./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_tight.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7de8352890f1d55270cdee8daa00c3bfaf4226ea .......................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7de8352890f1d55270cdee8daa00c3bfaf4226ea ....................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:59:59,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:59:59,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:59:59,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:59:59,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:59:59,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:59:59,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:59:59,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:59:59,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:59:59,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:59:59,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:59:59,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:59:59,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:59:59,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:59:59,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:59:59,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:59:59,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:59:59,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:59:59,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:59:59,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:59:59,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:59:59,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:59:59,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:59:59,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:59:59,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:59:59,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:59:59,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:59:59,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:59:59,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:59:59,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:59:59,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:59:59,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:59:59,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:59:59,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:59:59,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:59:59,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:59:59,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:59:59,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:59:59,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:59:59,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:59:59,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:59:59,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:59:59,326 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:59:59,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:59:59,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:59:59,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:59:59,327 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:59:59,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:59:59,328 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:59:59,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:59:59,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:59:59,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:59:59,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:59:59,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:59:59,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:59:59,329 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:59:59,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:59:59,329 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:59:59,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:59:59,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:59:59,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:59:59,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:59:59,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:59:59,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:59:59,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:59:59,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:59:59,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:59:59,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:59:59,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:59:59,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:59:59,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:59:59,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2019-12-07 18:59:59,427 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:59:59,435 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:59:59,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:59:59,438 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:59:59,439 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:59:59,439 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/../../sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-12-07 18:59:59,477 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/data/90ae16e22/19ffa1649d6f460f947d99d186a5d90e/FLAGfcf349ccc [2019-12-07 18:59:59,870 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:59:59,871 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-12-07 18:59:59,875 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/data/90ae16e22/19ffa1649d6f460f947d99d186a5d90e/FLAGfcf349ccc [2019-12-07 18:59:59,883 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/data/90ae16e22/19ffa1649d6f460f947d99d186a5d90e [2019-12-07 18:59:59,885 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:59:59,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:59:59,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:59:59,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:59:59,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:59:59,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:59:59" (1/1) ... [2019-12-07 18:59:59,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aaa2f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:59:59, skipping insertion in model container [2019-12-07 18:59:59,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:59:59" (1/1) ... [2019-12-07 18:59:59,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:59:59,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:00:00,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:00:00,006 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:00:00,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:00:00,065 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:00:00,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:00 WrapperNode [2019-12-07 19:00:00,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:00:00,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:00:00,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:00:00,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:00:00,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:00" (1/1) ... [2019-12-07 19:00:00,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:00" (1/1) ... [2019-12-07 19:00:00,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:00:00,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:00:00,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:00:00,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:00:00,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:00" (1/1) ... [2019-12-07 19:00:00,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:00" (1/1) ... [2019-12-07 19:00:00,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:00" (1/1) ... [2019-12-07 19:00:00,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:00" (1/1) ... [2019-12-07 19:00:00,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:00" (1/1) ... [2019-12-07 19:00:00,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:00" (1/1) ... [2019-12-07 19:00:00,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:00" (1/1) ... [2019-12-07 19:00:00,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:00:00,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:00:00,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:00:00,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:00:00,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:00:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:00:00,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:00:00,247 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:00:00,247 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 19:00:00,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:00:00 BoogieIcfgContainer [2019-12-07 19:00:00,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:00:00,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:00:00,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:00:00,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:00:00,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:59:59" (1/3) ... [2019-12-07 19:00:00,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e851008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:00:00, skipping insertion in model container [2019-12-07 19:00:00,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:00" (2/3) ... [2019-12-07 19:00:00,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e851008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:00:00, skipping insertion in model container [2019-12-07 19:00:00,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:00:00" (3/3) ... [2019-12-07 19:00:00,253 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c [2019-12-07 19:00:00,260 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:00:00,264 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 19:00:00,273 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 19:00:00,288 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:00:00,288 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:00:00,288 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:00:00,288 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:00:00,288 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:00:00,288 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:00:00,288 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:00:00,288 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:00:00,298 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-12-07 19:00:00,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 19:00:00,301 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:00:00,302 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 19:00:00,302 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:00:00,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:00:00,306 INFO L82 PathProgramCache]: Analyzing trace with hash 29679878, now seen corresponding path program 1 times [2019-12-07 19:00:00,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 19:00:00,312 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97910601] [2019-12-07 19:00:00,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:00:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:00:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:00:00,388 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 19:00:00,388 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 19:00:00,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:00:00 BoogieIcfgContainer [2019-12-07 19:00:00,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:00:00,399 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:00:00,399 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:00:00,399 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:00:00,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:00:00" (3/4) ... [2019-12-07 19:00:00,402 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 19:00:00,402 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:00:00,404 INFO L168 Benchmark]: Toolchain (without parser) took 517.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -125.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:00:00,404 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:00:00,405 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -157.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:00:00,405 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:00:00,405 INFO L168 Benchmark]: Boogie Preprocessor took 11.49 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:00:00,406 INFO L168 Benchmark]: RCFGBuilder took 148.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2019-12-07 19:00:00,406 INFO L168 Benchmark]: TraceAbstraction took 150.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:00:00,407 INFO L168 Benchmark]: Witness Printer took 3.01 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:00:00,409 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 179.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -157.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.49 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 148.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 150.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.01 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 19. Possible FailurePath: [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x [L19] COND TRUE y >= 0 [L19] y = x / 10. [L9] COND TRUE !(cond) [L9] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 19:00:01,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:00:01,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:00:01,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:00:01,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:00:01,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:00:01,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:00:01,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:00:01,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:00:01,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:00:01,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:00:01,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:00:01,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:00:01,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:00:01,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:00:01,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:00:01,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:00:01,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:00:01,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:00:01,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:00:01,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:00:01,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:00:01,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:00:01,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:00:01,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:00:01,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:00:01,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:00:01,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:00:01,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:00:01,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:00:01,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:00:01,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:00:01,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:00:01,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:00:01,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:00:01,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:00:01,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:00:01,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:00:01,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:00:01,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:00:01,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:00:01,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 19:00:01,868 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:00:01,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:00:01,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 19:00:01,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 19:00:01,869 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 19:00:01,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:00:01,869 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:00:01,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:00:01,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:00:01,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:00:01,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:00:01,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:00:01,870 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 19:00:01,870 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 19:00:01,870 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:00:01,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:00:01,871 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:00:01,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:00:01,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:00:01,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 19:00:01,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:00:01,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:00:01,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:00:01,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:00:01,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:00:01,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:00:01,872 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 19:00:01,872 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 19:00:01,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:00:01,872 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:00:01,872 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:00:01,873 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2019-12-07 19:00:02,033 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:00:02,041 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:00:02,043 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:00:02,044 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:00:02,045 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:00:02,045 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/../../sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-12-07 19:00:02,083 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/data/5a717bd4d/b4492b2c27e443169b28e2df44def29e/FLAG59e59b886 [2019-12-07 19:00:02,466 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:00:02,467 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-12-07 19:00:02,470 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/data/5a717bd4d/b4492b2c27e443169b28e2df44def29e/FLAG59e59b886 [2019-12-07 19:00:02,836 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/data/5a717bd4d/b4492b2c27e443169b28e2df44def29e [2019-12-07 19:00:02,838 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:00:02,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:00:02,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:00:02,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:00:02,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:00:02,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:00:02" (1/1) ... [2019-12-07 19:00:02,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f8af92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:02, skipping insertion in model container [2019-12-07 19:00:02,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:00:02" (1/1) ... [2019-12-07 19:00:02,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:00:02,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:00:02,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:00:02,957 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:00:02,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:00:02,977 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:00:02,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:02 WrapperNode [2019-12-07 19:00:02,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:00:02,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:00:02,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:00:02,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:00:02,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:02" (1/1) ... [2019-12-07 19:00:02,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:02" (1/1) ... [2019-12-07 19:00:02,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:00:02,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:00:02,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:00:02,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:00:03,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:02" (1/1) ... [2019-12-07 19:00:03,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:02" (1/1) ... [2019-12-07 19:00:03,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:02" (1/1) ... [2019-12-07 19:00:03,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:02" (1/1) ... [2019-12-07 19:00:03,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:02" (1/1) ... [2019-12-07 19:00:03,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:02" (1/1) ... [2019-12-07 19:00:03,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:02" (1/1) ... [2019-12-07 19:00:03,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:00:03,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:00:03,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:00:03,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:00:03,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:00:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:00:03,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:00:04,728 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:00:04,728 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 19:00:04,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:00:04 BoogieIcfgContainer [2019-12-07 19:00:04,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:00:04,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:00:04,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:00:04,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:00:04,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:00:02" (1/3) ... [2019-12-07 19:00:04,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d85cd52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:00:04, skipping insertion in model container [2019-12-07 19:00:04,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:00:02" (2/3) ... [2019-12-07 19:00:04,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d85cd52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:00:04, skipping insertion in model container [2019-12-07 19:00:04,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:00:04" (3/3) ... [2019-12-07 19:00:04,735 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c [2019-12-07 19:00:04,741 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:00:04,745 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 19:00:04,753 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 19:00:04,770 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:00:04,770 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:00:04,770 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:00:04,770 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:00:04,770 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:00:04,770 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:00:04,770 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:00:04,770 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:00:04,780 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-12-07 19:00:04,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 19:00:04,784 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:00:04,784 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 19:00:04,784 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:00:04,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:00:04,788 INFO L82 PathProgramCache]: Analyzing trace with hash 889508713, now seen corresponding path program 1 times [2019-12-07 19:00:04,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 19:00:04,795 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058384161] [2019-12-07 19:00:04,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/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 [2019-12-07 19:00:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:00:05,243 WARN L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 19:00:05,248 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:00:08,285 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (= (fp.div c_currentRoundingMode ULTIMATE.start_main_~x~0 .cse0) c_ULTIMATE.start_main_~y~0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-12-07 19:00:08,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 19:00:10,504 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 19:00:23,153 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 .cse0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53))))) .cse1) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and .cse1 (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse2) (_ +zero 11 53))) (fp.leq ULTIMATE.start_main_~x~0 .cse2) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)))))))) is different from false [2019-12-07 19:00:34,446 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_1 .cse0) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53))))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 .cse1) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)))))) is different from false [2019-12-07 19:00:36,634 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_1 .cse0) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53))))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 .cse1) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)))))) is different from true [2019-12-07 19:00:36,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:00:36,637 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:00:58,548 WARN L192 SmtUtils]: Spent 8.92 s on a formula simplification that was a NOOP. DAG size: 11 [2019-12-07 19:00:58,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 19:01:00,740 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse0)) (fp.geq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse0) (_ +zero 11 53)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53)))))) (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse1)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse1) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53))))))) is different from false [2019-12-07 19:01:03,152 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse0)) (fp.geq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse0) (_ +zero 11 53)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53)))))) (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse1)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse1) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53))))))) is different from true [2019-12-07 19:01:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:01:03,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058384161] [2019-12-07 19:01:03,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:01:03,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2019-12-07 19:01:03,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748617138] [2019-12-07 19:01:03,160 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 19:01:03,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 19:01:03,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 19:01:03,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=30, Unknown=8, NotChecked=52, Total=110 [2019-12-07 19:01:03,172 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 11 states. [2019-12-07 19:01:07,556 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse0)) (fp.geq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse0) (_ +zero 11 53)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53)))))) (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse1)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse1) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-12-07 19:01:09,977 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse0)) (fp.geq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse0) (_ +zero 11 53)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53)))))) (forall ((v_ULTIMATE.start_main_~x~0_8 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_8 .cse1)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_8 .cse1) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_8 (_ +zero 11 53)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-12-07 19:01:12,201 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 .cse1))) (and (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.leq c_ULTIMATE.start_main_~x~0 .cse1) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2019-12-07 19:01:14,418 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 .cse1))) (and (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.leq c_ULTIMATE.start_main_~x~0 .cse1) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2019-12-07 19:01:47,417 WARN L192 SmtUtils]: Spent 25.42 s on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2019-12-07 19:02:08,384 WARN L192 SmtUtils]: Spent 11.63 s on a formula simplification. DAG size of input: 35 DAG size of output: 15 [2019-12-07 19:02:16,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:02:16,634 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-12-07 19:02:16,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 19:02:16,636 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 6 [2019-12-07 19:02:16,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:02:16,641 INFO L225 Difference]: With dead ends: 23 [2019-12-07 19:02:16,642 INFO L226 Difference]: Without dead ends: 7 [2019-12-07 19:02:16,644 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 102.1s TimeCoverageRelationStatistics Valid=39, Invalid=57, Unknown=18, NotChecked=126, Total=240 [2019-12-07 19:02:16,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-12-07 19:02:16,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-07 19:02:16,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 19:02:16,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2019-12-07 19:02:16,669 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2019-12-07 19:02:16,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:02:16,669 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2019-12-07 19:02:16,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 19:02:16,669 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2019-12-07 19:02:16,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 19:02:16,670 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:02:16,670 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 19:02:16,871 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 19:02:16,872 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:02:16,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:02:16,873 INFO L82 PathProgramCache]: Analyzing trace with hash 889568295, now seen corresponding path program 1 times [2019-12-07 19:02:16,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 19:02:16,874 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759577412] [2019-12-07 19:02:16,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 19:02:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:02:17,298 WARN L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 19:02:17,299 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:02:19,350 WARN L838 $PredicateComparison]: unable to prove that (and (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven) (= (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~y~0)) is different from false [2019-12-07 19:02:33,251 WARN L192 SmtUtils]: Spent 9.82 s on a formula simplification that was a NOOP. DAG size: 23 [2019-12-07 19:02:33,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 19:02:35,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 19:02:48,883 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse1) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.geq .cse2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse1))) is different from false [2019-12-07 19:02:59,220 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_2 v_prenex_2))) (and (fp.geq v_prenex_2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_2) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq v_prenex_2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))))) is different from false [2019-12-07 19:03:01,269 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_2 v_prenex_2))) (and (fp.geq v_prenex_2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_2) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq v_prenex_2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))))) is different from true [2019-12-07 19:03:01,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:03:01,270 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:03:30,801 WARN L192 SmtUtils]: Spent 16.11 s on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2019-12-07 19:03:32,847 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~x~0_9))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_9) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from false [2019-12-07 19:03:34,905 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~x~0_9))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_9) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from true [2019-12-07 19:03:34,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:03:34,906 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759577412] [2019-12-07 19:03:34,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:03:34,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2019-12-07 19:03:34,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010756158] [2019-12-07 19:03:34,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 19:03:34,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 19:03:34,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 19:03:34,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=27, Unknown=10, NotChecked=52, Total=110 [2019-12-07 19:03:34,909 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand 11 states. [2019-12-07 19:03:38,357 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~x~0_9))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_9) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-12-07 19:03:40,411 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 v_ULTIMATE.start_main_~x~0_9))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_9) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-12-07 19:03:42,473 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (and (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven) (= (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~y~0))) is different from false [2019-12-07 19:03:44,526 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (and (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven) (= (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~y~0))) is different from true [2019-12-07 19:03:46,586 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (= c_ULTIMATE.start_main_~y~0 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (not (fp.geq (fp.sub c_currentRoundingMode .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))))) (fp.leq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq c_ULTIMATE.start_main_~y~0 (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-12-07 19:03:48,647 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (not .cse0) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse0) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.geq .cse2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse0)))) is different from false [2019-12-07 19:03:48,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:03:48,652 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-12-07 19:03:48,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 19:03:48,653 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 6 [2019-12-07 19:03:48,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:03:48,653 INFO L225 Difference]: With dead ends: 7 [2019-12-07 19:03:48,653 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 19:03:48,654 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 68.2s TimeCoverageRelationStatistics Valid=29, Invalid=29, Unknown=16, NotChecked=136, Total=210 [2019-12-07 19:03:48,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 19:03:48,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 19:03:48,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 19:03:48,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 19:03:48,655 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-12-07 19:03:48,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:03:48,655 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 19:03:48,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 19:03:48,656 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 19:03:48,656 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 19:03:48,857 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 19:03:48,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 19:03:48,901 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 19:03:48,901 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 19:03:48,901 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 19:03:48,901 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 19:03:48,901 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-12-07 19:03:48,901 INFO L242 CegarLoopResult]: At program point L23(lines 11 24) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-12-07 19:03:48,902 INFO L246 CegarLoopResult]: For program point L19(lines 19 20) no Hoare annotation was computed. [2019-12-07 19:03:48,902 INFO L246 CegarLoopResult]: For program point L19-2(lines 19 20) no Hoare annotation was computed. [2019-12-07 19:03:48,902 INFO L246 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2019-12-07 19:03:48,902 INFO L246 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2019-12-07 19:03:48,902 INFO L242 CegarLoopResult]: At program point L9-3(line 9) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-12-07 19:03:48,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:03:48 BoogieIcfgContainer [2019-12-07 19:03:48,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:03:48,912 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:03:48,912 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:03:48,912 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:03:48,912 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:00:04" (3/4) ... [2019-12-07 19:03:48,914 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 19:03:48,921 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 19:03:48,921 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 19:03:48,921 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 19:03:48,947 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ba3982a3-382b-416f-9865-a9d315f21aaf/bin/uautomizer/witness.graphml [2019-12-07 19:03:48,947 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:03:48,948 INFO L168 Benchmark]: Toolchain (without parser) took 226109.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -53.0 MB). Peak memory consumption was 60.2 MB. Max. memory is 11.5 GB. [2019-12-07 19:03:48,948 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:03:48,949 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.15 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 19:03:48,949 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.11 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:03:48,949 INFO L168 Benchmark]: Boogie Preprocessor took 41.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2019-12-07 19:03:48,950 INFO L168 Benchmark]: RCFGBuilder took 1687.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-12-07 19:03:48,950 INFO L168 Benchmark]: TraceAbstraction took 224181.41 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: 77.5 MB). Peak memory consumption was 77.5 MB. Max. memory is 11.5 GB. [2019-12-07 19:03:48,950 INFO L168 Benchmark]: Witness Printer took 35.56 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. [2019-12-07 19:03:48,952 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.15 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 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 21.11 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1687.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 224181.41 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: 77.5 MB). Peak memory consumption was 77.5 MB. Max. memory is 11.5 GB. * Witness Printer took 35.56 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: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: SAFE, OverallTime: 224.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 87.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 17 SDslu, 26 SDs, 0 SdLazy, 15 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 135.5s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 8 QuantifiedInterpolants, 2700 SizeOfPredicates, 10 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...