./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/signextension-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector-regression/signextension-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/bin/uautomizer --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 Automizer --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 0.1.25-f470102 [2019-12-07 17:21:48,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:21:48,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:21:48,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:21:48,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:21:48,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:21:48,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:21:48,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:21:48,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:21:48,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:21:48,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:21:48,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:21:48,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:21:48,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:21:48,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:21:48,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:21:48,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:21:48,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:21:48,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:21:48,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:21:48,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:21:48,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:21:48,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:21:48,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:21:48,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:21:48,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:21:48,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:21:48,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:21:48,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:21:48,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:21:48,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:21:48,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:21:48,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:21:48,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:21:48,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:21:48,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:21:48,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:21:48,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:21:48,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:21:48,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:21:48,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:21:48,979 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 17:21:48,992 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:21:48,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:21:48,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:21:48,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:21:48,993 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:21:48,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:21:48,994 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:21:48,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:21:48,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:21:48,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:21:48,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:21:48,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:21:48,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:21:48,995 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:21:48,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:21:48,995 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:21:48,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:21:48,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:21:48,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:21:48,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:21:48,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:21:48,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:21:48,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:21:48,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:21:48,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:21:48,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:21:48,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:21:48,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:21:48,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:21:48,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/bin/uautomizer 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 -> Automizer 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 [2019-12-07 17:21:49,118 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:21:49,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:21:49,127 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:21:49,128 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:21:49,128 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:21:49,129 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/bin/uautomizer/../../sv-benchmarks/c/bitvector-regression/signextension-1.c [2019-12-07 17:21:49,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/bin/uautomizer/data/77fd57f1c/1e726b138fe141c78276a113a04d3c74/FLAG88d41498a [2019-12-07 17:21:49,494 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:21:49,495 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/sv-benchmarks/c/bitvector-regression/signextension-1.c [2019-12-07 17:21:49,498 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/bin/uautomizer/data/77fd57f1c/1e726b138fe141c78276a113a04d3c74/FLAG88d41498a [2019-12-07 17:21:49,507 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/bin/uautomizer/data/77fd57f1c/1e726b138fe141c78276a113a04d3c74 [2019-12-07 17:21:49,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:21:49,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:21:49,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:21:49,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:21:49,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:21:49,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:21:49" (1/1) ... [2019-12-07 17:21:49,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b5972f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:49, skipping insertion in model container [2019-12-07 17:21:49,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:21:49" (1/1) ... [2019-12-07 17:21:49,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:21:49,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:21:49,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:21:49,633 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:21:49,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:21:49,685 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:21:49,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:49 WrapperNode [2019-12-07 17:21:49,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:21:49,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:21:49,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:21:49,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:21:49,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:49" (1/1) ... [2019-12-07 17:21:49,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:49" (1/1) ... [2019-12-07 17:21:49,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:21:49,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:21:49,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:21:49,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:21:49,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:49" (1/1) ... [2019-12-07 17:21:49,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:49" (1/1) ... [2019-12-07 17:21:49,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:49" (1/1) ... [2019-12-07 17:21:49,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:49" (1/1) ... [2019-12-07 17:21:49,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:49" (1/1) ... [2019-12-07 17:21:49,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:49" (1/1) ... [2019-12-07 17:21:49,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:49" (1/1) ... [2019-12-07 17:21:49,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:21:49,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:21:49,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:21:49,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:21:49,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/bin/uautomizer/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 [2019-12-07 17:21:49,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:21:49,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:21:49,842 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:21:49,842 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 17:21:49,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:21:49 BoogieIcfgContainer [2019-12-07 17:21:49,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:21:49,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:21:49,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:21:49,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:21:49,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:21:49" (1/3) ... [2019-12-07 17:21:49,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45464d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:21:49, skipping insertion in model container [2019-12-07 17:21:49,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:21:49" (2/3) ... [2019-12-07 17:21:49,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45464d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:21:49, skipping insertion in model container [2019-12-07 17:21:49,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:21:49" (3/3) ... [2019-12-07 17:21:49,847 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension-1.c [2019-12-07 17:21:49,854 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:21:49,858 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:21:49,865 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 17:21:49,879 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:21:49,879 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:21:49,879 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:21:49,879 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:21:49,879 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:21:49,879 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:21:49,879 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:21:49,879 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:21:49,888 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-12-07 17:21:49,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 17:21:49,891 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:21:49,891 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 17:21:49,892 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:21:49,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:21:49,895 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2019-12-07 17:21:49,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:21:49,901 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002637810] [2019-12-07 17:21:49,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:21:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:21:49,989 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:21:49,989 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:21:50,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:21:50 BoogieIcfgContainer [2019-12-07 17:21:50,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:21:50,000 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:21:50,000 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:21:50,000 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:21:50,001 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:21:49" (3/4) ... [2019-12-07 17:21:50,002 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 17:21:50,027 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7e191fd9-96dd-406a-a995-b0ddb5a2b1d9/bin/uautomizer/witness.graphml [2019-12-07 17:21:50,027 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:21:50,029 INFO L168 Benchmark]: Toolchain (without parser) took 518.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -120.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:21:50,029 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:21:50,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -153.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:21:50,030 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.50 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:21:50,030 INFO L168 Benchmark]: Boogie Preprocessor took 9.66 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:21:50,031 INFO L168 Benchmark]: RCFGBuilder took 124.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:21:50,031 INFO L168 Benchmark]: TraceAbstraction took 156.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:21:50,031 INFO L168 Benchmark]: Witness Printer took 27.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:21:50,033 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -153.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.50 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.66 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 124.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 156.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 27.34 ms. Allocated memory is still 1.1 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; [L19-L20] COND TRUE unsignedtosigned == 65535 && unsignedtounsigned == 65535 && signedtosigned == -1 && signedtounsigned == 4294967295 [L25] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...