./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.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_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --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-e04fb08 [2022-11-16 11:17:48,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:17:48,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:17:48,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:17:48,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:17:48,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:17:48,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:17:48,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:17:48,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:17:48,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:17:48,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:17:48,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:17:48,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:17:48,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:17:48,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:17:48,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:17:48,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:17:48,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:17:48,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:17:48,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:17:48,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:17:48,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:17:48,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:17:48,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:17:48,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:17:48,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:17:48,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:17:48,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:17:48,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:17:48,519 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:17:48,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:17:48,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:17:48,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:17:48,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:17:48,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:17:48,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:17:48,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:17:48,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:17:48,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:17:48,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:17:48,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:17:48,528 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:17:48,551 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:17:48,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:17:48,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:17:48,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:17:48,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:17:48,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:17:48,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:17:48,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:17:48,555 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:17:48,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:17:48,555 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:17:48,556 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:17:48,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:17:48,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:17:48,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:17:48,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:17:48,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:17:48,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:17:48,558 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:17:48,558 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:17:48,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:17:48,558 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:17:48,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:17:48,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:17:48,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:17:48,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:17:48,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:17:48,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:17:48,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:17:48,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:17:48,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:17:48,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:17:48,561 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:17:48,562 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:17:48,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:17:48,562 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_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb010ae024b402436affeb854f96a5f9e0df3d8ec2cfe8b3a7f33676b7169a2c [2022-11-16 11:17:48,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:17:48,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:17:48,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:17:48,903 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:17:48,904 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:17:48,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i [2022-11-16 11:17:48,980 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/data/3a37d7489/a9ed5cc77f704b44afb04bb31b94618c/FLAGfedeab13e [2022-11-16 11:17:49,568 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:17:49,568 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i [2022-11-16 11:17:49,587 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/data/3a37d7489/a9ed5cc77f704b44afb04bb31b94618c/FLAGfedeab13e [2022-11-16 11:17:49,824 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/data/3a37d7489/a9ed5cc77f704b44afb04bb31b94618c [2022-11-16 11:17:49,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:17:49,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:17:49,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:17:49,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:17:49,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:17:49,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:17:49" (1/1) ... [2022-11-16 11:17:49,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c08b168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:49, skipping insertion in model container [2022-11-16 11:17:49,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:17:49" (1/1) ... [2022-11-16 11:17:49,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:17:49,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:17:50,378 WARN L229 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_525dec47-26fa-4fa4-b837-3b086b4ea4e8/sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i[30176,30189] [2022-11-16 11:17:50,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:17:50,414 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:17:50,461 WARN L229 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_525dec47-26fa-4fa4-b837-3b086b4ea4e8/sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i[30176,30189] [2022-11-16 11:17:50,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:17:50,520 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:17:50,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:50 WrapperNode [2022-11-16 11:17:50,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:17:50,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:17:50,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:17:50,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:17:50,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:50" (1/1) ... [2022-11-16 11:17:50,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:50" (1/1) ... [2022-11-16 11:17:50,595 INFO L138 Inliner]: procedures = 170, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2022-11-16 11:17:50,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:17:50,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:17:50,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:17:50,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:17:50,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:50" (1/1) ... [2022-11-16 11:17:50,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:50" (1/1) ... [2022-11-16 11:17:50,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:50" (1/1) ... [2022-11-16 11:17:50,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:50" (1/1) ... [2022-11-16 11:17:50,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:50" (1/1) ... [2022-11-16 11:17:50,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:50" (1/1) ... [2022-11-16 11:17:50,643 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:50" (1/1) ... [2022-11-16 11:17:50,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:50" (1/1) ... [2022-11-16 11:17:50,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:17:50,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:17:50,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:17:50,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:17:50,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:50" (1/1) ... [2022-11-16 11:17:50,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:17:50,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:17:50,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:17:50,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:17:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:17:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:17:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:17:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:17:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:17:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:17:50,742 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:17:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:17:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:17:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:17:50,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:17:50,744 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:17:50,909 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:17:50,911 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:17:51,196 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:17:51,203 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:17:51,204 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-16 11:17:51,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:17:51 BoogieIcfgContainer [2022-11-16 11:17:51,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:17:51,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:17:51,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:17:51,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:17:51,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:17:49" (1/3) ... [2022-11-16 11:17:51,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d707b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:17:51, skipping insertion in model container [2022-11-16 11:17:51,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:50" (2/3) ... [2022-11-16 11:17:51,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d707b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:17:51, skipping insertion in model container [2022-11-16 11:17:51,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:17:51" (3/3) ... [2022-11-16 11:17:51,221 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_21-deref_read_racing.i [2022-11-16 11:17:51,235 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:17:51,246 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:17:51,246 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 11:17:51,247 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:17:51,328 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:17:51,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 114 transitions, 233 flow [2022-11-16 11:17:51,468 INFO L130 PetriNetUnfolder]: 14/144 cut-off events. [2022-11-16 11:17:51,469 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:17:51,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 144 events. 14/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 333 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 79. Up to 4 conditions per place. [2022-11-16 11:17:51,476 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 114 transitions, 233 flow [2022-11-16 11:17:51,481 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 114 transitions, 233 flow [2022-11-16 11:17:51,493 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:17:51,500 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6be2b4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:17:51,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-16 11:17:51,517 INFO L130 PetriNetUnfolder]: 1/60 cut-off events. [2022-11-16 11:17:51,518 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:17:51,518 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:17:51,519 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:51,519 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 11:17:51,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:51,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1815301200, now seen corresponding path program 1 times [2022-11-16 11:17:51,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:51,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946148449] [2022-11-16 11:17:51,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:51,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:51,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:51,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:51,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946148449] [2022-11-16 11:17:51,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946148449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:51,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:51,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:17:51,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939920047] [2022-11-16 11:17:51,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:51,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:17:51,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:52,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:17:52,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:17:52,049 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 114 [2022-11-16 11:17:52,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 114 transitions, 233 flow. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 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) [2022-11-16 11:17:52,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:17:52,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 114 [2022-11-16 11:17:52,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:17:52,127 INFO L130 PetriNetUnfolder]: 0/105 cut-off events. [2022-11-16 11:17:52,127 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:17:52,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 105 events. 0/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 36/135 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-11-16 11:17:52,129 INFO L137 encePairwiseOnDemand]: 97/114 looper letters, 9 selfloop transitions, 4 changer transitions 0/103 dead transitions. [2022-11-16 11:17:52,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 103 transitions, 237 flow [2022-11-16 11:17:52,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:17:52,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:17:52,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 495 transitions. [2022-11-16 11:17:52,153 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.868421052631579 [2022-11-16 11:17:52,156 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 495 transitions. [2022-11-16 11:17:52,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 495 transitions. [2022-11-16 11:17:52,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:17:52,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 495 transitions. [2022-11-16 11:17:52,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 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) [2022-11-16 11:17:52,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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) [2022-11-16 11:17:52,183 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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) [2022-11-16 11:17:52,185 INFO L175 Difference]: Start difference. First operand has 107 places, 114 transitions, 233 flow. Second operand 5 states and 495 transitions. [2022-11-16 11:17:52,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 103 transitions, 237 flow [2022-11-16 11:17:52,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 103 transitions, 237 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:17:52,200 INFO L231 Difference]: Finished difference. Result has 109 places, 101 transitions, 219 flow [2022-11-16 11:17:52,203 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=219, PETRI_PLACES=109, PETRI_TRANSITIONS=101} [2022-11-16 11:17:52,209 INFO L288 CegarLoopForPetriNet]: 107 programPoint places, 2 predicate places. [2022-11-16 11:17:52,210 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 101 transitions, 219 flow [2022-11-16 11:17:52,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 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) [2022-11-16 11:17:52,211 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:17:52,212 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:52,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:17:52,213 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-16 11:17:52,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:52,214 INFO L85 PathProgramCache]: Analyzing trace with hash 662277450, now seen corresponding path program 1 times [2022-11-16 11:17:52,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:52,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310140563] [2022-11-16 11:17:52,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:52,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:17:52,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:17:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:17:52,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:17:52,328 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:17:52,330 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2022-11-16 11:17:52,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2022-11-16 11:17:52,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2022-11-16 11:17:52,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2022-11-16 11:17:52,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2022-11-16 11:17:52,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2022-11-16 11:17:52,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2022-11-16 11:17:52,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2022-11-16 11:17:52,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2022-11-16 11:17:52,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2022-11-16 11:17:52,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2022-11-16 11:17:52,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:17:52,336 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 11:17:52,342 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:17:52,343 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:17:52,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:17:52 BasicIcfg [2022-11-16 11:17:52,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:17:52,400 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:17:52,400 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:17:52,400 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:17:52,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:17:51" (3/4) ... [2022-11-16 11:17:52,402 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 11:17:52,478 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:17:52,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:17:52,480 INFO L158 Benchmark]: Toolchain (without parser) took 2648.81ms. Allocated memory is still 119.5MB. Free memory was 83.2MB in the beginning and 51.0MB in the end (delta: 32.1MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2022-11-16 11:17:52,486 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 119.5MB. Free memory was 93.4MB in the beginning and 93.4MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:17:52,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 686.83ms. Allocated memory is still 119.5MB. Free memory was 82.7MB in the beginning and 84.7MB in the end (delta: -2.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:17:52,487 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.05ms. Allocated memory is still 119.5MB. Free memory was 84.7MB in the beginning and 82.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:17:52,488 INFO L158 Benchmark]: Boogie Preprocessor took 50.61ms. Allocated memory is still 119.5MB. Free memory was 82.6MB in the beginning and 81.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:17:52,488 INFO L158 Benchmark]: RCFGBuilder took 558.09ms. Allocated memory is still 119.5MB. Free memory was 81.2MB in the beginning and 65.8MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 11:17:52,488 INFO L158 Benchmark]: TraceAbstraction took 1191.15ms. Allocated memory is still 119.5MB. Free memory was 65.1MB in the beginning and 56.5MB in the end (delta: 8.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2022-11-16 11:17:52,489 INFO L158 Benchmark]: Witness Printer took 79.32ms. Allocated memory is still 119.5MB. Free memory was 56.5MB in the beginning and 51.0MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:17:52,491 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 119.5MB. Free memory was 93.4MB in the beginning and 93.4MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 686.83ms. Allocated memory is still 119.5MB. Free memory was 82.7MB in the beginning and 84.7MB in the end (delta: -2.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.05ms. Allocated memory is still 119.5MB. Free memory was 84.7MB in the beginning and 82.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.61ms. Allocated memory is still 119.5MB. Free memory was 82.6MB in the beginning and 81.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 558.09ms. Allocated memory is still 119.5MB. Free memory was 81.2MB in the beginning and 65.8MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1191.15ms. Allocated memory is still 119.5MB. Free memory was 65.1MB in the beginning and 56.5MB in the end (delta: 8.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Witness Printer took 79.32ms. Allocated memory is still 119.5MB. Free memory was 56.5MB in the beginning and 51.0MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 702]: integer overflow possible integer overflow possible We found a FailurePath: [L698] 0 int *p = &data, *q; VAL [data={2147483648:2147483649}, p={2147483648:2147483649}, q={0:0}] [L697] 0 int data = 0; VAL [data={3:0}, p={2147483648:2147483649}, q={0:0}] [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={4:0}, data={3:0}, p={2147483648:2147483649}, q={0:0}] [L699] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={4:0}, data={3:0}, mutex={5:0}, p={2147483648:2147483649}, q={0:0}] [L707] 0 pthread_t t_ids[10000]; VAL [__global_lock={4:0}, data={3:0}, mutex={5:0}, p={2147483648:2147483649}, q={0:0}, t_ids={6:0}] [L707] 0 int i=0; VAL [__global_lock={4:0}, data={3:0}, i=0, mutex={5:0}, p={2147483648:2147483649}, q={0:0}, t_ids={6:0}] [L707] COND TRUE 0 i<10000 VAL [__global_lock={4:0}, data={3:0}, i=0, mutex={5:0}, p={2147483648:2147483649}, q={0:0}, t_ids={6:0}] [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={2147483648:2147483649}, pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0))=-1, q={0:0}, t_ids={6:0}] [L702] EXPR 1 \read(*p) VAL [\read(*p)=2147483647, __global_lock={4:0}, arg={0:0}, arg={0:0}, data={3:0}, mutex={5:0}, p={2147483648:2147483649}, q={0:0}] [L702] 1 (*p)++ VAL [(*p)++=2147483647, \read(*p)=2147483647, __global_lock={4:0}, arg={0:0}, arg={0:0}, data={3:0}, mutex={5:0}, p={2147483648:2147483649}, q={0:0}] - UnprovableResult [Line: 707]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur 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: 702]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 140 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 4 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=233occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-16 11:17:52,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525dec47-26fa-4fa4-b837-3b086b4ea4e8/bin/uautomizer-tPACEb0tL8/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(OVERFLOW)