./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5cdc4d12f446be57385f35c672efbdd6980b00fa ................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5cdc4d12f446be57385f35c672efbdd6980b00fa .............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 03:19:02,264 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 03:19:02,265 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 03:19:02,271 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 03:19:02,271 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 03:19:02,272 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 03:19:02,272 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 03:19:02,273 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 03:19:02,274 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 03:19:02,274 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 03:19:02,275 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 03:19:02,275 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 03:19:02,275 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 03:19:02,276 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 03:19:02,276 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 03:19:02,277 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 03:19:02,277 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 03:19:02,278 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 03:19:02,279 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 03:19:02,280 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 03:19:02,280 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 03:19:02,281 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 03:19:02,282 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 03:19:02,282 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 03:19:02,282 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 03:19:02,283 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 03:19:02,283 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 03:19:02,284 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 03:19:02,284 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 03:19:02,285 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 03:19:02,285 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 03:19:02,285 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 03:19:02,285 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 03:19:02,286 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 03:19:02,286 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 03:19:02,286 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 03:19:02,287 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 03:19:02,294 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 03:19:02,294 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 03:19:02,295 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 03:19:02,295 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 03:19:02,295 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 03:19:02,295 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 03:19:02,295 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 03:19:02,295 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 03:19:02,295 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 03:19:02,296 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 03:19:02,296 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 03:19:02,296 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 03:19:02,296 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 03:19:02,296 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 03:19:02,296 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 03:19:02,297 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 03:19:02,297 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 03:19:02,297 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 03:19:02,297 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 03:19:02,297 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 03:19:02,297 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 03:19:02,297 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 03:19:02,297 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 03:19:02,298 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 03:19:02,298 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 03:19:02,298 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 03:19:02,298 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 03:19:02,298 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 03:19:02,298 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 03:19:02,298 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 03:19:02,299 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 03:19:02,299 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 03:19:02,299 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 03:19:02,299 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 03:19:02,299 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 03:19:02,299 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 03:19:02,299 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cdc4d12f446be57385f35c672efbdd6980b00fa [2018-12-09 03:19:02,316 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 03:19:02,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 03:19:02,325 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 03:19:02,326 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 03:19:02,326 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 03:19:02,327 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2018-12-09 03:19:02,359 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/data/af72756fd/5db5c2c9bc604e90ac4f669f80ef16de/FLAGe770d7f7f [2018-12-09 03:19:02,772 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 03:19:02,773 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2018-12-09 03:19:02,776 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/data/af72756fd/5db5c2c9bc604e90ac4f669f80ef16de/FLAGe770d7f7f [2018-12-09 03:19:02,785 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/data/af72756fd/5db5c2c9bc604e90ac4f669f80ef16de [2018-12-09 03:19:02,786 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 03:19:02,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 03:19:02,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 03:19:02,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 03:19:02,790 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 03:19:02,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:19:02" (1/1) ... [2018-12-09 03:19:02,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54724d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:02, skipping insertion in model container [2018-12-09 03:19:02,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:19:02" (1/1) ... [2018-12-09 03:19:02,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 03:19:02,805 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 03:19:02,888 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 03:19:02,890 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 03:19:02,898 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 03:19:02,906 INFO L195 MainTranslator]: Completed translation [2018-12-09 03:19:02,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:02 WrapperNode [2018-12-09 03:19:02,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 03:19:02,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 03:19:02,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 03:19:02,907 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 03:19:02,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:02" (1/1) ... [2018-12-09 03:19:02,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:02" (1/1) ... [2018-12-09 03:19:02,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 03:19:02,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 03:19:02,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 03:19:02,918 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 03:19:02,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:02" (1/1) ... [2018-12-09 03:19:02,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:02" (1/1) ... [2018-12-09 03:19:02,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:02" (1/1) ... [2018-12-09 03:19:02,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:02" (1/1) ... [2018-12-09 03:19:02,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:02" (1/1) ... [2018-12-09 03:19:02,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:02" (1/1) ... [2018-12-09 03:19:02,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:02" (1/1) ... [2018-12-09 03:19:02,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 03:19:02,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 03:19:02,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 03:19:02,928 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 03:19:02,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 03:19:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 03:19:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 03:19:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 03:19:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 03:19:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 03:19:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 03:19:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 03:19:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 03:19:03,062 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 03:19:03,062 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 03:19:03,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:19:03 BoogieIcfgContainer [2018-12-09 03:19:03,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 03:19:03,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 03:19:03,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 03:19:03,065 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 03:19:03,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:19:02" (1/3) ... [2018-12-09 03:19:03,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e7a49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:19:03, skipping insertion in model container [2018-12-09 03:19:03,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:02" (2/3) ... [2018-12-09 03:19:03,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e7a49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:19:03, skipping insertion in model container [2018-12-09 03:19:03,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:19:03" (3/3) ... [2018-12-09 03:19:03,067 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_false-unreach-call_true-termination.c [2018-12-09 03:19:03,072 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 03:19:03,076 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 03:19:03,084 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 03:19:03,102 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 03:19:03,102 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 03:19:03,102 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 03:19:03,102 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 03:19:03,102 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 03:19:03,102 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 03:19:03,102 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 03:19:03,103 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 03:19:03,112 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-12-09 03:19:03,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 03:19:03,116 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:19:03,116 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 03:19:03,117 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:19:03,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:19:03,120 INFO L82 PathProgramCache]: Analyzing trace with hash 697060158, now seen corresponding path program 1 times [2018-12-09 03:19:03,122 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:19:03,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:19:03,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:19:03,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:19:03,150 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:19:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 03:19:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 03:19:03,185 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 03:19:03,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:19:03 BoogieIcfgContainer [2018-12-09 03:19:03,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 03:19:03,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 03:19:03,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 03:19:03,199 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 03:19:03,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:19:03" (3/4) ... [2018-12-09 03:19:03,201 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 03:19:03,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 03:19:03,202 INFO L168 Benchmark]: Toolchain (without parser) took 415.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 956.1 MB in the beginning and 1.1 GB in the end (delta: -150.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 03:19:03,203 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 03:19:03,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 118.27 ms. Allocated memory is still 1.0 GB. Free memory was 956.1 MB in the beginning and 945.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-09 03:19:03,204 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.19 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 03:19:03,204 INFO L168 Benchmark]: Boogie Preprocessor took 10.25 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 03:19:03,204 INFO L168 Benchmark]: RCFGBuilder took 134.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-12-09 03:19:03,205 INFO L168 Benchmark]: TraceAbstraction took 135.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-12-09 03:19:03,205 INFO L168 Benchmark]: Witness Printer took 2.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 03:19:03,207 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 118.27 ms. Allocated memory is still 1.0 GB. Free memory was 956.1 MB in the beginning and 945.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.19 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.25 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 134.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 135.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 19, overapproximation of someBinaryArithmeticFLOAToperation at line 18. Possible FailurePath: [L12] float x, y, z; [L14] x = __VERIFIER_nondet_float() [L17] COND TRUE x != 0.f [L18] y = x * x VAL [x=2] [L19] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 03:19:04,493 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 03:19:04,494 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 03:19:04,500 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 03:19:04,500 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 03:19:04,501 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 03:19:04,501 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 03:19:04,502 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 03:19:04,503 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 03:19:04,503 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 03:19:04,504 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 03:19:04,504 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 03:19:04,504 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 03:19:04,505 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 03:19:04,506 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 03:19:04,506 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 03:19:04,506 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 03:19:04,507 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 03:19:04,508 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 03:19:04,509 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 03:19:04,509 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 03:19:04,510 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 03:19:04,511 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 03:19:04,511 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 03:19:04,511 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 03:19:04,512 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 03:19:04,512 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 03:19:04,513 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 03:19:04,513 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 03:19:04,513 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 03:19:04,514 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 03:19:04,514 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 03:19:04,514 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 03:19:04,514 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 03:19:04,515 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 03:19:04,515 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 03:19:04,515 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 03:19:04,522 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 03:19:04,522 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 03:19:04,523 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 03:19:04,523 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 03:19:04,523 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 03:19:04,523 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 03:19:04,523 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 03:19:04,523 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 03:19:04,523 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 03:19:04,524 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 03:19:04,524 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 03:19:04,524 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 03:19:04,524 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 03:19:04,524 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 03:19:04,524 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 03:19:04,524 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 03:19:04,524 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 03:19:04,525 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 03:19:04,525 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 03:19:04,525 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 03:19:04,525 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 03:19:04,525 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 03:19:04,525 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 03:19:04,525 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 03:19:04,525 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 03:19:04,525 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 03:19:04,525 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 03:19:04,526 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 03:19:04,526 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 03:19:04,526 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 03:19:04,526 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 03:19:04,526 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 03:19:04,526 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 03:19:04,526 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 03:19:04,526 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 03:19:04,526 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cdc4d12f446be57385f35c672efbdd6980b00fa [2018-12-09 03:19:04,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 03:19:04,553 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 03:19:04,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 03:19:04,556 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 03:19:04,556 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 03:19:04,556 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2018-12-09 03:19:04,592 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/data/db5c39268/33be56a9a3304ec183674f3b3d85e771/FLAG552d420bb [2018-12-09 03:19:04,891 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 03:19:04,892 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2018-12-09 03:19:04,895 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/data/db5c39268/33be56a9a3304ec183674f3b3d85e771/FLAG552d420bb [2018-12-09 03:19:04,903 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/data/db5c39268/33be56a9a3304ec183674f3b3d85e771 [2018-12-09 03:19:04,905 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 03:19:04,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 03:19:04,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 03:19:04,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 03:19:04,908 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 03:19:04,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:19:04" (1/1) ... [2018-12-09 03:19:04,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@265c0857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:04, skipping insertion in model container [2018-12-09 03:19:04,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:19:04" (1/1) ... [2018-12-09 03:19:04,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 03:19:04,924 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 03:19:05,008 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 03:19:05,011 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 03:19:05,020 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 03:19:05,029 INFO L195 MainTranslator]: Completed translation [2018-12-09 03:19:05,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:05 WrapperNode [2018-12-09 03:19:05,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 03:19:05,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 03:19:05,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 03:19:05,030 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 03:19:05,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:05" (1/1) ... [2018-12-09 03:19:05,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:05" (1/1) ... [2018-12-09 03:19:05,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 03:19:05,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 03:19:05,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 03:19:05,044 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 03:19:05,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:05" (1/1) ... [2018-12-09 03:19:05,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:05" (1/1) ... [2018-12-09 03:19:05,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:05" (1/1) ... [2018-12-09 03:19:05,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:05" (1/1) ... [2018-12-09 03:19:05,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:05" (1/1) ... [2018-12-09 03:19:05,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:05" (1/1) ... [2018-12-09 03:19:05,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:05" (1/1) ... [2018-12-09 03:19:05,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 03:19:05,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 03:19:05,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 03:19:05,057 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 03:19:05,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 03:19:05,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 03:19:05,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 03:19:05,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 03:19:05,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 03:19:05,118 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 03:19:05,119 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 03:19:05,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 03:19:05,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 03:19:05,757 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 03:19:05,757 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 03:19:05,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:19:05 BoogieIcfgContainer [2018-12-09 03:19:05,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 03:19:05,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 03:19:05,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 03:19:05,760 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 03:19:05,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:19:04" (1/3) ... [2018-12-09 03:19:05,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@902a23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:19:05, skipping insertion in model container [2018-12-09 03:19:05,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:19:05" (2/3) ... [2018-12-09 03:19:05,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@902a23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:19:05, skipping insertion in model container [2018-12-09 03:19:05,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:19:05" (3/3) ... [2018-12-09 03:19:05,761 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_false-unreach-call_true-termination.c [2018-12-09 03:19:05,767 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 03:19:05,771 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 03:19:05,779 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 03:19:05,796 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 03:19:05,796 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 03:19:05,796 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 03:19:05,796 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 03:19:05,796 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 03:19:05,797 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 03:19:05,797 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 03:19:05,797 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 03:19:05,797 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 03:19:05,806 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-12-09 03:19:05,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 03:19:05,809 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:19:05,809 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 03:19:05,811 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:19:05,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:19:05,814 INFO L82 PathProgramCache]: Analyzing trace with hash 697060158, now seen corresponding path program 1 times [2018-12-09 03:19:05,816 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 03:19:05,816 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/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 [2018-12-09 03:19:05,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:19:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 03:19:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 03:19:05,942 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 03:19:05,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:19:05 BoogieIcfgContainer [2018-12-09 03:19:05,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 03:19:05,958 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 03:19:05,958 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 03:19:05,958 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 03:19:05,958 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:19:05" (3/4) ... [2018-12-09 03:19:05,960 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 03:19:05,986 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_84b5194d-88ac-4ba4-8ac6-305e865efa4b/bin-2019/utaipan/witness.graphml [2018-12-09 03:19:05,987 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 03:19:05,987 INFO L168 Benchmark]: Toolchain (without parser) took 1081.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -134.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 03:19:05,988 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 03:19:05,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 123.16 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 03:19:05,988 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.44 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 03:19:05,989 INFO L168 Benchmark]: Boogie Preprocessor took 13.23 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 927.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-09 03:19:05,989 INFO L168 Benchmark]: RCFGBuilder took 700.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-09 03:19:05,989 INFO L168 Benchmark]: TraceAbstraction took 199.87 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2018-12-09 03:19:05,990 INFO L168 Benchmark]: Witness Printer took 28.63 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-09 03:19:05,991 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 123.16 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 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 13.44 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.23 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 927.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 700.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 199.87 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * Witness Printer took 28.63 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] float x, y, z; [L14] x = __VERIFIER_nondet_float() [L17] COND TRUE x != 0.f [L18] y = x * x VAL [x=0.000000000000000000000000000000000000000000001401298464324817, y=0.0] [L19] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...