./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing-overflow.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8e4241de9ab6aaee40e34a0aea220f2af2541cd79c1f3c4ee08672ad0bf05f65 --- 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-2329fc7 [2022-12-14 13:54:22,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:54:22,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:54:22,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:54:22,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:54:22,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:54:22,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:54:22,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:54:22,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:54:22,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:54:22,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:54:22,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:54:22,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:54:22,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:54:22,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:54:22,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:54:22,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:54:22,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:54:22,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:54:22,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:54:22,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:54:22,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:54:22,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:54:22,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:54:22,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:54:22,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:54:22,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:54:22,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:54:22,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:54:22,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:54:22,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:54:22,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:54:22,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:54:22,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:54:22,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:54:22,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:54:22,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:54:22,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:54:22,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:54:22,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:54:22,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:54:22,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 13:54:22,313 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:54:22,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:54:22,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:54:22,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:54:22,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:54:22,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:54:22,314 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:54:22,315 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:54:22,315 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:54:22,315 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:54:22,315 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:54:22,315 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:54:22,316 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:54:22,316 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:54:22,316 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:54:22,316 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:54:22,316 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:54:22,317 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:54:22,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:54:22,317 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:54:22,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:54:22,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:54:22,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:54:22,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:54:22,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:54:22,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:54:22,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:54:22,319 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:54:22,319 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:54:22,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:54:22,319 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:54:22,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:54:22,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:54:22,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:54:22,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:54:22,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:54:22,321 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:54:22,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:54:22,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:54:22,321 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:54:22,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:54:22,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:54:22,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:54:22,326 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_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e4241de9ab6aaee40e34a0aea220f2af2541cd79c1f3c4ee08672ad0bf05f65 [2022-12-14 13:54:22,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:54:22,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:54:22,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:54:22,551 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:54:22,552 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:54:22,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing-overflow.i [2022-12-14 13:54:25,154 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:54:25,364 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:54:25,365 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing-overflow.i [2022-12-14 13:54:25,377 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/data/e9ba02782/e44ff4682d67412f968a0c3686f27536/FLAG9ff044a2b [2022-12-14 13:54:25,389 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/data/e9ba02782/e44ff4682d67412f968a0c3686f27536 [2022-12-14 13:54:25,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:54:25,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:54:25,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:54:25,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:54:25,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:54:25,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:54:25" (1/1) ... [2022-12-14 13:54:25,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d7534b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:54:25, skipping insertion in model container [2022-12-14 13:54:25,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:54:25" (1/1) ... [2022-12-14 13:54:25,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:54:25,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:54:25,827 WARN L237 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_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing-overflow.i[47038,47051] [2022-12-14 13:54:25,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:54:25,857 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:54:25,884 WARN L237 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_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing-overflow.i[47038,47051] [2022-12-14 13:54:25,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:54:25,927 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:54:25,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:54:25 WrapperNode [2022-12-14 13:54:25,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:54:25,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:54:25,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:54:25,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:54:25,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:54:25" (1/1) ... [2022-12-14 13:54:25,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:54:25" (1/1) ... [2022-12-14 13:54:25,963 INFO L138 Inliner]: procedures = 271, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 214 [2022-12-14 13:54:25,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:54:25,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:54:25,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:54:25,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:54:25,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:54:25" (1/1) ... [2022-12-14 13:54:25,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:54:25" (1/1) ... [2022-12-14 13:54:25,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:54:25" (1/1) ... [2022-12-14 13:54:25,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:54:25" (1/1) ... [2022-12-14 13:54:25,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:54:25" (1/1) ... [2022-12-14 13:54:25,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:54:25" (1/1) ... [2022-12-14 13:54:25,983 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:54:25" (1/1) ... [2022-12-14 13:54:25,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:54:25" (1/1) ... [2022-12-14 13:54:25,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:54:25,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:54:25,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:54:25,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:54:25,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:54:25" (1/1) ... [2022-12-14 13:54:25,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:54:26,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:54:26,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:54:26,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:54:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:54:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:54:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:54:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:54:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 13:54:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:54:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 13:54:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 13:54:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:54:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:54:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:54:26,043 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 13:54:26,152 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:54:26,154 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:54:26,436 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:54:26,445 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:54:26,446 INFO L300 CfgBuilder]: Removed 22 assume(true) statements. [2022-12-14 13:54:26,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:54:26 BoogieIcfgContainer [2022-12-14 13:54:26,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:54:26,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:54:26,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:54:26,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:54:26,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:54:25" (1/3) ... [2022-12-14 13:54:26,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a2b679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:54:26, skipping insertion in model container [2022-12-14 13:54:26,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:54:25" (2/3) ... [2022-12-14 13:54:26,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a2b679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:54:26, skipping insertion in model container [2022-12-14 13:54:26,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:54:26" (3/3) ... [2022-12-14 13:54:26,457 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_78-equ_racing-overflow.i [2022-12-14 13:54:26,465 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 13:54:26,472 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:54:26,472 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-12-14 13:54:26,473 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 13:54:26,534 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 13:54:26,562 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 13:54:26,573 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 233 transitions, 474 flow [2022-12-14 13:54:26,576 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 208 places, 233 transitions, 474 flow [2022-12-14 13:54:26,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 233 transitions, 474 flow [2022-12-14 13:54:26,670 INFO L130 PetriNetUnfolder]: 42/312 cut-off events. [2022-12-14 13:54:26,671 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 13:54:26,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 312 events. 42/312 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1038 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 153. Up to 8 conditions per place. [2022-12-14 13:54:26,683 INFO L119 LiptonReduction]: Number of co-enabled transitions 11570 [2022-12-14 13:54:32,625 INFO L134 LiptonReduction]: Checked pairs total: 22776 [2022-12-14 13:54:32,625 INFO L136 LiptonReduction]: Total number of compositions: 235 [2022-12-14 13:54:32,631 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 81 transitions, 170 flow [2022-12-14 13:54:32,667 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 647 states, 592 states have (on average 3.045608108108108) internal successors, (1803), 646 states have internal predecessors, (1803), 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) [2022-12-14 13:54:32,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:54:32,683 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=FINITE_AUTOMATA, 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;@466a64b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:54:32,683 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-12-14 13:54:32,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 647 states, 592 states have (on average 3.045608108108108) internal successors, (1803), 646 states have internal predecessors, (1803), 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) [2022-12-14 13:54:32,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 13:54:32,689 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:54:32,690 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 13:54:32,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-12-14 13:54:32,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:54:32,693 INFO L85 PathProgramCache]: Analyzing trace with hash 905, now seen corresponding path program 1 times [2022-12-14 13:54:32,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:54:32,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949823763] [2022-12-14 13:54:32,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:54:32,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:54:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:54:32,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:54:32,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:54:32,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949823763] [2022-12-14 13:54:32,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949823763] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:54:32,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:54:32,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 13:54:32,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364237627] [2022-12-14 13:54:32,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:54:32,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:54:32,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:54:32,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:54:32,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:54:32,796 INFO L87 Difference]: Start difference. First operand has 647 states, 592 states have (on average 3.045608108108108) internal successors, (1803), 646 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 13:54:32,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:54:32,876 INFO L93 Difference]: Finished difference Result 644 states and 1262 transitions. [2022-12-14 13:54:32,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:54:32,879 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-12-14 13:54:32,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:54:32,894 INFO L225 Difference]: With dead ends: 644 [2022-12-14 13:54:32,894 INFO L226 Difference]: Without dead ends: 626 [2022-12-14 13:54:32,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:54:32,898 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:54:32,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:54:32,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-12-14 13:54:32,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 626. [2022-12-14 13:54:32,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 576 states have (on average 2.138888888888889) internal successors, (1232), 625 states have internal predecessors, (1232), 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) [2022-12-14 13:54:32,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 1232 transitions. [2022-12-14 13:54:32,955 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 1232 transitions. Word has length 1 [2022-12-14 13:54:32,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:54:32,956 INFO L495 AbstractCegarLoop]: Abstraction has 626 states and 1232 transitions. [2022-12-14 13:54:32,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 13:54:32,956 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 1232 transitions. [2022-12-14 13:54:32,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 13:54:32,956 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:54:32,956 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 13:54:32,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:54:32,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-12-14 13:54:32,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:54:32,957 INFO L85 PathProgramCache]: Analyzing trace with hash 908, now seen corresponding path program 1 times [2022-12-14 13:54:32,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:54:32,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016678025] [2022-12-14 13:54:32,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:54:32,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:54:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:54:32,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:54:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:54:33,024 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:54:33,024 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:54:33,025 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 21 remaining) [2022-12-14 13:54:33,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-12-14 13:54:33,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-12-14 13:54:33,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-12-14 13:54:33,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-12-14 13:54:33,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-12-14 13:54:33,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-12-14 13:54:33,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-12-14 13:54:33,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-12-14 13:54:33,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-12-14 13:54:33,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-12-14 13:54:33,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-12-14 13:54:33,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 21 remaining) [2022-12-14 13:54:33,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-12-14 13:54:33,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2022-12-14 13:54:33,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2022-12-14 13:54:33,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-12-14 13:54:33,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-12-14 13:54:33,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-12-14 13:54:33,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-12-14 13:54:33,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-12-14 13:54:33,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:54:33,034 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 13:54:33,039 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 13:54:33,039 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:54:33,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:54:33 BasicIcfg [2022-12-14 13:54:33,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:54:33,053 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:54:33,053 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:54:33,053 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:54:33,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:54:26" (3/4) ... [2022-12-14 13:54:33,056 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 13:54:33,079 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 13:54:33,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:54:33,080 INFO L158 Benchmark]: Toolchain (without parser) took 7687.53ms. Allocated memory is still 157.3MB. Free memory was 105.4MB in the beginning and 37.1MB in the end (delta: 68.3MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2022-12-14 13:54:33,080 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 111.1MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:54:33,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.91ms. Allocated memory is still 157.3MB. Free memory was 105.1MB in the beginning and 76.3MB in the end (delta: 28.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 13:54:33,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.19ms. Allocated memory is still 157.3MB. Free memory was 76.3MB in the beginning and 73.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 13:54:33,081 INFO L158 Benchmark]: Boogie Preprocessor took 22.26ms. Allocated memory is still 157.3MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:54:33,082 INFO L158 Benchmark]: RCFGBuilder took 461.38ms. Allocated memory is still 157.3MB. Free memory was 71.3MB in the beginning and 122.1MB in the end (delta: -50.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2022-12-14 13:54:33,082 INFO L158 Benchmark]: TraceAbstraction took 6602.04ms. Allocated memory is still 157.3MB. Free memory was 121.3MB in the beginning and 38.3MB in the end (delta: 83.1MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. [2022-12-14 13:54:33,082 INFO L158 Benchmark]: Witness Printer took 26.33ms. Allocated memory is still 157.3MB. Free memory was 38.3MB in the beginning and 37.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:54:33,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 111.1MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.91ms. Allocated memory is still 157.3MB. Free memory was 105.1MB in the beginning and 76.3MB in the end (delta: 28.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.19ms. Allocated memory is still 157.3MB. Free memory was 76.3MB in the beginning and 73.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.26ms. Allocated memory is still 157.3MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 461.38ms. Allocated memory is still 157.3MB. Free memory was 71.3MB in the beginning and 122.1MB in the end (delta: -50.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6602.04ms. Allocated memory is still 157.3MB. Free memory was 121.3MB in the beginning and 38.3MB in the end (delta: 83.1MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. * Witness Printer took 26.33ms. Allocated memory is still 157.3MB. Free memory was 38.3MB in the beginning and 37.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0s, 208 PlacesBefore, 60 PlacesAfterwards, 233 TransitionsBefore, 81 TransitionsAfterwards, 11570 CoEnabledTransitionPairs, 7 FixpointIterations, 88 TrivialSequentialCompositions, 120 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 18 ConcurrentYvCompositions, 4 ChoiceCompositions, 235 TotalNumberOfCompositions, 22776 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11800, independent: 11446, independent conditional: 0, independent unconditional: 11446, dependent: 354, dependent conditional: 0, dependent unconditional: 354, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7362, independent: 7279, independent conditional: 0, independent unconditional: 7279, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7362, independent: 7044, independent conditional: 0, independent unconditional: 7044, dependent: 318, dependent conditional: 0, dependent unconditional: 318, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 318, independent: 235, independent conditional: 0, independent unconditional: 235, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 244, independent: 114, independent conditional: 0, independent unconditional: 114, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11800, independent: 4167, independent conditional: 0, independent unconditional: 4167, dependent: 271, dependent conditional: 0, dependent unconditional: 271, unknown: 7362, unknown conditional: 0, unknown unconditional: 7362] , Statistics on independence cache: Total cache size (in pairs): 446, Positive cache size: 408, Positive conditional cache size: 0, Positive unconditional cache size: 408, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1026]: integer overflow possible integer overflow possible We found a FailurePath: [L1004] pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1006-L1010] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L1020] int x = __VERIFIER_nondet_int(); [L1021] struct s *s; [L1022] int *d; [L1023] pthread_mutex_t *m; [L1024] COND TRUE \read(x) [L1025] s = &A [L1026] x++ VAL [__global_lock={3:0}, A={4:0}, B={5:0}, s={4:0}, x=2147483647, x++=2147483647] - UnprovableResult [Line: 1026]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1033]: 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: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: 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, 260 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 8 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=647occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 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! [2022-12-14 13:54:33,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0f920c-a24d-44d5-b7c9-7c326d9997cb/bin/utaipan-gh47qXpMRh/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)