:26,612 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:26" (1/1) ... [2024-11-09 04:50:26,614 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:26" (1/1) ... [2024-11-09 04:50:26,619 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:50:26,620 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:50:26,620 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:50:26,620 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:50:26,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:26" (1/1) ... [2024-11-09 04:50:26,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:50:26,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:50:26,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:50:26,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:50:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 04:50:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2024-11-09 04:50:26,703 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2024-11-09 04:50:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2024-11-09 04:50:26,704 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2024-11-09 04:50:26,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:50:26,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:50:26,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 04:50:26,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 04:50:26,705 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 04:50:26,705 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 04:50:26,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:50:26,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:50:26,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:50:26,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:50:26,709 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 04:50:27,044 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:50:27,047 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:50:27,661 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 04:50:27,661 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:50:27,983 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:50:27,984 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:50:27,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:50:27 BoogieIcfgContainer [2024-11-09 04:50:27,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:50:27,987 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:50:27,987 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:50:27,992 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:50:27,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:50:24" (1/3) ... [2024-11-09 04:50:27,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57233e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:50:27, skipping insertion in model container [2024-11-09 04:50:27,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:26" (2/3) ... [2024-11-09 04:50:27,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57233e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:50:27, skipping insertion in model container [2024-11-09 04:50:27,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:50:27" (3/3) ... [2024-11-09 04:50:27,996 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3-2.i [2024-11-09 04:50:28,027 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:50:28,028 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-09 04:50:28,028 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 04:50:28,135 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-09 04:50:28,185 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 91 transitions, 202 flow [2024-11-09 04:50:28,779 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8370 states, 8308 states have (on average 3.002407318247472) internal successors, (24944), 8369 states have internal predecessors, (24944), 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) [2024-11-09 04:50:28,820 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:50:28,829 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=FINITE_AUTOMATA, 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;@301b336, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:50:28,829 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-09 04:50:28,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 8370 states, 8308 states have (on average 3.002407318247472) internal successors, (24944), 8369 states have internal predecessors, (24944), 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) [2024-11-09 04:50:28,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 04:50:28,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:28,912 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 04:50:28,913 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX === [ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-09 04:50:28,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:28,920 INFO L85 PathProgramCache]: Analyzing trace with hash 16101867, now seen corresponding path program 1 times [2024-11-09 04:50:28,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:50:28,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414903972] [2024-11-09 04:50:28,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:28,934 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:50:28,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:50:28,936 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 04:50:28,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 04:50:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:29,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 04:50:29,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:50:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:50:29,088 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:50:29,089 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:50:29,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414903972] [2024-11-09 04:50:29,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1414903972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:29,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:50:29,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 04:50:29,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075354092] [2024-11-09 04:50:29,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:29,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:50:29,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:50:29,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:50:29,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:50:29,196 INFO L87 Difference]: Start difference. First operand has 8370 states, 8308 states have (on average 3.002407318247472) internal successors, (24944), 8369 states have internal predecessors, (24944), 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) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-09 04:50:29,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:29,861 INFO L93 Difference]: Finished difference Result 16341 states and 48725 transitions. [2024-11-09 04:50:29,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:50:29,871 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2024-11-09 04:50:29,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:30,200 INFO L225 Difference]: With dead ends: 16341 [2024-11-09 04:50:30,201 INFO L226 Difference]: Without dead ends: 7885 [2024-11-09 04:50:30,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:50:30,237 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:30,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:50:30,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7885 states. [2024-11-09 04:50:30,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7885 to 7885. [2024-11-09 04:50:30,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7885 states, 7830 states have (on average 2.9047254150702426) internal successors, (22744), 7884 states have internal predecessors, (22744), 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) [2024-11-09 04:50:30,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7885 states to 7885 states and 22744 transitions. [2024-11-09 04:50:30,900 INFO L78 Accepts]: Start accepts. Automaton has 7885 states and 22744 transitions. Word has length 4 [2024-11-09 04:50:30,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:30,902 INFO L471 AbstractCegarLoop]: Abstraction has 7885 states and 22744 transitions. [2024-11-09 04:50:30,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-09 04:50:30,903 INFO L276 IsEmpty]: Start isEmpty. Operand 7885 states and 22744 transitions. [2024-11-09 04:50:30,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 04:50:30,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:30,905 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 04:50:30,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 04:50:31,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:50:31,107 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-09 04:50:31,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:31,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1704283260, now seen corresponding path program 1 times [2024-11-09 04:50:31,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:50:31,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303980060] [2024-11-09 04:50:31,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:31,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:50:31,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:50:31,119 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 04:50:31,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 04:50:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:31,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 04:50:31,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:50:31,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,449 INFO L349 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2024-11-09 04:50:31,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 15 [2024-11-09 04:50:31,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,481 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2024-11-09 04:50:31,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 04:50:31,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,508 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2024-11-09 04:50:31,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 04:50:31,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,579 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2024-11-09 04:50:31,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 1 [2024-11-09 04:50:31,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,643 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2024-11-09 04:50:31,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 1 [2024-11-09 04:50:31,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,691 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2024-11-09 04:50:31,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 1 [2024-11-09 04:50:31,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,816 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2024-11-09 04:50:31,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 1 [2024-11-09 04:50:31,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,834 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2024-11-09 04:50:31,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 04:50:31,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,852 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2024-11-09 04:50:31,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 1 [2024-11-09 04:50:31,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,897 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2024-11-09 04:50:31,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 1 [2024-11-09 04:50:31,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,914 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2024-11-09 04:50:31,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 04:50:31,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:31,932 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2024-11-09 04:50:31,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 1 [2024-11-09 04:50:31,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:50:31,948 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:50:31,949 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:50:31,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303980060] [2024-11-09 04:50:31,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303980060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:31,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:50:31,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:50:31,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822821981] [2024-11-09 04:50:31,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:31,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:50:31,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:50:31,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:50:31,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:50:31,954 INFO L87 Difference]: Start difference. First operand 7885 states and 22744 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-09 04:50:32,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:32,310 INFO L93 Difference]: Finished difference Result 7885 states and 22744 transitions. [2024-11-09 04:50:32,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:50:32,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2024-11-09 04:50:32,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:32,470 INFO L225 Difference]: With dead ends: 7885 [2024-11-09 04:50:32,471 INFO L226 Difference]: Without dead ends: 7570 [2024-11-09 04:50:32,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:50:32,476 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 71 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:32,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 50 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:50:32,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7570 states. [2024-11-09 04:50:32,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7570 to 7570. [2024-11-09 04:50:32,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7570 states, 7523 states have (on average 2.9072178652133456) internal successors, (21871), 7569 states have internal predecessors, (21871), 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) [2024-11-09 04:50:32,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7570 states to 7570 states and 21871 transitions. [2024-11-09 04:50:32,874 INFO L78 Accepts]: Start accepts. Automaton has 7570 states and 21871 transitions. Word has length 6 [2024-11-09 04:50:32,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:32,874 INFO L471 AbstractCegarLoop]: Abstraction has 7570 states and 21871 transitions. [2024-11-09 04:50:32,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-09 04:50:32,875 INFO L276 IsEmpty]: Start isEmpty. Operand 7570 states and 21871 transitions. [2024-11-09 04:50:32,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 04:50:32,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:32,876 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 04:50:32,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 04:50:33,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:50:33,079 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-09 04:50:33,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:33,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1704283259, now seen corresponding path program 1 times [2024-11-09 04:50:33,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:50:33,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694601082] [2024-11-09 04:50:33,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:33,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:50:33,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:50:33,089 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 04:50:33,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 04:50:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:33,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 04:50:33,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:50:33,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:33,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2024-11-09 04:50:33,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:33,333 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:50:33,345 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:50:33,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:33,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:33,378 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:50:33,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:33,394 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:50:33,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:33,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:33,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-11-09 04:50:33,457 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:50:33,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:33,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:33,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-11-09 04:50:33,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:33,489 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:50:33,502 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:50:33,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:33,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:33,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-11-09 04:50:33,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:50:33,534 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:50:33,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:50:33,590 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:50:33,590 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:50:33,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694601082] [2024-11-09 04:50:33,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694601082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:33,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:50:33,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:50:33,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561754564] [2024-11-09 04:50:33,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:33,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:50:33,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:50:33,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:50:33,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:50:33,597 INFO L87 Difference]: Start difference. First operand 7570 states and 21871 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-09 04:50:34,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:34,469 INFO L93 Difference]: Finished difference Result 15449 states and 44370 transitions. [2024-11-09 04:50:34,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:50:34,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2024-11-09 04:50:34,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:34,644 INFO L225 Difference]: With dead ends: 15449 [2024-11-09 04:50:34,644 INFO L226 Difference]: Without dead ends: 14955 [2024-11-09 04:50:34,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:50:34,660 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 110 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:34,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 136 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:50:34,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14955 states. [2024-11-09 04:50:35,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14955 to 7574. [2024-11-09 04:50:35,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7574 states, 7527 states have (on average 2.9062043310747976) internal successors, (21875), 7573 states have internal predecessors, (21875), 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) [2024-11-09 04:50:35,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7574 states to 7574 states and 21875 transitions. [2024-11-09 04:50:35,222 INFO L78 Accepts]: Start accepts. Automaton has 7574 states and 21875 transitions. Word has length 6 [2024-11-09 04:50:35,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:35,223 INFO L471 AbstractCegarLoop]: Abstraction has 7574 states and 21875 transitions. [2024-11-09 04:50:35,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-09 04:50:35,223 INFO L276 IsEmpty]: Start isEmpty. Operand 7574 states and 21875 transitions. [2024-11-09 04:50:35,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 04:50:35,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:35,224 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:50:35,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 04:50:35,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:50:35,428 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-09 04:50:35,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:35,429 INFO L85 PathProgramCache]: Analyzing trace with hash 172505918, now seen corresponding path program 1 times [2024-11-09 04:50:35,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:50:35,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929412974] [2024-11-09 04:50:35,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:35,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:50:35,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:50:35,434 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 04:50:35,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 04:50:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:50:35,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:50:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:50:35,703 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 04:50:35,706 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:50:35,707 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2024-11-09 04:50:35,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX (13 of 15 remaining) [2024-11-09 04:50:35,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (12 of 15 remaining) [2024-11-09 04:50:35,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 15 remaining) [2024-11-09 04:50:35,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2024-11-09 04:50:35,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2024-11-09 04:50:35,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2024-11-09 04:50:35,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2024-11-09 04:50:35,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (6 of 15 remaining) [2024-11-09 04:50:35,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2024-11-09 04:50:35,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2024-11-09 04:50:35,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 15 remaining) [2024-11-09 04:50:35,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2024-11-09 04:50:35,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 15 remaining) [2024-11-09 04:50:35,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2024-11-09 04:50:35,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-09 04:50:35,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:50:35,921 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 04:50:35,956 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 04:50:35,956 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:50:35,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:50:35 BasicIcfg [2024-11-09 04:50:35,960 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:50:35,961 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:50:35,961 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:50:35,962 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:50:35,963 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:50:27" (3/4) ... [2024-11-09 04:50:35,965 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 04:50:35,967 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:50:35,968 INFO L158 Benchmark]: Toolchain (without parser) took 11164.63ms. Allocated memory was 67.1MB in the beginning and 629.1MB in the end (delta: 562.0MB). Free memory was 32.4MB in the beginning and 392.5MB in the end (delta: -360.1MB). Peak memory consumption was 201.0MB. Max. memory is 16.1GB. [2024-11-09 04:50:35,968 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 42.7MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:50:35,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1651.22ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 32.2MB in the beginning and 54.9MB in the end (delta: -22.7MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-11-09 04:50:35,969 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.42ms. Allocated memory is still 88.1MB. Free memory was 54.9MB in the beginning and 52.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:50:35,970 INFO L158 Benchmark]: Boogie Preprocessor took 60.84ms. Allocated memory is still 88.1MB. Free memory was 52.2MB in the beginning and 49.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:50:35,970 INFO L158 Benchmark]: RCFGBuilder took 1364.81ms. Allocated memory is still 88.1MB. Free memory was 49.7MB in the beginning and 38.7MB in the end (delta: 11.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-11-09 04:50:35,971 INFO L158 Benchmark]: TraceAbstraction took 7973.40ms. Allocated memory was 88.1MB in the beginning and 629.1MB in the end (delta: 541.1MB). Free memory was 38.2MB in the beginning and 393.5MB in the end (delta: -355.3MB). Peak memory consumption was 185.6MB. Max. memory is 16.1GB. [2024-11-09 04:50:35,971 INFO L158 Benchmark]: Witness Printer took 5.92ms. Allocated memory is still 629.1MB. Free memory was 393.5MB in the beginning and 392.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:50:35,974 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 42.7MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1651.22ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 32.2MB in the beginning and 54.9MB in the end (delta: -22.7MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.42ms. Allocated memory is still 88.1MB. Free memory was 54.9MB in the beginning and 52.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.84ms. Allocated memory is still 88.1MB. Free memory was 52.2MB in the beginning and 49.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1364.81ms. Allocated memory is still 88.1MB. Free memory was 49.7MB in the beginning and 38.7MB in the end (delta: 11.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7973.40ms. Allocated memory was 88.1MB in the beginning and 629.1MB in the end (delta: 541.1MB). Free memory was 38.2MB in the beginning and 393.5MB in the end (delta: -355.3MB). Peak memory consumption was 185.6MB. Max. memory is 16.1GB. * Witness Printer took 5.92ms. Allocated memory is still 629.1MB. Free memory was 393.5MB in the beginning and 392.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: overapproximation of sscanf at line 1285. Possible FailurePath: [L1236] static int iTThreads = 2; [L1237] static int iRThreads = 1; [L1238] static int data1Value = 0; [L1239] static int data2Value = 0; [L1240] pthread_mutex_t *data1Lock; [L1241] pthread_mutex_t *data2Lock; [L1278] int i,err; VAL [\old(argc)=3, \old(argv)={6:5}, argc=3, data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads=1, iTThreads=2] [L1279] COND TRUE argc != 1 VAL [\old(argc)=3, \old(argv)={6:5}, argc=3, data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads=1, iTThreads=2] [L1280] COND FALSE !(argc != 3) VAL [\old(argc)=3, \old(argv)={6:5}, argc=3, data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads=1, iTThreads=2] [L1284] argv[1] [L1285] argv[2] [L1288] data1Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1289] data2Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1290] EXPR err = pthread_mutex_init(data1Lock, ((void *)0)) [L1290] COND FALSE !(0 != (err = pthread_mutex_init(data1Lock, ((void *)0)))) [L1294] EXPR err = pthread_mutex_init(data2Lock, ((void *)0)) [L1294] COND FALSE !(0 != (err = pthread_mutex_init(data2Lock, ((void *)0)))) [L1298] pthread_t tPool[iTThreads]; [L1299] pthread_t rPool[iRThreads]; [L1300] i = 0 VAL [\old(argc)=3, \old(argv)={6:5}, argc=3, data1Lock={-2147483645:0}, data1Value=0, data2Lock={3:0}, data2Value=0, err=0, i=0, iRThreads=0, iTThreads=1073741824, rPool={-2147483641:0}, tPool={-2147483633:0}] [L1300] COND FALSE !(i < iTThreads) VAL [\old(argc)=3, \old(argv)={6:5}, argc=3, data1Lock={-2147483645:0}, data1Value=0, data2Lock={3:0}, data2Value=0, err=0, i=0, iRThreads=0, iTThreads=1073741824, rPool={-2147483641:0}, tPool={-2147483633:0}] [L1300] COND TRUE i < iTThreads - UnprovableResult [Line: 1284]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: 1285]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1277]: 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: 1307]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1301]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 113 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 181 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 181 mSDsluCounter, 232 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 331 IncrementalHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 152 mSDtfsCounter, 331 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8370occurred 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: 1.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 7381 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 7 NumberOfNonLiveVariables, 157 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 04:50:36,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db82f3c4-65e7-43be-9e1f-ea5fe9baae74/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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