./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E --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 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:49:34,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:49:34,274 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-14 05:49:34,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:49:34,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:49:34,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:49:34,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:49:34,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:49:34,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:49:34,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:49:34,321 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:49:34,321 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:49:34,321 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:49:34,322 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:49:34,322 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:49:34,322 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:49:34,322 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:49:34,322 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:49:34,322 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:49:34,323 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:49:34,323 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:49:34,323 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:49:34,323 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 05:49:34,323 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 05:49:34,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:49:34,323 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:49:34,323 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:49:34,324 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:49:34,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:49:34,324 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 05:49:34,324 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 05:49:34,324 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 05:49:34,324 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:49:34,326 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:49:34,326 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:49:34,327 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:49:34,327 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:49:34,327 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:49:34,327 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:49:34,327 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:49:34,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:49:34,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:49:34,328 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:49:34,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:49:34,328 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:49:34,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:49:34,329 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:49:34,329 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:49:34,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:49:34,329 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E 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 -> 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c [2024-11-14 05:49:34,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:49:34,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:49:34,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:49:34,672 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:49:34,672 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:49:34,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c Unable to find full path for "g++" [2024-11-14 05:49:36,652 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:49:36,928 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:49:36,929 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2024-11-14 05:49:36,937 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/data/b5407f5c7/3f5ffcb18cdc4ae596cd881ece616c40/FLAG7d0d593ab [2024-11-14 05:49:36,956 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/data/b5407f5c7/3f5ffcb18cdc4ae596cd881ece616c40 [2024-11-14 05:49:36,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:49:36,962 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:49:36,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:49:36,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:49:36,970 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:49:36,971 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:49:36" (1/1) ... [2024-11-14 05:49:36,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382f18c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:49:36, skipping insertion in model container [2024-11-14 05:49:36,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:49:36" (1/1) ... [2024-11-14 05:49:36,993 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:49:37,233 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:49:37,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:49:37,254 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:49:37,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:49:37,330 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:49:37,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:49:37 WrapperNode [2024-11-14 05:49:37,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:49:37,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:49:37,333 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:49:37,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:49:37,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:49:37" (1/1) ... [2024-11-14 05:49:37,351 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:49:37" (1/1) ... [2024-11-14 05:49:37,397 INFO L138 Inliner]: procedures = 28, calls = 66, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 296 [2024-11-14 05:49:37,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:49:37,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:49:37,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:49:37,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:49:37,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:49:37" (1/1) ... [2024-11-14 05:49:37,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:49:37" (1/1) ... [2024-11-14 05:49:37,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:49:37" (1/1) ... [2024-11-14 05:49:37,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:49:37" (1/1) ... [2024-11-14 05:49:37,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:49:37" (1/1) ... [2024-11-14 05:49:37,443 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:49:37" (1/1) ... [2024-11-14 05:49:37,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:49:37" (1/1) ... [2024-11-14 05:49:37,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:49:37" (1/1) ... [2024-11-14 05:49:37,455 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:49:37,456 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:49:37,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:49:37,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:49:37,462 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:49:37" (1/1) ... [2024-11-14 05:49:37,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:49:37,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:49:37,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:49:37,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:49:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:49:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:49:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:49:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-14 05:49:37,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-14 05:49:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-14 05:49:37,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-14 05:49:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-14 05:49:37,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-14 05:49:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-14 05:49:37,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-14 05:49:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:49:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-14 05:49:37,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-14 05:49:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-14 05:49:37,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-14 05:49:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-14 05:49:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-14 05:49:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:49:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:49:37,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:49:37,535 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-14 05:49:37,680 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:49:37,682 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:49:38,345 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 05:49:38,345 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:49:38,841 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:49:38,841 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-14 05:49:38,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:49:38 BoogieIcfgContainer [2024-11-14 05:49:38,842 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:49:38,844 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:49:38,844 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:49:38,849 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:49:38,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:49:36" (1/3) ... [2024-11-14 05:49:38,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:49:38, skipping insertion in model container [2024-11-14 05:49:38,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:49:37" (2/3) ... [2024-11-14 05:49:38,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:49:38, skipping insertion in model container [2024-11-14 05:49:38,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:49:38" (3/3) ... [2024-11-14 05:49:38,852 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2024-11-14 05:49:38,872 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:49:38,876 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-parallel-sum-1-dsl.wvr.c that has 7 procedures, 79 locations, 1 initial locations, 5 loop locations, and 12 error locations. [2024-11-14 05:49:38,876 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 05:49:39,069 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-11-14 05:49:39,108 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 103 places, 97 transitions, 260 flow [2024-11-14 05:49:45,680 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 112111 states, 112027 states have (on average 5.744650843100324) internal successors, (643556), 112110 states have internal predecessors, (643556), 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) [2024-11-14 05:49:45,719 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:49:45,737 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;@474a01f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:49:45,737 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-14 05:49:45,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 112111 states, 112027 states have (on average 5.744650843100324) internal successors, (643556), 112110 states have internal predecessors, (643556), 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) [2024-11-14 05:49:45,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 05:49:45,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:49:45,951 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 05:49:45,953 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2024-11-14 05:49:45,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:49:45,961 INFO L85 PathProgramCache]: Analyzing trace with hash 976507, now seen corresponding path program 1 times [2024-11-14 05:49:45,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:49:45,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347034767] [2024-11-14 05:49:45,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:49:45,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:49:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:49:46,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:49:46,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:49:46,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347034767] [2024-11-14 05:49:46,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347034767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:49:46,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:49:46,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:49:46,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531389961] [2024-11-14 05:49:46,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:49:46,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:49:46,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:49:46,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:49:46,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:49:46,794 INFO L87 Difference]: Start difference. First operand has 112111 states, 112027 states have (on average 5.744650843100324) internal successors, (643556), 112110 states have internal predecessors, (643556), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-14 05:49:51,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:49:51,728 INFO L93 Difference]: Finished difference Result 197070 states and 1116374 transitions. [2024-11-14 05:49:51,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:49:51,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2024-11-14 05:49:51,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:49:54,336 INFO L225 Difference]: With dead ends: 197070 [2024-11-14 05:49:54,336 INFO L226 Difference]: Without dead ends: 112108 [2024-11-14 05:49:54,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:49:54,632 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:49:54,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:49:54,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112108 states. [2024-11-14 05:50:00,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112108 to 112108. [2024-11-14 05:50:00,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112108 states, 112026 states have (on average 5.381179369075036) internal successors, (602832), 112107 states have internal predecessors, (602832), 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) [2024-11-14 05:50:02,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112108 states to 112108 states and 602832 transitions. [2024-11-14 05:50:03,297 INFO L78 Accepts]: Start accepts. Automaton has 112108 states and 602832 transitions. Word has length 3 [2024-11-14 05:50:03,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:50:03,299 INFO L471 AbstractCegarLoop]: Abstraction has 112108 states and 602832 transitions. [2024-11-14 05:50:03,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-14 05:50:03,300 INFO L276 IsEmpty]: Start isEmpty. Operand 112108 states and 602832 transitions. [2024-11-14 05:50:03,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 05:50:03,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:50:03,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 05:50:03,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:50:03,304 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2024-11-14 05:50:03,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:50:03,305 INFO L85 PathProgramCache]: Analyzing trace with hash 976508, now seen corresponding path program 1 times [2024-11-14 05:50:03,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:50:03,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194632076] [2024-11-14 05:50:03,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:50:03,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:50:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:50:03,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:50:03,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:50:03,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194632076] [2024-11-14 05:50:03,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194632076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:50:03,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:50:03,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:50:03,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721575391] [2024-11-14 05:50:03,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:50:03,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:50:03,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:50:03,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:50:03,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:50:03,775 INFO L87 Difference]: Start difference. First operand 112108 states and 602832 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-14 05:50:06,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:50:06,343 INFO L93 Difference]: Finished difference Result 112111 states and 602836 transitions. [2024-11-14 05:50:06,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:50:06,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-14 05:50:06,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:50:07,648 INFO L225 Difference]: With dead ends: 112111 [2024-11-14 05:50:07,648 INFO L226 Difference]: Without dead ends: 112110 [2024-11-14 05:50:07,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:50:07,687 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:50:07,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 16 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:50:07,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112110 states. [2024-11-14 05:50:12,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112110 to 112110. [2024-11-14 05:50:12,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112110 states, 112028 states have (on average 5.381110079622951) internal successors, (602835), 112109 states have internal predecessors, (602835), 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) [2024-11-14 05:50:14,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112110 states to 112110 states and 602835 transitions. [2024-11-14 05:50:15,051 INFO L78 Accepts]: Start accepts. Automaton has 112110 states and 602835 transitions. Word has length 3 [2024-11-14 05:50:15,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:50:15,052 INFO L471 AbstractCegarLoop]: Abstraction has 112110 states and 602835 transitions. [2024-11-14 05:50:15,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-14 05:50:15,052 INFO L276 IsEmpty]: Start isEmpty. Operand 112110 states and 602835 transitions. [2024-11-14 05:50:15,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 05:50:15,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:50:15,053 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1] [2024-11-14 05:50:15,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:50:15,053 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2024-11-14 05:50:15,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:50:15,054 INFO L85 PathProgramCache]: Analyzing trace with hash 938456033, now seen corresponding path program 1 times [2024-11-14 05:50:15,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:50:15,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732461940] [2024-11-14 05:50:15,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:50:15,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:50:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:50:15,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:50:15,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:50:15,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732461940] [2024-11-14 05:50:15,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732461940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:50:15,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240175651] [2024-11-14 05:50:15,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:50:15,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:50:15,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:50:15,561 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:50:15,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:50:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:50:15,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 05:50:15,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:50:15,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-14 05:50:15,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:50:15,992 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:50:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:50:16,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240175651] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:50:16,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [145720221] [2024-11-14 05:50:16,137 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:259) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:168) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-14 05:50:16,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:50:16,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2024-11-14 05:50:16,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755806741] [2024-11-14 05:50:16,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:50:16,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 05:50:16,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:50:16,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 05:50:16,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:50:16,145 INFO L87 Difference]: Start difference. First operand 112110 states and 602835 transitions. Second operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2024-11-14 05:50:18,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:50:18,392 INFO L93 Difference]: Finished difference Result 112112 states and 602839 transitions. [2024-11-14 05:50:18,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:50:18,392 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 5 [2024-11-14 05:50:18,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:50:19,519 INFO L225 Difference]: With dead ends: 112112 [2024-11-14 05:50:19,520 INFO L226 Difference]: Without dead ends: 112111 [2024-11-14 05:50:19,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-14 05:50:19,565 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:50:19,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 20 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:50:19,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112111 states. [2024-11-14 05:50:23,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112111 to 112107. [2024-11-14 05:50:24,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112107 states, 112026 states have (on average 5.38117044257583) internal successors, (602831), 112106 states have internal predecessors, (602831), 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) [2024-11-14 05:50:25,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112107 states to 112107 states and 602831 transitions. [2024-11-14 05:50:25,644 INFO L78 Accepts]: Start accepts. Automaton has 112107 states and 602831 transitions. Word has length 5 [2024-11-14 05:50:25,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:50:25,645 INFO L471 AbstractCegarLoop]: Abstraction has 112107 states and 602831 transitions. [2024-11-14 05:50:25,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2024-11-14 05:50:25,645 INFO L276 IsEmpty]: Start isEmpty. Operand 112107 states and 602831 transitions. [2024-11-14 05:50:25,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:50:25,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:50:25,646 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:50:25,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:50:25,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c929df5a-8c8a-44ee-a7b1-7d165f92a69d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:50:25,851 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2024-11-14 05:50:25,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:50:25,851 INFO L85 PathProgramCache]: Analyzing trace with hash 433414387, now seen corresponding path program 1 times [2024-11-14 05:50:25,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:50:25,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222310255] [2024-11-14 05:50:25,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:50:25,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:50:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:50:25,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:50:25,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:50:25,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222310255] [2024-11-14 05:50:25,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222310255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:50:25,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:50:25,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:50:25,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748667379] [2024-11-14 05:50:25,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:50:25,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:50:25,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:50:25,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:50:25,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:50:25,995 INFO L87 Difference]: Start difference. First operand 112107 states and 602831 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-14 05:50:28,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:50:28,307 INFO L93 Difference]: Finished difference Result 112107 states and 602831 transitions. [2024-11-14 05:50:28,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:50:28,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2024-11-14 05:50:28,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:50:29,104 INFO L225 Difference]: With dead ends: 112107 [2024-11-14 05:50:29,105 INFO L226 Difference]: Without dead ends: 76642 [2024-11-14 05:50:29,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:50:29,209 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 62 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:50:29,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 10 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]