./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/wcsrchr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/wcsrchr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0 --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 aa3550415adcb60cd2e10382a8cad250e37bc74a995d2e6aefcb0c0e067c66dc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 20:27:05,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:27:05,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:27:05,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:27:05,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:27:05,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:27:05,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:27:05,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:27:05,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:27:05,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:27:05,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:27:05,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:27:05,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:27:05,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:27:05,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:27:05,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:27:05,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:27:05,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:27:05,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:27:05,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:27:05,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:27:05,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:27:05,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:27:05,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:27:05,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:27:05,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:27:05,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:27:05,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:27:05,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:27:05,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:27:05,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:27:05,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:27:05,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:27:05,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:27:05,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:27:05,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:27:05,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:27:05,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:27:05,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:27:05,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:27:05,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:27:05,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-16 20:27:05,468 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:27:05,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:27:05,468 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:27:05,469 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:27:05,469 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:27:05,470 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:27:05,470 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:27:05,470 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:27:05,470 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:27:05,471 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:27:05,471 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:27:05,471 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:27:05,471 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:27:05,472 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:27:05,472 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:27:05,472 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:27:05,472 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:27:05,473 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:27:05,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:27:05,474 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 20:27:05,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:27:05,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:27:05,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:27:05,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:27:05,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:27:05,475 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 20:27:05,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:27:05,476 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:27:05,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:27:05,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:27:05,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:27:05,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:27:05,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:27:05,477 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:27:05,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:27:05,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:27:05,478 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:27:05,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:27:05,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:27:05,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:27:05,479 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_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa3550415adcb60cd2e10382a8cad250e37bc74a995d2e6aefcb0c0e067c66dc [2022-11-16 20:27:05,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:27:05,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:27:05,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:27:05,761 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:27:05,761 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:27:05,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/termination-dietlibc/wcsrchr.i [2022-11-16 20:27:05,851 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/data/8abdf0fd1/4b2797cf2a4d4c1195bc03d33805f24f/FLAG59351abcd [2022-11-16 20:27:06,406 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:27:06,407 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/sv-benchmarks/c/termination-dietlibc/wcsrchr.i [2022-11-16 20:27:06,417 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/data/8abdf0fd1/4b2797cf2a4d4c1195bc03d33805f24f/FLAG59351abcd [2022-11-16 20:27:06,702 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/data/8abdf0fd1/4b2797cf2a4d4c1195bc03d33805f24f [2022-11-16 20:27:06,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:27:06,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:27:06,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:27:06,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:27:06,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:27:06,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:27:06" (1/1) ... [2022-11-16 20:27:06,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3addd145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:06, skipping insertion in model container [2022-11-16 20:27:06,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:27:06" (1/1) ... [2022-11-16 20:27:06,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:27:06,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:27:07,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:27:07,157 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:27:07,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:27:07,235 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:27:07,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:07 WrapperNode [2022-11-16 20:27:07,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:27:07,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:27:07,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:27:07,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:27:07,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:07" (1/1) ... [2022-11-16 20:27:07,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:07" (1/1) ... [2022-11-16 20:27:07,284 INFO L138 Inliner]: procedures = 113, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2022-11-16 20:27:07,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:27:07,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:27:07,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:27:07,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:27:07,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:07" (1/1) ... [2022-11-16 20:27:07,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:07" (1/1) ... [2022-11-16 20:27:07,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:07" (1/1) ... [2022-11-16 20:27:07,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:07" (1/1) ... [2022-11-16 20:27:07,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:07" (1/1) ... [2022-11-16 20:27:07,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:07" (1/1) ... [2022-11-16 20:27:07,317 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:07" (1/1) ... [2022-11-16 20:27:07,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:07" (1/1) ... [2022-11-16 20:27:07,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:27:07,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:27:07,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:27:07,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:27:07,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:07" (1/1) ... [2022-11-16 20:27:07,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:27:07,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:27:07,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:27:07,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:27:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 20:27:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 20:27:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 20:27:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 20:27:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:27:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:27:07,490 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:27:07,492 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:27:07,643 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:27:07,689 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:27:07,689 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 20:27:07,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:27:07 BoogieIcfgContainer [2022-11-16 20:27:07,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:27:07,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:27:07,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:27:07,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:27:07,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:27:06" (1/3) ... [2022-11-16 20:27:07,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5ed40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:27:07, skipping insertion in model container [2022-11-16 20:27:07,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:27:07" (2/3) ... [2022-11-16 20:27:07,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5ed40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:27:07, skipping insertion in model container [2022-11-16 20:27:07,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:27:07" (3/3) ... [2022-11-16 20:27:07,722 INFO L112 eAbstractionObserver]: Analyzing ICFG wcsrchr.i [2022-11-16 20:27:07,740 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:27:07,740 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 20:27:07,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:27:07,795 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;@3d617f65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:27:07,795 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 20:27:07,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 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) [2022-11-16 20:27:07,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 20:27:07,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:27:07,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 20:27:07,807 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-16 20:27:07,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:27:07,812 INFO L85 PathProgramCache]: Analyzing trace with hash 66534, now seen corresponding path program 1 times [2022-11-16 20:27:07,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:27:07,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643668725] [2022-11-16 20:27:07,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:27:07,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:27:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:27:08,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:27:08,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:27:08,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643668725] [2022-11-16 20:27:08,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643668725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:27:08,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:27:08,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 20:27:08,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078547878] [2022-11-16 20:27:08,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:27:08,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:27:08,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:27:08,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:27:08,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:27:08,109 INFO L87 Difference]: Start difference. First operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:27:08,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:27:08,166 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-11-16 20:27:08,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:27:08,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-16 20:27:08,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:27:08,176 INFO L225 Difference]: With dead ends: 14 [2022-11-16 20:27:08,176 INFO L226 Difference]: Without dead ends: 5 [2022-11-16 20:27:08,180 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 [2022-11-16 20:27:08,187 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:27:08,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:27:08,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2022-11-16 20:27:08,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2022-11-16 20:27:08,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:27:08,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions. [2022-11-16 20:27:08,220 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 3 [2022-11-16 20:27:08,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:27:08,220 INFO L495 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions. [2022-11-16 20:27:08,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:27:08,222 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2022-11-16 20:27:08,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 20:27:08,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:27:08,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 20:27:08,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:27:08,225 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-16 20:27:08,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:27:08,228 INFO L85 PathProgramCache]: Analyzing trace with hash 2062595, now seen corresponding path program 1 times [2022-11-16 20:27:08,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:27:08,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898470799] [2022-11-16 20:27:08,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:27:08,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:27:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:27:08,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:27:08,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:27:08,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898470799] [2022-11-16 20:27:08,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898470799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:27:08,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:27:08,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:27:08,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123832899] [2022-11-16 20:27:08,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:27:08,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:27:08,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:27:08,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:27:08,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:27:08,323 INFO L87 Difference]: Start difference. First operand 5 states and 4 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:27:08,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:27:08,327 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2022-11-16 20:27:08,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:27:08,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-16 20:27:08,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:27:08,329 INFO L225 Difference]: With dead ends: 5 [2022-11-16 20:27:08,329 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 20:27:08,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:27:08,330 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:27:08,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:27:08,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 20:27:08,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 20:27:08,332 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) [2022-11-16 20:27:08,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 20:27:08,333 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-11-16 20:27:08,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:27:08,333 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 20:27:08,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:27:08,334 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 20:27:08,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 20:27:08,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-16 20:27:08,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-16 20:27:08,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 20:27:08,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 20:27:08,354 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 517) no Hoare annotation was computed. [2022-11-16 20:27:08,355 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 20:27:08,355 INFO L899 garLoopResultBuilder]: For program point L508-1(lines 508 510) no Hoare annotation was computed. [2022-11-16 20:27:08,356 INFO L895 garLoopResultBuilder]: At program point L508-4(lines 508 510) the Hoare annotation is: (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) [2022-11-16 20:27:08,357 INFO L895 garLoopResultBuilder]: At program point L508-5(lines 508 510) the Hoare annotation is: (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) [2022-11-16 20:27:08,357 INFO L895 garLoopResultBuilder]: At program point L519(lines 513 520) the Hoare annotation is: (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) [2022-11-16 20:27:08,358 INFO L899 garLoopResultBuilder]: For program point L517(line 517) no Hoare annotation was computed. [2022-11-16 20:27:08,358 INFO L899 garLoopResultBuilder]: For program point L517-1(line 517) no Hoare annotation was computed. [2022-11-16 20:27:08,358 INFO L899 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2022-11-16 20:27:08,358 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 517) no Hoare annotation was computed. [2022-11-16 20:27:08,358 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 20:27:08,363 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 20:27:08,365 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 20:27:08,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:27:08 BoogieIcfgContainer [2022-11-16 20:27:08,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 20:27:08,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 20:27:08,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 20:27:08,388 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 20:27:08,389 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:27:07" (3/4) ... [2022-11-16 20:27:08,394 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 20:27:08,404 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-16 20:27:08,404 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 20:27:08,404 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 20:27:08,405 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 20:27:08,469 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 20:27:08,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 20:27:08,470 INFO L158 Benchmark]: Toolchain (without parser) took 1763.09ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 93.1MB in the end (delta: -11.5MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2022-11-16 20:27:08,470 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:27:08,471 INFO L158 Benchmark]: CACSL2BoogieTranslator took 525.60ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 87.0MB in the end (delta: -5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 20:27:08,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.03ms. Allocated memory is still 117.4MB. Free memory was 87.0MB in the beginning and 84.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:27:08,471 INFO L158 Benchmark]: Boogie Preprocessor took 34.26ms. Allocated memory is still 117.4MB. Free memory was 84.9MB in the beginning and 83.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:27:08,472 INFO L158 Benchmark]: RCFGBuilder took 391.88ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 71.7MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 20:27:08,472 INFO L158 Benchmark]: TraceAbstraction took 670.44ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 43.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 20:27:08,473 INFO L158 Benchmark]: Witness Printer took 81.57ms. Allocated memory is still 117.4MB. Free memory was 43.5MB in the beginning and 93.1MB in the end (delta: -49.5MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-11-16 20:27:08,475 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 525.60ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 87.0MB in the end (delta: -5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.03ms. Allocated memory is still 117.4MB. Free memory was 87.0MB in the beginning and 84.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.26ms. Allocated memory is still 117.4MB. Free memory was 84.9MB in the beginning and 83.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 391.88ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 71.7MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 670.44ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 43.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 81.57ms. Allocated memory is still 117.4MB. Free memory was 43.5MB in the beginning and 93.1MB in the end (delta: -49.5MB). Peak memory consumption was 6.9MB. 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 - PositiveResult [Line: 517]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 517]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 9 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 2 specifications checked. All of them hold - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: in_len <= 2147483647 - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: in_len <= 2147483647 - InvariantResult [Line: 513]: Loop Invariant Derived loop invariant: in_len <= 2147483647 RESULT: Ultimate proved your program to be correct! [2022-11-16 20:27:08,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ae48e1-7945-4f7a-91c8-e05296d75a6d/bin/utaipan-Xvt2sAort0/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 Result: TRUE