./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/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 d7891ae4dafa78057f773d618d0930e65225f61c ........................................................................................................................................................................................................................ 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_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/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 d7891ae4dafa78057f773d618d0930e65225f61c .................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 07:59:17,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:59:17,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:59:17,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:59:17,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:59:17,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:59:17,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:59:17,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:59:17,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:59:17,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:59:17,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:59:17,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:59:17,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:59:17,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:59:17,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:59:17,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:59:17,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:59:17,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:59:17,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:59:17,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:59:17,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:59:17,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:59:17,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:59:17,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:59:17,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:59:17,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:59:17,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:59:17,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:59:17,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:59:17,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:59:17,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:59:17,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:59:17,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:59:17,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:59:17,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:59:17,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:59:17,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:59:17,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:59:17,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:59:17,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:59:17,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:59:17,365 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 07:59:17,392 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:59:17,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:59:17,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:59:17,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:59:17,405 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:59:17,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:59:17,406 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:59:17,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:59:17,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:59:17,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:59:17,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:59:17,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:59:17,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:59:17,407 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:59:17,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:59:17,408 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:59:17,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:59:17,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:59:17,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:59:17,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:59:17,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:59:17,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:59:17,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:59:17,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:59:17,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:59:17,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 07:59:17,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 07:59:17,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:59:17,412 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_8311fda9-b38b-428b-8c19-c2c18bb1fafe/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 -> d7891ae4dafa78057f773d618d0930e65225f61c [2019-11-20 07:59:17,554 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:59:17,565 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:59:17,568 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:59:17,569 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:59:17,569 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:59:17,570 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2019-11-20 07:59:17,637 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/data/15b557fba/231a3599177d4896a7a0672dff4bfaf9/FLAG029ec3324 [2019-11-20 07:59:18,017 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:59:18,018 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2019-11-20 07:59:18,024 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/data/15b557fba/231a3599177d4896a7a0672dff4bfaf9/FLAG029ec3324 [2019-11-20 07:59:18,038 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/data/15b557fba/231a3599177d4896a7a0672dff4bfaf9 [2019-11-20 07:59:18,042 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:59:18,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:59:18,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:59:18,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:59:18,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:59:18,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:59:18" (1/1) ... [2019-11-20 07:59:18,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc84215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:18, skipping insertion in model container [2019-11-20 07:59:18,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:59:18" (1/1) ... [2019-11-20 07:59:18,061 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:59:18,078 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:59:18,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:59:18,287 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:59:18,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:59:18,336 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:59:18,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:18 WrapperNode [2019-11-20 07:59:18,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:59:18,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:59:18,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:59:18,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:59:18,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:18" (1/1) ... [2019-11-20 07:59:18,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:18" (1/1) ... [2019-11-20 07:59:18,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:59:18,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:59:18,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:59:18,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:59:18,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:18" (1/1) ... [2019-11-20 07:59:18,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:18" (1/1) ... [2019-11-20 07:59:18,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:18" (1/1) ... [2019-11-20 07:59:18,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:18" (1/1) ... [2019-11-20 07:59:18,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:18" (1/1) ... [2019-11-20 07:59:18,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:18" (1/1) ... [2019-11-20 07:59:18,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:18" (1/1) ... [2019-11-20 07:59:18,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:59:18,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:59:18,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:59:18,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:59:18,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/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 [2019-11-20 07:59:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:59:18,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:59:18,591 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:59:18,592 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 07:59:18,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:59:18 BoogieIcfgContainer [2019-11-20 07:59:18,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:59:18,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:59:18,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:59:18,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:59:18,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:59:18" (1/3) ... [2019-11-20 07:59:18,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33331a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:59:18, skipping insertion in model container [2019-11-20 07:59:18,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:18" (2/3) ... [2019-11-20 07:59:18,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33331a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:59:18, skipping insertion in model container [2019-11-20 07:59:18,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:59:18" (3/3) ... [2019-11-20 07:59:18,600 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2019-11-20 07:59:18,609 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:59:18,614 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 07:59:18,625 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 07:59:18,645 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:59:18,646 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 07:59:18,646 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:59:18,646 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:59:18,646 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:59:18,646 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:59:18,647 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:59:18,647 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:59:18,660 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-20 07:59:18,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 07:59:18,664 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:59:18,665 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-20 07:59:18,665 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:59:18,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:59:18,671 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-20 07:59:18,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:59:18,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706054076] [2019-11-20 07:59:18,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:59:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:59:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:59:18,800 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:59:18,801 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 07:59:18,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:59:18 BoogieIcfgContainer [2019-11-20 07:59:18,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 07:59:18,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:59:18,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:59:18,828 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:59:18,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:59:18" (3/4) ... [2019-11-20 07:59:18,831 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 07:59:18,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:59:18,833 INFO L168 Benchmark]: Toolchain (without parser) took 789.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:59:18,834 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:59:18,835 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -198.0 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-11-20 07:59:18,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.08 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-20 07:59:18,836 INFO L168 Benchmark]: Boogie Preprocessor took 16.15 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. [2019-11-20 07:59:18,837 INFO L168 Benchmark]: RCFGBuilder took 204.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-11-20 07:59:18,838 INFO L168 Benchmark]: TraceAbstraction took 230.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-11-20 07:59:18,838 INFO L168 Benchmark]: Witness Printer took 4.34 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. [2019-11-20 07:59:18,847 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 290.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -198.0 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.08 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.15 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. * RCFGBuilder took 204.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 230.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8, overapproximation of someUnaryFLOAToperation at line 5. Possible FailurePath: [L4] float f = 0x1.9e0c22p-101f; [L5] float g = -0x1.3c9014p-50f; [L6] float target = -0x1p-149f; [L8] float result = f * g; [L10] COND TRUE !(result == target) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 07:59:20,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:59:20,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:59:20,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:59:20,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:59:20,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:59:20,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:59:20,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:59:20,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:59:20,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:59:20,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:59:20,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:59:20,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:59:20,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:59:20,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:59:20,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:59:20,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:59:20,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:59:20,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:59:20,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:59:20,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:59:20,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:59:20,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:59:20,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:59:20,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:59:20,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:59:20,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:59:20,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:59:20,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:59:20,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:59:20,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:59:20,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:59:20,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:59:20,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:59:20,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:59:20,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:59:20,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:59:20,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:59:20,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:59:20,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:59:20,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:59:20,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 07:59:20,753 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:59:20,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:59:20,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:59:20,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:59:20,754 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:59:20,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:59:20,755 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:59:20,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:59:20,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:59:20,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:59:20,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:59:20,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:59:20,756 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 07:59:20,756 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 07:59:20,756 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:59:20,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:59:20,757 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:59:20,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:59:20,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:59:20,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:59:20,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:59:20,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:59:20,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:59:20,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:59:20,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:59:20,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:59:20,759 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 07:59:20,759 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 07:59:20,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:59:20,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 07:59:20,760 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_8311fda9-b38b-428b-8c19-c2c18bb1fafe/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 -> d7891ae4dafa78057f773d618d0930e65225f61c [2019-11-20 07:59:21,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:59:21,096 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:59:21,099 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:59:21,100 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:59:21,100 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:59:21,101 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2019-11-20 07:59:21,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/data/662f691fb/d1ee12b48dd441908c1e83afcdabebc6/FLAG961d89f66 [2019-11-20 07:59:21,566 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:59:21,567 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2019-11-20 07:59:21,572 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/data/662f691fb/d1ee12b48dd441908c1e83afcdabebc6/FLAG961d89f66 [2019-11-20 07:59:22,024 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/data/662f691fb/d1ee12b48dd441908c1e83afcdabebc6 [2019-11-20 07:59:22,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:59:22,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:59:22,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:59:22,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:59:22,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:59:22,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:59:22" (1/1) ... [2019-11-20 07:59:22,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47428a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:22, skipping insertion in model container [2019-11-20 07:59:22,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:59:22" (1/1) ... [2019-11-20 07:59:22,043 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:59:22,060 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:59:22,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:59:22,207 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:59:22,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:59:22,237 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:59:22,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:22 WrapperNode [2019-11-20 07:59:22,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:59:22,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:59:22,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:59:22,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:59:22,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:22" (1/1) ... [2019-11-20 07:59:22,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:22" (1/1) ... [2019-11-20 07:59:22,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:59:22,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:59:22,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:59:22,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:59:22,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:22" (1/1) ... [2019-11-20 07:59:22,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:22" (1/1) ... [2019-11-20 07:59:22,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:22" (1/1) ... [2019-11-20 07:59:22,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:22" (1/1) ... [2019-11-20 07:59:22,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:22" (1/1) ... [2019-11-20 07:59:22,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:22" (1/1) ... [2019-11-20 07:59:22,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:22" (1/1) ... [2019-11-20 07:59:22,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:59:22,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:59:22,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:59:22,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:59:22,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/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 [2019-11-20 07:59:22,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:59:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:59:22,529 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:59:22,529 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 07:59:22,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:59:22 BoogieIcfgContainer [2019-11-20 07:59:22,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:59:22,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:59:22,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:59:22,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:59:22,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:59:22" (1/3) ... [2019-11-20 07:59:22,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eef7181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:59:22, skipping insertion in model container [2019-11-20 07:59:22,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:59:22" (2/3) ... [2019-11-20 07:59:22,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eef7181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:59:22, skipping insertion in model container [2019-11-20 07:59:22,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:59:22" (3/3) ... [2019-11-20 07:59:22,537 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2019-11-20 07:59:22,546 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:59:22,552 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 07:59:22,561 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 07:59:22,581 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:59:22,582 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 07:59:22,582 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:59:22,582 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:59:22,582 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:59:22,582 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:59:22,583 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:59:22,583 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:59:22,594 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-20 07:59:22,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 07:59:22,600 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:59:22,600 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-20 07:59:22,601 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 07:59:22,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:59:22,605 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-20 07:59:22,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 07:59:22,613 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063739431] [2019-11-20 07:59:22,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/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 [2019-11-20 07:59:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:59:22,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 07:59:22,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:59:22,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:59:22,795 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 07:59:22,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:59:22,826 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063739431] [2019-11-20 07:59:22,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:59:22,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-20 07:59:22,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661076633] [2019-11-20 07:59:22,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 07:59:22,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 07:59:22,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:59:22,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:59:22,843 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2019-11-20 07:59:22,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:59:22,861 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-11-20 07:59:22,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:59:22,862 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-11-20 07:59:22,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:59:22,867 INFO L225 Difference]: With dead ends: 12 [2019-11-20 07:59:22,867 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 07:59:22,870 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:59:22,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 07:59:22,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 07:59:22,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 07:59:22,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 07:59:22,887 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-11-20 07:59:22,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:59:22,888 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:59:22,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 07:59:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 07:59:22,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 07:59:23,093 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 07:59:23,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 07:59:23,141 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 07:59:23,141 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 07:59:23,141 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 07:59:23,141 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-11-20 07:59:23,142 INFO L440 ceAbstractionStarter]: At program point L12(lines 3 13) the Hoare annotation is: (and (= (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 713623846352979940529142984724747568191373312.0))) ULTIMATE.start_main_~target~0) (= ULTIMATE.start_main_~result~0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 13567505.0 21267647932558653966460912964485513216.0)) (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 5186565.0 4722366482869645213696.0)))))) [2019-11-20 07:59:23,142 INFO L444 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2019-11-20 07:59:23,142 INFO L444 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-11-20 07:59:23,142 INFO L444 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2019-11-20 07:59:23,150 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,151 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,151 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,151 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,154 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,154 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,154 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,154 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:59:23 BoogieIcfgContainer [2019-11-20 07:59:23,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 07:59:23,157 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:59:23,157 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:59:23,157 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:59:23,158 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:59:22" (3/4) ... [2019-11-20 07:59:23,160 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 07:59:23,168 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 07:59:23,169 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 07:59:23,169 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 07:59:23,205 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8311fda9-b38b-428b-8c19-c2c18bb1fafe/bin/uautomizer/witness.graphml [2019-11-20 07:59:23,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:59:23,208 INFO L168 Benchmark]: Toolchain (without parser) took 1180.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 961.8 MB in the beginning and 1.0 GB in the end (delta: -76.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-11-20 07:59:23,208 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:59:23,209 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.92 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 07:59:23,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -141.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-11-20 07:59:23,210 INFO L168 Benchmark]: Boogie Preprocessor took 19.53 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. [2019-11-20 07:59:23,211 INFO L168 Benchmark]: RCFGBuilder took 184.72 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: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-20 07:59:23,211 INFO L168 Benchmark]: TraceAbstraction took 625.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2019-11-20 07:59:23,212 INFO L168 Benchmark]: Witness Printer took 48.13 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-20 07:59:23,215 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 209.92 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -141.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.53 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 184.72 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: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 625.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Witness Printer took 48.13 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: 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 - 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.traceabstraction: - PositiveResult [Line: 10]: 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: 3]: Loop Invariant [2019-11-20 07:59:23,221 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,222 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,222 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,222 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 07:59:23,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/713623846352979940529142984724747568191373312)) == target && result == ~fp.mul~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 13567505/21267647932558653966460912964485513216), ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5186565/4722366482869645213696))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 18 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 4 NumberOfNonLiveVariables, 14 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...