./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/signextension2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/signextension2-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/bin/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 3d4720d49a1188bad2d134c8dd08313372db11fb .................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:37,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:37,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:37,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:37,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:37,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:37,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:37,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:37,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:37,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:37,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:37,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:37,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:37,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:37,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:37,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:37,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:37,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:37,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:37,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:37,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:37,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:37,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:37,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:37,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:37,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:37,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:37,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:37,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:37,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:37,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:37,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:37,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:37,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:37,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:37,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:37,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:37,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:37,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:37,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:37,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:37,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:25:37,233 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:37,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:37,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:37,234 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:37,234 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:37,234 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:37,235 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:37,235 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:37,235 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:37,235 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:37,235 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:37,235 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:37,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:37,236 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:37,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:37,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:37,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:37,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:37,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:37,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:37,237 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:37,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:37,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:37,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:37,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:37,238 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:37,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:37,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:37,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:37,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:37,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:37,239 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:37,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:37,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:37,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:37,239 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/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/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 ! 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 -> 3d4720d49a1188bad2d134c8dd08313372db11fb [2019-10-22 11:25:37,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:37,286 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:37,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:37,289 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:37,290 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:37,290 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/bin/utaipan/../../sv-benchmarks/c/bitvector-regression/signextension2-1.c [2019-10-22 11:25:37,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/bin/utaipan/data/6946c90b3/bcf0e57ef31e4312892d4aa2c786eee4/FLAG991973123 [2019-10-22 11:25:37,730 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:37,731 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/sv-benchmarks/c/bitvector-regression/signextension2-1.c [2019-10-22 11:25:37,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/bin/utaipan/data/6946c90b3/bcf0e57ef31e4312892d4aa2c786eee4/FLAG991973123 [2019-10-22 11:25:38,147 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/bin/utaipan/data/6946c90b3/bcf0e57ef31e4312892d4aa2c786eee4 [2019-10-22 11:25:38,151 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:38,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:38,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:38,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:38,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:38,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538b3fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38, skipping insertion in model container [2019-10-22 11:25:38,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,169 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:38,183 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:38,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:38,321 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:38,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:38,398 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:38,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38 WrapperNode [2019-10-22 11:25:38,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:38,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:38,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:38,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:38,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:38,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:38,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:38,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:38,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... [2019-10-22 11:25:38,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:38,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:38,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:38,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:38,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/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 [2019-10-22 11:25:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:38,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:38,596 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:38,597 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:25:38,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:38 BoogieIcfgContainer [2019-10-22 11:25:38,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:38,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:38,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:38,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:38,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:38" (1/3) ... [2019-10-22 11:25:38,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9a441e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:38, skipping insertion in model container [2019-10-22 11:25:38,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:38" (2/3) ... [2019-10-22 11:25:38,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9a441e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:38, skipping insertion in model container [2019-10-22 11:25:38,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:38" (3/3) ... [2019-10-22 11:25:38,606 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension2-1.c [2019-10-22 11:25:38,614 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:38,618 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:25:38,626 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:25:38,645 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:38,645 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:38,646 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:38,646 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:38,646 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:38,646 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:38,646 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:38,646 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-10-22 11:25:38,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:25:38,661 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:38,661 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:25:38,663 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:38,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:38,668 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2019-10-22 11:25:38,676 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:38,676 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356403901] [2019-10-22 11:25:38,677 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:38,677 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:38,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:38,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:38,896 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356403901] [2019-10-22 11:25:38,897 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:38,897 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:38,897 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019331090] [2019-10-22 11:25:38,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:38,902 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:38,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:38,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:38,918 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-10-22 11:25:38,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:38,936 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-10-22 11:25:38,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:38,938 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-10-22 11:25:38,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:38,944 INFO L225 Difference]: With dead ends: 10 [2019-10-22 11:25:38,944 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:25:38,946 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:38,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:25:38,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:25:38,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:25:38,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:25:38,974 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-10-22 11:25:38,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:38,974 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:25:38,974 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:38,974 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:25:38,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:25:38,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:25:39,067 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:25:39,067 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:25:39,067 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:25:39,067 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2019-10-22 11:25:39,068 INFO L439 ceAbstractionStarter]: At program point L18(lines 3 19) the Hoare annotation is: (and (< (+ (* 4294967296 (div ULTIMATE.start_main_~castToULong~0 4294967296)) 4294967294) ULTIMATE.start_main_~castToULong~0) (<= (+ (* 4294967296 (div ULTIMATE.start_main_~castToLong~0 4294967296)) 4294967295) ULTIMATE.start_main_~castToLong~0) (= (+ ULTIMATE.start_main_~castToLong2~0 1) 0) (<= (+ ULTIMATE.start_main_~castToULong~0 1) 0) (= 0 (+ ULTIMATE.start_main_~castToInt~0 1))) [2019-10-22 11:25:39,068 INFO L439 ceAbstractionStarter]: At program point L13(lines 3 19) the Hoare annotation is: false [2019-10-22 11:25:39,068 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 14) no Hoare annotation was computed. [2019-10-22 11:25:39,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:25:39 BoogieIcfgContainer [2019-10-22 11:25:39,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:25:39,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:25:39,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:25:39,081 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:25:39,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:38" (3/4) ... [2019-10-22 11:25:39,086 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:25:39,096 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:25:39,096 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:25:39,128 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bd828bc6-4d3a-49f2-8385-b625f7549de3/bin/utaipan/witness.graphml [2019-10-22 11:25:39,129 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:25:39,131 INFO L168 Benchmark]: Toolchain (without parser) took 978.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -118.2 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:39,131 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:39,132 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -172.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:39,132 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.41 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. [2019-10-22 11:25:39,132 INFO L168 Benchmark]: Boogie Preprocessor took 12.27 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:39,133 INFO L168 Benchmark]: RCFGBuilder took 160.84 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: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:39,133 INFO L168 Benchmark]: TraceAbstraction took 480.78 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:39,134 INFO L168 Benchmark]: Witness Printer took 48.26 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:39,136 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 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 246.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -172.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.41 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 12.27 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 160.84 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: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 480.78 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 48.26 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (((4294967296 * (castToULong / 4294967296) + 4294967294 < castToULong && 4294967296 * (castToLong / 4294967296) + 4294967295 <= castToLong) && castToLong2 + 1 == 0) && castToULong + 1 <= 0) && 0 == castToInt + 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 35 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 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 correct! Received shutdown request...