./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/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_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/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 0.1.25-f470102 [2019-12-07 16:10:27,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:10:27,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:10:27,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:10:27,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:10:27,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:10:27,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:10:27,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:10:27,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:10:27,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:10:27,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:10:27,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:10:27,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:10:27,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:10:27,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:10:27,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:10:27,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:10:27,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:10:27,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:10:27,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:10:27,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:10:27,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:10:27,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:10:27,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:10:27,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:10:27,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:10:27,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:10:27,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:10:27,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:10:27,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:10:27,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:10:27,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:10:27,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:10:27,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:10:27,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:10:27,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:10:27,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:10:27,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:10:27,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:10:27,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:10:27,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:10:27,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 16:10:27,210 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:10:27,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:10:27,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:10:27,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:10:27,211 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:10:27,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:10:27,212 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:10:27,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:10:27,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:10:27,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:10:27,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:10:27,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:10:27,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:10:27,213 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:10:27,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:10:27,213 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:10:27,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:10:27,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:10:27,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:10:27,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:10:27,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:10:27,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:10:27,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:10:27,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:10:27,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:10:27,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:10:27,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:10:27,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:10:27,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:10:27,216 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_66680806-ec9b-4eed-a9d2-a494bfcc1f40/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 [2019-12-07 16:10:27,319 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:10:27,326 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:10:27,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:10:27,330 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:10:27,330 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:10:27,331 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2019-12-07 16:10:27,368 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/data/6b403fab0/49db2263d0704777821207b4e214a447/FLAGb4a0fdc5f [2019-12-07 16:10:27,673 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:10:27,674 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2019-12-07 16:10:27,677 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/data/6b403fab0/49db2263d0704777821207b4e214a447/FLAGb4a0fdc5f [2019-12-07 16:10:27,686 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/data/6b403fab0/49db2263d0704777821207b4e214a447 [2019-12-07 16:10:27,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:10:27,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:10:27,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:10:27,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:10:27,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:10:27,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:10:27" (1/1) ... [2019-12-07 16:10:27,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@203d0a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:27, skipping insertion in model container [2019-12-07 16:10:27,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:10:27" (1/1) ... [2019-12-07 16:10:27,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:10:27,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:10:27,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:10:27,846 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:10:27,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:10:27,871 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:10:27,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:27 WrapperNode [2019-12-07 16:10:27,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:10:27,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:10:27,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:10:27,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:10:27,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:27" (1/1) ... [2019-12-07 16:10:27,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:27" (1/1) ... [2019-12-07 16:10:27,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:10:27,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:10:27,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:10:27,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:10:27,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:27" (1/1) ... [2019-12-07 16:10:27,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:27" (1/1) ... [2019-12-07 16:10:27,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:27" (1/1) ... [2019-12-07 16:10:27,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:27" (1/1) ... [2019-12-07 16:10:27,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:27" (1/1) ... [2019-12-07 16:10:27,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:27" (1/1) ... [2019-12-07 16:10:27,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:27" (1/1) ... [2019-12-07 16:10:27,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:10:27,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:10:27,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:10:27,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:10:27,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:10:27,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:10:27,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:10:28,022 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:10:28,022 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 16:10:28,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:28 BoogieIcfgContainer [2019-12-07 16:10:28,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:10:28,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:10:28,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:10:28,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:10:28,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:10:27" (1/3) ... [2019-12-07 16:10:28,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98ace2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:10:28, skipping insertion in model container [2019-12-07 16:10:28,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:27" (2/3) ... [2019-12-07 16:10:28,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98ace2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:10:28, skipping insertion in model container [2019-12-07 16:10:28,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:28" (3/3) ... [2019-12-07 16:10:28,027 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2019-12-07 16:10:28,033 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:10:28,037 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:10:28,044 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:10:28,058 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:10:28,058 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:10:28,058 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:10:28,058 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:10:28,058 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:10:28,058 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:10:28,059 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:10:28,059 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:10:28,067 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-12-07 16:10:28,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 16:10:28,070 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:10:28,071 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 16:10:28,071 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:10:28,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:10:28,074 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-12-07 16:10:28,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:10:28,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943288322] [2019-12-07 16:10:28,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:10:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:10:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:10:28,149 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:10:28,149 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:10:28,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:10:28 BoogieIcfgContainer [2019-12-07 16:10:28,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:10:28,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:10:28,162 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:10:28,162 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:10:28,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:28" (3/4) ... [2019-12-07 16:10:28,164 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:10:28,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:10:28,166 INFO L168 Benchmark]: Toolchain (without parser) took 477.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -128.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:10:28,167 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:10:28,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:28,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.03 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:10:28,168 INFO L168 Benchmark]: Boogie Preprocessor took 11.12 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:10:28,168 INFO L168 Benchmark]: RCFGBuilder took 118.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:28,169 INFO L168 Benchmark]: TraceAbstraction took 137.71 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:28,169 INFO L168 Benchmark]: Witness Printer took 3.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:10:28,171 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 182.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.03 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.12 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 118.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 137.71 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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: 0.0s, 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 0.1.25-f470102 [2019-12-07 16:10:29,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:10:29,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:10:29,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:10:29,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:10:29,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:10:29,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:10:29,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:10:29,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:10:29,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:10:29,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:10:29,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:10:29,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:10:29,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:10:29,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:10:29,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:10:29,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:10:29,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:10:29,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:10:29,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:10:29,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:10:29,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:10:29,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:10:29,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:10:29,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:10:29,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:10:29,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:10:29,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:10:29,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:10:29,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:10:29,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:10:29,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:10:29,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:10:29,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:10:29,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:10:29,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:10:29,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:10:29,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:10:29,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:10:29,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:10:29,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:10:29,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 16:10:29,532 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:10:29,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:10:29,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:10:29,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:10:29,534 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:10:29,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:10:29,535 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:10:29,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:10:29,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:10:29,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:10:29,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:10:29,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:10:29,536 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:10:29,536 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:10:29,536 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:10:29,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:10:29,537 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:10:29,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:10:29,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:10:29,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:10:29,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:10:29,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:10:29,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:10:29,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:10:29,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:10:29,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:10:29,539 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 16:10:29,539 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:10:29,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:10:29,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:10:29,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:10:29,539 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_66680806-ec9b-4eed-a9d2-a494bfcc1f40/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 [2019-12-07 16:10:29,715 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:10:29,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:10:29,726 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:10:29,727 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:10:29,727 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:10:29,728 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2019-12-07 16:10:29,766 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/data/2b18f1074/74f90634c7184b0c8f952ae41112240f/FLAG994ea51a9 [2019-12-07 16:10:30,097 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:10:30,098 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2019-12-07 16:10:30,101 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/data/2b18f1074/74f90634c7184b0c8f952ae41112240f/FLAG994ea51a9 [2019-12-07 16:10:30,110 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/data/2b18f1074/74f90634c7184b0c8f952ae41112240f [2019-12-07 16:10:30,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:10:30,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:10:30,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:10:30,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:10:30,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:10:30,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:10:30" (1/1) ... [2019-12-07 16:10:30,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447048ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:30, skipping insertion in model container [2019-12-07 16:10:30,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:10:30" (1/1) ... [2019-12-07 16:10:30,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:10:30,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:10:30,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:10:30,255 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:10:30,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:10:30,277 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:10:30,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:30 WrapperNode [2019-12-07 16:10:30,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:10:30,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:10:30,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:10:30,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:10:30,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:30" (1/1) ... [2019-12-07 16:10:30,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:30" (1/1) ... [2019-12-07 16:10:30,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:10:30,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:10:30,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:10:30,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:10:30,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:30" (1/1) ... [2019-12-07 16:10:30,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:30" (1/1) ... [2019-12-07 16:10:30,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:30" (1/1) ... [2019-12-07 16:10:30,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:30" (1/1) ... [2019-12-07 16:10:30,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:30" (1/1) ... [2019-12-07 16:10:30,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:30" (1/1) ... [2019-12-07 16:10:30,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:30" (1/1) ... [2019-12-07 16:10:30,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:10:30,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:10:30,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:10:30,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:10:30,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:10:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:10:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:10:30,628 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:10:30,628 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 16:10:30,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:30 BoogieIcfgContainer [2019-12-07 16:10:30,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:10:30,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:10:30,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:10:30,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:10:30,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:10:30" (1/3) ... [2019-12-07 16:10:30,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31652c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:10:30, skipping insertion in model container [2019-12-07 16:10:30,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:10:30" (2/3) ... [2019-12-07 16:10:30,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31652c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:10:30, skipping insertion in model container [2019-12-07 16:10:30,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:30" (3/3) ... [2019-12-07 16:10:30,634 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2019-12-07 16:10:30,640 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:10:30,644 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:10:30,651 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:10:30,667 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:10:30,667 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:10:30,667 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:10:30,667 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:10:30,667 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:10:30,667 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:10:30,667 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:10:30,667 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:10:30,677 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 16:10:30,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 16:10:30,680 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:10:30,681 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 16:10:30,681 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:10:30,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:10:30,685 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-12-07 16:10:30,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:10:30,693 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906051251] [2019-12-07 16:10:30,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 16:10:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:10:30,773 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 16:10:30,776 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:10:30,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:10:30,822 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:10:30,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:10:30,863 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906051251] [2019-12-07 16:10:30,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:10:30,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 16:10:30,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679516768] [2019-12-07 16:10:30,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:10:30,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:10:30,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:10:30,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:10:30,878 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 6 states. [2019-12-07 16:10:31,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:10:31,012 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-12-07 16:10:31,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:10:31,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-12-07 16:10:31,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:10:31,017 INFO L225 Difference]: With dead ends: 13 [2019-12-07 16:10:31,018 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 16:10:31,019 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:10:31,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 16:10:31,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 16:10:31,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 16:10:31,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:10:31,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-12-07 16:10:31,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:10:31,036 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:10:31,036 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:10:31,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:10:31,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 16:10:31,237 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:10:31,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 16:10:31,312 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 16:10:31,312 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 16:10:31,312 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 16:10:31,312 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 16:10:31,313 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-12-07 16:10:31,313 INFO L242 CegarLoopResult]: 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))))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 16:10:31,313 INFO L246 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2019-12-07 16:10:31,313 INFO L246 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-12-07 16:10:31,313 INFO L246 CegarLoopResult]: For program point L10-3(line 10) no Hoare annotation was computed. [2019-12-07 16:10:31,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,321 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,321 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,321 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,321 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:10:31,324 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,324 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,324 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,324 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,324 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:10:31,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:10:31 BoogieIcfgContainer [2019-12-07 16:10:31,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:10:31,327 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:10:31,327 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:10:31,327 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:10:31,328 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:10:30" (3/4) ... [2019-12-07 16:10:31,331 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 16:10:31,338 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 16:10:31,338 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 16:10:31,338 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 16:10:31,363 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_66680806-ec9b-4eed-a9d2-a494bfcc1f40/bin/uautomizer/witness.graphml [2019-12-07 16:10:31,363 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:10:31,364 INFO L168 Benchmark]: Toolchain (without parser) took 1250.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 953.7 MB in the beginning and 1.0 GB in the end (delta: -94.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:31,365 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:10:31,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.00 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:31,366 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:31,367 INFO L168 Benchmark]: Boogie Preprocessor took 18.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:31,367 INFO L168 Benchmark]: RCFGBuilder took 280.12 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: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:31,368 INFO L168 Benchmark]: TraceAbstraction took 697.24 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: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:10:31,368 INFO L168 Benchmark]: Witness Printer took 36.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:10:31,371 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.00 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 943.0 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 52.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 280.12 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: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 697.24 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: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 11.5 GB. * Witness Printer took 36.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.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 - 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 * 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 [2019-12-07 16:10:31,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:10:31,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:10:31,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode 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)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 21 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 5 NumberOfNonLiveVariables, 15 ConjunctsInSsa, 6 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...