./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.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_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c -s /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/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 c91754c7d707a58127a2dc4a18babac51d557647 .................................................................................................................................................................................................................................................................................. 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_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c -s /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/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 c91754c7d707a58127a2dc4a18babac51d557647 ........................................................................................................................................................................................................................................................................................................................................................................ 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 16:10:12,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:10:12,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:10:12,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:10:12,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:10:12,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:10:12,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:10:12,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:10:12,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:10:12,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:10:12,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:10:12,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:10:12,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:10:12,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:10:12,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:10:12,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:10:12,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:10:12,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:10:12,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:10:12,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:10:12,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:10:12,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:10:12,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:10:12,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:10:12,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:10:12,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:10:12,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:10:12,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:10:12,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:10:12,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:10:12,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:10:12,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:10:12,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:10:12,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:10:12,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:10:12,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:10:12,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:10:12,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:10:12,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:10:12,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:10:12,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:10:12,211 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 16:10:12,220 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:10:12,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:10:12,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:10:12,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:10:12,221 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:10:12,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:10:12,222 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:10:12,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:10:12,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:10:12,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:10:12,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:10:12,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:10:12,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:10:12,223 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:10:12,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:10:12,223 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:10:12,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:10:12,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:10:12,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:10:12,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:10:12,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:10:12,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:10:12,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:10:12,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:10:12,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:10:12,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:10:12,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:10:12,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:10:12,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:10:12,225 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_526e8224-0793-4195-8f7e-23d47a61214d/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 -> c91754c7d707a58127a2dc4a18babac51d557647 [2019-12-07 16:10:12,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:10:12,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:10:12,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:10:12,339 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:10:12,339 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:10:12,340 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2019-12-07 16:10:12,383 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/data/5a021cb5c/6d2e702272744fc9819ba439c3ad7c3e/FLAG28f39c64d [2019-12-07 16:10:12,789 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:10:12,789 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2019-12-07 16:10:12,793 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/data/5a021cb5c/6d2e702272744fc9819ba439c3ad7c3e/FLAG28f39c64d [2019-12-07 16:10:12,803 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/data/5a021cb5c/6d2e702272744fc9819ba439c3ad7c3e [2019-12-07 16:10:12,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:10:12,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:10:12,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:10:12,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:10:12,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:10:12,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:10:12" (1/1) ... [2019-12-07 16:10:12,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3260b9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:12, skipping insertion in model container [2019-12-07 16:10:12,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:10:12" (1/1) ... [2019-12-07 16:10:12,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:10:12,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:10:12,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:10:12,996 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:10:13,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:10:13,024 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:10:13,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:13 WrapperNode [2019-12-07 16:10:13,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:10:13,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:10:13,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:10:13,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:10:13,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:13" (1/1) ... [2019-12-07 16:10:13,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:13" (1/1) ... [2019-12-07 16:10:13,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:10:13,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:10:13,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:10:13,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:10:13,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:13" (1/1) ... [2019-12-07 16:10:13,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:13" (1/1) ... [2019-12-07 16:10:13,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:13" (1/1) ... [2019-12-07 16:10:13,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:13" (1/1) ... [2019-12-07 16:10:13,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:13" (1/1) ... [2019-12-07 16:10:13,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:13" (1/1) ... [2019-12-07 16:10:13,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:13" (1/1) ... [2019-12-07 16:10:13,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:10:13,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:10:13,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:10:13,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:10:13,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/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 16:10:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:10:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 16:10:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 16:10:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 16:10:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:10:13,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:10:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 16:10:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:10:13,250 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:10:13,250 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 16:10:13,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:13 BoogieIcfgContainer [2019-12-07 16:10:13,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:10:13,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:10:13,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:10:13,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:10:13,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:10:12" (1/3) ... [2019-12-07 16:10:13,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60203abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:10:13, skipping insertion in model container [2019-12-07 16:10:13,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:13" (2/3) ... [2019-12-07 16:10:13,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60203abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:10:13, skipping insertion in model container [2019-12-07 16:10:13,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:13" (3/3) ... [2019-12-07 16:10:13,255 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2019-12-07 16:10:13,261 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:10:13,265 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:10:13,272 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:10:13,286 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:10:13,287 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:10:13,287 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:10:13,287 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:10:13,287 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:10:13,287 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:10:13,287 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:10:13,287 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:10:13,296 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-12-07 16:10:13,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 16:10:13,299 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:10:13,300 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:10:13,300 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:10:13,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:10:13,304 INFO L82 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2019-12-07 16:10:13,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:10:13,309 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045694389] [2019-12-07 16:10:13,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:10:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:10:13,380 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 16:10:13,381 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045694389] [2019-12-07 16:10:13,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:10:13,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:10:13,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073254115] [2019-12-07 16:10:13,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:10:13,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:10:13,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:10:13,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:10:13,395 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2019-12-07 16:10:13,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:10:13,405 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2019-12-07 16:10:13,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:10:13,406 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 16:10:13,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:10:13,412 INFO L225 Difference]: With dead ends: 32 [2019-12-07 16:10:13,412 INFO L226 Difference]: Without dead ends: 14 [2019-12-07 16:10:13,414 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:10:13,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-07 16:10:13,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-07 16:10:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 16:10:13,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2019-12-07 16:10:13,434 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2019-12-07 16:10:13,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:10:13,434 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2019-12-07 16:10:13,434 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:10:13,434 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2019-12-07 16:10:13,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 16:10:13,435 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:10:13,435 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:10:13,435 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:10:13,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:10:13,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2019-12-07 16:10:13,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:10:13,436 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281765757] [2019-12-07 16:10:13,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:10:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:10:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:10:13,499 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:10:13,499 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:10:13,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:10:13 BoogieIcfgContainer [2019-12-07 16:10:13,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:10:13,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:10:13,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:10:13,517 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:10:13,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:13" (3/4) ... [2019-12-07 16:10:13,520 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:10:13,520 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:10:13,522 INFO L168 Benchmark]: Toolchain (without parser) took 714.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 948.9 MB in the beginning and 1.0 GB in the end (delta: -100.0 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:13,522 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:10:13,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:13,523 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.87 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 16:10:13,523 INFO L168 Benchmark]: Boogie Preprocessor took 17.04 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:13,524 INFO L168 Benchmark]: RCFGBuilder took 184.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:13,524 INFO L168 Benchmark]: TraceAbstraction took 265.44 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:13,524 INFO L168 Benchmark]: Witness Printer took 2.97 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 16:10:13,527 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 216.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.87 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 17.04 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 184.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 265.44 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.97 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: - UnprovableResult [Line: 49]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 33, overapproximation of bitwiseOr at line 26, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L43] float x = 0.0f / 0.0f; [L44] float y = __VERIFIER_nondet_float(); [L13] __uint32_t ix, iy; [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (ix) = gf_u.word [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (y) [L22] EXPR gf_u.word [L22] (iy) = gf_u.word [L25] ieee_float_shape_type sf_u; [L26] sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) [L27] EXPR sf_u.value [L27] (x) = sf_u.value [L29] return x; [L45] float res = copysign_float(x, y); [L33] return x != x; [L48] COND TRUE !isnan_float(res) [L49] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate 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 16:10:14,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:10:14,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:10:14,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:10:14,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:10:14,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:10:14,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:10:14,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:10:14,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:10:14,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:10:14,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:10:14,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:10:14,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:10:14,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:10:14,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:10:14,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:10:14,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:10:14,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:10:14,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:10:14,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:10:14,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:10:14,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:10:14,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:10:14,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:10:14,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:10:14,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:10:14,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:10:14,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:10:14,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:10:14,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:10:14,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:10:14,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:10:14,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:10:14,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:10:14,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:10:14,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:10:14,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:10:14,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:10:14,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:10:14,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:10:14,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:10:14,900 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 16:10:14,910 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:10:14,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:10:14,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:10:14,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:10:14,912 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:10:14,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:10:14,912 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:10:14,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:10:14,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:10:14,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:10:14,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:10:14,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:10:14,913 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:10:14,913 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:10:14,913 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:10:14,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:10:14,914 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:10:14,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:10:14,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:10:14,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:10:14,914 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:10:14,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:10:14,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:10:14,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:10:14,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:10:14,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:10:14,915 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 16:10:14,915 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:10:14,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:10:14,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:10:14,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:10:14,916 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_526e8224-0793-4195-8f7e-23d47a61214d/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 -> c91754c7d707a58127a2dc4a18babac51d557647 [2019-12-07 16:10:15,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:10:15,091 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:10:15,094 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:10:15,096 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:10:15,096 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:10:15,097 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2019-12-07 16:10:15,141 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/data/13c50981c/2de11289a09d4fe2a3c9cdd18ea3f819/FLAG17e4d6f64 [2019-12-07 16:10:15,526 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:10:15,527 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2019-12-07 16:10:15,531 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/data/13c50981c/2de11289a09d4fe2a3c9cdd18ea3f819/FLAG17e4d6f64 [2019-12-07 16:10:15,909 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/data/13c50981c/2de11289a09d4fe2a3c9cdd18ea3f819 [2019-12-07 16:10:15,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:10:15,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:10:15,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:10:15,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:10:15,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:10:15,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:10:15" (1/1) ... [2019-12-07 16:10:15,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702a8360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:15, skipping insertion in model container [2019-12-07 16:10:15,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:10:15" (1/1) ... [2019-12-07 16:10:15,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:10:15,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:10:16,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:10:16,052 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:10:16,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:10:16,082 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:10:16,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:16 WrapperNode [2019-12-07 16:10:16,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:10:16,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:10:16,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:10:16,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:10:16,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:16" (1/1) ... [2019-12-07 16:10:16,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:16" (1/1) ... [2019-12-07 16:10:16,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:10:16,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:10:16,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:10:16,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:10:16,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:16" (1/1) ... [2019-12-07 16:10:16,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:16" (1/1) ... [2019-12-07 16:10:16,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:16" (1/1) ... [2019-12-07 16:10:16,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:16" (1/1) ... [2019-12-07 16:10:16,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:16" (1/1) ... [2019-12-07 16:10:16,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:16" (1/1) ... [2019-12-07 16:10:16,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:16" (1/1) ... [2019-12-07 16:10:16,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:10:16,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:10:16,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:10:16,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:10:16,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/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 16:10:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:10:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 16:10:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 16:10:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:10:16,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:10:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 16:10:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 16:10:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:10:16,369 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:10:16,369 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 16:10:16,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:16 BoogieIcfgContainer [2019-12-07 16:10:16,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:10:16,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:10:16,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:10:16,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:10:16,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:10:15" (1/3) ... [2019-12-07 16:10:16,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e78294a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:10:16, skipping insertion in model container [2019-12-07 16:10:16,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:16" (2/3) ... [2019-12-07 16:10:16,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e78294a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:10:16, skipping insertion in model container [2019-12-07 16:10:16,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:16" (3/3) ... [2019-12-07 16:10:16,375 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2019-12-07 16:10:16,381 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:10:16,385 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:10:16,392 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:10:16,405 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:10:16,406 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:10:16,406 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:10:16,406 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:10:16,406 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:10:16,406 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:10:16,406 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:10:16,406 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:10:16,414 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-12-07 16:10:16,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 16:10:16,418 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:10:16,419 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:10:16,419 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:10:16,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:10:16,423 INFO L82 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2019-12-07 16:10:16,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:10:16,432 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478142181] [2019-12-07 16:10:16,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/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 16:10:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:10:16,485 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 16:10:16,488 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:10:16,496 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 16:10:16,497 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:10:16,499 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 16:10:16,500 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478142181] [2019-12-07 16:10:16,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:10:16,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 16:10:16,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396547892] [2019-12-07 16:10:16,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:10:16,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:10:16,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:10:16,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:10:16,514 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2019-12-07 16:10:16,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:10:16,524 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2019-12-07 16:10:16,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:10:16,525 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 16:10:16,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:10:16,531 INFO L225 Difference]: With dead ends: 32 [2019-12-07 16:10:16,531 INFO L226 Difference]: Without dead ends: 14 [2019-12-07 16:10:16,533 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:10:16,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-07 16:10:16,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-07 16:10:16,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 16:10:16,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2019-12-07 16:10:16,554 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2019-12-07 16:10:16,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:10:16,554 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2019-12-07 16:10:16,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:10:16,555 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2019-12-07 16:10:16,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 16:10:16,555 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:10:16,555 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:10:16,756 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:10:16,756 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:10:16,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:10:16,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2019-12-07 16:10:16,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:10:16,760 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998426413] [2019-12-07 16:10:16,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/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 16:10:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:10:16,845 INFO L264 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-07 16:10:16,847 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:10:16,930 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:10:16,972 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 16:10:16,972 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:10:17,092 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 16:10:17,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998426413] [2019-12-07 16:10:17,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:10:17,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2019-12-07 16:10:17,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994485225] [2019-12-07 16:10:17,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 16:10:17,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:10:17,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 16:10:17,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-12-07 16:10:17,095 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 12 states. [2019-12-07 16:10:17,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:10:17,491 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2019-12-07 16:10:17,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 16:10:17,491 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2019-12-07 16:10:17,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:10:17,491 INFO L225 Difference]: With dead ends: 14 [2019-12-07 16:10:17,492 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 16:10:17,493 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2019-12-07 16:10:17,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 16:10:17,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 16:10:17,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 16:10:17,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:10:17,493 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-12-07 16:10:17,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:10:17,493 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:10:17,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 16:10:17,494 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:10:17,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 16:10:17,694 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 16:10:17,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 16:10:17,815 INFO L242 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_copysign_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_copysign_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_copysign_float_~ix~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_copysign_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (not (fp.eq |ULTIMATE.start_copysign_float_#res| |ULTIMATE.start_copysign_float_#res|))) [2019-12-07 16:10:17,815 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 16:10:17,816 INFO L242 CegarLoopResult]: At program point L29(lines 12 30) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_copysign_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_copysign_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_copysign_float_~ix~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_copysign_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (not (fp.eq |ULTIMATE.start_copysign_float_#res| |ULTIMATE.start_copysign_float_#res|))) [2019-12-07 16:10:17,816 INFO L246 CegarLoopResult]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-12-07 16:10:17,816 INFO L246 CegarLoopResult]: For program point L19-1(lines 12 30) no Hoare annotation was computed. [2019-12-07 16:10:17,816 INFO L246 CegarLoopResult]: For program point L48(lines 48 51) no Hoare annotation was computed. [2019-12-07 16:10:17,816 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 16:10:17,816 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 16:10:17,816 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 16:10:17,816 INFO L246 CegarLoopResult]: For program point L24(lines 24 28) no Hoare annotation was computed. [2019-12-07 16:10:17,816 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 49) no Hoare annotation was computed. [2019-12-07 16:10:17,817 INFO L246 CegarLoopResult]: For program point L24-1(lines 12 30) no Hoare annotation was computed. [2019-12-07 16:10:17,817 INFO L246 CegarLoopResult]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2019-12-07 16:10:17,817 INFO L249 CegarLoopResult]: At program point L53(lines 35 54) the Hoare annotation is: true [2019-12-07 16:10:17,817 INFO L246 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2019-12-07 16:10:17,817 INFO L246 CegarLoopResult]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2019-12-07 16:10:17,817 INFO L242 CegarLoopResult]: At program point L14-2(lines 14 18) the Hoare annotation is: (not (fp.eq ULTIMATE.start_copysign_float_~x ULTIMATE.start_copysign_float_~x)) [2019-12-07 16:10:17,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 16:10:17,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 16:10:17,827 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 16:10:17,828 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 16:10:17,829 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 16:10:17,829 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 16:10:17,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 16:10:17,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 16:10:17,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:10:17 BoogieIcfgContainer [2019-12-07 16:10:17,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:10:17,832 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:10:17,832 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:10:17,832 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:10:17,833 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:16" (3/4) ... [2019-12-07 16:10:17,836 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 16:10:17,844 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 16:10:17,844 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 16:10:17,844 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 16:10:17,871 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_526e8224-0793-4195-8f7e-23d47a61214d/bin/uautomizer/witness.graphml [2019-12-07 16:10:17,871 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:10:17,872 INFO L168 Benchmark]: Toolchain (without parser) took 1958.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 952.4 MB in the beginning and 984.8 MB in the end (delta: -32.5 MB). Peak memory consumption was 80.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:17,872 INFO L168 Benchmark]: CDTParser took 0.18 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 16:10:17,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.12 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 16:10:17,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:17,874 INFO L168 Benchmark]: Boogie Preprocessor took 25.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:17,874 INFO L168 Benchmark]: RCFGBuilder took 206.20 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:17,875 INFO L168 Benchmark]: TraceAbstraction took 1460.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 984.8 MB in the end (delta: 97.7 MB). Peak memory consumption was 97.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:17,875 INFO L168 Benchmark]: Witness Printer took 38.95 ms. Allocated memory is still 1.1 GB. Free memory is still 984.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:10:17,877 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 169.12 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 54.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 206.20 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1460.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 984.8 MB in the end (delta: 97.7 MB). Peak memory consumption was 97.7 MB. Max. memory is 11.5 GB. * Witness Printer took 38.95 ms. Allocated memory is still 1.1 GB. Free memory is still 984.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: 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: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant [2019-12-07 16:10:17,882 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 16:10:17,883 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 16:10:17,883 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 16:10:17,883 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && !~fp.eq~FLOAT(\result, \result) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(x, x) - InvariantResult [Line: 12]: Loop Invariant [2019-12-07 16:10:17,884 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 16:10:17,884 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 16:10:17,885 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 16:10:17,885 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && !~fp.eq~FLOAT(\result, \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 22 SDtfs, 14 SDslu, 24 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 58 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 42 ConstructedInterpolants, 12 QuantifiedInterpolants, 4098 SizeOfPredicates, 15 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 15 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! Received shutdown request...