./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c82214860fee184bc373305d606fd208dd65fd42 ............................................................................................................................................................................................................................................................................................................................................................................................... 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_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c82214860fee184bc373305d606fd208dd65fd42 ................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:15:51,700 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:15:51,700 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:15:51,707 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:15:51,708 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:15:51,708 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:15:51,709 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:15:51,710 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:15:51,711 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:15:51,712 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:15:51,712 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:15:51,712 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:15:51,713 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:15:51,714 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:15:51,715 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:15:51,715 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:15:51,716 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:15:51,717 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:15:51,718 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:15:51,719 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:15:51,720 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:15:51,721 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:15:51,722 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:15:51,722 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:15:51,723 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:15:51,723 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:15:51,724 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:15:51,724 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:15:51,725 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:15:51,726 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:15:51,726 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:15:51,726 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:15:51,727 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:15:51,727 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:15:51,727 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:15:51,728 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:15:51,728 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 13:15:51,738 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:15:51,738 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:15:51,738 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:15:51,739 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:15:51,739 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:15:51,739 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:15:51,739 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:15:51,739 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:15:51,740 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:15:51,740 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:15:51,740 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:15:51,740 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:15:51,740 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:15:51,740 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:15:51,740 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:15:51,741 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:15:51,741 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:15:51,741 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:15:51,741 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:15:51,741 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:15:51,741 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:15:51,741 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:15:51,741 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:15:51,742 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:15:51,742 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:15:51,742 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:15:51,742 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:15:51,742 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 13:15:51,742 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:15:51,743 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:15:51,743 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_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c82214860fee184bc373305d606fd208dd65fd42 [2018-11-23 13:15:51,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:15:51,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:15:51,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:15:51,775 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:15:51,775 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:15:51,775 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-11-23 13:15:51,811 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/data/66a34ba48/7dd2dae32130469c8a105c0e693e5cae/FLAGb199c3a7e [2018-11-23 13:15:52,232 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:15:52,232 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-11-23 13:15:52,237 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/data/66a34ba48/7dd2dae32130469c8a105c0e693e5cae/FLAGb199c3a7e [2018-11-23 13:15:52,248 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/data/66a34ba48/7dd2dae32130469c8a105c0e693e5cae [2018-11-23 13:15:52,251 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:15:52,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:15:52,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:15:52,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:15:52,256 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:15:52,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:15:52" (1/1) ... [2018-11-23 13:15:52,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc037f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:52, skipping insertion in model container [2018-11-23 13:15:52,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:15:52" (1/1) ... [2018-11-23 13:15:52,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:15:52,277 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:15:52,377 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:15:52,379 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:15:52,387 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:15:52,395 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:15:52,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:52 WrapperNode [2018-11-23 13:15:52,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:15:52,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:15:52,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:15:52,396 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:15:52,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:52" (1/1) ... [2018-11-23 13:15:52,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:52" (1/1) ... [2018-11-23 13:15:52,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:15:52,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:15:52,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:15:52,409 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:15:52,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:52" (1/1) ... [2018-11-23 13:15:52,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:52" (1/1) ... [2018-11-23 13:15:52,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:52" (1/1) ... [2018-11-23 13:15:52,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:52" (1/1) ... [2018-11-23 13:15:52,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:52" (1/1) ... [2018-11-23 13:15:52,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:52" (1/1) ... [2018-11-23 13:15:52,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:52" (1/1) ... [2018-11-23 13:15:52,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:15:52,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:15:52,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:15:52,420 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:15:52,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:15:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:15:52,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:15:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:15:52,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:15:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:15:52,487 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:15:52,556 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:15:52,556 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 13:15:52,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:15:52 BoogieIcfgContainer [2018-11-23 13:15:52,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:15:52,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:15:52,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:15:52,559 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:15:52,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:15:52" (1/3) ... [2018-11-23 13:15:52,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222d67ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:15:52, skipping insertion in model container [2018-11-23 13:15:52,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:52" (2/3) ... [2018-11-23 13:15:52,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222d67ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:15:52, skipping insertion in model container [2018-11-23 13:15:52,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:15:52" (3/3) ... [2018-11-23 13:15:52,562 INFO L112 eAbstractionObserver]: Analyzing ICFG float12_true-unreach-call_true-termination.i [2018-11-23 13:15:52,567 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:15:52,572 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:15:52,580 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:15:52,597 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:15:52,598 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:15:52,598 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:15:52,598 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:15:52,598 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:15:52,598 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:15:52,598 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:15:52,599 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:15:52,599 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:15:52,610 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-23 13:15:52,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 13:15:52,613 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:15:52,614 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:15:52,615 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:15:52,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:52,619 INFO L82 PathProgramCache]: Analyzing trace with hash -689330286, now seen corresponding path program 1 times [2018-11-23 13:15:52,620 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:15:52,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:15:52,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:52,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:15:52,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:15:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:15:52,680 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #21#return; [?] CALL call #t~ret2 := main(); [?] ~f~0 := #t~nondet0;havoc #t~nondet0;havoc ~d~0;~x~0 := #t~nondet1;havoc #t~nondet1;~d~0 := ~f~0; VAL [main_~d~0=0.0, main_~f~0=0.0, main_~x~0=1] [?] assume ~someBinaryFLOATComparisonOperation(~f~0, ~convertUCHARToFLOAT(~x~0)); VAL [main_~d~0=0.0, main_~f~0=0.0, main_~x~0=1] [?] assume !~someBinaryDOUBLEComparisonOperation(~d~0, ~convertUCHARToDOUBLE(~x~0)); VAL [main_~d~0=0.0, main_~f~0=0.0, main_~x~0=1] [?] assume !false; VAL [main_~d~0=0.0, main_~f~0=0.0, main_~x~0=1] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L6] ~f~0 := #t~nondet0; [L6] havoc #t~nondet0; [L7] havoc ~d~0; [L8] ~x~0 := #t~nondet1; [L8] havoc #t~nondet1; [L10] ~d~0 := ~f~0; VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L12-L13] assume ~someBinaryFLOATComparisonOperation(~f~0, ~convertUCHARToFLOAT(~x~0)); VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L13] assume !~someBinaryDOUBLEComparisonOperation(~d~0, ~convertUCHARToDOUBLE(~x~0)); VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L13] assert false; VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L6] ~f~0 := #t~nondet0; [L6] havoc #t~nondet0; [L7] havoc ~d~0; [L8] ~x~0 := #t~nondet1; [L8] havoc #t~nondet1; [L10] ~d~0 := ~f~0; VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L12-L13] assume ~someBinaryFLOATComparisonOperation(~f~0, ~convertUCHARToFLOAT(~x~0)); VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L13] assume !~someBinaryDOUBLEComparisonOperation(~d~0, ~convertUCHARToDOUBLE(~x~0)); VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L13] assert false; VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L6] ~f~0 := #t~nondet0; [L6] havoc #t~nondet0; [L7] havoc ~d~0; [L8] ~x~0 := #t~nondet1; [L8] havoc #t~nondet1; [L10] ~d~0 := ~f~0; VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L12] COND TRUE ~someBinaryFLOATComparisonOperation(~f~0, ~convertUCHARToFLOAT(~x~0)) VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L13] COND TRUE !~someBinaryDOUBLEComparisonOperation(~d~0, ~convertUCHARToDOUBLE(~x~0)) VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L13] assert false; VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L6] ~f~0 := #t~nondet0; [L6] havoc #t~nondet0; [L7] havoc ~d~0; [L8] ~x~0 := #t~nondet1; [L8] havoc #t~nondet1; [L10] ~d~0 := ~f~0; VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L12] COND TRUE ~someBinaryFLOATComparisonOperation(~f~0, ~convertUCHARToFLOAT(~x~0)) VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L13] COND TRUE !~someBinaryDOUBLEComparisonOperation(~d~0, ~convertUCHARToDOUBLE(~x~0)) VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L13] assert false; VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L6] ~f~0 := #t~nondet0; [L6] havoc #t~nondet0; [L7] havoc ~d~0; [L8] ~x~0 := #t~nondet1; [L8] havoc #t~nondet1; [L10] ~d~0 := ~f~0; VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L12] COND TRUE ~someBinaryFLOATComparisonOperation(~f~0, ~convertUCHARToFLOAT(~x~0)) VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L13] COND TRUE !~someBinaryDOUBLEComparisonOperation(~d~0, ~convertUCHARToDOUBLE(~x~0)) VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L13] assert false; VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L6] ~f~0 := #t~nondet0; [L6] havoc #t~nondet0; [L7] havoc ~d~0; [L8] ~x~0 := #t~nondet1; [L8] havoc #t~nondet1; [L10] ~d~0 := ~f~0; VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L12] COND TRUE ~someBinaryFLOATComparisonOperation(~f~0, ~convertUCHARToFLOAT(~x~0)) VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L13] COND TRUE !~someBinaryDOUBLEComparisonOperation(~d~0, ~convertUCHARToDOUBLE(~x~0)) VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L13] assert false; VAL [~d~0=0.0, ~f~0=0.0, ~x~0=1] [L6] float f = __VERIFIER_nondet_float(); [L7] double d; [L8] unsigned char x = __VERIFIER_nondet_uchar(); [L10] d=f VAL [d=0, f=0, x=1] [L12] COND TRUE f==x VAL [d=0, f=0, x=1] [L13] COND TRUE !(d==x) VAL [d=0, f=0, x=1] [L13] __VERIFIER_error() VAL [d=0, f=0, x=1] ----- [2018-11-23 13:15:52,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:15:52 BoogieIcfgContainer [2018-11-23 13:15:52,699 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:15:52,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:15:52,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:15:52,699 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:15:52,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:15:52" (3/4) ... [2018-11-23 13:15:52,702 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 13:15:52,702 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:15:52,703 INFO L168 Benchmark]: Toolchain (without parser) took 451.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -157.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:15:52,704 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:15:52,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.04 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:15:52,705 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.33 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:15:52,705 INFO L168 Benchmark]: Boogie Preprocessor took 11.52 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:15:52,706 INFO L168 Benchmark]: RCFGBuilder took 136.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 13:15:52,706 INFO L168 Benchmark]: TraceAbstraction took 141.46 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: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2018-11-23 13:15:52,707 INFO L168 Benchmark]: Witness Printer took 3.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:15:52,708 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.04 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 12.33 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.52 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 136.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 141.46 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: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.28 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: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L6] float f = __VERIFIER_nondet_float(); [L7] double d; [L8] unsigned char x = __VERIFIER_nondet_uchar(); [L10] d=f VAL [d=0, f=0, x=1] [L12] COND TRUE f==x VAL [d=0, f=0, x=1] [L13] COND TRUE !(d==x) VAL [d=0, f=0, x=1] [L13] __VERIFIER_error() VAL [d=0, f=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 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=13occurred 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, 8 NumberOfCodeBlocks, 8 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-aa41828 [2018-11-23 13:15:54,123 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:15:54,124 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:15:54,131 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:15:54,132 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:15:54,132 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:15:54,133 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:15:54,134 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:15:54,135 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:15:54,136 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:15:54,136 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:15:54,136 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:15:54,137 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:15:54,138 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:15:54,138 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:15:54,139 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:15:54,140 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:15:54,141 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:15:54,142 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:15:54,143 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:15:54,144 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:15:54,144 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:15:54,146 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:15:54,146 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:15:54,146 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:15:54,147 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:15:54,148 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:15:54,148 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:15:54,149 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:15:54,150 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:15:54,150 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:15:54,150 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:15:54,150 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:15:54,151 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:15:54,151 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:15:54,152 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:15:54,153 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 13:15:54,163 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:15:54,163 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:15:54,164 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:15:54,164 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:15:54,164 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:15:54,164 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:15:54,165 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:15:54,165 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:15:54,165 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:15:54,165 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:15:54,165 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:15:54,165 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:15:54,165 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:15:54,165 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:15:54,165 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 13:15:54,165 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 13:15:54,166 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:15:54,166 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:15:54,166 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:15:54,167 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:15:54,167 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:15:54,167 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:15:54,168 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:15:54,168 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:15:54,168 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:15:54,168 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:15:54,168 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:15:54,168 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:15:54,168 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 13:15:54,168 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:15:54,168 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 13:15:54,168 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 13:15:54,168 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_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c82214860fee184bc373305d606fd208dd65fd42 [2018-11-23 13:15:54,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:15:54,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:15:54,206 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:15:54,207 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:15:54,208 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:15:54,208 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-11-23 13:15:54,243 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/data/290e3e637/41fbbf8a6abf49b48a4a1ae3c80fca79/FLAG48a056258 [2018-11-23 13:15:54,630 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:15:54,631 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-11-23 13:15:54,634 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/data/290e3e637/41fbbf8a6abf49b48a4a1ae3c80fca79/FLAG48a056258 [2018-11-23 13:15:54,642 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/data/290e3e637/41fbbf8a6abf49b48a4a1ae3c80fca79 [2018-11-23 13:15:54,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:15:54,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:15:54,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:15:54,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:15:54,648 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:15:54,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:15:54" (1/1) ... [2018-11-23 13:15:54,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50b7d10a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:54, skipping insertion in model container [2018-11-23 13:15:54,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:15:54" (1/1) ... [2018-11-23 13:15:54,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:15:54,672 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:15:54,787 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:15:54,792 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:15:54,804 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:15:54,815 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:15:54,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:54 WrapperNode [2018-11-23 13:15:54,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:15:54,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:15:54,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:15:54,816 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:15:54,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:54" (1/1) ... [2018-11-23 13:15:54,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:54" (1/1) ... [2018-11-23 13:15:54,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:15:54,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:15:54,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:15:54,834 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:15:54,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:54" (1/1) ... [2018-11-23 13:15:54,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:54" (1/1) ... [2018-11-23 13:15:54,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:54" (1/1) ... [2018-11-23 13:15:54,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:54" (1/1) ... [2018-11-23 13:15:54,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:54" (1/1) ... [2018-11-23 13:15:54,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:54" (1/1) ... [2018-11-23 13:15:54,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:54" (1/1) ... [2018-11-23 13:15:54,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:15:54,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:15:54,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:15:54,852 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:15:54,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:15:54,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:15:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:15:54,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:15:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:15:54,935 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:15:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:15:55,097 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:15:55,097 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 13:15:55,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:15:55 BoogieIcfgContainer [2018-11-23 13:15:55,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:15:55,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:15:55,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:15:55,101 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:15:55,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:15:54" (1/3) ... [2018-11-23 13:15:55,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109e1a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:15:55, skipping insertion in model container [2018-11-23 13:15:55,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:15:54" (2/3) ... [2018-11-23 13:15:55,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109e1a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:15:55, skipping insertion in model container [2018-11-23 13:15:55,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:15:55" (3/3) ... [2018-11-23 13:15:55,103 INFO L112 eAbstractionObserver]: Analyzing ICFG float12_true-unreach-call_true-termination.i [2018-11-23 13:15:55,108 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:15:55,112 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:15:55,121 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:15:55,139 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:15:55,139 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:15:55,139 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:15:55,139 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:15:55,139 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:15:55,140 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:15:55,140 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:15:55,140 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:15:55,140 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:15:55,151 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-23 13:15:55,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 13:15:55,154 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:15:55,155 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:15:55,156 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:15:55,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:55,160 INFO L82 PathProgramCache]: Analyzing trace with hash -689330286, now seen corresponding path program 1 times [2018-11-23 13:15:55,162 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 13:15:55,163 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/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 [2018-11-23 13:15:55,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:15:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:15:55,202 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:15:56,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:15:56,897 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 13:15:56,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:15:56,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:15:56,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 13:15:56,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 13:15:56,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:15:56,916 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2018-11-23 13:15:59,501 WARN L180 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-23 13:15:59,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:15:59,980 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-11-23 13:15:59,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 13:15:59,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-23 13:15:59,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:15:59,995 INFO L225 Difference]: With dead ends: 19 [2018-11-23 13:15:59,995 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 13:15:59,996 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:16:00,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 13:16:00,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 13:16:00,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 13:16:00,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 13:16:00,015 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-11-23 13:16:00,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:16:00,015 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:16:00,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 13:16:00,015 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:16:00,015 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:16:00,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 13:16:00,046 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 13:16:00,046 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:16:00,046 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:16:00,046 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 13:16:00,046 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:16:00,046 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:16:00,047 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 4 14) the Hoare annotation is: true [2018-11-23 13:16:00,047 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 4 14) no Hoare annotation was computed. [2018-11-23 13:16:00,047 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2018-11-23 13:16:00,047 INFO L448 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-11-23 13:16:00,047 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 13) no Hoare annotation was computed. [2018-11-23 13:16:00,047 INFO L448 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2018-11-23 13:16:00,047 INFO L448 ceAbstractionStarter]: For program point L12-1(lines 4 14) no Hoare annotation was computed. [2018-11-23 13:16:00,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:16:00 BoogieIcfgContainer [2018-11-23 13:16:00,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:16:00,051 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:16:00,052 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:16:00,052 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:16:00,052 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:15:55" (3/4) ... [2018-11-23 13:16:00,055 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 13:16:00,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 13:16:00,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 13:16:00,065 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 13:16:00,065 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 13:16:00,065 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 13:16:00,088 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9e5e04db-1110-4b1d-93a0-d4e6f761c4ec/bin-2019/uautomizer/witness.graphml [2018-11-23 13:16:00,089 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:16:00,089 INFO L168 Benchmark]: Toolchain (without parser) took 5444.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 950.8 MB in the beginning and 1.0 GB in the end (delta: -98.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-11-23 13:16:00,089 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:16:00,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.76 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:16:00,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.49 ms. Allocated memory is still 1.0 GB. Free memory is still 940.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:16:00,090 INFO L168 Benchmark]: Boogie Preprocessor took 17.58 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 13:16:00,091 INFO L168 Benchmark]: RCFGBuilder took 245.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-23 13:16:00,091 INFO L168 Benchmark]: TraceAbstraction took 4951.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 11.5 GB. [2018-11-23 13:16:00,092 INFO L168 Benchmark]: Witness Printer took 37.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:16:00,093 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 170.76 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 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 17.49 ms. Allocated memory is still 1.0 GB. Free memory is still 940.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.58 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 245.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4951.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 11.5 GB. * Witness Printer took 37.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 6 SDslu, 15 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 1 QuantifiedInterpolants, 154 SizeOfPredicates, 3 NumberOfNonLiveVariables, 16 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...