./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1091.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_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1091.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/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 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c ..................................................................................................................................................................................................................................................................................... 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_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1091.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/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 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c ...................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:08:42,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:08:42,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:08:42,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:08:42,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:08:42,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:08:42,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:08:42,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:08:42,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:08:42,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:08:42,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:08:42,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:08:42,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:08:42,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:08:42,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:08:42,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:08:42,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:08:42,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:08:42,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:08:42,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:08:42,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:08:42,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:08:42,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:08:42,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:08:42,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:08:42,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:08:42,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:08:42,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:08:42,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:08:42,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:08:42,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:08:42,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:08:42,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:08:42,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:08:42,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:08:42,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:08:42,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:08:42,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:08:42,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:08:42,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:08:42,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:08:42,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 09:08:42,232 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:08:42,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:08:42,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:08:42,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:08:42,233 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:08:42,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:08:42,233 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:08:42,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:08:42,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:08:42,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:08:42,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 09:08:42,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:08:42,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 09:08:42,235 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:08:42,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:08:42,235 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:08:42,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 09:08:42,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:08:42,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:08:42,235 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:08:42,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 09:08:42,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:08:42,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:08:42,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:08:42,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 09:08:42,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 09:08:42,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 09:08:42,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 09:08:42,237 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_8ce8941c-430f-4f0e-867a-98bf6d9214ee/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 -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2019-11-20 09:08:42,379 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:08:42,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:08:42,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:08:42,396 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:08:42,396 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:08:42,396 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1091.c [2019-11-20 09:08:42,448 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/data/934184796/0d5fe788193f41e2904df797e5a43cdb/FLAG83d87555f [2019-11-20 09:08:42,883 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:08:42,885 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/sv-benchmarks/c/float-newlib/float_req_bl_1091.c [2019-11-20 09:08:42,893 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/data/934184796/0d5fe788193f41e2904df797e5a43cdb/FLAG83d87555f [2019-11-20 09:08:43,230 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/data/934184796/0d5fe788193f41e2904df797e5a43cdb [2019-11-20 09:08:43,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:08:43,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:08:43,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:08:43,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:08:43,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:08:43,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:08:43" (1/1) ... [2019-11-20 09:08:43,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8441b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:43, skipping insertion in model container [2019-11-20 09:08:43,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:08:43" (1/1) ... [2019-11-20 09:08:43,253 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:08:43,267 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:08:43,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:08:43,495 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:08:43,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:08:43,541 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:08:43,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:43 WrapperNode [2019-11-20 09:08:43,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:08:43,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:08:43,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:08:43,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:08:43,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:43" (1/1) ... [2019-11-20 09:08:43,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:43" (1/1) ... [2019-11-20 09:08:43,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:08:43,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:08:43,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:08:43,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:08:43,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:43" (1/1) ... [2019-11-20 09:08:43,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:43" (1/1) ... [2019-11-20 09:08:43,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:43" (1/1) ... [2019-11-20 09:08:43,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:43" (1/1) ... [2019-11-20 09:08:43,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:43" (1/1) ... [2019-11-20 09:08:43,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:43" (1/1) ... [2019-11-20 09:08:43,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:43" (1/1) ... [2019-11-20 09:08:43,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:08:43,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:08:43,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:08:43,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:08:43,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/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 09:08:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 09:08:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 09:08:43,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 09:08:43,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:08:43,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:08:43,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 09:08:43,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:08:43,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 09:08:44,015 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:08:44,016 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 09:08:44,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:08:44 BoogieIcfgContainer [2019-11-20 09:08:44,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:08:44,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 09:08:44,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 09:08:44,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 09:08:44,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:08:43" (1/3) ... [2019-11-20 09:08:44,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246c5c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:08:44, skipping insertion in model container [2019-11-20 09:08:44,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:43" (2/3) ... [2019-11-20 09:08:44,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246c5c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:08:44, skipping insertion in model container [2019-11-20 09:08:44,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:08:44" (3/3) ... [2019-11-20 09:08:44,024 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091.c [2019-11-20 09:08:44,032 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 09:08:44,038 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 09:08:44,047 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 09:08:44,068 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 09:08:44,069 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 09:08:44,069 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 09:08:44,069 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:08:44,069 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:08:44,069 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 09:08:44,070 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:08:44,070 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 09:08:44,082 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-20 09:08:44,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 09:08:44,088 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:08:44,089 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:08:44,089 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:08:44,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:08:44,095 INFO L82 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2019-11-20 09:08:44,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:08:44,103 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616265843] [2019-11-20 09:08:44,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:08:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:08:44,204 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 09:08:44,204 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616265843] [2019-11-20 09:08:44,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:08:44,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 09:08:44,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786454112] [2019-11-20 09:08:44,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 09:08:44,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:08:44,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 09:08:44,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:08:44,221 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-20 09:08:44,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:08:44,235 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2019-11-20 09:08:44,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 09:08:44,236 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 09:08:44,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:08:44,246 INFO L225 Difference]: With dead ends: 50 [2019-11-20 09:08:44,246 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 09:08:44,248 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:08:44,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 09:08:44,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-20 09:08:44,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 09:08:44,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2019-11-20 09:08:44,275 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2019-11-20 09:08:44,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:08:44,276 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-11-20 09:08:44,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 09:08:44,276 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2019-11-20 09:08:44,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 09:08:44,277 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:08:44,277 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:08:44,277 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:08:44,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:08:44,278 INFO L82 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2019-11-20 09:08:44,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:08:44,278 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46217404] [2019-11-20 09:08:44,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:08:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:08:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:08:44,408 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:08:44,408 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 09:08:44,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:08:44 BoogieIcfgContainer [2019-11-20 09:08:44,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 09:08:44,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:08:44,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:08:44,447 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:08:44,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:08:44" (3/4) ... [2019-11-20 09:08:44,451 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 09:08:44,452 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:08:44,454 INFO L168 Benchmark]: Toolchain (without parser) took 1219.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -101.9 MB). Peak memory consumption was 341.4 kB. Max. memory is 11.5 GB. [2019-11-20 09:08:44,455 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:08:44,457 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 09:08:44,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.10 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 09:08:44,458 INFO L168 Benchmark]: Boogie Preprocessor took 57.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:08:44,459 INFO L168 Benchmark]: RCFGBuilder took 379.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:08:44,460 INFO L168 Benchmark]: TraceAbstraction took 428.25 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-20 09:08:44,460 INFO L168 Benchmark]: Witness Printer took 5.31 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. [2019-11-20 09:08:44,469 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 307.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.10 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 57.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 379.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 428.25 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 72]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 57, overapproximation of someBinaryArithmeticFLOAToperation at line 66, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [huge_ceil=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L23] COND FALSE !(j0 < 23) VAL [huge_ceil=1000000000000000000000000000000] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] return x; VAL [huge_ceil=1000000000000000000000000000000] [L68] float res = ceil_float(x); [L57] return x != x; VAL [huge_ceil=1000000000000000000000000000000] [L71] COND TRUE !isnan_float(res) [L72] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 09:08:46,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:08:46,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:08:46,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:08:46,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:08:46,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:08:46,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:08:46,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:08:46,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:08:46,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:08:46,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:08:46,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:08:46,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:08:46,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:08:46,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:08:46,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:08:46,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:08:46,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:08:46,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:08:46,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:08:46,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:08:46,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:08:46,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:08:46,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:08:46,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:08:46,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:08:46,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:08:46,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:08:46,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:08:46,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:08:46,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:08:46,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:08:46,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:08:46,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:08:46,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:08:46,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:08:46,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:08:46,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:08:46,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:08:46,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:08:46,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:08:46,297 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 09:08:46,310 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:08:46,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:08:46,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:08:46,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:08:46,312 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:08:46,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:08:46,312 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:08:46,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:08:46,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:08:46,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 09:08:46,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:08:46,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 09:08:46,313 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 09:08:46,314 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 09:08:46,314 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:08:46,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:08:46,314 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:08:46,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 09:08:46,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:08:46,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:08:46,315 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:08:46,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 09:08:46,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:08:46,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:08:46,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:08:46,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 09:08:46,317 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 09:08:46,317 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 09:08:46,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 09:08:46,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 09:08:46,317 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_8ce8941c-430f-4f0e-867a-98bf6d9214ee/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 -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2019-11-20 09:08:46,581 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:08:46,598 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:08:46,603 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:08:46,606 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:08:46,606 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:08:46,607 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1091.c [2019-11-20 09:08:46,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/data/041dcc12b/87ca1ba9d1594242af41da53f5ec4562/FLAGa9c07c22f [2019-11-20 09:08:47,088 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:08:47,088 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/sv-benchmarks/c/float-newlib/float_req_bl_1091.c [2019-11-20 09:08:47,095 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/data/041dcc12b/87ca1ba9d1594242af41da53f5ec4562/FLAGa9c07c22f [2019-11-20 09:08:47,514 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/data/041dcc12b/87ca1ba9d1594242af41da53f5ec4562 [2019-11-20 09:08:47,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:08:47,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:08:47,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:08:47,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:08:47,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:08:47,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:08:47" (1/1) ... [2019-11-20 09:08:47,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441db28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:47, skipping insertion in model container [2019-11-20 09:08:47,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:08:47" (1/1) ... [2019-11-20 09:08:47,534 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:08:47,556 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:08:47,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:08:47,753 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:08:47,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:08:47,826 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:08:47,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:47 WrapperNode [2019-11-20 09:08:47,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:08:47,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:08:47,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:08:47,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:08:47,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:47" (1/1) ... [2019-11-20 09:08:47,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:47" (1/1) ... [2019-11-20 09:08:47,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:08:47,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:08:47,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:08:47,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:08:47,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:47" (1/1) ... [2019-11-20 09:08:47,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:47" (1/1) ... [2019-11-20 09:08:47,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:47" (1/1) ... [2019-11-20 09:08:47,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:47" (1/1) ... [2019-11-20 09:08:47,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:47" (1/1) ... [2019-11-20 09:08:47,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:47" (1/1) ... [2019-11-20 09:08:47,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:47" (1/1) ... [2019-11-20 09:08:47,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:08:47,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:08:47,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:08:47,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:08:47,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/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 09:08:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 09:08:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:08:48,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:08:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 09:08:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:08:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 09:08:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 09:08:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 09:08:48,548 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:08:48,548 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 09:08:48,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:08:48 BoogieIcfgContainer [2019-11-20 09:08:48,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:08:48,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 09:08:48,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 09:08:48,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 09:08:48,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:08:47" (1/3) ... [2019-11-20 09:08:48,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0ca8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:08:48, skipping insertion in model container [2019-11-20 09:08:48,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:08:47" (2/3) ... [2019-11-20 09:08:48,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0ca8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:08:48, skipping insertion in model container [2019-11-20 09:08:48,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:08:48" (3/3) ... [2019-11-20 09:08:48,555 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091.c [2019-11-20 09:08:48,564 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 09:08:48,570 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 09:08:48,578 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 09:08:48,598 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 09:08:48,598 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 09:08:48,598 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 09:08:48,598 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:08:48,599 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:08:48,599 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 09:08:48,599 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:08:48,599 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 09:08:48,610 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-20 09:08:48,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 09:08:48,616 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:08:48,617 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:08:48,618 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:08:48,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:08:48,622 INFO L82 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2019-11-20 09:08:48,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:08:48,632 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918746861] [2019-11-20 09:08:48,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/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 09:08:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:08:48,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 09:08:48,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:08:48,707 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 09:08:48,708 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:08:48,711 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 09:08:48,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918746861] [2019-11-20 09:08:48,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:08:48,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 09:08:48,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787993732] [2019-11-20 09:08:48,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 09:08:48,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:08:48,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 09:08:48,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:08:48,732 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-20 09:08:48,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:08:48,749 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2019-11-20 09:08:48,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 09:08:48,750 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 09:08:48,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:08:48,760 INFO L225 Difference]: With dead ends: 50 [2019-11-20 09:08:48,760 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 09:08:48,763 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:08:48,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 09:08:48,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-20 09:08:48,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 09:08:48,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2019-11-20 09:08:48,793 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2019-11-20 09:08:48,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:08:48,794 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-11-20 09:08:48,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 09:08:48,794 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2019-11-20 09:08:48,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 09:08:48,795 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:08:48,795 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:08:49,007 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 09:08:49,008 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:08:49,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:08:49,008 INFO L82 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2019-11-20 09:08:49,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:08:49,009 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1057382059] [2019-11-20 09:08:49,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-20 09:08:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:08:49,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 09:08:49,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:08:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:08:49,182 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:08:49,239 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 09:08:49,239 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1057382059] [2019-11-20 09:08:49,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:08:49,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-20 09:08:49,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40643350] [2019-11-20 09:08:49,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 09:08:49,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:08:49,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 09:08:49,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-20 09:08:49,246 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand 8 states. [2019-11-20 09:08:49,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:08:49,584 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2019-11-20 09:08:49,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 09:08:49,585 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-20 09:08:49,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:08:49,586 INFO L225 Difference]: With dead ends: 34 [2019-11-20 09:08:49,586 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 09:08:49,587 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-20 09:08:49,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 09:08:49,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 09:08:49,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 09:08:49,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-11-20 09:08:49,595 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2019-11-20 09:08:49,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:08:49,595 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-11-20 09:08:49,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 09:08:49,596 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-11-20 09:08:49,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 09:08:49,597 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:08:49,597 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:08:49,797 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 09:08:49,798 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:08:49,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:08:49,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1612289523, now seen corresponding path program 1 times [2019-11-20 09:08:49,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:08:49,799 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594027992] [2019-11-20 09:08:49,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-20 09:08:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:08:49,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 09:08:49,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:08:49,974 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 09:08:49,974 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:08:50,068 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 09:08:50,068 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594027992] [2019-11-20 09:08:50,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:08:50,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 09:08:50,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090312364] [2019-11-20 09:08:50,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 09:08:50,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:08:50,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 09:08:50,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 09:08:50,070 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 8 states. [2019-11-20 09:08:50,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:08:50,145 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-11-20 09:08:50,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 09:08:50,145 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-20 09:08:50,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:08:50,146 INFO L225 Difference]: With dead ends: 18 [2019-11-20 09:08:50,146 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 09:08:50,147 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-20 09:08:50,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 09:08:50,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 09:08:50,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 09:08:50,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 09:08:50,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-20 09:08:50,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:08:50,148 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 09:08:50,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 09:08:50,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 09:08:50,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 09:08:50,358 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 09:08:50,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 09:08:50,429 INFO L444 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2019-11-20 09:08:50,429 INFO L444 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2019-11-20 09:08:50,429 INFO L444 ceAbstractionStarter]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2019-11-20 09:08:50,429 INFO L444 ceAbstractionStarter]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2019-11-20 09:08:50,429 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2019-11-20 09:08:50,430 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 09:08:50,430 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 09:08:50,430 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 09:08:50,430 INFO L444 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2019-11-20 09:08:50,430 INFO L440 ceAbstractionStarter]: At program point L57(line 57) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start_ceil_float_#res| .cse0) (= ULTIMATE.start_ceil_float_~x .cse0))) [2019-11-20 09:08:50,430 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2019-11-20 09:08:50,431 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2019-11-20 09:08:50,431 INFO L440 ceAbstractionStarter]: At program point L53(lines 13 54) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start_ceil_float_#res| .cse0) (= ULTIMATE.start_ceil_float_~x .cse0))) [2019-11-20 09:08:50,431 INFO L444 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-20 09:08:50,431 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= ULTIMATE.start_ceil_float_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-11-20 09:08:50,431 INFO L444 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2019-11-20 09:08:50,431 INFO L444 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2019-11-20 09:08:50,432 INFO L444 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2019-11-20 09:08:50,432 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 09:08:50,432 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2019-11-20 09:08:50,432 INFO L444 ceAbstractionStarter]: For program point L71(lines 71 74) no Hoare annotation was computed. [2019-11-20 09:08:50,432 INFO L444 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-20 09:08:50,432 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2019-11-20 09:08:50,432 INFO L447 ceAbstractionStarter]: At program point L76(lines 59 77) the Hoare annotation is: true [2019-11-20 09:08:50,433 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2019-11-20 09:08:50,433 INFO L444 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2019-11-20 09:08:50,440 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,440 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,444 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,444 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,446 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,446 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,447 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,447 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,448 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,449 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:08:50 BoogieIcfgContainer [2019-11-20 09:08:50,455 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 09:08:50,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:08:50,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:08:50,456 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:08:50,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:08:48" (3/4) ... [2019-11-20 09:08:50,466 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 09:08:50,486 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-20 09:08:50,486 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 09:08:50,487 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 09:08:50,523 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 09:08:50,523 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 09:08:50,551 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8ce8941c-430f-4f0e-867a-98bf6d9214ee/bin/uautomizer/witness.graphml [2019-11-20 09:08:50,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:08:50,553 INFO L168 Benchmark]: Toolchain (without parser) took 3033.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 959.1 MB in the beginning and 1.0 GB in the end (delta: -62.3 MB). Peak memory consumption was 85.6 MB. Max. memory is 11.5 GB. [2019-11-20 09:08:50,553 INFO L168 Benchmark]: CDTParser took 0.27 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 09:08:50,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.46 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 09:08:50,555 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-20 09:08:50,555 INFO L168 Benchmark]: Boogie Preprocessor took 30.09 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 09:08:50,556 INFO L168 Benchmark]: RCFGBuilder took 595.52 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2019-11-20 09:08:50,556 INFO L168 Benchmark]: TraceAbstraction took 1905.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.0 MB). Peak memory consumption was 85.0 MB. Max. memory is 11.5 GB. [2019-11-20 09:08:50,557 INFO L168 Benchmark]: Witness Printer took 95.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:08:50,559 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 307.46 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 95.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.09 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 595.52 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1905.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.0 MB). Peak memory consumption was 85.0 MB. Max. memory is 11.5 GB. * Witness Printer took 95.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 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 - 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: 72]: 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: 13]: Loop Invariant [2019-11-20 09:08:50,568 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,568 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,568 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant [2019-11-20 09:08:50,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,570 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 57]: Loop Invariant [2019-11-20 09:08:50,570 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,570 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,571 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:08:50,571 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (1bv32 == \result && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 19 SDslu, 66 SDs, 0 SdLazy, 49 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 36 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 2 QuantifiedInterpolants, 2748 SizeOfPredicates, 15 NumberOfNonLiveVariables, 98 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...