./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/signextension_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/signextension_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 93417fec817c517a78d8232b303da21d88847972 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 15:15:57,137 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:15:57,138 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:15:57,147 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:15:57,147 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:15:57,148 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:15:57,149 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:15:57,150 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:15:57,151 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:15:57,152 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:15:57,153 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:15:57,153 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:15:57,153 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:15:57,154 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:15:57,155 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:15:57,156 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:15:57,156 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:15:57,157 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:15:57,159 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:15:57,160 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:15:57,161 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:15:57,162 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:15:57,163 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:15:57,164 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:15:57,164 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:15:57,164 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:15:57,165 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:15:57,166 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:15:57,166 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:15:57,167 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:15:57,167 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:15:57,168 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:15:57,168 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:15:57,168 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:15:57,169 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:15:57,169 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:15:57,170 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 15:15:57,180 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:15:57,180 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:15:57,181 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 15:15:57,181 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 15:15:57,181 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 15:15:57,182 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 15:15:57,182 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 15:15:57,182 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 15:15:57,182 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 15:15:57,182 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 15:15:57,182 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 15:15:57,182 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 15:15:57,183 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 15:15:57,183 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:15:57,183 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 15:15:57,183 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 15:15:57,184 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 15:15:57,184 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:15:57,184 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 15:15:57,184 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 15:15:57,184 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 15:15:57,184 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 15:15:57,185 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 15:15:57,185 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:15:57,185 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 15:15:57,185 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:15:57,185 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:15:57,185 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 15:15:57,186 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 15:15:57,186 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:15:57,186 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:15:57,186 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 15:15:57,186 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 15:15:57,186 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 15:15:57,186 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 15:15:57,187 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 15:15:57,187 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 15:15:57,187 INFO L133 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/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/bin-2019/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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93417fec817c517a78d8232b303da21d88847972 [2018-11-23 15:15:57,211 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:15:57,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:15:57,223 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:15:57,224 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:15:57,224 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:15:57,225 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/bin-2019/utaipan/../../sv-benchmarks/c/bitvector-regression/signextension_false-unreach-call_true-termination.c [2018-11-23 15:15:57,272 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/bin-2019/utaipan/data/896413d47/0345321865574a4fb871f6ea46fb0e5f/FLAGd23963182 [2018-11-23 15:15:57,602 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:15:57,602 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/sv-benchmarks/c/bitvector-regression/signextension_false-unreach-call_true-termination.c [2018-11-23 15:15:57,606 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/bin-2019/utaipan/data/896413d47/0345321865574a4fb871f6ea46fb0e5f/FLAGd23963182 [2018-11-23 15:15:57,615 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/bin-2019/utaipan/data/896413d47/0345321865574a4fb871f6ea46fb0e5f [2018-11-23 15:15:57,617 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:15:57,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 15:15:57,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:15:57,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:15:57,621 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:15:57,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:15:57" (1/1) ... [2018-11-23 15:15:57,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4737948c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:57, skipping insertion in model container [2018-11-23 15:15:57,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:15:57" (1/1) ... [2018-11-23 15:15:57,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:15:57,640 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:15:57,742 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:15:57,745 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:15:57,754 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:15:57,762 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:15:57,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:57 WrapperNode [2018-11-23 15:15:57,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:15:57,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 15:15:57,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 15:15:57,763 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 15:15:57,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:57" (1/1) ... [2018-11-23 15:15:57,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:57" (1/1) ... [2018-11-23 15:15:57,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 15:15:57,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:15:57,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:15:57,775 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:15:57,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:57" (1/1) ... [2018-11-23 15:15:57,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:57" (1/1) ... [2018-11-23 15:15:57,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:57" (1/1) ... [2018-11-23 15:15:57,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:57" (1/1) ... [2018-11-23 15:15:57,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:57" (1/1) ... [2018-11-23 15:15:57,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:57" (1/1) ... [2018-11-23 15:15:57,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:57" (1/1) ... [2018-11-23 15:15:57,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:15:57,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:15:57,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:15:57,786 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:15:57,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/bin-2019/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 [2018-11-23 15:15:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 15:15:57,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 15:15:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:15:57,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:15:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 15:15:57,856 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 15:15:57,945 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:15:57,945 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 15:15:57,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:15:57 BoogieIcfgContainer [2018-11-23 15:15:57,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:15:57,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 15:15:57,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 15:15:57,948 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 15:15:57,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:15:57" (1/3) ... [2018-11-23 15:15:57,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f1a1bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:15:57, skipping insertion in model container [2018-11-23 15:15:57,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:15:57" (2/3) ... [2018-11-23 15:15:57,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f1a1bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:15:57, skipping insertion in model container [2018-11-23 15:15:57,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:15:57" (3/3) ... [2018-11-23 15:15:57,951 INFO L112 eAbstractionObserver]: Analyzing ICFG signextension_false-unreach-call_true-termination.c [2018-11-23 15:15:57,957 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 15:15:57,961 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 15:15:57,972 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 15:15:57,998 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 15:15:57,998 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 15:15:57,998 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 15:15:57,998 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:15:57,998 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:15:57,998 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 15:15:57,998 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:15:57,999 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 15:15:58,009 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-23 15:15:58,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 15:15:58,013 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:15:58,013 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:15:58,014 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:15:58,017 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:15:58,018 INFO L82 PathProgramCache]: Analyzing trace with hash 408836530, now seen corresponding path program 1 times [2018-11-23 15:15:58,019 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:15:58,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:15:58,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:15:58,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:15:58,048 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:15:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:15:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:15:58,099 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #14#return; [?] CALL call #t~ret0 := main(); [?] ~allbits~0 := -1;~signedallbits~0 := (if ~allbits~0 % 65536 % 65536 <= 32767 then ~allbits~0 % 65536 % 65536 else ~allbits~0 % 65536 % 65536 - 65536);~unsignedtosigned~0 := ~allbits~0 % 65536;~unsignedtounsigned~0 := ~allbits~0 % 65536;~signedtosigned~0 := ~signedallbits~0;~signedtounsigned~0 := ~signedallbits~0; VAL [main_~allbits~0=(- 1), main_~signedallbits~0=(- 1), main_~signedtosigned~0=(- 1), main_~signedtounsigned~0=(- 1), main_~unsignedtosigned~0=65535, main_~unsignedtounsigned~0=65535] [?] assume ((65535 == ~unsignedtosigned~0 && 65535 == ~unsignedtounsigned~0 % 4294967296) && -1 == ~signedtosigned~0) && 4294967295 == ~signedtounsigned~0 % 4294967296; VAL [main_~allbits~0=(- 1), main_~signedallbits~0=(- 1), main_~signedtosigned~0=(- 1), main_~signedtounsigned~0=(- 1), main_~unsignedtosigned~0=65535, main_~unsignedtounsigned~0=65535] [?] assume !false; VAL [main_~allbits~0=(- 1), main_~signedallbits~0=(- 1), main_~signedtosigned~0=(- 1), main_~signedtounsigned~0=(- 1), main_~unsignedtosigned~0=65535, main_~unsignedtounsigned~0=65535] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L5] ~allbits~0 := -1; [L6] ~signedallbits~0 := (if ~allbits~0 % 65536 % 65536 <= 32767 then ~allbits~0 % 65536 % 65536 else ~allbits~0 % 65536 % 65536 - 65536); [L7] ~unsignedtosigned~0 := ~allbits~0 % 65536; [L8] ~unsignedtounsigned~0 := ~allbits~0 % 65536; [L9] ~signedtosigned~0 := ~signedallbits~0; [L10] ~signedtounsigned~0 := ~signedallbits~0; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L19-L22] assume ((65535 == ~unsignedtosigned~0 && 65535 == ~unsignedtounsigned~0 % 4294967296) && -1 == ~signedtosigned~0) && 4294967295 == ~signedtounsigned~0 % 4294967296; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L25] assert false; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L5] ~allbits~0 := -1; [L6] ~signedallbits~0 := (if ~allbits~0 % 65536 % 65536 <= 32767 then ~allbits~0 % 65536 % 65536 else ~allbits~0 % 65536 % 65536 - 65536); [L7] ~unsignedtosigned~0 := ~allbits~0 % 65536; [L8] ~unsignedtounsigned~0 := ~allbits~0 % 65536; [L9] ~signedtosigned~0 := ~signedallbits~0; [L10] ~signedtounsigned~0 := ~signedallbits~0; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L19-L22] assume ((65535 == ~unsignedtosigned~0 && 65535 == ~unsignedtounsigned~0 % 4294967296) && -1 == ~signedtosigned~0) && 4294967295 == ~signedtounsigned~0 % 4294967296; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L25] assert false; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L5] ~allbits~0 := -1; [L6] ~signedallbits~0 := (if ~allbits~0 % 65536 % 65536 <= 32767 then ~allbits~0 % 65536 % 65536 else ~allbits~0 % 65536 % 65536 - 65536); [L7] ~unsignedtosigned~0 := ~allbits~0 % 65536; [L8] ~unsignedtounsigned~0 := ~allbits~0 % 65536; [L9] ~signedtosigned~0 := ~signedallbits~0; [L10] ~signedtounsigned~0 := ~signedallbits~0; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L19-L20] COND TRUE ((65535 == ~unsignedtosigned~0 && 65535 == ~unsignedtounsigned~0 % 4294967296) && -1 == ~signedtosigned~0) && 4294967295 == ~signedtounsigned~0 % 4294967296 VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L25] assert false; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L5] ~allbits~0 := -1; [L6] ~signedallbits~0 := (if ~allbits~0 % 65536 % 65536 <= 32767 then ~allbits~0 % 65536 % 65536 else ~allbits~0 % 65536 % 65536 - 65536); [L7] ~unsignedtosigned~0 := ~allbits~0 % 65536; [L8] ~unsignedtounsigned~0 := ~allbits~0 % 65536; [L9] ~signedtosigned~0 := ~signedallbits~0; [L10] ~signedtounsigned~0 := ~signedallbits~0; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L19-L20] COND TRUE ((65535 == ~unsignedtosigned~0 && 65535 == ~unsignedtounsigned~0 % 4294967296) && -1 == ~signedtosigned~0) && 4294967295 == ~signedtounsigned~0 % 4294967296 VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L25] assert false; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L5] ~allbits~0 := -1; [L6] ~signedallbits~0 := (if ~allbits~0 % 65536 % 65536 <= 32767 then ~allbits~0 % 65536 % 65536 else ~allbits~0 % 65536 % 65536 - 65536); [L7] ~unsignedtosigned~0 := ~allbits~0 % 65536; [L8] ~unsignedtounsigned~0 := ~allbits~0 % 65536; [L9] ~signedtosigned~0 := ~signedallbits~0; [L10] ~signedtounsigned~0 := ~signedallbits~0; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L19-L20] COND TRUE ((65535 == ~unsignedtosigned~0 && 65535 == ~unsignedtounsigned~0 % 4294967296) && -1 == ~signedtosigned~0) && 4294967295 == ~signedtounsigned~0 % 4294967296 VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L25] assert false; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L5] ~allbits~0 := -1; [L6] ~signedallbits~0 := (if ~allbits~0 % 65536 % 65536 <= 32767 then ~allbits~0 % 65536 % 65536 else ~allbits~0 % 65536 % 65536 - 65536); [L7] ~unsignedtosigned~0 := ~allbits~0 % 65536; [L8] ~unsignedtounsigned~0 := ~allbits~0 % 65536; [L9] ~signedtosigned~0 := ~signedallbits~0; [L10] ~signedtounsigned~0 := ~signedallbits~0; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L19-L20] COND TRUE ((65535 == ~unsignedtosigned~0 && 65535 == ~unsignedtounsigned~0 % 4294967296) && -1 == ~signedtosigned~0) && 4294967295 == ~signedtounsigned~0 % 4294967296 VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L25] assert false; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L5] unsigned short int allbits = -1; [L6] short int signedallbits = allbits; [L7] int unsignedtosigned = allbits; [L8] unsigned int unsignedtounsigned = allbits; [L9] int signedtosigned = signedallbits; [L10] unsigned int signedtounsigned = signedallbits; VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] [L19-L20] COND TRUE unsignedtosigned == 65535 && unsignedtounsigned == 65535 && signedtosigned == -1 && signedtounsigned == 4294967295 VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] [L25] __VERIFIER_error() VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] ----- [2018-11-23 15:15:58,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:15:58 BoogieIcfgContainer [2018-11-23 15:15:58,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 15:15:58,124 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 15:15:58,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 15:15:58,124 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 15:15:58,125 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:15:57" (3/4) ... [2018-11-23 15:15:58,126 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #14#return; [?] CALL call #t~ret0 := main(); [?] ~allbits~0 := -1;~signedallbits~0 := (if ~allbits~0 % 65536 % 65536 <= 32767 then ~allbits~0 % 65536 % 65536 else ~allbits~0 % 65536 % 65536 - 65536);~unsignedtosigned~0 := ~allbits~0 % 65536;~unsignedtounsigned~0 := ~allbits~0 % 65536;~signedtosigned~0 := ~signedallbits~0;~signedtounsigned~0 := ~signedallbits~0; VAL [main_~allbits~0=(- 1), main_~signedallbits~0=(- 1), main_~signedtosigned~0=(- 1), main_~signedtounsigned~0=(- 1), main_~unsignedtosigned~0=65535, main_~unsignedtounsigned~0=65535] [?] assume ((65535 == ~unsignedtosigned~0 && 65535 == ~unsignedtounsigned~0 % 4294967296) && -1 == ~signedtosigned~0) && 4294967295 == ~signedtounsigned~0 % 4294967296; VAL [main_~allbits~0=(- 1), main_~signedallbits~0=(- 1), main_~signedtosigned~0=(- 1), main_~signedtounsigned~0=(- 1), main_~unsignedtosigned~0=65535, main_~unsignedtounsigned~0=65535] [?] assume !false; VAL [main_~allbits~0=(- 1), main_~signedallbits~0=(- 1), main_~signedtosigned~0=(- 1), main_~signedtounsigned~0=(- 1), main_~unsignedtosigned~0=65535, main_~unsignedtounsigned~0=65535] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L5] ~allbits~0 := -1; [L6] ~signedallbits~0 := (if ~allbits~0 % 65536 % 65536 <= 32767 then ~allbits~0 % 65536 % 65536 else ~allbits~0 % 65536 % 65536 - 65536); [L7] ~unsignedtosigned~0 := ~allbits~0 % 65536; [L8] ~unsignedtounsigned~0 := ~allbits~0 % 65536; [L9] ~signedtosigned~0 := ~signedallbits~0; [L10] ~signedtounsigned~0 := ~signedallbits~0; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L19-L22] assume ((65535 == ~unsignedtosigned~0 && 65535 == ~unsignedtounsigned~0 % 4294967296) && -1 == ~signedtosigned~0) && 4294967295 == ~signedtounsigned~0 % 4294967296; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L25] assert false; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L5] ~allbits~0 := -1; [L6] ~signedallbits~0 := (if ~allbits~0 % 65536 % 65536 <= 32767 then ~allbits~0 % 65536 % 65536 else ~allbits~0 % 65536 % 65536 - 65536); [L7] ~unsignedtosigned~0 := ~allbits~0 % 65536; [L8] ~unsignedtounsigned~0 := ~allbits~0 % 65536; [L9] ~signedtosigned~0 := ~signedallbits~0; [L10] ~signedtounsigned~0 := ~signedallbits~0; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L19-L22] assume ((65535 == ~unsignedtosigned~0 && 65535 == ~unsignedtounsigned~0 % 4294967296) && -1 == ~signedtosigned~0) && 4294967295 == ~signedtounsigned~0 % 4294967296; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L25] assert false; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L5] ~allbits~0 := -1; [L6] ~signedallbits~0 := (if ~allbits~0 % 65536 % 65536 <= 32767 then ~allbits~0 % 65536 % 65536 else ~allbits~0 % 65536 % 65536 - 65536); [L7] ~unsignedtosigned~0 := ~allbits~0 % 65536; [L8] ~unsignedtounsigned~0 := ~allbits~0 % 65536; [L9] ~signedtosigned~0 := ~signedallbits~0; [L10] ~signedtounsigned~0 := ~signedallbits~0; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L19-L20] COND TRUE ((65535 == ~unsignedtosigned~0 && 65535 == ~unsignedtounsigned~0 % 4294967296) && -1 == ~signedtosigned~0) && 4294967295 == ~signedtounsigned~0 % 4294967296 VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L25] assert false; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L5] ~allbits~0 := -1; [L6] ~signedallbits~0 := (if ~allbits~0 % 65536 % 65536 <= 32767 then ~allbits~0 % 65536 % 65536 else ~allbits~0 % 65536 % 65536 - 65536); [L7] ~unsignedtosigned~0 := ~allbits~0 % 65536; [L8] ~unsignedtounsigned~0 := ~allbits~0 % 65536; [L9] ~signedtosigned~0 := ~signedallbits~0; [L10] ~signedtounsigned~0 := ~signedallbits~0; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L19-L20] COND TRUE ((65535 == ~unsignedtosigned~0 && 65535 == ~unsignedtounsigned~0 % 4294967296) && -1 == ~signedtosigned~0) && 4294967295 == ~signedtounsigned~0 % 4294967296 VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L25] assert false; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L5] ~allbits~0 := -1; [L6] ~signedallbits~0 := (if ~allbits~0 % 65536 % 65536 <= 32767 then ~allbits~0 % 65536 % 65536 else ~allbits~0 % 65536 % 65536 - 65536); [L7] ~unsignedtosigned~0 := ~allbits~0 % 65536; [L8] ~unsignedtounsigned~0 := ~allbits~0 % 65536; [L9] ~signedtosigned~0 := ~signedallbits~0; [L10] ~signedtounsigned~0 := ~signedallbits~0; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L19-L20] COND TRUE ((65535 == ~unsignedtosigned~0 && 65535 == ~unsignedtounsigned~0 % 4294967296) && -1 == ~signedtosigned~0) && 4294967295 == ~signedtounsigned~0 % 4294967296 VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L25] assert false; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L5] ~allbits~0 := -1; [L6] ~signedallbits~0 := (if ~allbits~0 % 65536 % 65536 <= 32767 then ~allbits~0 % 65536 % 65536 else ~allbits~0 % 65536 % 65536 - 65536); [L7] ~unsignedtosigned~0 := ~allbits~0 % 65536; [L8] ~unsignedtounsigned~0 := ~allbits~0 % 65536; [L9] ~signedtosigned~0 := ~signedallbits~0; [L10] ~signedtounsigned~0 := ~signedallbits~0; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L19-L20] COND TRUE ((65535 == ~unsignedtosigned~0 && 65535 == ~unsignedtounsigned~0 % 4294967296) && -1 == ~signedtosigned~0) && 4294967295 == ~signedtounsigned~0 % 4294967296 VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L25] assert false; VAL [~allbits~0=-1, ~signedallbits~0=-1, ~signedtosigned~0=-1, ~signedtounsigned~0=-1, ~unsignedtosigned~0=65535, ~unsignedtounsigned~0=65535] [L5] unsigned short int allbits = -1; [L6] short int signedallbits = allbits; [L7] int unsignedtosigned = allbits; [L8] unsigned int unsignedtounsigned = allbits; [L9] int signedtosigned = signedallbits; [L10] unsigned int signedtounsigned = signedallbits; VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] [L19-L20] COND TRUE unsignedtosigned == 65535 && unsignedtounsigned == 65535 && signedtosigned == -1 && signedtounsigned == 4294967295 VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] [L25] __VERIFIER_error() VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] ----- [2018-11-23 15:15:58,160 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4093e251-9fc5-468a-a650-44189f127d0d/bin-2019/utaipan/witness.graphml [2018-11-23 15:15:58,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 15:15:58,161 INFO L168 Benchmark]: Toolchain (without parser) took 544.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:15:58,162 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:15:58,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.41 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:15:58,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.94 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:15:58,163 INFO L168 Benchmark]: Boogie Preprocessor took 10.85 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:15:58,164 INFO L168 Benchmark]: RCFGBuilder took 159.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -195.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 15:15:58,164 INFO L168 Benchmark]: TraceAbstraction took 177.93 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-23 15:15:58,165 INFO L168 Benchmark]: Witness Printer took 36.76 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. [2018-11-23 15:15:58,167 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.41 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.94 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.85 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 159.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -195.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 177.93 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 36.76 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: - CounterExampleResult [Line: 25]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L5] unsigned short int allbits = -1; [L6] short int signedallbits = allbits; [L7] int unsignedtosigned = allbits; [L8] unsigned int unsignedtounsigned = allbits; [L9] int signedtosigned = signedallbits; [L10] unsigned int signedtounsigned = signedallbits; VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] [L19-L20] COND TRUE unsignedtosigned == 65535 && unsignedtounsigned == 65535 && signedtosigned == -1 && signedtounsigned == 4294967295 VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] [L25] __VERIFIER_error() VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...