./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.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_fc468ba4-fc1f-4cf4-8742-abac388498ca/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fc468ba4-fc1f-4cf4-8742-abac388498ca/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fc468ba4-fc1f-4cf4-8742-abac388498ca/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fc468ba4-fc1f-4cf4-8742-abac388498ca/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fc468ba4-fc1f-4cf4-8742-abac388498ca/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fc468ba4-fc1f-4cf4-8742-abac388498ca/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 cf525d8633b3b7346e37d1ca80a1eb5813bdc12a ....................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:18:39,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:18:39,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:18:39,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:18:39,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:18:39,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:18:39,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:18:39,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:18:39,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:18:39,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:18:39,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:18:39,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:18:39,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:18:39,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:18:39,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:18:39,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:18:39,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:18:39,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:18:39,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:18:39,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:18:39,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:18:39,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:18:39,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:18:39,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:18:39,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:18:39,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:18:39,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:18:39,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:18:39,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:18:39,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:18:39,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:18:39,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:18:39,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:18:39,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:18:39,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:18:39,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:18:39,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:18:39,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:18:39,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:18:39,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:18:39,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:18:39,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fc468ba4-fc1f-4cf4-8742-abac388498ca/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-11-26 02:18:40,001 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:18:40,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:18:40,002 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:18:40,002 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:18:40,002 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:18:40,002 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:18:40,002 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:18:40,003 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:18:40,003 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:18:40,003 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:18:40,003 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:18:40,003 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:18:40,004 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:18:40,004 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:18:40,004 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:18:40,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:18:40,004 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:18:40,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:18:40,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:18:40,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:18:40,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:18:40,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:18:40,005 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:18:40,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:18:40,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:18:40,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:18:40,006 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:18:40,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:18:40,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:18:40,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:18:40,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:18:40,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:18:40,007 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:18:40,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:18:40,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:18:40,008 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:18:40,008 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_fc468ba4-fc1f-4cf4-8742-abac388498ca/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 -> cf525d8633b3b7346e37d1ca80a1eb5813bdc12a [2019-11-26 02:18:40,155 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:18:40,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:18:40,168 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:18:40,169 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:18:40,169 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:18:40,170 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fc468ba4-fc1f-4cf4-8742-abac388498ca/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2019-11-26 02:18:40,217 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc468ba4-fc1f-4cf4-8742-abac388498ca/bin/utaipan/data/68a89f202/4c21a7a054634cd5bf5d14472cc70ade/FLAG1904ac7e3 [2019-11-26 02:18:40,580 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:18:40,581 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fc468ba4-fc1f-4cf4-8742-abac388498ca/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2019-11-26 02:18:40,588 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc468ba4-fc1f-4cf4-8742-abac388498ca/bin/utaipan/data/68a89f202/4c21a7a054634cd5bf5d14472cc70ade/FLAG1904ac7e3 [2019-11-26 02:18:40,604 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fc468ba4-fc1f-4cf4-8742-abac388498ca/bin/utaipan/data/68a89f202/4c21a7a054634cd5bf5d14472cc70ade [2019-11-26 02:18:40,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:18:40,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:18:40,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:18:40,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:18:40,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:18:40,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:18:40" (1/1) ... [2019-11-26 02:18:40,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d99efa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:40, skipping insertion in model container [2019-11-26 02:18:40,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:18:40" (1/1) ... [2019-11-26 02:18:40,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:18:40,638 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:18:40,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:18:40,888 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:18:40,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:18:40,914 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:18:40,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:40 WrapperNode [2019-11-26 02:18:40,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:18:40,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:18:40,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:18:40,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:18:40,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:40" (1/1) ... [2019-11-26 02:18:40,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:40" (1/1) ... [2019-11-26 02:18:40,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:18:40,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:18:40,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:18:40,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:18:40,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:40" (1/1) ... [2019-11-26 02:18:40,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:40" (1/1) ... [2019-11-26 02:18:40,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:40" (1/1) ... [2019-11-26 02:18:40,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:40" (1/1) ... [2019-11-26 02:18:40,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:40" (1/1) ... [2019-11-26 02:18:40,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:40" (1/1) ... [2019-11-26 02:18:40,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:40" (1/1) ... [2019-11-26 02:18:40,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:18:40,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:18:40,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:18:40,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:18:40,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc468ba4-fc1f-4cf4-8742-abac388498ca/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 02:18:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:18:41,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:18:41,240 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:18:41,241 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-26 02:18:41,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:18:41 BoogieIcfgContainer [2019-11-26 02:18:41,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:18:41,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:18:41,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:18:41,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:18:41,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:18:40" (1/3) ... [2019-11-26 02:18:41,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc54a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:18:41, skipping insertion in model container [2019-11-26 02:18:41,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:40" (2/3) ... [2019-11-26 02:18:41,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc54a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:18:41, skipping insertion in model container [2019-11-26 02:18:41,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:18:41" (3/3) ... [2019-11-26 02:18:41,248 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2019-11-26 02:18:41,262 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:18:41,268 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-26 02:18:41,284 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-26 02:18:41,305 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:18:41,306 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:18:41,306 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:18:41,306 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:18:41,306 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:18:41,306 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:18:41,306 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:18:41,306 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:18:41,319 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-11-26 02:18:41,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:18:41,323 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:18:41,324 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 02:18:41,324 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_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 02:18:41,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:18:41,329 INFO L82 PathProgramCache]: Analyzing trace with hash 963723, now seen corresponding path program 1 times [2019-11-26 02:18:41,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:18:41,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288771233] [2019-11-26 02:18:41,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:18:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:18:41,460 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 02:18:41,461 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288771233] [2019-11-26 02:18:41,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:18:41,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-26 02:18:41,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450788039] [2019-11-26 02:18:41,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:18:41,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:18:41,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:18:41,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:18:41,482 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-11-26 02:18:41,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:18:41,545 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2019-11-26 02:18:41,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:18:41,547 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-26 02:18:41,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:18:41,555 INFO L225 Difference]: With dead ends: 30 [2019-11-26 02:18:41,555 INFO L226 Difference]: Without dead ends: 27 [2019-11-26 02:18:41,557 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 02:18:41,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-26 02:18:41,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2019-11-26 02:18:41,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-26 02:18:41,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-11-26 02:18:41,587 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 4 [2019-11-26 02:18:41,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:18:41,587 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-26 02:18:41,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:18:41,588 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2019-11-26 02:18:41,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:18:41,588 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:18:41,588 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 02:18:41,588 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_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 02:18:41,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:18:41,589 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-11-26 02:18:41,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:18:41,589 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716250331] [2019-11-26 02:18:41,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:18:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:18:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:18:41,626 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:18:41,626 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:18:41,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:18:41 BoogieIcfgContainer [2019-11-26 02:18:41,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:18:41,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:18:41,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:18:41,642 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:18:41,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:18:41" (3/4) ... [2019-11-26 02:18:41,644 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:18:41,679 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fc468ba4-fc1f-4cf4-8742-abac388498ca/bin/utaipan/witness.graphml [2019-11-26 02:18:41,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:18:41,681 INFO L168 Benchmark]: Toolchain (without parser) took 1072.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:18:41,681 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 965.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:18:41,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:18:41,682 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.11 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 02:18:41,683 INFO L168 Benchmark]: Boogie Preprocessor took 21.60 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 02:18:41,683 INFO L168 Benchmark]: RCFGBuilder took 278.28 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: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:18:41,684 INFO L168 Benchmark]: TraceAbstraction took 398.59 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:18:41,684 INFO L168 Benchmark]: Witness Printer took 37.52 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 02:18:41,687 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 965.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.11 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 21.60 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. * RCFGBuilder took 278.28 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: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 398.59 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 37.52 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 21]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y, n, b; [L15] n = __VERIFIER_nondet_int() [L16] b = __VERIFIER_nondet_int() [L17] x = __VERIFIER_nondet_int() [L18] y = __VERIFIER_nondet_int() [L19] COND TRUE x >= 0 && 0 <= y && y <= n [L20] COND TRUE b == 0 [L21] y + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 6 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 13 SDslu, 8 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=1, 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, 1 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 incorrect! Received shutdown request...