./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.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_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/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 5cd93119259b478e9ace2ae93fde799beac44478 ............................................................................................................................................................................................................................................................................................. 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_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/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 5cd93119259b478e9ace2ae93fde799beac44478 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 15:20:42,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:20:42,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:20:42,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:20:42,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:20:42,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:20:42,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:20:42,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:20:42,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:20:42,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:20:42,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:20:42,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:20:42,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:20:42,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:20:42,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:20:42,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:20:42,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:20:42,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:20:42,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:20:42,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:20:42,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:20:42,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:20:42,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:20:42,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:20:42,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:20:42,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:20:42,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:20:42,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:20:42,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:20:42,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:20:42,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:20:42,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:20:42,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:20:42,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:20:42,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:20:42,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:20:42,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:20:42,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:20:42,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:20:42,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:20:42,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:20:42,379 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 15:20:42,388 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:20:42,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:20:42,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:20:42,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:20:42,389 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:20:42,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:20:42,389 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:20:42,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:20:42,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:20:42,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:20:42,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:20:42,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:20:42,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:20:42,390 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:20:42,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:20:42,390 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:20:42,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:20:42,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:20:42,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:20:42,391 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:20:42,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:20:42,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:20:42,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:20:42,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:20:42,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:20:42,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:20:42,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:20:42,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:20:42,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:20:42,392 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_487984ae-4b2e-43d6-9260-43b8b6a43ed0/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 -> 5cd93119259b478e9ace2ae93fde799beac44478 [2019-12-07 15:20:42,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:20:42,504 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:20:42,506 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:20:42,508 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:20:42,508 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:20:42,508 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-12-07 15:20:42,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/data/bfbc7e614/e8916b95dc4140df9fe6b7865b4a574a/FLAGf148d1032 [2019-12-07 15:20:43,020 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:20:43,021 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-12-07 15:20:43,026 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/data/bfbc7e614/e8916b95dc4140df9fe6b7865b4a574a/FLAGf148d1032 [2019-12-07 15:20:43,034 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/data/bfbc7e614/e8916b95dc4140df9fe6b7865b4a574a [2019-12-07 15:20:43,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:20:43,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:20:43,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:20:43,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:20:43,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:20:43,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:20:43" (1/1) ... [2019-12-07 15:20:43,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d678433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:43, skipping insertion in model container [2019-12-07 15:20:43,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:20:43" (1/1) ... [2019-12-07 15:20:43,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:20:43,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:20:43,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:20:43,217 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:20:43,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:20:43,253 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:20:43,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:43 WrapperNode [2019-12-07 15:20:43,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:20:43,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:20:43,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:20:43,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:20:43,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:43" (1/1) ... [2019-12-07 15:20:43,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:43" (1/1) ... [2019-12-07 15:20:43,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:20:43,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:20:43,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:20:43,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:20:43,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:43" (1/1) ... [2019-12-07 15:20:43,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:43" (1/1) ... [2019-12-07 15:20:43,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:43" (1/1) ... [2019-12-07 15:20:43,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:43" (1/1) ... [2019-12-07 15:20:43,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:43" (1/1) ... [2019-12-07 15:20:43,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:43" (1/1) ... [2019-12-07 15:20:43,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:43" (1/1) ... [2019-12-07 15:20:43,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:20:43,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:20:43,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:20:43,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:20:43,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/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 15:20:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:20:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:20:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 15:20:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 15:20:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:20:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:20:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:20:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 15:20:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:20:43,574 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:20:43,574 INFO L287 CfgBuilder]: Removed 20 assume(true) statements. [2019-12-07 15:20:43,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:20:43 BoogieIcfgContainer [2019-12-07 15:20:43,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:20:43,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:20:43,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:20:43,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:20:43,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:20:43" (1/3) ... [2019-12-07 15:20:43,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e87a682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:20:43, skipping insertion in model container [2019-12-07 15:20:43,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:43" (2/3) ... [2019-12-07 15:20:43,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e87a682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:20:43, skipping insertion in model container [2019-12-07 15:20:43,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:20:43" (3/3) ... [2019-12-07 15:20:43,581 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2019-12-07 15:20:43,587 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:20:43,592 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:20:43,599 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:20:43,613 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:20:43,614 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:20:43,614 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:20:43,614 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:20:43,614 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:20:43,614 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:20:43,614 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:20:43,614 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:20:43,624 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-12-07 15:20:43,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 15:20:43,628 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:20:43,628 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:20:43,628 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:20:43,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:20:43,632 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-12-07 15:20:43,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:20:43,638 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174121726] [2019-12-07 15:20:43,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:20:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:20:43,724 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 15:20:43,724 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174121726] [2019-12-07 15:20:43,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:20:43,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:20:43,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87105938] [2019-12-07 15:20:43,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:20:43,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:20:43,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:20:43,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:20:43,738 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-12-07 15:20:43,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:20:43,751 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-12-07 15:20:43,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:20:43,752 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 15:20:43,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:20:43,759 INFO L225 Difference]: With dead ends: 82 [2019-12-07 15:20:43,759 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 15:20:43,762 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 15:20:43,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 15:20:43,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 15:20:43,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 15:20:43,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-12-07 15:20:43,785 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-12-07 15:20:43,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:20:43,785 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-12-07 15:20:43,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:20:43,786 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-12-07 15:20:43,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 15:20:43,786 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:20:43,786 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:20:43,786 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:20:43,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:20:43,787 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-12-07 15:20:43,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:20:43,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572684727] [2019-12-07 15:20:43,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:20:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:20:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:20:43,868 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:20:43,868 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:20:43,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:20:43 BoogieIcfgContainer [2019-12-07 15:20:43,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:20:43,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:20:43,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:20:43,889 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:20:43,889 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:20:43" (3/4) ... [2019-12-07 15:20:43,892 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:20:43,892 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:20:43,893 INFO L168 Benchmark]: Toolchain (without parser) took 855.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 940.8 MB in the beginning and 1.0 GB in the end (delta: -76.7 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:20:43,893 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:20:43,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -150.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:20:43,894 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.14 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 15:20:43,895 INFO L168 Benchmark]: Boogie Preprocessor took 22.54 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 15:20:43,895 INFO L168 Benchmark]: RCFGBuilder took 268.17 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:20:43,895 INFO L168 Benchmark]: TraceAbstraction took 312.99 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:20:43,896 INFO L168 Benchmark]: Witness Printer took 2.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:20:43,898 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 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 215.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -150.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.14 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. * Boogie Preprocessor took 22.54 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 268.17 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 312.99 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 123]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryArithmeticFLOAToperation at line 35, overapproximation of bitwiseXor at line 31. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={3:0}] [L117] float x = 1.0f / 0.0f; [L118] float y = __VERIFIER_nondet_float(); [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={3:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L119] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={3:0}] [L122] COND TRUE !isnan_float(res) [L123] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 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=42occurred 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, 22 NumberOfCodeBlocks, 22 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 15:20:45,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:20:45,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:20:45,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:20:45,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:20:45,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:20:45,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:20:45,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:20:45,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:20:45,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:20:45,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:20:45,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:20:45,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:20:45,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:20:45,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:20:45,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:20:45,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:20:45,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:20:45,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:20:45,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:20:45,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:20:45,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:20:45,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:20:45,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:20:45,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:20:45,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:20:45,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:20:45,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:20:45,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:20:45,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:20:45,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:20:45,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:20:45,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:20:45,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:20:45,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:20:45,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:20:45,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:20:45,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:20:45,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:20:45,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:20:45,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:20:45,274 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 15:20:45,287 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:20:45,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:20:45,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:20:45,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:20:45,288 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:20:45,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:20:45,288 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:20:45,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:20:45,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:20:45,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:20:45,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:20:45,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:20:45,289 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:20:45,289 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:20:45,290 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:20:45,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:20:45,290 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:20:45,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:20:45,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:20:45,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:20:45,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:20:45,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:20:45,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:20:45,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:20:45,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:20:45,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:20:45,291 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 15:20:45,291 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:20:45,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:20:45,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:20:45,292 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:20:45,292 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_487984ae-4b2e-43d6-9260-43b8b6a43ed0/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 -> 5cd93119259b478e9ace2ae93fde799beac44478 [2019-12-07 15:20:45,454 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:20:45,461 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:20:45,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:20:45,464 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:20:45,465 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:20:45,465 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-12-07 15:20:45,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/data/8d7911c0f/e15da7d6598641e0aebe9b86b3860c3a/FLAGc7144d22c [2019-12-07 15:20:45,976 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:20:45,977 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-12-07 15:20:45,982 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/data/8d7911c0f/e15da7d6598641e0aebe9b86b3860c3a/FLAGc7144d22c [2019-12-07 15:20:45,991 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/data/8d7911c0f/e15da7d6598641e0aebe9b86b3860c3a [2019-12-07 15:20:45,993 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:20:45,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:20:45,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:20:45,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:20:45,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:20:45,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:20:45" (1/1) ... [2019-12-07 15:20:45,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57205783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:45, skipping insertion in model container [2019-12-07 15:20:45,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:20:45" (1/1) ... [2019-12-07 15:20:46,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:20:46,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:20:46,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:20:46,170 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:20:46,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:20:46,244 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:20:46,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:46 WrapperNode [2019-12-07 15:20:46,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:20:46,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:20:46,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:20:46,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:20:46,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:46" (1/1) ... [2019-12-07 15:20:46,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:46" (1/1) ... [2019-12-07 15:20:46,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:20:46,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:20:46,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:20:46,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:20:46,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:46" (1/1) ... [2019-12-07 15:20:46,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:46" (1/1) ... [2019-12-07 15:20:46,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:46" (1/1) ... [2019-12-07 15:20:46,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:46" (1/1) ... [2019-12-07 15:20:46,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:46" (1/1) ... [2019-12-07 15:20:46,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:46" (1/1) ... [2019-12-07 15:20:46,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:46" (1/1) ... [2019-12-07 15:20:46,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:20:46,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:20:46,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:20:46,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:20:46,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/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 15:20:46,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-12-07 15:20:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:20:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 15:20:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 15:20:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:20:46,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:20:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 15:20:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 15:20:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:20:47,862 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:20:47,862 INFO L287 CfgBuilder]: Removed 20 assume(true) statements. [2019-12-07 15:20:47,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:20:47 BoogieIcfgContainer [2019-12-07 15:20:47,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:20:47,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:20:47,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:20:47,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:20:47,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:20:45" (1/3) ... [2019-12-07 15:20:47,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc5b1dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:20:47, skipping insertion in model container [2019-12-07 15:20:47,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:20:46" (2/3) ... [2019-12-07 15:20:47,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc5b1dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:20:47, skipping insertion in model container [2019-12-07 15:20:47,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:20:47" (3/3) ... [2019-12-07 15:20:47,868 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2019-12-07 15:20:47,874 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:20:47,878 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:20:47,885 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:20:47,899 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:20:47,900 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:20:47,900 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:20:47,900 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:20:47,900 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:20:47,900 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:20:47,900 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:20:47,900 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:20:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-12-07 15:20:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 15:20:47,913 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:20:47,914 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:20:47,914 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:20:47,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:20:47,917 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-12-07 15:20:47,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:20:47,925 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269652019] [2019-12-07 15:20:47,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/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 15:20:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:20:48,164 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 15:20:48,168 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:20:48,177 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 15:20:48,177 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:20:48,179 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 15:20:48,180 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269652019] [2019-12-07 15:20:48,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:20:48,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:20:48,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493861415] [2019-12-07 15:20:48,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:20:48,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:20:48,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:20:48,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:20:48,194 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-12-07 15:20:48,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:20:48,208 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-12-07 15:20:48,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:20:48,209 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 15:20:48,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:20:48,216 INFO L225 Difference]: With dead ends: 82 [2019-12-07 15:20:48,216 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 15:20:48,219 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 15:20:48,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 15:20:48,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 15:20:48,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 15:20:48,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-12-07 15:20:48,249 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-12-07 15:20:48,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:20:48,250 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-12-07 15:20:48,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:20:48,250 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-12-07 15:20:48,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 15:20:48,250 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:20:48,250 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:20:48,451 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:20:48,452 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:20:48,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:20:48,453 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-12-07 15:20:48,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:20:48,455 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921644771] [2019-12-07 15:20:48,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/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 15:20:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:20:48,745 INFO L264 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:20:48,746 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:20:49,912 WARN L192 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-12-07 15:20:49,914 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:20:51,007 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 15:20:51,008 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:20:54,397 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_float_~x ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-12-07 15:20:54,634 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 15:20:54,635 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921644771] [2019-12-07 15:20:54,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:20:54,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-12-07 15:20:54,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594150750] [2019-12-07 15:20:54,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 15:20:54,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:20:54,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 15:20:54,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2019-12-07 15:20:54,637 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 11 states. [2019-12-07 15:20:59,289 WARN L192 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 13 [2019-12-07 15:21:00,795 WARN L192 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 16 [2019-12-07 15:21:01,720 WARN L192 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2019-12-07 15:21:01,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:21:01,971 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2019-12-07 15:21:01,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 15:21:01,972 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2019-12-07 15:21:01,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:21:01,974 INFO L225 Difference]: With dead ends: 49 [2019-12-07 15:21:01,974 INFO L226 Difference]: Without dead ends: 44 [2019-12-07 15:21:01,975 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=51, Invalid=108, Unknown=1, NotChecked=22, Total=182 [2019-12-07 15:21:01,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-12-07 15:21:01,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2019-12-07 15:21:01,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 15:21:01,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-12-07 15:21:01,982 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-12-07 15:21:01,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:21:01,983 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-12-07 15:21:01,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 15:21:01,983 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-12-07 15:21:01,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 15:21:01,983 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:21:01,983 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:21:02,184 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:21:02,185 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:21:02,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:21:02,186 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-12-07 15:21:02,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:21:02,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877701831] [2019-12-07 15:21:02,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 15:21:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:21:02,275 INFO L264 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 15:21:02,276 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:21:02,332 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 15:21:02,332 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:21:02,393 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 15:21:02,393 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877701831] [2019-12-07 15:21:02,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:21:02,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2019-12-07 15:21:02,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480547532] [2019-12-07 15:21:02,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 15:21:02,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:21:02,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 15:21:02,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 15:21:02,394 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 7 states. [2019-12-07 15:21:02,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:21:02,446 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-12-07 15:21:02,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:21:02,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-12-07 15:21:02,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:21:02,447 INFO L225 Difference]: With dead ends: 39 [2019-12-07 15:21:02,447 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 15:21:02,447 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:21:02,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 15:21:02,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 15:21:02,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 15:21:02,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 15:21:02,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-12-07 15:21:02,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:21:02,448 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:21:02,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 15:21:02,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:21:02,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 15:21:02,649 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:21:02,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 15:21:02,771 INFO L246 CegarLoopResult]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-12-07 15:21:02,771 INFO L246 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-12-07 15:21:02,771 INFO L249 CegarLoopResult]: At program point L127(lines 110 128) the Hoare annotation is: true [2019-12-07 15:21:02,771 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 15:21:02,772 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 15:21:02,772 INFO L246 CegarLoopResult]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-12-07 15:21:02,772 INFO L246 CegarLoopResult]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-12-07 15:21:02,772 INFO L242 CegarLoopResult]: At program point L20-2(lines 20 24) the Hoare annotation is: (and (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fmod_float_~x) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 15:21:02,772 INFO L246 CegarLoopResult]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-12-07 15:21:02,772 INFO L246 CegarLoopResult]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-12-07 15:21:02,772 INFO L242 CegarLoopResult]: At program point L104(lines 17 105) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fmod_float_~x) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 15:21:02,772 INFO L246 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-12-07 15:21:02,772 INFO L246 CegarLoopResult]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-12-07 15:21:02,772 INFO L242 CegarLoopResult]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-12-07 15:21:02,773 INFO L246 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-12-07 15:21:02,773 INFO L242 CegarLoopResult]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-12-07 15:21:02,773 INFO L246 CegarLoopResult]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-12-07 15:21:02,773 INFO L242 CegarLoopResult]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-12-07 15:21:02,773 INFO L246 CegarLoopResult]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-12-07 15:21:02,773 INFO L246 CegarLoopResult]: For program point L122(lines 122 125) no Hoare annotation was computed. [2019-12-07 15:21:02,773 INFO L246 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-12-07 15:21:02,773 INFO L246 CegarLoopResult]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-12-07 15:21:02,773 INFO L246 CegarLoopResult]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-12-07 15:21:02,773 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 15:21:02,773 INFO L246 CegarLoopResult]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-12-07 15:21:02,773 INFO L246 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2019-12-07 15:21:02,774 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2019-12-07 15:21:02,774 INFO L242 CegarLoopResult]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-12-07 15:21:02,774 INFO L246 CegarLoopResult]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-12-07 15:21:02,774 INFO L246 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-12-07 15:21:02,774 INFO L242 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-12-07 15:21:02,774 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 15:21:02,774 INFO L246 CegarLoopResult]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-12-07 15:21:02,774 INFO L246 CegarLoopResult]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-12-07 15:21:02,774 INFO L246 CegarLoopResult]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-12-07 15:21:02,774 INFO L246 CegarLoopResult]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-12-07 15:21:02,775 INFO L242 CegarLoopResult]: At program point L108(line 108) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fmod_float_~x) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 15:21:02,775 INFO L246 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-12-07 15:21:02,775 INFO L246 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-12-07 15:21:02,775 INFO L242 CegarLoopResult]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-12-07 15:21:02,775 INFO L246 CegarLoopResult]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-12-07 15:21:02,775 INFO L246 CegarLoopResult]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-12-07 15:21:02,783 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:21:02,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,786 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:21:02,786 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,787 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,787 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,787 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:21:02,787 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,788 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:21:02,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,789 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:21:02,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,790 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:21:02,790 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,790 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,790 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:21:02 BoogieIcfgContainer [2019-12-07 15:21:02,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:21:02,792 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:21:02,792 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:21:02,792 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:21:02,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:20:47" (3/4) ... [2019-12-07 15:21:02,796 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 15:21:02,804 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 15:21:02,805 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 15:21:02,805 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 15:21:02,833 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_487984ae-4b2e-43d6-9260-43b8b6a43ed0/bin/uautomizer/witness.graphml [2019-12-07 15:21:02,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:21:02,834 INFO L168 Benchmark]: Toolchain (without parser) took 16840.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 951.0 MB in the beginning and 946.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 127.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:21:02,834 INFO L168 Benchmark]: CDTParser took 0.13 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 15:21:02,835 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:21:02,835 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:21:02,835 INFO L168 Benchmark]: Boogie Preprocessor took 29.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:21:02,836 INFO L168 Benchmark]: RCFGBuilder took 1557.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:21:02,836 INFO L168 Benchmark]: TraceAbstraction took 14927.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 953.5 MB in the end (delta: 117.6 MB). Peak memory consumption was 117.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:21:02,836 INFO L168 Benchmark]: Witness Printer took 41.33 ms. Allocated memory is still 1.2 GB. Free memory was 953.5 MB in the beginning and 946.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:21:02,838 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 250.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1557.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14927.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 953.5 MB in the end (delta: 117.6 MB). Peak memory consumption was 117.6 MB. Max. memory is 11.5 GB. * Witness Printer took 41.33 ms. Allocated memory is still 1.2 GB. Free memory was 953.5 MB in the beginning and 946.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 123]: 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: 110]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant [2019-12-07 15:21:02,844 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:21:02,844 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,845 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,845 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,845 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:21:02,845 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,846 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,846 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((1bv32 == \result && !~fp.eq~FLOAT(\result, \result)) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant [2019-12-07 15:21:02,846 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:21:02,846 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,847 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,847 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,847 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:21:02,847 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,847 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,848 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 17]: Loop Invariant [2019-12-07 15:21:02,848 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:21:02,848 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,848 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,848 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,849 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:21:02,849 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,849 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:21:02,849 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (!~fp.eq~FLOAT(\result, \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 14.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 109 SDtfs, 112 SDslu, 194 SDs, 0 SdLazy, 47 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 48 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 11.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 54 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 14 QuantifiedInterpolants, 4813 SizeOfPredicates, 19 NumberOfNonLiveVariables, 154 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...