./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.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_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/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 0165a55c46ef5a57261b602c26894979b70d9ffe .................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/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 0165a55c46ef5a57261b602c26894979b70d9ffe .................................................................................................................................................................................................................................. 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 21:23:38,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:23:38,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:23:38,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:23:38,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:23:38,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:23:38,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:23:38,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:23:38,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:23:38,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:23:38,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:23:38,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:23:38,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:23:38,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:23:38,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:23:38,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:23:38,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:23:38,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:23:38,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:23:38,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:23:38,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:23:38,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:23:38,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:23:38,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:23:38,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:23:38,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:23:38,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:23:38,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:23:38,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:23:38,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:23:38,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:23:38,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:23:38,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:23:38,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:23:38,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:23:38,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:23:38,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:23:38,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:23:38,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:23:38,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:23:38,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:23:38,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 21:23:38,344 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:23:38,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:23:38,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:23:38,345 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:23:38,345 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:23:38,345 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:23:38,345 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 21:23:38,345 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:23:38,345 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:23:38,346 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 21:23:38,346 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 21:23:38,346 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:23:38,346 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 21:23:38,346 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 21:23:38,346 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 21:23:38,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:23:38,347 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:23:38,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 21:23:38,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:23:38,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:23:38,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:23:38,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:23:38,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:23:38,348 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:23:38,349 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:23:38,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:23:38,349 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:23:38,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:23:38,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:23:38,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:23:38,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:23:38,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:23:38,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:23:38,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:23:38,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:23:38,351 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 21:23:38,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 21:23:38,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:23:38,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:23:38,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:23:38,351 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/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 -> 0165a55c46ef5a57261b602c26894979b70d9ffe [2019-12-07 21:23:38,459 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:23:38,469 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:23:38,472 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:23:38,473 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:23:38,473 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:23:38,474 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2019-12-07 21:23:38,515 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/data/26af60271/78400da9932343a8a3aed1db9cea919a/FLAGc929b112d [2019-12-07 21:23:38,810 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:23:38,811 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2019-12-07 21:23:38,815 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/data/26af60271/78400da9932343a8a3aed1db9cea919a/FLAGc929b112d [2019-12-07 21:23:38,824 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/data/26af60271/78400da9932343a8a3aed1db9cea919a [2019-12-07 21:23:38,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:23:38,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:23:38,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:23:38,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:23:38,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:23:38,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:23:38" (1/1) ... [2019-12-07 21:23:38,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc7a4e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:38, skipping insertion in model container [2019-12-07 21:23:38,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:23:38" (1/1) ... [2019-12-07 21:23:38,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:23:38,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:23:38,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:23:38,986 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:23:38,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:23:39,003 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:23:39,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:39 WrapperNode [2019-12-07 21:23:39,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:23:39,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:23:39,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:23:39,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:23:39,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:39" (1/1) ... [2019-12-07 21:23:39,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:39" (1/1) ... [2019-12-07 21:23:39,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:23:39,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:23:39,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:23:39,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:23:39,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:39" (1/1) ... [2019-12-07 21:23:39,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:39" (1/1) ... [2019-12-07 21:23:39,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:39" (1/1) ... [2019-12-07 21:23:39,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:39" (1/1) ... [2019-12-07 21:23:39,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:39" (1/1) ... [2019-12-07 21:23:39,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:39" (1/1) ... [2019-12-07 21:23:39,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:39" (1/1) ... [2019-12-07 21:23:39,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:23:39,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:23:39,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:23:39,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:23:39,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/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 [2019-12-07 21:23:39,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:23:39,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:23:39,171 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:23:39,171 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 21:23:39,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:23:39 BoogieIcfgContainer [2019-12-07 21:23:39,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:23:39,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:23:39,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:23:39,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:23:39,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:23:38" (1/3) ... [2019-12-07 21:23:39,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ff3e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:23:39, skipping insertion in model container [2019-12-07 21:23:39,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:39" (2/3) ... [2019-12-07 21:23:39,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ff3e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:23:39, skipping insertion in model container [2019-12-07 21:23:39,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:23:39" (3/3) ... [2019-12-07 21:23:39,177 INFO L109 eAbstractionObserver]: Analyzing ICFG implicitfloatconversion.c [2019-12-07 21:23:39,184 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:23:39,188 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 21:23:39,195 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 21:23:39,210 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:23:39,210 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:23:39,210 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:23:39,210 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:23:39,210 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:23:39,210 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:23:39,210 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:23:39,210 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:23:39,219 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-12-07 21:23:39,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 21:23:39,222 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:23:39,223 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 21:23:39,223 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:23:39,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:23:39,227 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2019-12-07 21:23:39,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 21:23:39,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618287521] [2019-12-07 21:23:39,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 21:23:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:23:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:23:39,295 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 21:23:39,295 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 21:23:39,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:23:39 BoogieIcfgContainer [2019-12-07 21:23:39,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:23:39,305 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:23:39,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:23:39,305 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:23:39,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:23:39" (3/4) ... [2019-12-07 21:23:39,308 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 21:23:39,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:23:39,310 INFO L168 Benchmark]: Toolchain (without parser) took 482.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -106.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:23:39,310 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:23:39,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -135.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 21:23:39,311 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.73 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 21:23:39,312 INFO L168 Benchmark]: Boogie Preprocessor took 12.81 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 21:23:39,312 INFO L168 Benchmark]: RCFGBuilder took 131.23 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-12-07 21:23:39,313 INFO L168 Benchmark]: TraceAbstraction took 131.48 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 21:23:39,313 INFO L168 Benchmark]: Witness Printer took 3.07 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 21:23:39,315 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -135.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.73 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 12.81 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 131.23 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 131.48 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.07 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: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 5, overapproximation of to_real at line 4. Possible FailurePath: [L4] float f = 1; [L5] int i = f; [L6] COND TRUE i == 1 [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.0s, 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=6occurred 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 21:23:40,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:23:40,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:23:40,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:23:40,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:23:40,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:23:40,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:23:40,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:23:40,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:23:40,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:23:40,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:23:40,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:23:40,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:23:40,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:23:40,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:23:40,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:23:40,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:23:40,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:23:40,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:23:40,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:23:40,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:23:40,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:23:40,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:23:40,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:23:40,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:23:40,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:23:40,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:23:40,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:23:40,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:23:40,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:23:40,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:23:40,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:23:40,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:23:40,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:23:40,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:23:40,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:23:40,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:23:40,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:23:40,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:23:40,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:23:40,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:23:40,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 21:23:40,706 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:23:40,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:23:40,707 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:23:40,707 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:23:40,707 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:23:40,707 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:23:40,707 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:23:40,707 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:23:40,707 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:23:40,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:23:40,708 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:23:40,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:23:40,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:23:40,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:23:40,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:23:40,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:23:40,709 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:23:40,709 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 21:23:40,709 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 21:23:40,709 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:23:40,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:23:40,709 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:23:40,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:23:40,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:23:40,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 21:23:40,710 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:23:40,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:23:40,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:23:40,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:23:40,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:23:40,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:23:40,711 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 21:23:40,711 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 21:23:40,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:23:40,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:23:40,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:23:40,711 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_2d77e30c-71df-4e11-befb-5c12ceef6749/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 -> 0165a55c46ef5a57261b602c26894979b70d9ffe [2019-12-07 21:23:40,889 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:23:40,897 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:23:40,900 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:23:40,901 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:23:40,901 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:23:40,901 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2019-12-07 21:23:40,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/data/e7deb3f27/55bc59362a6d45d7a40d0fbed8f5c869/FLAGe14d44fd4 [2019-12-07 21:23:41,393 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:23:41,393 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2019-12-07 21:23:41,397 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/data/e7deb3f27/55bc59362a6d45d7a40d0fbed8f5c869/FLAGe14d44fd4 [2019-12-07 21:23:41,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/data/e7deb3f27/55bc59362a6d45d7a40d0fbed8f5c869 [2019-12-07 21:23:41,407 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:23:41,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:23:41,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:23:41,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:23:41,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:23:41,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:23:41" (1/1) ... [2019-12-07 21:23:41,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d189561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:41, skipping insertion in model container [2019-12-07 21:23:41,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:23:41" (1/1) ... [2019-12-07 21:23:41,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:23:41,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:23:41,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:23:41,534 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:23:41,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:23:41,554 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:23:41,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:41 WrapperNode [2019-12-07 21:23:41,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:23:41,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:23:41,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:23:41,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:23:41,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:41" (1/1) ... [2019-12-07 21:23:41,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:41" (1/1) ... [2019-12-07 21:23:41,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:23:41,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:23:41,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:23:41,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:23:41,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:41" (1/1) ... [2019-12-07 21:23:41,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:41" (1/1) ... [2019-12-07 21:23:41,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:41" (1/1) ... [2019-12-07 21:23:41,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:41" (1/1) ... [2019-12-07 21:23:41,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:41" (1/1) ... [2019-12-07 21:23:41,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:41" (1/1) ... [2019-12-07 21:23:41,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:41" (1/1) ... [2019-12-07 21:23:41,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:23:41,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:23:41,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:23:41,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:23:41,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/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 [2019-12-07 21:23:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:23:41,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:23:41,784 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:23:41,784 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 21:23:41,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:23:41 BoogieIcfgContainer [2019-12-07 21:23:41,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:23:41,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:23:41,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:23:41,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:23:41,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:23:41" (1/3) ... [2019-12-07 21:23:41,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf5eac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:23:41, skipping insertion in model container [2019-12-07 21:23:41,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:23:41" (2/3) ... [2019-12-07 21:23:41,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf5eac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:23:41, skipping insertion in model container [2019-12-07 21:23:41,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:23:41" (3/3) ... [2019-12-07 21:23:41,790 INFO L109 eAbstractionObserver]: Analyzing ICFG implicitfloatconversion.c [2019-12-07 21:23:41,796 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:23:41,800 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 21:23:41,808 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 21:23:41,823 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:23:41,823 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:23:41,823 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:23:41,824 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:23:41,824 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:23:41,824 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:23:41,824 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:23:41,824 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:23:41,833 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-12-07 21:23:41,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 21:23:41,837 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:23:41,837 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 21:23:41,838 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:23:41,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:23:41,841 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2019-12-07 21:23:41,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:23:41,849 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263273749] [2019-12-07 21:23:41,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 21:23:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:23:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:23:41,900 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 21:23:41,900 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 21:23:42,101 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 21:23:42,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:23:42 BoogieIcfgContainer [2019-12-07 21:23:42,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:23:42,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:23:42,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:23:42,124 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:23:42,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:23:41" (3/4) ... [2019-12-07 21:23:42,127 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 21:23:42,159 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2d77e30c-71df-4e11-befb-5c12ceef6749/bin/utaipan/witness.graphml [2019-12-07 21:23:42,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:23:42,161 INFO L168 Benchmark]: Toolchain (without parser) took 753.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:23:42,161 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:23:42,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.94 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 21:23:42,162 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-12-07 21:23:42,163 INFO L168 Benchmark]: Boogie Preprocessor took 15.79 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 21:23:42,163 INFO L168 Benchmark]: RCFGBuilder took 141.18 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: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. [2019-12-07 21:23:42,163 INFO L168 Benchmark]: TraceAbstraction took 336.94 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2019-12-07 21:23:42,164 INFO L168 Benchmark]: Witness Printer took 36.20 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 21:23:42,166 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 146.94 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 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 72.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.79 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 141.18 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: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 336.94 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * Witness Printer took 36.20 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L4] float f = 1; [L5] int i = f; [L6] COND TRUE i == 1 [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, 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=8occurred 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, 4 NumberOfCodeBlocks, 4 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...