./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_22-deref_read_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/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_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_22-deref_read_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro --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 4ce97f399f5ab540e05119d9433f4e1bfecfe892f8e87faddc6435387a55a4d6 --- 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 19:32:55,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:32:55,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:32:55,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:32:55,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:32:55,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:32:55,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:32:55,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:32:55,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:32:55,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:32:55,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:32:55,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:32:55,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:32:55,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:32:55,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:32:55,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:32:55,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:32:55,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:32:55,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:32:55,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:32:55,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:32:55,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:32:55,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:32:55,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:32:55,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:32:55,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:32:55,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:32:55,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:32:55,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:32:55,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:32:55,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:32:55,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:32:55,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:32:55,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:32:55,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:32:55,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:32:55,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:32:55,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:32:55,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:32:55,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:32:55,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:32:55,408 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:32:55,438 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:32:55,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:32:55,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:32:55,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:32:55,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:32:55,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:32:55,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:32:55,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:32:55,450 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:32:55,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:32:55,451 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:32:55,451 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:32:55,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:32:55,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:32:55,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:32:55,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:32:55,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:32:55,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:32:55,453 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:32:55,453 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:32:55,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:32:55,454 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:32:55,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:32:55,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:32:55,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:32:55,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:32:55,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:32:55,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:32:55,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:32:55,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:32:55,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:32:55,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:32:55,458 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:32:55,459 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:32:55,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:32:55,459 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_f9fb6397-d575-489a-a96a-2049d28265f1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ce97f399f5ab540e05119d9433f4e1bfecfe892f8e87faddc6435387a55a4d6 [2022-11-18 19:32:55,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:32:55,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:32:55,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:32:55,812 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:32:55,813 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:32:55,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/28-race_reach_22-deref_read_racefree.i [2022-11-18 19:32:55,889 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro/data/71b48712c/c23b8a915f1a4a84b7afe809c96c557a/FLAGebb9ed724 [2022-11-18 19:32:56,441 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:32:56,442 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/sv-benchmarks/c/goblint-regression/28-race_reach_22-deref_read_racefree.i [2022-11-18 19:32:56,460 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro/data/71b48712c/c23b8a915f1a4a84b7afe809c96c557a/FLAGebb9ed724 [2022-11-18 19:32:56,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro/data/71b48712c/c23b8a915f1a4a84b7afe809c96c557a [2022-11-18 19:32:56,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:32:56,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:32:56,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:32:56,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:32:56,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:32:56,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66bd148f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56, skipping insertion in model container [2022-11-18 19:32:56,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:32:56,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:32:57,252 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_f9fb6397-d575-489a-a96a-2049d28265f1/sv-benchmarks/c/goblint-regression/28-race_reach_22-deref_read_racefree.i[30176,30189] [2022-11-18 19:32:57,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:32:57,289 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:32:57,336 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_f9fb6397-d575-489a-a96a-2049d28265f1/sv-benchmarks/c/goblint-regression/28-race_reach_22-deref_read_racefree.i[30176,30189] [2022-11-18 19:32:57,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:32:57,389 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:32:57,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:57 WrapperNode [2022-11-18 19:32:57,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:32:57,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:32:57,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:32:57,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:32:57,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:57" (1/1) ... [2022-11-18 19:32:57,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:57" (1/1) ... [2022-11-18 19:32:57,463 INFO L138 Inliner]: procedures = 170, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-18 19:32:57,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:32:57,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:32:57,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:32:57,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:32:57,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:57" (1/1) ... [2022-11-18 19:32:57,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:57" (1/1) ... [2022-11-18 19:32:57,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:57" (1/1) ... [2022-11-18 19:32:57,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:57" (1/1) ... [2022-11-18 19:32:57,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:57" (1/1) ... [2022-11-18 19:32:57,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:57" (1/1) ... [2022-11-18 19:32:57,511 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:57" (1/1) ... [2022-11-18 19:32:57,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:57" (1/1) ... [2022-11-18 19:32:57,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:32:57,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:32:57,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:32:57,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:32:57,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:57" (1/1) ... [2022-11-18 19:32:57,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:32:57,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:57,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:32:57,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:32:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:32:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:32:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:32:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:32:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:32:57,608 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 19:32:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 19:32:57,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:32:57,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:32:57,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:32:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:32:57,610 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 19:32:57,794 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:32:57,796 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:32:58,056 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:32:58,063 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:32:58,071 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-18 19:32:58,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:58 BoogieIcfgContainer [2022-11-18 19:32:58,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:32:58,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:32:58,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:32:58,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:32:58,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:32:56" (1/3) ... [2022-11-18 19:32:58,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@935255a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:32:58, skipping insertion in model container [2022-11-18 19:32:58,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:57" (2/3) ... [2022-11-18 19:32:58,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@935255a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:32:58, skipping insertion in model container [2022-11-18 19:32:58,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:58" (3/3) ... [2022-11-18 19:32:58,110 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_22-deref_read_racefree.i [2022-11-18 19:32:58,120 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:32:58,138 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:32:58,139 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-18 19:32:58,139 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:32:58,213 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:32:58,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 117 transitions, 239 flow [2022-11-18 19:32:58,317 INFO L130 PetriNetUnfolder]: 14/150 cut-off events. [2022-11-18 19:32:58,318 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:32:58,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 150 events. 14/150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 357 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 82. Up to 4 conditions per place. [2022-11-18 19:32:58,325 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 117 transitions, 239 flow [2022-11-18 19:32:58,330 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 117 transitions, 239 flow [2022-11-18 19:32:58,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:32:58,347 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;@1aa24682, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:32:58,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-18 19:32:58,366 INFO L130 PetriNetUnfolder]: 1/57 cut-off events. [2022-11-18 19:32:58,366 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:32:58,367 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:32:58,367 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] [2022-11-18 19:32:58,368 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)] === [2022-11-18 19:32:58,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:58,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1459644197, now seen corresponding path program 1 times [2022-11-18 19:32:58,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:58,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784665585] [2022-11-18 19:32:58,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:58,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:58,833 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 19:32:58,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:58,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784665585] [2022-11-18 19:32:58,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784665585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:32:58,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:32:58,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:32:58,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535373327] [2022-11-18 19:32:58,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:58,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:32:58,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:58,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:32:58,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:32:58,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 117 [2022-11-18 19:32:58,900 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 117 transitions, 239 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:32:58,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:32:58,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 117 [2022-11-18 19:32:58,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:32:58,994 INFO L130 PetriNetUnfolder]: 0/108 cut-off events. [2022-11-18 19:32:58,995 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:32:58,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 108 events. 0/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 36/138 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-11-18 19:32:59,008 INFO L137 encePairwiseOnDemand]: 100/117 looper letters, 9 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2022-11-18 19:32:59,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 106 transitions, 243 flow [2022-11-18 19:32:59,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:32:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:32:59,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 510 transitions. [2022-11-18 19:32:59,066 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8717948717948718 [2022-11-18 19:32:59,067 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 510 transitions. [2022-11-18 19:32:59,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 510 transitions. [2022-11-18 19:32:59,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:32:59,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 510 transitions. [2022-11-18 19:32:59,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 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 19:32:59,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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 19:32:59,097 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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 19:32:59,099 INFO L175 Difference]: Start difference. First operand has 110 places, 117 transitions, 239 flow. Second operand 5 states and 510 transitions. [2022-11-18 19:32:59,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 106 transitions, 243 flow [2022-11-18 19:32:59,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 106 transitions, 243 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:32:59,114 INFO L231 Difference]: Finished difference. Result has 112 places, 104 transitions, 225 flow [2022-11-18 19:32:59,116 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=225, PETRI_PLACES=112, PETRI_TRANSITIONS=104} [2022-11-18 19:32:59,120 INFO L288 CegarLoopForPetriNet]: 110 programPoint places, 2 predicate places. [2022-11-18 19:32:59,121 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 104 transitions, 225 flow [2022-11-18 19:32:59,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:32:59,122 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:32:59,123 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] [2022-11-18 19:32:59,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:32:59,123 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)] === [2022-11-18 19:32:59,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:59,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1903282342, now seen corresponding path program 1 times [2022-11-18 19:32:59,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:59,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939953854] [2022-11-18 19:32:59,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:59,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:59,195 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:32:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:59,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:32:59,261 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:32:59,262 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2022-11-18 19:32:59,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2022-11-18 19:32:59,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2022-11-18 19:32:59,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2022-11-18 19:32:59,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2022-11-18 19:32:59,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2022-11-18 19:32:59,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2022-11-18 19:32:59,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2022-11-18 19:32:59,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2022-11-18 19:32:59,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2022-11-18 19:32:59,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2022-11-18 19:32:59,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:32:59,267 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 19:32:59,274 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:32:59,274 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:32:59,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:32:59 BasicIcfg [2022-11-18 19:32:59,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:32:59,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:32:59,320 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:32:59,320 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:32:59,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:58" (3/4) ... [2022-11-18 19:32:59,322 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 19:32:59,367 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:32:59,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:32:59,368 INFO L158 Benchmark]: Toolchain (without parser) took 2628.07ms. Allocated memory was 100.7MB in the beginning and 142.6MB in the end (delta: 41.9MB). Free memory was 71.6MB in the beginning and 93.7MB in the end (delta: -22.1MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2022-11-18 19:32:59,369 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:32:59,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 651.38ms. Allocated memory is still 100.7MB. Free memory was 71.4MB in the beginning and 66.3MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:32:59,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.18ms. Allocated memory is still 100.7MB. Free memory was 66.3MB in the beginning and 64.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:32:59,371 INFO L158 Benchmark]: Boogie Preprocessor took 57.52ms. Allocated memory is still 100.7MB. Free memory was 64.3MB in the beginning and 62.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:32:59,371 INFO L158 Benchmark]: RCFGBuilder took 552.68ms. Allocated memory is still 100.7MB. Free memory was 62.6MB in the beginning and 47.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 19:32:59,372 INFO L158 Benchmark]: TraceAbstraction took 1218.53ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 99.0MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 19:32:59,372 INFO L158 Benchmark]: Witness Printer took 47.69ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 93.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:32:59,376 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 651.38ms. Allocated memory is still 100.7MB. Free memory was 71.4MB in the beginning and 66.3MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.18ms. Allocated memory is still 100.7MB. Free memory was 66.3MB in the beginning and 64.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.52ms. Allocated memory is still 100.7MB. Free memory was 64.3MB in the beginning and 62.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 552.68ms. Allocated memory is still 100.7MB. Free memory was 62.6MB in the beginning and 47.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1218.53ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 99.0MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 47.69ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 93.7MB in the end (delta: 5.2MB). 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, 143 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=239occurred 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! [2022-11-18 19:32:59,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9fb6397-d575-489a-a96a-2049d28265f1/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(OVERFLOW)