./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix000.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix000.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba --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 fd6a5bc5d3f013f4ace97b77d830608c8280eaa5bc8f461c3acae231027617e4 --- 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-b5237d8 [2022-11-22 00:18:22,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:18:22,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:18:22,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:18:22,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:18:22,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:18:22,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:18:22,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:18:22,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:18:22,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:18:22,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:18:22,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:18:22,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:18:22,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:18:22,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:18:22,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:18:22,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:18:22,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:18:22,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:18:22,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:18:22,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:18:22,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:18:22,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:18:22,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:18:22,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:18:22,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:18:22,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:18:22,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:18:22,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:18:22,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:18:22,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:18:22,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:18:22,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:18:22,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:18:22,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:18:22,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:18:22,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:18:22,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:18:22,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:18:22,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:18:22,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:18:22,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 00:18:22,588 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:18:22,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:18:22,591 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:18:22,591 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:18:22,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:18:22,592 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:18:22,592 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:18:22,593 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:18:22,593 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:18:22,593 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:18:22,594 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:18:22,595 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:18:22,595 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:18:22,595 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:18:22,595 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:18:22,596 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:18:22,596 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:18:22,596 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:18:22,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:18:22,597 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:18:22,597 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:18:22,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:18:22,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:18:22,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:18:22,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:18:22,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:18:22,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:18:22,600 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:18:22,600 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:18:22,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:18:22,601 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:18:22,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:18:22,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:18:22,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:18:22,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:18:22,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:18:22,602 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:18:22,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:18:22,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:18:22,605 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:18:22,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:18:22,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:18:22,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:18:22,606 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_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd6a5bc5d3f013f4ace97b77d830608c8280eaa5bc8f461c3acae231027617e4 [2022-11-22 00:18:22,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:18:23,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:18:23,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:18:23,035 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:18:23,036 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:18:23,037 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-wmm/mix000.opt.i [2022-11-22 00:18:26,405 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:18:26,757 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:18:26,762 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/sv-benchmarks/c/pthread-wmm/mix000.opt.i [2022-11-22 00:18:26,783 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/data/e529ca54f/5cb665cb4a7f42edbbe33dfada7b0f27/FLAG70ae048ae [2022-11-22 00:18:26,806 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/data/e529ca54f/5cb665cb4a7f42edbbe33dfada7b0f27 [2022-11-22 00:18:26,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:18:26,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:18:26,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:18:26,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:18:26,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:18:26,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:18:26" (1/1) ... [2022-11-22 00:18:26,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@597e08c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:18:26, skipping insertion in model container [2022-11-22 00:18:26,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:18:26" (1/1) ... [2022-11-22 00:18:26,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:18:26,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:18:27,133 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_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/sv-benchmarks/c/pthread-wmm/mix000.opt.i[987,1000] [2022-11-22 00:18:27,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:18:27,413 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:18:27,427 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_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/sv-benchmarks/c/pthread-wmm/mix000.opt.i[987,1000] [2022-11-22 00:18:27,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:18:27,545 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:18:27,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:18:27 WrapperNode [2022-11-22 00:18:27,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:18:27,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:18:27,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:18:27,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:18:27,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:18:27" (1/1) ... [2022-11-22 00:18:27,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:18:27" (1/1) ... [2022-11-22 00:18:27,624 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 135 [2022-11-22 00:18:27,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:18:27,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:18:27,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:18:27,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:18:27,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:18:27" (1/1) ... [2022-11-22 00:18:27,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:18:27" (1/1) ... [2022-11-22 00:18:27,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:18:27" (1/1) ... [2022-11-22 00:18:27,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:18:27" (1/1) ... [2022-11-22 00:18:27,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:18:27" (1/1) ... [2022-11-22 00:18:27,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:18:27" (1/1) ... [2022-11-22 00:18:27,656 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:18:27" (1/1) ... [2022-11-22 00:18:27,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:18:27" (1/1) ... [2022-11-22 00:18:27,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:18:27,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:18:27,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:18:27,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:18:27,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:18:27" (1/1) ... [2022-11-22 00:18:27,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:18:27,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:18:27,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:18:27,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:18:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:18:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 00:18:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:18:27,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:18:27,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:18:27,773 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-22 00:18:27,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-22 00:18:27,773 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-22 00:18:27,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-22 00:18:27,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:18:27,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 00:18:27,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:18:27,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:18:27,776 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 00:18:28,008 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:18:28,010 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:18:28,505 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:18:28,806 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:18:28,806 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 00:18:28,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:18:28 BoogieIcfgContainer [2022-11-22 00:18:28,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:18:28,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:18:28,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:18:28,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:18:28,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:18:26" (1/3) ... [2022-11-22 00:18:28,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b22d900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:18:28, skipping insertion in model container [2022-11-22 00:18:28,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:18:27" (2/3) ... [2022-11-22 00:18:28,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b22d900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:18:28, skipping insertion in model container [2022-11-22 00:18:28,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:18:28" (3/3) ... [2022-11-22 00:18:28,819 INFO L112 eAbstractionObserver]: Analyzing ICFG mix000.opt.i [2022-11-22 00:18:28,828 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 00:18:28,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:18:28,836 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 00:18:28,837 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 00:18:28,903 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 00:18:28,958 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:18:28,983 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 100 transitions, 210 flow [2022-11-22 00:18:28,989 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 100 transitions, 210 flow [2022-11-22 00:18:28,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 100 transitions, 210 flow [2022-11-22 00:18:29,067 INFO L130 PetriNetUnfolder]: 2/98 cut-off events. [2022-11-22 00:18:29,067 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 00:18:29,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 98 events. 2/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-11-22 00:18:29,075 INFO L119 LiptonReduction]: Number of co-enabled transitions 1446 [2022-11-22 00:18:34,223 INFO L134 LiptonReduction]: Checked pairs total: 4892 [2022-11-22 00:18:34,223 INFO L136 LiptonReduction]: Total number of compositions: 93 [2022-11-22 00:18:34,238 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 23 transitions, 56 flow [2022-11-22 00:18:34,299 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 236 states, 228 states have (on average 2.754385964912281) internal successors, (628), 235 states have internal predecessors, (628), 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) [2022-11-22 00:18:34,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:18:34,333 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;@2dd8054b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:18:34,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-22 00:18:34,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 236 states, 228 states have (on average 2.754385964912281) internal successors, (628), 235 states have internal predecessors, (628), 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) [2022-11-22 00:18:34,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 00:18:34,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:34,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 00:18:34,345 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-22 00:18:34,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:34,352 INFO L85 PathProgramCache]: Analyzing trace with hash 452369752, now seen corresponding path program 1 times [2022-11-22 00:18:34,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:34,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222611769] [2022-11-22 00:18:34,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:34,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:18:34,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:34,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222611769] [2022-11-22 00:18:34,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222611769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:34,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:34,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:18:34,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168247854] [2022-11-22 00:18:34,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:34,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:18:34,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:34,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:18:34,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:18:34,744 INFO L87 Difference]: Start difference. First operand has 236 states, 228 states have (on average 2.754385964912281) internal successors, (628), 235 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-22 00:18:34,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:34,855 INFO L93 Difference]: Finished difference Result 84 states and 143 transitions. [2022-11-22 00:18:34,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:18:34,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 00:18:34,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:34,867 INFO L225 Difference]: With dead ends: 84 [2022-11-22 00:18:34,868 INFO L226 Difference]: Without dead ends: 84 [2022-11-22 00:18:34,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:18:34,873 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:34,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:18:34,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-22 00:18:34,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-11-22 00:18:34,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.7875) internal successors, (143), 83 states have internal predecessors, (143), 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) [2022-11-22 00:18:34,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 143 transitions. [2022-11-22 00:18:34,931 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 143 transitions. Word has length 5 [2022-11-22 00:18:34,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:34,933 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 143 transitions. [2022-11-22 00:18:34,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-22 00:18:34,937 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 143 transitions. [2022-11-22 00:18:34,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 00:18:34,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:34,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:18:34,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:18:34,940 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-22 00:18:34,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:34,941 INFO L85 PathProgramCache]: Analyzing trace with hash 450223872, now seen corresponding path program 1 times [2022-11-22 00:18:34,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:34,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389320563] [2022-11-22 00:18:34,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:34,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:35,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:18:35,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:35,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389320563] [2022-11-22 00:18:35,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389320563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:35,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:35,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:18:35,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843498045] [2022-11-22 00:18:35,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:35,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:18:35,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:35,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:18:35,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:18:35,147 INFO L87 Difference]: Start difference. First operand 84 states and 143 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-22 00:18:35,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:35,230 INFO L93 Difference]: Finished difference Result 76 states and 129 transitions. [2022-11-22 00:18:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:18:35,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-22 00:18:35,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:35,232 INFO L225 Difference]: With dead ends: 76 [2022-11-22 00:18:35,232 INFO L226 Difference]: Without dead ends: 76 [2022-11-22 00:18:35,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:18:35,234 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:35,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 8 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:18:35,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-22 00:18:35,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-11-22 00:18:35,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 1.7432432432432432) internal successors, (129), 75 states have internal predecessors, (129), 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) [2022-11-22 00:18:35,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 129 transitions. [2022-11-22 00:18:35,242 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 129 transitions. Word has length 12 [2022-11-22 00:18:35,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:35,242 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 129 transitions. [2022-11-22 00:18:35,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-22 00:18:35,242 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 129 transitions. [2022-11-22 00:18:35,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 00:18:35,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:18:35,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:18:35,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:18:35,244 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-22 00:18:35,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:18:35,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1072037674, now seen corresponding path program 1 times [2022-11-22 00:18:35,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:18:35,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857451073] [2022-11-22 00:18:35,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:18:35,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:18:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:18:35,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:18:35,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:18:35,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857451073] [2022-11-22 00:18:35,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857451073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:18:35,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:18:35,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:18:35,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559886834] [2022-11-22 00:18:35,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:18:35,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:18:35,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:18:35,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:18:35,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:18:35,366 INFO L87 Difference]: Start difference. First operand 76 states and 129 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-22 00:18:35,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:18:35,422 INFO L93 Difference]: Finished difference Result 41 states and 67 transitions. [2022-11-22 00:18:35,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:18:35,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-22 00:18:35,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:18:35,423 INFO L225 Difference]: With dead ends: 41 [2022-11-22 00:18:35,424 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 00:18:35,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:18:35,428 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 18 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:18:35,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 4 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:18:35,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 00:18:35,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 00:18:35,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-22 00:18:35,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 00:18:35,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-11-22 00:18:35,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:18:35,432 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 00:18:35,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-22 00:18:35,432 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 00:18:35,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 00:18:35,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-22 00:18:35,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-22 00:18:35,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-22 00:18:35,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-22 00:18:35,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-22 00:18:35,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-22 00:18:35,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-22 00:18:35,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-22 00:18:35,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-22 00:18:35,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-22 00:18:35,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:18:35,450 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-22 00:18:35,455 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 00:18:35,455 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:18:35,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:18:35 BasicIcfg [2022-11-22 00:18:35,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:18:35,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:18:35,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:18:35,459 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:18:35,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:18:28" (3/4) ... [2022-11-22 00:18:35,462 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 00:18:35,469 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-22 00:18:35,469 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-22 00:18:35,475 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-22 00:18:35,476 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-22 00:18:35,476 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 00:18:35,476 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 00:18:35,525 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:18:35,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:18:35,527 INFO L158 Benchmark]: Toolchain (without parser) took 8714.11ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 130.2MB in the beginning and 103.3MB in the end (delta: 26.9MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. [2022-11-22 00:18:35,527 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 127.9MB. Free memory was 70.1MB in the beginning and 70.0MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:18:35,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 729.23ms. Allocated memory is still 176.2MB. Free memory was 129.5MB in the beginning and 106.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-22 00:18:35,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.89ms. Allocated memory is still 176.2MB. Free memory was 106.4MB in the beginning and 103.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:18:35,529 INFO L158 Benchmark]: Boogie Preprocessor took 37.24ms. Allocated memory is still 176.2MB. Free memory was 103.6MB in the beginning and 102.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:18:35,529 INFO L158 Benchmark]: RCFGBuilder took 1146.16ms. Allocated memory is still 176.2MB. Free memory was 102.2MB in the beginning and 127.6MB in the end (delta: -25.5MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-11-22 00:18:35,530 INFO L158 Benchmark]: TraceAbstraction took 6646.70ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 127.6MB in the beginning and 106.4MB in the end (delta: 21.2MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2022-11-22 00:18:35,530 INFO L158 Benchmark]: Witness Printer took 67.88ms. Allocated memory is still 211.8MB. Free memory was 106.4MB in the beginning and 103.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:18:35,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 127.9MB. Free memory was 70.1MB in the beginning and 70.0MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 729.23ms. Allocated memory is still 176.2MB. Free memory was 129.5MB in the beginning and 106.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.89ms. Allocated memory is still 176.2MB. Free memory was 106.4MB in the beginning and 103.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.24ms. Allocated memory is still 176.2MB. Free memory was 103.6MB in the beginning and 102.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1146.16ms. Allocated memory is still 176.2MB. Free memory was 102.2MB in the beginning and 127.6MB in the end (delta: -25.5MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6646.70ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 127.6MB in the beginning and 106.4MB in the end (delta: 21.2MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. * Witness Printer took 67.88ms. Allocated memory is still 211.8MB. Free memory was 106.4MB in the beginning and 103.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.2s, 105 PlacesBefore, 29 PlacesAfterwards, 100 TransitionsBefore, 23 TransitionsAfterwards, 1446 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 93 TotalNumberOfCompositions, 4892 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2149, independent: 1948, independent conditional: 0, independent unconditional: 1948, dependent: 201, dependent conditional: 0, dependent unconditional: 201, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1101, independent: 1043, independent conditional: 0, independent unconditional: 1043, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1101, independent: 1019, independent conditional: 0, independent unconditional: 1019, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 82, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 609, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 561, dependent conditional: 0, dependent unconditional: 561, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2149, independent: 905, independent conditional: 0, independent unconditional: 905, dependent: 143, dependent conditional: 0, dependent unconditional: 143, unknown: 1101, unknown conditional: 0, unknown unconditional: 1101] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 84, Positive conditional cache size: 0, Positive unconditional cache size: 84, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, 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 - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 122 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 10 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-22 00:18:35,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a23fe-8e3d-4b3e-a90d-0bed249cd0eb/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE