./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrlen.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrlen.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7 --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 7f47a3aedd406a69ab1753c1c4707697df0dbc0cdff682f67fd1c090787641f6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:14:43,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:14:43,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:14:43,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:14:43,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:14:43,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:14:43,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:14:43,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:14:43,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:14:43,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:14:43,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:14:43,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:14:43,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:14:43,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:14:43,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:14:43,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:14:43,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:14:43,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:14:43,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:14:43,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:14:43,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:14:43,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:14:43,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:14:43,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:14:43,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:14:43,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:14:43,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:14:43,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:14:43,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:14:43,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:14:43,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:14:43,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:14:43,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:14:43,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:14:43,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:14:43,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:14:43,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:14:43,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:14:43,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:14:43,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:14:43,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:14:43,237 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-25 19:14:43,268 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:14:43,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:14:43,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:14:43,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:14:43,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:14:43,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:14:43,270 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:14:43,270 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:14:43,271 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:14:43,271 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:14:43,271 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:14:43,271 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:14:43,272 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:14:43,272 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:14:43,272 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:14:43,272 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:14:43,273 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:14:43,273 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:14:43,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:14:43,274 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 19:14:43,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:14:43,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:14:43,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:14:43,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:14:43,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:14:43,275 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 19:14:43,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:14:43,276 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:14:43,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:14:43,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:14:43,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:14:43,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:14:43,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:14:43,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:14:43,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:14:43,278 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:14:43,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:14:43,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:14:43,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:14:43,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:14:43,279 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f47a3aedd406a69ab1753c1c4707697df0dbc0cdff682f67fd1c090787641f6 [2021-11-25 19:14:43,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:14:43,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:14:43,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:14:43,601 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:14:43,602 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:14:43,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/termination-crafted-lit/cstrlen.c [2021-11-25 19:14:43,679 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/data/bfdd84670/d165f4c62c4a45539178994593f2e262/FLAGc7838ecfc [2021-11-25 19:14:44,197 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:14:44,197 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/sv-benchmarks/c/termination-crafted-lit/cstrlen.c [2021-11-25 19:14:44,205 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/data/bfdd84670/d165f4c62c4a45539178994593f2e262/FLAGc7838ecfc [2021-11-25 19:14:44,568 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/data/bfdd84670/d165f4c62c4a45539178994593f2e262 [2021-11-25 19:14:44,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:14:44,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:14:44,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:14:44,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:14:44,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:14:44,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:14:44" (1/1) ... [2021-11-25 19:14:44,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae301c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:14:44, skipping insertion in model container [2021-11-25 19:14:44,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:14:44" (1/1) ... [2021-11-25 19:14:44,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:14:44,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:14:44,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:14:44,857 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:14:44,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:14:44,911 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:14:44,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:14:44 WrapperNode [2021-11-25 19:14:44,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:14:44,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:14:44,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:14:44,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:14:44,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:14:44" (1/1) ... [2021-11-25 19:14:44,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:14:44" (1/1) ... [2021-11-25 19:14:44,955 INFO L137 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 39 [2021-11-25 19:14:44,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:14:44,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:14:44,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:14:44,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:14:44,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:14:44" (1/1) ... [2021-11-25 19:14:44,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:14:44" (1/1) ... [2021-11-25 19:14:44,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:14:44" (1/1) ... [2021-11-25 19:14:44,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:14:44" (1/1) ... [2021-11-25 19:14:44,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:14:44" (1/1) ... [2021-11-25 19:14:44,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:14:44" (1/1) ... [2021-11-25 19:14:44,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:14:44" (1/1) ... [2021-11-25 19:14:44,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:14:44,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:14:44,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:14:44,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:14:44,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:14:44" (1/1) ... [2021-11-25 19:14:44,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:14:45,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:14:45,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:14:45,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:14:45,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:14:45,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:14:45,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:14:45,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:14:45,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:14:45,142 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:14:45,144 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:14:45,268 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:14:45,311 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:14:45,312 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 19:14:45,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:14:45 BoogieIcfgContainer [2021-11-25 19:14:45,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:14:45,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:14:45,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:14:45,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:14:45,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:14:44" (1/3) ... [2021-11-25 19:14:45,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d85c116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:14:45, skipping insertion in model container [2021-11-25 19:14:45,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:14:44" (2/3) ... [2021-11-25 19:14:45,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d85c116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:14:45, skipping insertion in model container [2021-11-25 19:14:45,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:14:45" (3/3) ... [2021-11-25 19:14:45,325 INFO L111 eAbstractionObserver]: Analyzing ICFG cstrlen.c [2021-11-25 19:14:45,332 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:14:45,332 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 19:14:45,426 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:14:45,436 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:14:45,436 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 19:14:45,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 8 states have internal predecessors, (10), 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) [2021-11-25 19:14:45,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 19:14:45,459 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:14:45,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 19:14:45,461 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-11-25 19:14:45,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:14:45,468 INFO L85 PathProgramCache]: Analyzing trace with hash 2273, now seen corresponding path program 1 times [2021-11-25 19:14:45,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:14:45,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294427314] [2021-11-25 19:14:45,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:14:45,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:14:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:14:45,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:14:45,675 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:14:45,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294427314] [2021-11-25 19:14:45,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294427314] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:14:45,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:14:45,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 19:14:45,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045158285] [2021-11-25 19:14:45,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:14:45,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:14:45,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:14:45,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:14:45,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:14:45,753 INFO L87 Difference]: Start difference. First operand has 9 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 8 states have internal predecessors, (10), 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 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-25 19:14:45,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:14:45,810 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-11-25 19:14:45,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:14:45,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-25 19:14:45,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:14:45,825 INFO L225 Difference]: With dead ends: 11 [2021-11-25 19:14:45,826 INFO L226 Difference]: Without dead ends: 4 [2021-11-25 19:14:45,832 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:14:45,855 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:14:45,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 3 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:14:45,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2021-11-25 19:14:45,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2021-11-25 19:14:45,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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) [2021-11-25 19:14:45,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3 transitions. [2021-11-25 19:14:45,897 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 3 transitions. Word has length 2 [2021-11-25 19:14:45,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:14:45,897 INFO L470 AbstractCegarLoop]: Abstraction has 4 states and 3 transitions. [2021-11-25 19:14:45,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-25 19:14:45,898 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2021-11-25 19:14:45,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 19:14:45,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:14:45,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-25 19:14:45,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:14:45,901 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-11-25 19:14:45,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:14:45,907 INFO L85 PathProgramCache]: Analyzing trace with hash 70506, now seen corresponding path program 1 times [2021-11-25 19:14:45,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:14:45,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821044698] [2021-11-25 19:14:45,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:14:45,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:14:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:14:45,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:14:45,999 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:14:45,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821044698] [2021-11-25 19:14:46,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821044698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:14:46,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:14:46,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 19:14:46,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316378922] [2021-11-25 19:14:46,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:14:46,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:14:46,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:14:46,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:14:46,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:14:46,007 INFO L87 Difference]: Start difference. First operand 4 states and 3 transitions. 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) [2021-11-25 19:14:46,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:14:46,022 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2021-11-25 19:14:46,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:14:46,024 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 [2021-11-25 19:14:46,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:14:46,024 INFO L225 Difference]: With dead ends: 4 [2021-11-25 19:14:46,024 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 19:14:46,025 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:14:46,027 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:14:46,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:14:46,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 19:14:46,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 19:14:46,035 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) [2021-11-25 19:14:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 19:14:46,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2021-11-25 19:14:46,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:14:46,037 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 19:14:46,037 INFO L471 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) [2021-11-25 19:14:46,038 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 19:14:46,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 19:14:46,041 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2021-11-25 19:14:46,042 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2021-11-25 19:14:46,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:14:46,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 19:14:46,075 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-11-25 19:14:46,076 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 19:14:46,081 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-11-25 19:14:46,081 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 19:14:46,082 INFO L858 garLoopResultBuilder]: For program point L30-1(lines 30 31) no Hoare annotation was computed. [2021-11-25 19:14:46,082 INFO L854 garLoopResultBuilder]: At program point L30-3(lines 30 31) the Hoare annotation is: (<= |ULTIMATE.start_build_nondet_String_~length~0#1| 2147483647) [2021-11-25 19:14:46,083 INFO L854 garLoopResultBuilder]: At program point L30-4(lines 30 31) the Hoare annotation is: (<= |ULTIMATE.start_build_nondet_String_~length~0#1| 2147483647) [2021-11-25 19:14:46,083 INFO L858 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2021-11-25 19:14:46,083 INFO L854 garLoopResultBuilder]: At program point L18-1(line 18) the Hoare annotation is: (and (<= |ULTIMATE.start_build_nondet_String_~length~0#1| 2147483647) (<= 1 |ULTIMATE.start_build_nondet_String_~length~0#1|)) [2021-11-25 19:14:46,088 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-25 19:14:46,096 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 19:14:46,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 07:14:46 BoogieIcfgContainer [2021-11-25 19:14:46,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 19:14:46,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 19:14:46,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 19:14:46,123 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 19:14:46,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:14:45" (3/4) ... [2021-11-25 19:14:46,127 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 19:14:46,140 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-25 19:14:46,140 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-25 19:14:46,141 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 19:14:46,141 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 19:14:46,206 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 19:14:46,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 19:14:46,210 INFO L158 Benchmark]: Toolchain (without parser) took 1635.59ms. Allocated memory is still 121.6MB. Free memory was 92.4MB in the beginning and 56.6MB in the end (delta: 35.8MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2021-11-25 19:14:46,212 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 44.3MB in the beginning and 44.3MB in the end (delta: 35.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:14:46,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.75ms. Allocated memory is still 121.6MB. Free memory was 92.1MB in the beginning and 98.7MB in the end (delta: -6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 19:14:46,214 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.30ms. Allocated memory is still 121.6MB. Free memory was 98.3MB in the beginning and 96.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:14:46,215 INFO L158 Benchmark]: Boogie Preprocessor took 28.18ms. Allocated memory is still 121.6MB. Free memory was 96.8MB in the beginning and 95.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:14:46,215 INFO L158 Benchmark]: RCFGBuilder took 329.72ms. Allocated memory is still 121.6MB. Free memory was 95.6MB in the beginning and 84.7MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 19:14:46,216 INFO L158 Benchmark]: TraceAbstraction took 804.33ms. Allocated memory is still 121.6MB. Free memory was 84.3MB in the beginning and 59.2MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-25 19:14:46,216 INFO L158 Benchmark]: Witness Printer took 87.45ms. Allocated memory is still 121.6MB. Free memory was 59.2MB in the beginning and 56.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:14:46,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 44.3MB in the beginning and 44.3MB in the end (delta: 35.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.75ms. Allocated memory is still 121.6MB. Free memory was 92.1MB in the beginning and 98.7MB in the end (delta: -6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.30ms. Allocated memory is still 121.6MB. Free memory was 98.3MB in the beginning and 96.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.18ms. Allocated memory is still 121.6MB. Free memory was 96.8MB in the beginning and 95.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 329.72ms. Allocated memory is still 121.6MB. Free memory was 95.6MB in the beginning and 84.7MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 804.33ms. Allocated memory is still 121.6MB. Free memory was 84.3MB in the beginning and 59.2MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 87.45ms. Allocated memory is still 121.6MB. Free memory was 59.2MB in the beginning and 56.6MB in the end (delta: 2.6MB). 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 - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 4 NumberOfFragments, 13 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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: 18]: Loop Invariant Derived loop invariant: length <= 2147483647 && 1 <= length - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: length <= 2147483647 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: length <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-11-25 19:14:46,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4283ee1-0c0b-468f-9f2d-68145820c081/bin/utaipan-eEHZpOm5b7/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