./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/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_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/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 64bit --witnessprinter.graph.data.programhash 667f977d647c7ddb67528e51499f9ca669bb7b719340387a8cc9437d2a9c5036 --- 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 01:31:18,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:31:18,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:31:18,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:31:18,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:31:18,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:31:18,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:31:18,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:31:18,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:31:18,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:31:18,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:31:18,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:31:18,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:31:18,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:31:18,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:31:18,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:31:18,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:31:18,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:31:18,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:31:18,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:31:18,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:31:18,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:31:18,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:31:18,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:31:18,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:31:18,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:31:18,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:31:18,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:31:18,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:31:18,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:31:18,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:31:18,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:31:18,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:31:18,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:31:18,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:31:18,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:31:18,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:31:18,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:31:18,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:31:18,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:31:18,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:31:18,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 01:31:18,973 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:31:18,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:31:18,973 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:31:18,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:31:18,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:31:18,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:31:18,974 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:31:18,975 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:31:18,975 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:31:18,975 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:31:18,975 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:31:18,975 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:31:18,976 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:31:18,976 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:31:18,976 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:31:18,976 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:31:18,976 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:31:18,977 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:31:18,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:31:18,978 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:31:18,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:31:18,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:31:18,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:31:18,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:31:18,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:31:18,979 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:31:18,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:31:18,979 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:31:18,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:31:18,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:31:18,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:31:18,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:31:18,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:31:18,980 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:31:18,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:31:18,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:31:18,981 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:31:18,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:31:18,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:31:18,981 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:31:18,982 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_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 667f977d647c7ddb67528e51499f9ca669bb7b719340387a8cc9437d2a9c5036 [2022-11-22 01:31:19,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:31:19,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:31:19,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:31:19,260 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:31:19,261 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:31:19,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/termination-crafted/NonTerminationSimple3.c [2022-11-22 01:31:22,366 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:31:22,591 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:31:22,592 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/sv-benchmarks/c/termination-crafted/NonTerminationSimple3.c [2022-11-22 01:31:22,597 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/bin/utaipan-g80aRyZoba/data/a00bffc73/72772cb90a234a84b1c6193494fb2247/FLAG4492a50c0 [2022-11-22 01:31:22,618 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/bin/utaipan-g80aRyZoba/data/a00bffc73/72772cb90a234a84b1c6193494fb2247 [2022-11-22 01:31:22,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:31:22,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:31:22,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:31:22,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:31:22,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:31:22,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:31:22" (1/1) ... [2022-11-22 01:31:22,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e9156a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:22, skipping insertion in model container [2022-11-22 01:31:22,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:31:22" (1/1) ... [2022-11-22 01:31:22,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:31:22,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:31:22,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:31:22,849 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:31:22,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:31:22,874 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:31:22,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:22 WrapperNode [2022-11-22 01:31:22,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:31:22,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:31:22,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:31:22,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:31:22,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:22" (1/1) ... [2022-11-22 01:31:22,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:22" (1/1) ... [2022-11-22 01:31:22,902 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-11-22 01:31:22,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:31:22,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:31:22,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:31:22,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:31:22,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:22" (1/1) ... [2022-11-22 01:31:22,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:22" (1/1) ... [2022-11-22 01:31:22,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:22" (1/1) ... [2022-11-22 01:31:22,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:22" (1/1) ... [2022-11-22 01:31:22,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:22" (1/1) ... [2022-11-22 01:31:22,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:22" (1/1) ... [2022-11-22 01:31:22,917 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:22" (1/1) ... [2022-11-22 01:31:22,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:22" (1/1) ... [2022-11-22 01:31:22,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:31:22,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:31:22,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:31:22,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:31:22,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:22" (1/1) ... [2022-11-22 01:31:22,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:31:22,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:22,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:31:22,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:31:23,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:31:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:31:23,080 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:31:23,082 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:31:23,194 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:31:23,222 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:31:23,223 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:31:23,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:31:23 BoogieIcfgContainer [2022-11-22 01:31:23,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:31:23,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:31:23,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:31:23,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:31:23,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:31:22" (1/3) ... [2022-11-22 01:31:23,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@722e0589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:31:23, skipping insertion in model container [2022-11-22 01:31:23,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:22" (2/3) ... [2022-11-22 01:31:23,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@722e0589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:31:23, skipping insertion in model container [2022-11-22 01:31:23,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:31:23" (3/3) ... [2022-11-22 01:31:23,243 INFO L112 eAbstractionObserver]: Analyzing ICFG NonTerminationSimple3.c [2022-11-22 01:31:23,263 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:31:23,263 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 01:31:23,329 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:31:23,337 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;@4d420f59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:31:23,338 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 01:31:23,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 4 states have (on average 1.75) internal successors, (7), 6 states have internal predecessors, (7), 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 01:31:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 01:31:23,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:23,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 01:31:23,349 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 01:31:23,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:23,358 INFO L85 PathProgramCache]: Analyzing trace with hash 52247, now seen corresponding path program 1 times [2022-11-22 01:31:23,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:23,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351381528] [2022-11-22 01:31:23,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:23,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:31:23,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:31:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:31:23,548 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:31:23,551 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:31:23,552 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-22 01:31:23,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-22 01:31:23,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:31:23,560 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 01:31:23,565 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:31:23,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:31:23 BoogieIcfgContainer [2022-11-22 01:31:23,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:31:23,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:31:23,582 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:31:23,583 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:31:23,583 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:31:23" (3/4) ... [2022-11-22 01:31:23,585 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 01:31:23,621 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:31:23,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:31:23,622 INFO L158 Benchmark]: Toolchain (without parser) took 997.97ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 103.8MB in the beginning and 158.6MB in the end (delta: -54.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:31:23,623 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:31:23,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.97ms. Allocated memory is still 148.9MB. Free memory was 103.8MB in the beginning and 94.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 01:31:23,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.55ms. Allocated memory is still 148.9MB. Free memory was 94.9MB in the beginning and 93.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:31:23,624 INFO L158 Benchmark]: Boogie Preprocessor took 15.39ms. Allocated memory is still 148.9MB. Free memory was 93.3MB in the beginning and 92.4MB in the end (delta: 927.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:31:23,625 INFO L158 Benchmark]: RCFGBuilder took 307.03ms. Allocated memory is still 148.9MB. Free memory was 92.4MB in the beginning and 82.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 01:31:23,628 INFO L158 Benchmark]: TraceAbstraction took 351.42ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 82.4MB in the beginning and 161.1MB in the end (delta: -78.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:31:23,629 INFO L158 Benchmark]: Witness Printer took 39.14ms. Allocated memory is still 192.9MB. Free memory was 161.1MB in the beginning and 158.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:31:23,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.97ms. Allocated memory is still 148.9MB. Free memory was 103.8MB in the beginning and 94.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.55ms. Allocated memory is still 148.9MB. Free memory was 94.9MB in the beginning and 93.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.39ms. Allocated memory is still 148.9MB. Free memory was 93.3MB in the beginning and 92.4MB in the end (delta: 927.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 307.03ms. Allocated memory is still 148.9MB. Free memory was 92.4MB in the beginning and 82.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 351.42ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 82.4MB in the beginning and 161.1MB in the end (delta: -78.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.14ms. Allocated memory is still 192.9MB. Free memory was 161.1MB in the beginning and 158.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int c, x; [L15] c = __VERIFIER_nondet_int() [L16] x = __VERIFIER_nondet_int() [L17] COND TRUE x >= 0 VAL [c=2147483647, x=1] [L18] x + c VAL [c=2147483647, x=1] - UnprovableResult [Line: 18]: 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 CFG has 1 procedures, 7 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-22 01:31:23,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb6a03a5-54d2-415c-8ea6-7a5fefe1dd2c/bin/utaipan-g80aRyZoba/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)