./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b 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_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --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 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:36:13,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:36:13,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:36:13,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:36:13,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:36:13,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:36:13,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:36:13,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:36:13,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:36:13,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:36:13,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:36:13,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:36:13,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:36:13,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:36:13,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:36:13,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:36:13,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:36:13,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:36:13,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:36:13,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:36:13,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:36:13,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:36:13,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:36:13,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:36:13,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:36:13,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:36:13,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:36:13,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:36:13,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:36:13,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:36:13,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:36:13,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:36:13,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:36:13,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:36:13,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:36:13,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:36:13,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:36:13,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:36:13,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:36:13,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:36:13,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:36:13,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 08:36:13,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:36:13,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:36:13,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:36:13,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:36:13,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:36:13,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:36:13,422 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:36:13,422 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:36:13,422 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:36:13,422 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:36:13,423 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:36:13,424 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:36:13,424 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:36:13,424 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:36:13,424 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:36:13,425 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:36:13,425 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:36:13,425 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:36:13,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 08:36:13,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 08:36:13,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:36:13,428 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:36:13,429 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:36:13,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:36:13,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:36:13,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:36:13,429 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 08:36:13,430 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 08:36:13,430 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 08:36:13,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:36:13,431 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:36:13,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:36:13,431 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:36:13,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:36:13,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:36:13,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:36:13,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:36:13,432 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:36:13,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:36:13,433 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:36:13,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:36:13,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:36:13,433 INFO L138 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_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb [2022-11-19 08:36:13,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:36:13,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:36:13,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:36:13,730 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:36:13,731 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:36:13,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2022-11-19 08:36:13,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/data/6bfa523fa/75f83d362bee4c76a8dc6506b582513c/FLAG9db937ca3 [2022-11-19 08:36:14,485 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:36:14,486 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2022-11-19 08:36:14,502 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/data/6bfa523fa/75f83d362bee4c76a8dc6506b582513c/FLAG9db937ca3 [2022-11-19 08:36:14,756 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/data/6bfa523fa/75f83d362bee4c76a8dc6506b582513c [2022-11-19 08:36:14,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:36:14,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:36:14,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:36:14,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:36:14,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:36:14,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:36:14" (1/1) ... [2022-11-19 08:36:14,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dad044d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:14, skipping insertion in model container [2022-11-19 08:36:14,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:36:14" (1/1) ... [2022-11-19 08:36:14,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:36:14,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:36:15,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:36:15,395 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:36:15,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:36:15,519 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:36:15,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:15 WrapperNode [2022-11-19 08:36:15,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:36:15,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:36:15,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:36:15,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:36:15,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:15" (1/1) ... [2022-11-19 08:36:15,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:15" (1/1) ... [2022-11-19 08:36:15,587 INFO L138 Inliner]: procedures = 266, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-11-19 08:36:15,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:36:15,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:36:15,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:36:15,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:36:15,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:15" (1/1) ... [2022-11-19 08:36:15,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:15" (1/1) ... [2022-11-19 08:36:15,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:15" (1/1) ... [2022-11-19 08:36:15,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:15" (1/1) ... [2022-11-19 08:36:15,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:15" (1/1) ... [2022-11-19 08:36:15,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:15" (1/1) ... [2022-11-19 08:36:15,636 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:15" (1/1) ... [2022-11-19 08:36:15,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:15" (1/1) ... [2022-11-19 08:36:15,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:36:15,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:36:15,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:36:15,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:36:15,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:15" (1/1) ... [2022-11-19 08:36:15,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:36:15,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:36:15,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:36:15,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:36:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:36:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:36:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:36:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 08:36:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:36:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-19 08:36:15,762 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-19 08:36:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:36:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:36:15,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:36:15,764 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:36:15,926 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:36:15,928 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:36:16,110 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:36:16,119 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:36:16,119 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:36:16,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:36:16 BoogieIcfgContainer [2022-11-19 08:36:16,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:36:16,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:36:16,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:36:16,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:36:16,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:36:14" (1/3) ... [2022-11-19 08:36:16,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286b8ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:36:16, skipping insertion in model container [2022-11-19 08:36:16,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:15" (2/3) ... [2022-11-19 08:36:16,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286b8ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:36:16, skipping insertion in model container [2022-11-19 08:36:16,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:36:16" (3/3) ... [2022-11-19 08:36:16,157 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_17-ps_add1_nr.i [2022-11-19 08:36:16,194 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:36:16,195 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 08:36:16,195 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:36:16,272 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 08:36:16,314 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:36:16,333 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 74 transitions, 153 flow [2022-11-19 08:36:16,336 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 74 transitions, 153 flow [2022-11-19 08:36:16,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 74 transitions, 153 flow [2022-11-19 08:36:16,390 INFO L130 PetriNetUnfolder]: 4/73 cut-off events. [2022-11-19 08:36:16,390 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 08:36:16,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 73 events. 4/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2022-11-19 08:36:16,397 INFO L119 LiptonReduction]: Number of co-enabled transitions 666 [2022-11-19 08:36:19,524 INFO L134 LiptonReduction]: Checked pairs total: 1034 [2022-11-19 08:36:19,525 INFO L136 LiptonReduction]: Total number of compositions: 74 [2022-11-19 08:36:19,535 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 16 transitions, 37 flow [2022-11-19 08:36:19,550 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 34 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 33 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:19,574 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:36:19,583 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@2a16fdc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:36:19,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-19 08:36:19,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 33 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:19,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 08:36:19,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:19,593 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 08:36:19,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2022-11-19 08:36:19,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:19,603 INFO L85 PathProgramCache]: Analyzing trace with hash 275, now seen corresponding path program 1 times [2022-11-19 08:36:19,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:19,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724161116] [2022-11-19 08:36:19,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:19,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:19,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:19,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:19,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724161116] [2022-11-19 08:36:19,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724161116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:19,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:19,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 08:36:19,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142737772] [2022-11-19 08:36:19,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:19,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:36:19,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:19,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:36:19,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:36:19,805 INFO L87 Difference]: Start difference. First operand has 34 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 33 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-19 08:36:19,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:19,858 INFO L93 Difference]: Finished difference Result 32 states and 56 transitions. [2022-11-19 08:36:19,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:36:19,862 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-19 08:36:19,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:19,872 INFO L225 Difference]: With dead ends: 32 [2022-11-19 08:36:19,873 INFO L226 Difference]: Without dead ends: 32 [2022-11-19 08:36:19,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:36:19,879 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:19,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:36:19,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-19 08:36:19,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-19 08:36:19,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 31 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:19,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 56 transitions. [2022-11-19 08:36:19,923 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 56 transitions. Word has length 1 [2022-11-19 08:36:19,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:19,924 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 56 transitions. [2022-11-19 08:36:19,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-19 08:36:19,931 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 56 transitions. [2022-11-19 08:36:19,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:36:19,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:19,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:36:19,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:36:19,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2022-11-19 08:36:19,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:19,934 INFO L85 PathProgramCache]: Analyzing trace with hash 8396374, now seen corresponding path program 1 times [2022-11-19 08:36:19,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:19,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089810420] [2022-11-19 08:36:19,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:19,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:20,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:20,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:20,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089810420] [2022-11-19 08:36:20,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089810420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:20,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:20,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:36:20,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485995861] [2022-11-19 08:36:20,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:20,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:36:20,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:20,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:36:20,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:36:20,222 INFO L87 Difference]: Start difference. First operand 32 states and 56 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2022-11-19 08:36:20,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:20,284 INFO L93 Difference]: Finished difference Result 27 states and 47 transitions. [2022-11-19 08:36:20,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:36:20,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 [2022-11-19 08:36:20,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:20,286 INFO L225 Difference]: With dead ends: 27 [2022-11-19 08:36:20,286 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:36:20,286 INFO L412 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 [2022-11-19 08:36:20,288 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:20,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:36:20,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:36:20,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:36:20,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-19 08:36:20,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:36:20,290 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-11-19 08:36:20,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:20,290 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:36:20,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2022-11-19 08:36:20,291 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:36:20,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:36:20,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining) [2022-11-19 08:36:20,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining) [2022-11-19 08:36:20,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2022-11-19 08:36:20,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-11-19 08:36:20,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:36:20,298 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 08:36:20,301 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 08:36:20,301 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:36:20,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:36:20 BasicIcfg [2022-11-19 08:36:20,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:36:20,305 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:36:20,306 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:36:20,306 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:36:20,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:36:16" (3/4) ... [2022-11-19 08:36:20,310 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:36:20,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-19 08:36:20,322 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-19 08:36:20,322 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 08:36:20,323 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 08:36:20,367 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:36:20,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:36:20,368 INFO L158 Benchmark]: Toolchain (without parser) took 5607.82ms. Allocated memory was 90.2MB in the beginning and 136.3MB in the end (delta: 46.1MB). Free memory was 57.2MB in the beginning and 65.5MB in the end (delta: -8.3MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2022-11-19 08:36:20,369 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 90.2MB. Free memory was 46.0MB in the beginning and 46.0MB in the end (delta: 50.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:36:20,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 758.58ms. Allocated memory is still 90.2MB. Free memory was 57.0MB in the beginning and 49.9MB in the end (delta: 7.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:36:20,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.59ms. Allocated memory is still 90.2MB. Free memory was 49.9MB in the beginning and 47.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:36:20,370 INFO L158 Benchmark]: Boogie Preprocessor took 64.40ms. Allocated memory is still 90.2MB. Free memory was 47.8MB in the beginning and 46.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:36:20,371 INFO L158 Benchmark]: RCFGBuilder took 467.29ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 46.3MB in the beginning and 79.2MB in the end (delta: -32.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-11-19 08:36:20,371 INFO L158 Benchmark]: TraceAbstraction took 4170.34ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 78.4MB in the beginning and 67.6MB in the end (delta: 10.8MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2022-11-19 08:36:20,372 INFO L158 Benchmark]: Witness Printer took 62.05ms. Allocated memory is still 136.3MB. Free memory was 67.6MB in the beginning and 65.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:36:20,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 90.2MB. Free memory was 46.0MB in the beginning and 46.0MB in the end (delta: 50.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 758.58ms. Allocated memory is still 90.2MB. Free memory was 57.0MB in the beginning and 49.9MB in the end (delta: 7.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.59ms. Allocated memory is still 90.2MB. Free memory was 49.9MB in the beginning and 47.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.40ms. Allocated memory is still 90.2MB. Free memory was 47.8MB in the beginning and 46.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 467.29ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 46.3MB in the beginning and 79.2MB in the end (delta: -32.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4170.34ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 78.4MB in the beginning and 67.6MB in the end (delta: 10.8MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * Witness Printer took 62.05ms. Allocated memory is still 136.3MB. Free memory was 67.6MB in the beginning and 65.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 74 PlacesBefore, 19 PlacesAfterwards, 74 TransitionsBefore, 16 TransitionsAfterwards, 666 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 3 ChoiceCompositions, 74 TotalNumberOfCompositions, 1034 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 694, independent: 632, independent conditional: 0, independent unconditional: 632, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 470, independent: 450, independent conditional: 0, independent unconditional: 450, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 470, independent: 443, independent conditional: 0, independent unconditional: 443, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 112, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 694, independent: 182, independent conditional: 0, independent unconditional: 182, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 470, unknown conditional: 0, unknown unconditional: 470] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 936]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 82 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 1 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-19 08:36:20,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc092e43-d58e-4b6a-962f-b931094db44f/bin/utaipan-I9t0OCRTmS/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 Writing output log to file Ultimate.log Result: TRUE