./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 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/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_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8 --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-47ea020 [2021-11-07 02:00:40,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:00:40,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:00:41,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:00:41,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:00:41,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:00:41,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:00:41,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:00:41,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:00:41,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:00:41,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:00:41,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:00:41,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:00:41,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:00:41,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:00:41,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:00:41,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:00:41,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:00:41,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:00:41,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:00:41,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:00:41,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:00:41,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:00:41,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:00:41,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:00:41,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:00:41,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:00:41,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:00:41,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:00:41,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:00:41,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:00:41,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:00:41,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:00:41,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:00:41,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:00:41,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:00:41,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:00:41,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:00:41,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:00:41,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:00:41,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:00:41,094 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-07 02:00:41,140 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:00:41,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:00:41,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:00:41,144 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:00:41,144 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:00:41,151 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:00:41,151 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:00:41,151 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:00:41,151 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:00:41,152 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:00:41,153 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:00:41,153 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:00:41,153 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:00:41,154 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:00:41,154 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:00:41,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 02:00:41,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 02:00:41,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:00:41,157 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:00:41,158 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 02:00:41,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:00:41,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:00:41,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:00:41,165 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 02:00:41,165 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 02:00:41,165 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 02:00:41,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:00:41,166 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:00:41,167 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:00:41,167 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:00:41,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:00:41,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:00:41,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:00:41,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:00:41,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:00:41,170 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:00:41,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:00:41,170 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:00:41,171 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:00:41,171 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_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2 [2021-11-07 02:00:41,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:00:41,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:00:41,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:00:41,461 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:00:41,461 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:00:41,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2021-11-07 02:00:41,568 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/data/0b9cfc5d9/c30bc087dbd646c29d9468d3e9c0e8c5/FLAGf1fae6a02 [2021-11-07 02:00:42,294 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:00:42,297 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2021-11-07 02:00:42,341 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/data/0b9cfc5d9/c30bc087dbd646c29d9468d3e9c0e8c5/FLAGf1fae6a02 [2021-11-07 02:00:42,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/data/0b9cfc5d9/c30bc087dbd646c29d9468d3e9c0e8c5 [2021-11-07 02:00:42,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:00:42,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:00:42,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:00:42,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:00:42,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:00:42,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:00:42" (1/1) ... [2021-11-07 02:00:42,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@135a1999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:42, skipping insertion in model container [2021-11-07 02:00:42,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:00:42" (1/1) ... [2021-11-07 02:00:42,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:00:42,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:00:42,733 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_9fef85ce-af5a-4164-b9f1-08b95cad50d6/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i[472,485] [2021-11-07 02:00:43,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:00:43,996 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) [2021-11-07 02:00:43,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@42792267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:43, skipping insertion in model container [2021-11-07 02:00:43,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:00:43,997 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:00:44,000 INFO L168 Benchmark]: Toolchain (without parser) took 1606.20 ms. Allocated memory is still 134.2 MB. Free memory was 94.3 MB in the beginning and 81.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:00:44,002 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 88.1 MB. Free memory was 60.9 MB in the beginning and 60.9 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:00:44,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1602.77 ms. Allocated memory is still 134.2 MB. Free memory was 94.3 MB in the beginning and 81.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:00:44,006 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 88.1 MB. Free memory was 60.9 MB in the beginning and 60.9 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1602.77 ms. Allocated memory is still 134.2 MB. Free memory was 94.3 MB in the beginning and 81.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.7 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_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/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_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8 --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-47ea020 [2021-11-07 02:00:46,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:00:46,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:00:46,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:00:46,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:00:46,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:00:46,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:00:46,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:00:46,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:00:46,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:00:46,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:00:46,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:00:46,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:00:46,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:00:46,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:00:46,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:00:46,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:00:46,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:00:46,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:00:46,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:00:46,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:00:46,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:00:46,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:00:46,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:00:46,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:00:46,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:00:46,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:00:46,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:00:46,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:00:46,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:00:46,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:00:46,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:00:46,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:00:46,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:00:46,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:00:46,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:00:46,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:00:46,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:00:46,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:00:46,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:00:46,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:00:46,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-07 02:00:46,471 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:00:46,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:00:46,472 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:00:46,473 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:00:46,473 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:00:46,473 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:00:46,473 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:00:46,474 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:00:46,474 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:00:46,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 02:00:46,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 02:00:46,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:00:46,477 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:00:46,477 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 02:00:46,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:00:46,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:00:46,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:00:46,478 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 02:00:46,478 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 02:00:46,478 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 02:00:46,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:00:46,479 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:00:46,479 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:00:46,479 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:00:46,479 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:00:46,479 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:00:46,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:00:46,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:00:46,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:00:46,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:00:46,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:00:46,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:00:46,481 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:00:46,481 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:00:46,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:00:46,482 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:00:46,482 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_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aba0d481dbad425b1cb3ce4949768f5bfa91a070fed6a0c2b192c70ad920fc2 [2021-11-07 02:00:46,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:00:46,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:00:46,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:00:46,927 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:00:46,928 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:00:46,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2021-11-07 02:00:47,008 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/data/5f3083755/5e2af60378e048f8922b48db0fa01bd9/FLAG274b7ef8c [2021-11-07 02:00:47,732 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:00:47,733 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i [2021-11-07 02:00:47,775 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/data/5f3083755/5e2af60378e048f8922b48db0fa01bd9/FLAG274b7ef8c [2021-11-07 02:00:47,889 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/data/5f3083755/5e2af60378e048f8922b48db0fa01bd9 [2021-11-07 02:00:47,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:00:47,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:00:47,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:00:47,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:00:47,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:00:47,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:00:47" (1/1) ... [2021-11-07 02:00:47,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b905220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:47, skipping insertion in model container [2021-11-07 02:00:47,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:00:47" (1/1) ... [2021-11-07 02:00:47,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:00:48,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:00:48,306 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_9fef85ce-af5a-4164-b9f1-08b95cad50d6/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i[472,485] [2021-11-07 02:00:49,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:00:49,784 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:00:49,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:00:49,826 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_9fef85ce-af5a-4164-b9f1-08b95cad50d6/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i[472,485] [2021-11-07 02:00:50,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:00:50,074 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:00:50,085 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_9fef85ce-af5a-4164-b9f1-08b95cad50d6/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_pthread_mutex_unlock.i[472,485] [2021-11-07 02:00:50,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:00:50,413 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:00:50,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:50 WrapperNode [2021-11-07 02:00:50,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:00:50,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:00:50,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:00:50,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:00:50,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:50" (1/1) ... [2021-11-07 02:00:50,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:50" (1/1) ... [2021-11-07 02:00:50,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:00:50,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:00:50,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:00:50,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:00:50,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:50" (1/1) ... [2021-11-07 02:00:50,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:50" (1/1) ... [2021-11-07 02:00:50,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:50" (1/1) ... [2021-11-07 02:00:50,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:50" (1/1) ... [2021-11-07 02:00:50,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:50" (1/1) ... [2021-11-07 02:00:50,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:50" (1/1) ... [2021-11-07 02:00:50,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:50" (1/1) ... [2021-11-07 02:00:50,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:00:50,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:00:50,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:00:50,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:00:50,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:50" (1/1) ... [2021-11-07 02:00:50,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:00:50,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:00:50,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:00:51,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:00:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:00:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 02:00:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:00:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:00:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:00:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:00:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:00:51,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:00:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:00:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:00:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 02:00:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 02:00:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:00:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:00:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:00:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:00:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 02:00:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:00:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:00:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 02:00:59,338 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:00:59,339 INFO L299 CfgBuilder]: Removed 497 assume(true) statements. [2021-11-07 02:00:59,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:00:59 BoogieIcfgContainer [2021-11-07 02:00:59,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:00:59,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:00:59,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:00:59,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:00:59,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:00:47" (1/3) ... [2021-11-07 02:00:59,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d5b0062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:00:59, skipping insertion in model container [2021-11-07 02:00:59,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:00:50" (2/3) ... [2021-11-07 02:00:59,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d5b0062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:00:59, skipping insertion in model container [2021-11-07 02:00:59,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:00:59" (3/3) ... [2021-11-07 02:00:59,350 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_pthread_mutex_unlock.i [2021-11-07 02:00:59,355 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:00:59,356 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 287 error locations. [2021-11-07 02:00:59,400 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:00:59,406 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 [2021-11-07 02:00:59,407 INFO L340 AbstractCegarLoop]: Starting to check reachability of 287 error locations. [2021-11-07 02:00:59,444 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) [2021-11-07 02:00:59,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-07 02:00:59,450 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:00:59,450 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-07 02:00:59,450 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 283 more)] === [2021-11-07 02:00:59,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:00:59,455 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-11-07 02:00:59,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:00:59,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273772917] [2021-11-07 02:00:59,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:00:59,468 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:00:59,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:00:59,472 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:00:59,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fef85ce-af5a-4164-b9f1-08b95cad50d6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:01:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:01:00,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:01:00,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:25,948 WARN L207 SmtUtils]: Spent 1.41 m on a formula simplification. DAG size of input: 3433 DAG size of output: 190 [2021-11-07 02:02:25,960 INFO L354 Elim1Store]: treesize reduction 62480, result has 0.8 percent of original size [2021-11-07 02:02:25,961 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