./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c -s /tmp/vcloud-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/bin/utaipan --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 f39f60c3148e6a8957b92a35d12d506fd8229368 ...................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:51:10,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:51:10,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:51:10,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:51:10,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:51:10,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:51:10,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:51:10,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:51:10,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:51:10,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:51:10,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:51:10,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:51:10,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:51:10,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:51:10,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:51:10,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:51:10,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:51:10,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:51:10,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:51:10,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:51:10,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:51:10,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:51:10,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:51:10,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:51:10,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:51:10,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:51:10,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:51:10,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:51:10,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:51:10,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:51:10,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:51:10,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:51:10,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:51:10,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:51:10,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:51:10,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:51:10,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:51:10,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:51:10,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:51:10,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:51:10,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:51:10,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-11-26 02:51:10,472 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:51:10,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:51:10,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:51:10,473 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:51:10,473 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:51:10,474 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:51:10,474 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:51:10,474 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:51:10,474 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:51:10,475 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:51:10,475 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:51:10,475 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:51:10,475 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:51:10,476 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:51:10,476 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:51:10,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:51:10,477 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:51:10,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:51:10,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:51:10,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:51:10,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:51:10,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:51:10,478 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:51:10,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:51:10,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:51:10,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:51:10,479 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:51:10,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:51:10,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:51:10,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:51:10,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:51:10,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:51:10,481 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:51:10,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:51:10,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:51:10,481 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:51:10,482 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/bin/utaipan 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 -> f39f60c3148e6a8957b92a35d12d506fd8229368 [2019-11-26 02:51:10,613 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:51:10,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:51:10,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:51:10,628 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:51:10,628 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:51:10,629 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c [2019-11-26 02:51:10,678 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/bin/utaipan/data/157ac5521/e465b939c111434e945c47767dd2bed7/FLAGe07fc4a26 [2019-11-26 02:51:11,062 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:51:11,062 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/sv-benchmarks/c/termination-crafted-lit/cstrcspn.c [2019-11-26 02:51:11,067 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/bin/utaipan/data/157ac5521/e465b939c111434e945c47767dd2bed7/FLAGe07fc4a26 [2019-11-26 02:51:11,077 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/bin/utaipan/data/157ac5521/e465b939c111434e945c47767dd2bed7 [2019-11-26 02:51:11,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:51:11,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:51:11,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:51:11,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:51:11,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:51:11,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:51:11" (1/1) ... [2019-11-26 02:51:11,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7118f9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:11, skipping insertion in model container [2019-11-26 02:51:11,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:51:11" (1/1) ... [2019-11-26 02:51:11,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:51:11,114 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:51:11,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:51:11,399 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:51:11,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:51:11,442 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:51:11,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:11 WrapperNode [2019-11-26 02:51:11,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:51:11,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:51:11,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:51:11,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:51:11,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:11" (1/1) ... [2019-11-26 02:51:11,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:11" (1/1) ... [2019-11-26 02:51:11,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:51:11,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:51:11,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:51:11,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:51:11,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:11" (1/1) ... [2019-11-26 02:51:11,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:11" (1/1) ... [2019-11-26 02:51:11,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:11" (1/1) ... [2019-11-26 02:51:11,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:11" (1/1) ... [2019-11-26 02:51:11,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:11" (1/1) ... [2019-11-26 02:51:11,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:11" (1/1) ... [2019-11-26 02:51:11,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:11" (1/1) ... [2019-11-26 02:51:11,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:51:11,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:51:11,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:51:11,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:51:11,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:51:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:51:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-26 02:51:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:51:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:51:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:51:12,037 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:51:12,037 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-26 02:51:12,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:51:12 BoogieIcfgContainer [2019-11-26 02:51:12,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:51:12,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:51:12,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:51:12,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:51:12,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:51:11" (1/3) ... [2019-11-26 02:51:12,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af7a83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:51:12, skipping insertion in model container [2019-11-26 02:51:12,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:11" (2/3) ... [2019-11-26 02:51:12,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af7a83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:51:12, skipping insertion in model container [2019-11-26 02:51:12,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:51:12" (3/3) ... [2019-11-26 02:51:12,045 INFO L109 eAbstractionObserver]: Analyzing ICFG cstrcspn.c [2019-11-26 02:51:12,054 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:51:12,059 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-26 02:51:12,069 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-26 02:51:12,091 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:51:12,091 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:51:12,091 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:51:12,092 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:51:12,092 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:51:12,092 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:51:12,092 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:51:12,092 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:51:12,121 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-26 02:51:12,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-11-26 02:51:12,126 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:12,127 INFO L410 BasicCegarLoop]: trace histogram [1, 1] [2019-11-26 02:51:12,127 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:51:12,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:12,131 INFO L82 PathProgramCache]: Analyzing trace with hash 3791, now seen corresponding path program 1 times [2019-11-26 02:51:12,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:51:12,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54064776] [2019-11-26 02:51:12,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:51:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:12,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:12,278 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54064776] [2019-11-26 02:51:12,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:12,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-26 02:51:12,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777332394] [2019-11-26 02:51:12,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:51:12,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:51:12,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:51:12,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:12,296 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2019-11-26 02:51:12,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:12,368 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2019-11-26 02:51:12,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:51:12,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-11-26 02:51:12,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:12,380 INFO L225 Difference]: With dead ends: 35 [2019-11-26 02:51:12,380 INFO L226 Difference]: Without dead ends: 13 [2019-11-26 02:51:12,386 INFO L630 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 [2019-11-26 02:51:12,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-26 02:51:12,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-26 02:51:12,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-26 02:51:12,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2019-11-26 02:51:12,415 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 2 [2019-11-26 02:51:12,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:12,416 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2019-11-26 02:51:12,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:51:12,416 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2019-11-26 02:51:12,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-26 02:51:12,416 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:12,416 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-26 02:51:12,417 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:51:12,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:12,417 INFO L82 PathProgramCache]: Analyzing trace with hash 117563, now seen corresponding path program 1 times [2019-11-26 02:51:12,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:51:12,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499360487] [2019-11-26 02:51:12,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:51:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:12,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:12,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499360487] [2019-11-26 02:51:12,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:12,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-26 02:51:12,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606969365] [2019-11-26 02:51:12,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:51:12,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:51:12,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:51:12,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:12,447 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand 3 states. [2019-11-26 02:51:12,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:12,468 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-11-26 02:51:12,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:51:12,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-26 02:51:12,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:12,470 INFO L225 Difference]: With dead ends: 13 [2019-11-26 02:51:12,470 INFO L226 Difference]: Without dead ends: 11 [2019-11-26 02:51:12,471 INFO L630 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 [2019-11-26 02:51:12,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-26 02:51:12,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-26 02:51:12,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-26 02:51:12,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2019-11-26 02:51:12,473 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 3 [2019-11-26 02:51:12,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:12,474 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2019-11-26 02:51:12,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:51:12,474 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2019-11-26 02:51:12,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 02:51:12,474 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:12,474 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-26 02:51:12,475 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:51:12,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:12,475 INFO L82 PathProgramCache]: Analyzing trace with hash 112979453, now seen corresponding path program 1 times [2019-11-26 02:51:12,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:51:12,476 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453305839] [2019-11-26 02:51:12,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:51:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:12,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:12,507 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453305839] [2019-11-26 02:51:12,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:12,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-26 02:51:12,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93364420] [2019-11-26 02:51:12,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:51:12,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:51:12,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:51:12,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:51:12,509 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 3 states. [2019-11-26 02:51:12,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:12,528 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-11-26 02:51:12,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:51:12,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-26 02:51:12,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:12,529 INFO L225 Difference]: With dead ends: 11 [2019-11-26 02:51:12,529 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:51:12,530 INFO L630 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 [2019-11-26 02:51:12,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:51:12,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:51:12,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:51:12,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:51:12,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-26 02:51:12,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:12,531 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:51:12,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:51:12,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:51:12,531 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:51:12,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:51:12,612 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-11-26 02:51:12,612 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-11-26 02:51:12,612 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-11-26 02:51:12,612 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:51:12,612 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-11-26 02:51:12,613 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-11-26 02:51:12,613 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:51:12,613 INFO L444 ceAbstractionStarter]: For program point L33-3(lines 33 34) no Hoare annotation was computed. [2019-11-26 02:51:12,613 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-11-26 02:51:12,613 INFO L440 ceAbstractionStarter]: At program point L33-5(lines 33 34) the Hoare annotation is: (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647) [2019-11-26 02:51:12,613 INFO L444 ceAbstractionStarter]: For program point L33-6(lines 33 34) no Hoare annotation was computed. [2019-11-26 02:51:12,613 INFO L444 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-11-26 02:51:12,613 INFO L444 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2019-11-26 02:51:12,614 INFO L440 ceAbstractionStarter]: At program point L38(lines 25 39) the Hoare annotation is: (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647) [2019-11-26 02:51:12,614 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-11-26 02:51:12,614 INFO L444 ceAbstractionStarter]: For program point L30-1(lines 30 37) no Hoare annotation was computed. [2019-11-26 02:51:12,614 INFO L440 ceAbstractionStarter]: At program point L30-4(lines 30 37) the Hoare annotation is: (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647) [2019-11-26 02:51:12,614 INFO L444 ceAbstractionStarter]: For program point L30-5(lines 30 37) no Hoare annotation was computed. [2019-11-26 02:51:12,614 INFO L444 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2019-11-26 02:51:12,614 INFO L440 ceAbstractionStarter]: At program point L18-1(line 18) the Hoare annotation is: (and (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647) (<= 1 ULTIMATE.start_build_nondet_String_~length~0)) [2019-11-26 02:51:12,615 INFO L444 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2019-11-26 02:51:12,615 INFO L440 ceAbstractionStarter]: At program point L18-3(line 18) the Hoare annotation is: (and (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647) (<= 1 ULTIMATE.start_build_nondet_String_~length~0)) [2019-11-26 02:51:12,615 INFO L444 ceAbstractionStarter]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2019-11-26 02:51:12,615 INFO L444 ceAbstractionStarter]: For program point L14-5(lines 14 16) no Hoare annotation was computed. [2019-11-26 02:51:12,615 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-11-26 02:51:12,615 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2019-11-26 02:51:12,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:51:12 BoogieIcfgContainer [2019-11-26 02:51:12,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:51:12,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:51:12,628 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:51:12,628 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:51:12,629 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:51:12" (3/4) ... [2019-11-26 02:51:12,631 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:51:12,640 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:51:12,640 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-26 02:51:12,641 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:51:12,704 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_02382ce6-2dc1-43c2-aba1-80cea46c7fe3/bin/utaipan/witness.graphml [2019-11-26 02:51:12,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:51:12,706 INFO L168 Benchmark]: Toolchain (without parser) took 1625.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -125.5 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:12,707 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:51:12,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -202.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:12,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:51:12,708 INFO L168 Benchmark]: Boogie Preprocessor took 61.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:12,708 INFO L168 Benchmark]: RCFGBuilder took 477.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:12,711 INFO L168 Benchmark]: TraceAbstraction took 588.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:12,713 INFO L168 Benchmark]: Witness Printer took 76.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:51:12,715 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 362.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -202.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 477.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 588.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 76.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: 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 - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 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: 25]: Loop Invariant Derived loop invariant: length <= 2147483647 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: length <= 2147483647 && 1 <= length - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: length <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 8 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 32 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 23 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...