./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH --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 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:49:59,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:49:59,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:49:59,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:49:59,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:49:59,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:49:59,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:49:59,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:49:59,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:49:59,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:49:59,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:49:59,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:49:59,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:49:59,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:49:59,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:49:59,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:49:59,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:49:59,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:49:59,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:49:59,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:49:59,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:49:59,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:49:59,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:49:59,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:49:59,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:49:59,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:49:59,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:49:59,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:49:59,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:49:59,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:49:59,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:49:59,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:49:59,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:49:59,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:49:59,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:49:59,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:49:59,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:49:59,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:49:59,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:49:59,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:49:59,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:49:59,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-03 04:49:59,442 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:49:59,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:49:59,443 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:49:59,443 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:49:59,443 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:49:59,444 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:49:59,444 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:49:59,444 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:49:59,445 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:49:59,445 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:49:59,445 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:49:59,445 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:49:59,446 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:49:59,446 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:49:59,446 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:49:59,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 04:49:59,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 04:49:59,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:49:59,448 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:49:59,448 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 04:49:59,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:49:59,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:49:59,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:49:59,449 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-03 04:49:59,450 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-03 04:49:59,450 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-03 04:49:59,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:49:59,450 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:49:59,451 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:49:59,451 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:49:59,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:49:59,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:49:59,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:49:59,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:49:59,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:49:59,453 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:49:59,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:49:59,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:49:59,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:49:59,454 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2 [2021-11-03 04:49:59,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:49:59,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:49:59,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:49:59,742 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:49:59,743 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:49:59,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2021-11-03 04:49:59,845 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/data/396842310/4f64fc38525649369e457f3a5cd110db/FLAGb66bf1380 [2021-11-03 04:50:00,604 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:50:00,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2021-11-03 04:50:00,650 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/data/396842310/4f64fc38525649369e457f3a5cd110db/FLAGb66bf1380 [2021-11-03 04:50:00,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/data/396842310/4f64fc38525649369e457f3a5cd110db [2021-11-03 04:50:00,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:50:00,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:50:00,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:50:00,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:50:00,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:50:00,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:50:00" (1/1) ... [2021-11-03 04:50:00,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e1cf89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:00, skipping insertion in model container [2021-11-03 04:50:00,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:50:00" (1/1) ... [2021-11-03 04:50:00,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:50:00,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:50:01,093 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i[472,485] [2021-11-03 04:50:02,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:50:02,779 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 04:50:02,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5c111011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:02, skipping insertion in model container [2021-11-03 04:50:02,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:50:02,781 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:50:02,784 INFO L168 Benchmark]: Toolchain (without parser) took 2044.69 ms. Allocated memory is still 119.5 MB. Free memory was 78.9 MB in the beginning and 64.6 MB in the end (delta: 14.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:50:02,785 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 119.5 MB. Free memory was 92.8 MB in the beginning and 92.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:50:02,787 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2041.67 ms. Allocated memory is still 119.5 MB. Free memory was 78.6 MB in the beginning and 64.6 MB in the end (delta: 14.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:50:02,789 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 119.5 MB. Free memory was 92.8 MB in the beginning and 92.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2041.67 ms. Allocated memory is still 119.5 MB. Free memory was 78.6 MB in the beginning and 64.6 MB in the end (delta: 14.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2977]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH --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 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:50:05,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:50:05,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:50:05,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:50:05,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:50:05,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:50:05,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:50:05,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:50:05,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:50:05,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:50:05,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:50:05,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:50:05,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:50:05,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:50:05,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:50:05,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:50:05,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:50:05,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:50:05,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:50:05,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:50:05,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:50:05,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:50:05,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:50:05,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:50:05,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:50:05,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:50:05,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:50:05,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:50:05,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:50:05,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:50:05,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:50:05,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:50:05,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:50:05,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:50:05,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:50:05,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:50:05,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:50:05,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:50:05,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:50:05,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:50:05,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:50:05,306 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-03 04:50:05,338 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:50:05,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:50:05,339 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:50:05,339 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:50:05,339 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:50:05,339 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:50:05,340 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:50:05,340 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:50:05,340 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:50:05,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 04:50:05,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 04:50:05,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:50:05,342 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:50:05,342 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 04:50:05,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:50:05,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:50:05,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:50:05,343 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-03 04:50:05,343 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-03 04:50:05,343 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-03 04:50:05,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:50:05,344 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:50:05,344 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:50:05,344 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:50:05,344 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:50:05,344 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:50:05,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:50:05,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:50:05,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:50:05,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:50:05,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:50:05,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:50:05,346 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:50:05,346 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:50:05,347 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:50:05,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:50:05,347 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2 [2021-11-03 04:50:05,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:50:05,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:50:05,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:50:05,749 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:50:05,749 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:50:05,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2021-11-03 04:50:05,828 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/data/d8e664b75/ee5551389b564d128668ce25f8434dd0/FLAGa5ecb5fa5 [2021-11-03 04:50:06,680 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:50:06,684 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2021-11-03 04:50:06,733 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/data/d8e664b75/ee5551389b564d128668ce25f8434dd0/FLAGa5ecb5fa5 [2021-11-03 04:50:07,217 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/data/d8e664b75/ee5551389b564d128668ce25f8434dd0 [2021-11-03 04:50:07,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:50:07,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:50:07,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:50:07,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:50:07,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:50:07,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:50:07" (1/1) ... [2021-11-03 04:50:07,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5281288e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:07, skipping insertion in model container [2021-11-03 04:50:07,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:50:07" (1/1) ... [2021-11-03 04:50:07,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:50:07,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:50:07,614 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i[472,485] [2021-11-03 04:50:09,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:50:09,122 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:50:09,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:50:09,158 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i[472,485] [2021-11-03 04:50:09,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:50:09,430 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:50:09,444 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i[472,485] [2021-11-03 04:50:09,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:50:09,843 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:50:09,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:09 WrapperNode [2021-11-03 04:50:09,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:50:09,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:50:09,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:50:09,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:50:09,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:09" (1/1) ... [2021-11-03 04:50:09,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:09" (1/1) ... [2021-11-03 04:50:10,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:50:10,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:50:10,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:50:10,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:50:10,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:09" (1/1) ... [2021-11-03 04:50:10,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:09" (1/1) ... [2021-11-03 04:50:10,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:09" (1/1) ... [2021-11-03 04:50:10,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:09" (1/1) ... [2021-11-03 04:50:10,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:09" (1/1) ... [2021-11-03 04:50:10,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:09" (1/1) ... [2021-11-03 04:50:10,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:09" (1/1) ... [2021-11-03 04:50:10,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:50:10,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:50:10,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:50:10,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:50:10,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:09" (1/1) ... [2021-11-03 04:50:10,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:50:10,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:50:10,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:50:10,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:50:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:50:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 04:50:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:50:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:50:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:50:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:50:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:50:10,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:50:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:50:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:50:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 04:50:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 04:50:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:50:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:50:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:50:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:50:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 04:50:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:50:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:50:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 04:50:19,681 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:50:19,682 INFO L299 CfgBuilder]: Removed 497 assume(true) statements. [2021-11-03 04:50:19,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:50:19 BoogieIcfgContainer [2021-11-03 04:50:19,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:50:19,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:50:19,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:50:19,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:50:19,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:50:07" (1/3) ... [2021-11-03 04:50:19,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13357eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:50:19, skipping insertion in model container [2021-11-03 04:50:19,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:50:09" (2/3) ... [2021-11-03 04:50:19,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13357eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:50:19, skipping insertion in model container [2021-11-03 04:50:19,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:50:19" (3/3) ... [2021-11-03 04:50:19,705 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_pthread_mutex_unlock.i [2021-11-03 04:50:19,711 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:50:19,712 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 287 error locations. [2021-11-03 04:50:19,768 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:50:19,775 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:50:19,775 INFO L340 AbstractCegarLoop]: Starting to check reachability of 287 error locations. [2021-11-03 04:50:19,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 781 states, 493 states have (on average 1.8012170385395538) internal successors, (888), 780 states have internal predecessors, (888), 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) [2021-11-03 04:50:19,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-03 04:50:19,829 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:50:19,830 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-03 04:50:19,831 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 283 more)] === [2021-11-03 04:50:19,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:50:19,838 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-11-03 04:50:19,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:50:19,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461400851] [2021-11-03 04:50:19,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:50:19,858 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:50:19,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:50:19,862 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:50:19,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b481ba3d-8a8a-478e-bfd7-f05d8a4ad85c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:50:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:50:20,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:50:20,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:51:55,337 WARN L207 SmtUtils]: Spent 1.56 m on a formula simplification. DAG size of input: 3433 DAG size of output: 190 [2021-11-03 04:51:55,349 INFO L354 Elim1Store]: treesize reduction 62480, result has 0.8 percent of original size [2021-11-03 04:51:55,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 47 case distinctions, treesize of input 1933 treesize of output 2272