./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb010ae024b402436affeb854f96a5f9e0df3d8ec2cfe8b3a7f33676b7169a2c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:24:14,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:24:14,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:24:14,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:24:14,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:24:14,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:24:14,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:24:14,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:24:14,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:24:14,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:24:14,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:24:14,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:24:14,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:24:14,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:24:14,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:24:14,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:24:14,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:24:14,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:24:14,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:24:14,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:24:14,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:24:14,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:24:14,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:24:14,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:24:14,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:24:14,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:24:14,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:24:14,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:24:14,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:24:14,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:24:14,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:24:14,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:24:14,965 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:24:14,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:24:14,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:24:14,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:24:14,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:24:14,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:24:14,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:24:14,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:24:14,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:24:14,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 18:24:15,024 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:24:15,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:24:15,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:24:15,026 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:24:15,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:24:15,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:24:15,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:24:15,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:24:15,030 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:24:15,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:24:15,032 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:24:15,032 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:24:15,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:24:15,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:24:15,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:24:15,033 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 18:24:15,033 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 18:24:15,033 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 18:24:15,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:24:15,034 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 18:24:15,034 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:24:15,034 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:24:15,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:24:15,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:24:15,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:24:15,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:24:15,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:24:15,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:24:15,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:24:15,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:24:15,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb010ae024b402436affeb854f96a5f9e0df3d8ec2cfe8b3a7f33676b7169a2c [2022-11-18 18:24:15,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:24:15,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:24:15,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:24:15,450 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:24:15,451 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:24:15,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i [2022-11-18 18:24:15,541 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/data/570280038/18b5dd9000f84cbdb74be45c412142da/FLAG40961647a [2022-11-18 18:24:16,372 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:24:16,373 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i [2022-11-18 18:24:16,392 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/data/570280038/18b5dd9000f84cbdb74be45c412142da/FLAG40961647a [2022-11-18 18:24:16,575 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/data/570280038/18b5dd9000f84cbdb74be45c412142da [2022-11-18 18:24:16,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:24:16,580 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:24:16,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:24:16,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:24:16,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:24:16,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:24:16" (1/1) ... [2022-11-18 18:24:16,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c52e096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:16, skipping insertion in model container [2022-11-18 18:24:16,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:24:16" (1/1) ... [2022-11-18 18:24:16,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:24:16,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:24:17,229 WARN L234 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_7c7db329-d356-4b6b-9c0c-33b470b0896b/sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i[30176,30189] [2022-11-18 18:24:17,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:24:17,282 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:24:17,330 WARN L234 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_7c7db329-d356-4b6b-9c0c-33b470b0896b/sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i[30176,30189] [2022-11-18 18:24:17,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:24:17,405 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:24:17,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:17 WrapperNode [2022-11-18 18:24:17,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:24:17,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:24:17,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:24:17,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:24:17,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:17" (1/1) ... [2022-11-18 18:24:17,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:17" (1/1) ... [2022-11-18 18:24:17,485 INFO L138 Inliner]: procedures = 170, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2022-11-18 18:24:17,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:24:17,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:24:17,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:24:17,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:24:17,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:17" (1/1) ... [2022-11-18 18:24:17,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:17" (1/1) ... [2022-11-18 18:24:17,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:17" (1/1) ... [2022-11-18 18:24:17,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:17" (1/1) ... [2022-11-18 18:24:17,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:17" (1/1) ... [2022-11-18 18:24:17,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:17" (1/1) ... [2022-11-18 18:24:17,540 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:17" (1/1) ... [2022-11-18 18:24:17,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:17" (1/1) ... [2022-11-18 18:24:17,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:24:17,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:24:17,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:24:17,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:24:17,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:17" (1/1) ... [2022-11-18 18:24:17,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:24:17,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:24:17,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:24:17,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:24:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:24:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:24:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 18:24:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:24:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:24:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 18:24:17,653 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 18:24:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:24:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:24:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:24:17,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:24:17,657 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:24:17,831 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:24:17,833 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:24:18,156 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:24:18,165 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:24:18,165 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-18 18:24:18,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:24:18 BoogieIcfgContainer [2022-11-18 18:24:18,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:24:18,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:24:18,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:24:18,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:24:18,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:24:16" (1/3) ... [2022-11-18 18:24:18,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b2279e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:24:18, skipping insertion in model container [2022-11-18 18:24:18,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:17" (2/3) ... [2022-11-18 18:24:18,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b2279e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:24:18, skipping insertion in model container [2022-11-18 18:24:18,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:24:18" (3/3) ... [2022-11-18 18:24:18,177 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_21-deref_read_racing.i [2022-11-18 18:24:18,199 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:24:18,200 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-18 18:24:18,200 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:24:18,341 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 18:24:18,388 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 18:24:18,405 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 119 transitions, 243 flow [2022-11-18 18:24:18,408 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 119 transitions, 243 flow [2022-11-18 18:24:18,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 119 transitions, 243 flow [2022-11-18 18:24:18,483 INFO L130 PetriNetUnfolder]: 14/157 cut-off events. [2022-11-18 18:24:18,484 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:24:18,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 157 events. 14/157 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 439 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2022-11-18 18:24:18,496 INFO L119 LiptonReduction]: Number of co-enabled transitions 3520 [2022-11-18 18:24:23,630 INFO L134 LiptonReduction]: Checked pairs total: 7859 [2022-11-18 18:24:23,631 INFO L136 LiptonReduction]: Total number of compositions: 116 [2022-11-18 18:24:23,644 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 44 transitions, 93 flow [2022-11-18 18:24:23,712 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 333 states, 256 states have (on average 2.94140625) internal successors, (753), 332 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:23,741 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:24:23,754 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1d3ce880, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:24:23,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2022-11-18 18:24:23,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 333 states, 256 states have (on average 2.94140625) internal successors, (753), 332 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:23,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-18 18:24:23,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:24:23,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-18 18:24:23,766 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-18 18:24:23,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:24:23,775 INFO L85 PathProgramCache]: Analyzing trace with hash 14883, now seen corresponding path program 1 times [2022-11-18 18:24:23,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:24:23,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467017896] [2022-11-18 18:24:23,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:24:23,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:24:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:24:24,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:24:24,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:24:24,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467017896] [2022-11-18 18:24:24,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467017896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:24:24,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:24:24,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:24:24,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849021528] [2022-11-18 18:24:24,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:24:24,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:24:24,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:24:24,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:24:24,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:24:24,191 INFO L87 Difference]: Start difference. First operand has 333 states, 256 states have (on average 2.94140625) internal successors, (753), 332 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:24,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:24:24,388 INFO L93 Difference]: Finished difference Result 291 states and 544 transitions. [2022-11-18 18:24:24,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:24:24,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-18 18:24:24,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:24:24,403 INFO L225 Difference]: With dead ends: 291 [2022-11-18 18:24:24,404 INFO L226 Difference]: Without dead ends: 289 [2022-11-18 18:24:24,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:24:24,409 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 20 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:24:24,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:24:24,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-11-18 18:24:24,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2022-11-18 18:24:24,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 233 states have (on average 2.3175965665236054) internal successors, (540), 288 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:24,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 540 transitions. [2022-11-18 18:24:24,471 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 540 transitions. Word has length 2 [2022-11-18 18:24:24,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:24:24,472 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 540 transitions. [2022-11-18 18:24:24,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:24,473 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 540 transitions. [2022-11-18 18:24:24,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-18 18:24:24,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:24:24,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-18 18:24:24,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:24:24,474 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-18 18:24:24,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:24:24,475 INFO L85 PathProgramCache]: Analyzing trace with hash 14885, now seen corresponding path program 1 times [2022-11-18 18:24:24,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:24:24,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050467999] [2022-11-18 18:24:24,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:24:24,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:24:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:24:24,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:24:24,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:24:24,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050467999] [2022-11-18 18:24:24,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050467999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:24:24,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:24:24,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:24:24,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628963534] [2022-11-18 18:24:24,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:24:24,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:24:24,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:24:24,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:24:24,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:24:24,551 INFO L87 Difference]: Start difference. First operand 289 states and 540 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:24,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:24:24,666 INFO L93 Difference]: Finished difference Result 270 states and 504 transitions. [2022-11-18 18:24:24,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:24:24,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-18 18:24:24,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:24:24,670 INFO L225 Difference]: With dead ends: 270 [2022-11-18 18:24:24,672 INFO L226 Difference]: Without dead ends: 270 [2022-11-18 18:24:24,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:24:24,674 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 29 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:24:24,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 4 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:24:24,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-18 18:24:24,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2022-11-18 18:24:24,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 222 states have (on average 2.27027027027027) internal successors, (504), 269 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:24,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 504 transitions. [2022-11-18 18:24:24,704 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 504 transitions. Word has length 2 [2022-11-18 18:24:24,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:24:24,704 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 504 transitions. [2022-11-18 18:24:24,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:24,706 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 504 transitions. [2022-11-18 18:24:24,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 18:24:24,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:24:24,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 18:24:24,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:24:24,712 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-18 18:24:24,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:24:24,720 INFO L85 PathProgramCache]: Analyzing trace with hash 443731802, now seen corresponding path program 1 times [2022-11-18 18:24:24,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:24:24,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217320634] [2022-11-18 18:24:24,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:24:24,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:24:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:24:24,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:24:24,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:24:24,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217320634] [2022-11-18 18:24:24,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217320634] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:24:24,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816816327] [2022-11-18 18:24:24,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:24:24,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:24:24,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:24:24,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:24:25,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:24:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:24:25,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 18:24:25,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:24:25,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 18:24:25,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:24:25,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:24:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:24:25,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816816327] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:24:25,368 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:24:25,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6 [2022-11-18 18:24:25,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815326731] [2022-11-18 18:24:25,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:24:25,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:24:25,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:24:25,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:24:25,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:24:25,370 INFO L87 Difference]: Start difference. First operand 270 states and 504 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:25,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:24:25,530 INFO L93 Difference]: Finished difference Result 75 states and 125 transitions. [2022-11-18 18:24:25,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:24:25,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 18:24:25,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:24:25,531 INFO L225 Difference]: With dead ends: 75 [2022-11-18 18:24:25,532 INFO L226 Difference]: Without dead ends: 75 [2022-11-18 18:24:25,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:24:25,536 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 111 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:24:25,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 27 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:24:25,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-18 18:24:25,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-18 18:24:25,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 68 states have (on average 1.838235294117647) internal successors, (125), 74 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:25,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 125 transitions. [2022-11-18 18:24:25,554 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 125 transitions. Word has length 5 [2022-11-18 18:24:25,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:24:25,555 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 125 transitions. [2022-11-18 18:24:25,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:25,559 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 125 transitions. [2022-11-18 18:24:25,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 18:24:25,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:24:25,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 18:24:25,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 18:24:25,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:24:25,767 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-18 18:24:25,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:24:25,767 INFO L85 PathProgramCache]: Analyzing trace with hash 870759455, now seen corresponding path program 1 times [2022-11-18 18:24:25,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:24:25,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737765651] [2022-11-18 18:24:25,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:24:25,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:24:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:24:25,799 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:24:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:24:25,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:24:25,828 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:24:25,829 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 23 remaining) [2022-11-18 18:24:25,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 23 remaining) [2022-11-18 18:24:25,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 23 remaining) [2022-11-18 18:24:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 23 remaining) [2022-11-18 18:24:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 23 remaining) [2022-11-18 18:24:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (17 of 23 remaining) [2022-11-18 18:24:25,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (16 of 23 remaining) [2022-11-18 18:24:25,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 23 remaining) [2022-11-18 18:24:25,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 23 remaining) [2022-11-18 18:24:25,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 23 remaining) [2022-11-18 18:24:25,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 23 remaining) [2022-11-18 18:24:25,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 23 remaining) [2022-11-18 18:24:25,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 23 remaining) [2022-11-18 18:24:25,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 23 remaining) [2022-11-18 18:24:25,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 23 remaining) [2022-11-18 18:24:25,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 23 remaining) [2022-11-18 18:24:25,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 23 remaining) [2022-11-18 18:24:25,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 23 remaining) [2022-11-18 18:24:25,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 23 remaining) [2022-11-18 18:24:25,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 23 remaining) [2022-11-18 18:24:25,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 23 remaining) [2022-11-18 18:24:25,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 23 remaining) [2022-11-18 18:24:25,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 23 remaining) [2022-11-18 18:24:25,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:24:25,840 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-18 18:24:25,846 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 18:24:25,846 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:24:25,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:24:25 BasicIcfg [2022-11-18 18:24:25,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:24:25,869 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:24:25,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:24:25,869 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:24:25,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:24:18" (3/4) ... [2022-11-18 18:24:25,872 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 18:24:25,908 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:24:25,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:24:25,909 INFO L158 Benchmark]: Toolchain (without parser) took 9329.90ms. Allocated memory was 104.9MB in the beginning and 159.4MB in the end (delta: 54.5MB). Free memory was 72.2MB in the beginning and 52.7MB in the end (delta: 19.5MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. [2022-11-18 18:24:25,910 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 104.9MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:24:25,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 826.54ms. Allocated memory is still 104.9MB. Free memory was 72.2MB in the beginning and 69.4MB in the end (delta: 2.9MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-11-18 18:24:25,911 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.15ms. Allocated memory is still 104.9MB. Free memory was 69.4MB in the beginning and 67.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:24:25,911 INFO L158 Benchmark]: Boogie Preprocessor took 57.53ms. Allocated memory is still 104.9MB. Free memory was 67.3MB in the beginning and 65.6MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 18:24:25,911 INFO L158 Benchmark]: RCFGBuilder took 622.75ms. Allocated memory is still 104.9MB. Free memory was 65.6MB in the beginning and 50.1MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 18:24:25,912 INFO L158 Benchmark]: TraceAbstraction took 7698.52ms. Allocated memory was 104.9MB in the beginning and 159.4MB in the end (delta: 54.5MB). Free memory was 49.2MB in the beginning and 55.9MB in the end (delta: -6.6MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2022-11-18 18:24:25,912 INFO L158 Benchmark]: Witness Printer took 40.00ms. Allocated memory is still 159.4MB. Free memory was 55.9MB in the beginning and 52.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:24:25,914 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 104.9MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 826.54ms. Allocated memory is still 104.9MB. Free memory was 72.2MB in the beginning and 69.4MB in the end (delta: 2.9MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.15ms. Allocated memory is still 104.9MB. Free memory was 69.4MB in the beginning and 67.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.53ms. Allocated memory is still 104.9MB. Free memory was 67.3MB in the beginning and 65.6MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 622.75ms. Allocated memory is still 104.9MB. Free memory was 65.6MB in the beginning and 50.1MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7698.52ms. Allocated memory was 104.9MB in the beginning and 159.4MB in the end (delta: 54.5MB). Free memory was 49.2MB in the beginning and 55.9MB in the end (delta: -6.6MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Witness Printer took 40.00ms. Allocated memory is still 159.4MB. Free memory was 55.9MB in the beginning and 52.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.2s, 112 PlacesBefore, 39 PlacesAfterwards, 119 TransitionsBefore, 44 TransitionsAfterwards, 3520 CoEnabledTransitionPairs, 7 FixpointIterations, 33 TrivialSequentialCompositions, 69 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 116 TotalNumberOfCompositions, 7859 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4832, independent: 4619, independent conditional: 0, independent unconditional: 4619, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2466, independent: 2420, independent conditional: 0, independent unconditional: 2420, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2466, independent: 2369, independent conditional: 0, independent unconditional: 2369, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 97, independent: 51, independent conditional: 0, independent unconditional: 51, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 254, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 172, dependent conditional: 0, dependent unconditional: 172, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4832, independent: 2199, independent conditional: 0, independent unconditional: 2199, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 2466, unknown conditional: 0, unknown unconditional: 2466] , Statistics on independence cache: Total cache size (in pairs): 212, Positive cache size: 187, Positive conditional cache size: 0, Positive unconditional cache size: 187, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L698] 0 int *p = &data, *q; [L697] 0 int data = 0; [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L699] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L707] 0 pthread_t t_ids[10000]; [L707] 0 int i=0; VAL [__global_lock={4:0}, data={3:0}, i=0, mutex={5:0}, p={40001:-1}, q={0:0}, t_ids={6:0}] [L707] COND TRUE 0 i<10000 [L707] FCALL, FORK 0 pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0)) VAL [__global_lock={4:0}, arg={0:0}, data={3:0}, i=0, mutex={5:0}, p={40001:-1}, pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0))=-2, q={0:0}, t_ids={6:0}] [L702] 1 \read(*p) - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 145 locations, 23 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 160 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 160 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 196 IncrementalHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 18 mSDtfsCounter, 196 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=333occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 116 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-18 18:24:25,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c7db329-d356-4b6b-9c0c-33b470b0896b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)