./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8571d6e044ba86c3b82c24f6ff451bf497f2aedf ............................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8571d6e044ba86c3b82c24f6ff451bf497f2aedf .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 03:18:13,219 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 03:18:13,220 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 03:18:13,226 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 03:18:13,226 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 03:18:13,226 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 03:18:13,227 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 03:18:13,228 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 03:18:13,228 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 03:18:13,229 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 03:18:13,229 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 03:18:13,229 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 03:18:13,230 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 03:18:13,230 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 03:18:13,231 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 03:18:13,231 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 03:18:13,231 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 03:18:13,232 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 03:18:13,233 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 03:18:13,234 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 03:18:13,234 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 03:18:13,235 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 03:18:13,236 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 03:18:13,236 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 03:18:13,236 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 03:18:13,236 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 03:18:13,237 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 03:18:13,237 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 03:18:13,238 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 03:18:13,238 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 03:18:13,238 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 03:18:13,238 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 03:18:13,239 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 03:18:13,239 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 03:18:13,239 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 03:18:13,239 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 03:18:13,240 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 03:18:13,246 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 03:18:13,247 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 03:18:13,247 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 03:18:13,247 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 03:18:13,247 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 03:18:13,247 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 03:18:13,248 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 03:18:13,248 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 03:18:13,248 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 03:18:13,248 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 03:18:13,248 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 03:18:13,248 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 03:18:13,248 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 03:18:13,248 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 03:18:13,249 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 03:18:13,249 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 03:18:13,249 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 03:18:13,249 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 03:18:13,249 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 03:18:13,249 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 03:18:13,249 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 03:18:13,249 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 03:18:13,249 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 03:18:13,249 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 03:18:13,250 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 03:18:13,250 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 03:18:13,250 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 03:18:13,250 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 03:18:13,250 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 03:18:13,250 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 03:18:13,250 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 03:18:13,250 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 03:18:13,250 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 03:18:13,250 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 03:18:13,250 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 03:18:13,251 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 03:18:13,251 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan 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 -> Taipan 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 -> 8571d6e044ba86c3b82c24f6ff451bf497f2aedf [2018-12-03 03:18:13,268 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 03:18:13,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 03:18:13,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 03:18:13,277 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 03:18:13,278 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 03:18:13,278 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-12-03 03:18:13,315 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/data/f888f0b66/db1cae1e0f82498e8b5b4fbb044e2c8b/FLAG4dfc87af9 [2018-12-03 03:18:13,759 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 03:18:13,760 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-12-03 03:18:13,764 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/data/f888f0b66/db1cae1e0f82498e8b5b4fbb044e2c8b/FLAG4dfc87af9 [2018-12-03 03:18:13,774 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/data/f888f0b66/db1cae1e0f82498e8b5b4fbb044e2c8b [2018-12-03 03:18:13,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 03:18:13,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 03:18:13,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 03:18:13,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 03:18:13,779 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 03:18:13,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:18:13" (1/1) ... [2018-12-03 03:18:13,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd2551a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:13, skipping insertion in model container [2018-12-03 03:18:13,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:18:13" (1/1) ... [2018-12-03 03:18:13,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 03:18:13,794 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 03:18:13,878 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:18:13,881 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 03:18:13,889 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:18:13,896 INFO L195 MainTranslator]: Completed translation [2018-12-03 03:18:13,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:13 WrapperNode [2018-12-03 03:18:13,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 03:18:13,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 03:18:13,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 03:18:13,897 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 03:18:13,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:13" (1/1) ... [2018-12-03 03:18:13,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:13" (1/1) ... [2018-12-03 03:18:13,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 03:18:13,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 03:18:13,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 03:18:13,908 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 03:18:13,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:13" (1/1) ... [2018-12-03 03:18:13,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:13" (1/1) ... [2018-12-03 03:18:13,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:13" (1/1) ... [2018-12-03 03:18:13,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:13" (1/1) ... [2018-12-03 03:18:13,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:13" (1/1) ... [2018-12-03 03:18:13,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:13" (1/1) ... [2018-12-03 03:18:13,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:13" (1/1) ... [2018-12-03 03:18:13,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 03:18:13,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 03:18:13,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 03:18:13,948 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 03:18:13,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/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 [2018-12-03 03:18:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 03:18:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 03:18:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 03:18:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 03:18:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 03:18:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 03:18:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-03 03:18:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-03 03:18:14,056 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 03:18:14,056 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 03:18:14,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:18:14 BoogieIcfgContainer [2018-12-03 03:18:14,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 03:18:14,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 03:18:14,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 03:18:14,058 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 03:18:14,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 03:18:13" (1/3) ... [2018-12-03 03:18:14,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4b2af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:18:14, skipping insertion in model container [2018-12-03 03:18:14,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:13" (2/3) ... [2018-12-03 03:18:14,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4b2af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:18:14, skipping insertion in model container [2018-12-03 03:18:14,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:18:14" (3/3) ... [2018-12-03 03:18:14,060 INFO L112 eAbstractionObserver]: Analyzing ICFG Double_div_true-unreach-call.i [2018-12-03 03:18:14,066 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 03:18:14,070 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 03:18:14,078 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 03:18:14,097 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 03:18:14,097 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 03:18:14,097 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 03:18:14,097 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 03:18:14,097 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 03:18:14,097 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 03:18:14,097 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 03:18:14,097 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 03:18:14,108 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-03 03:18:14,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-03 03:18:14,112 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:18:14,113 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:18:14,114 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:18:14,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:18:14,117 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2018-12-03 03:18:14,119 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:18:14,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:14,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:18:14,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:18:14,147 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:18:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 03:18:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 03:18:14,182 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 03:18:14,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:18:14 BoogieIcfgContainer [2018-12-03 03:18:14,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 03:18:14,196 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 03:18:14,196 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 03:18:14,196 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 03:18:14,197 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:18:14" (3/4) ... [2018-12-03 03:18:14,199 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-03 03:18:14,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 03:18:14,200 INFO L168 Benchmark]: Toolchain (without parser) took 423.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -125.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:18:14,201 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:18:14,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 119.60 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 942.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-03 03:18:14,202 INFO L168 Benchmark]: Boogie Procedure Inliner took 10.89 ms. Allocated memory is still 1.0 GB. Free memory is still 942.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:18:14,202 INFO L168 Benchmark]: Boogie Preprocessor took 39.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 942.7 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-12-03 03:18:14,202 INFO L168 Benchmark]: RCFGBuilder took 108.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-12-03 03:18:14,203 INFO L168 Benchmark]: TraceAbstraction took 139.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-03 03:18:14,203 INFO L168 Benchmark]: Witness Printer took 3.19 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. [2018-12-03 03:18:14,205 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 119.60 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 942.7 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 10.89 ms. Allocated memory is still 1.0 GB. Free memory is still 942.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 942.7 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 108.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 139.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 2]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of someBinaryArithmeticDOUBLEoperation at line 10. Possible FailurePath: [L9] double x = 1.0; [L10] double x1 = x/2.5; VAL [x=1] [L12] COND FALSE !(x1 != x) VAL [x=1] [L18] CALL __VERIFIER_assert(x == 0) VAL [\old(cond)=0] [L2] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L2] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-635dfa2 [2018-12-03 03:18:15,479 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 03:18:15,481 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 03:18:15,490 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 03:18:15,490 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 03:18:15,491 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 03:18:15,492 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 03:18:15,493 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 03:18:15,494 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 03:18:15,494 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 03:18:15,495 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 03:18:15,495 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 03:18:15,496 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 03:18:15,497 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 03:18:15,497 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 03:18:15,498 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 03:18:15,499 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 03:18:15,500 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 03:18:15,501 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 03:18:15,502 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 03:18:15,503 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 03:18:15,504 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 03:18:15,505 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 03:18:15,505 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 03:18:15,506 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 03:18:15,506 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 03:18:15,507 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 03:18:15,507 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 03:18:15,507 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 03:18:15,508 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 03:18:15,508 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 03:18:15,508 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 03:18:15,508 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 03:18:15,508 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 03:18:15,509 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 03:18:15,509 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 03:18:15,509 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-03 03:18:15,516 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 03:18:15,517 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 03:18:15,517 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 03:18:15,517 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 03:18:15,517 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 03:18:15,517 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 03:18:15,517 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 03:18:15,518 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 03:18:15,518 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 03:18:15,518 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 03:18:15,518 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 03:18:15,518 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 03:18:15,518 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 03:18:15,518 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 03:18:15,518 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 03:18:15,519 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 03:18:15,519 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 03:18:15,519 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-03 03:18:15,519 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-03 03:18:15,519 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 03:18:15,519 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 03:18:15,519 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 03:18:15,519 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 03:18:15,519 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 03:18:15,519 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 03:18:15,519 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 03:18:15,520 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 03:18:15,520 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 03:18:15,520 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 03:18:15,520 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 03:18:15,520 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 03:18:15,520 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-03 03:18:15,520 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 03:18:15,520 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-03 03:18:15,520 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-03 03:18:15,520 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan 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 -> Taipan 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 -> 8571d6e044ba86c3b82c24f6ff451bf497f2aedf [2018-12-03 03:18:15,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 03:18:15,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 03:18:15,551 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 03:18:15,553 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 03:18:15,553 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 03:18:15,554 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-12-03 03:18:15,598 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/data/78501575c/c1f8217f0fbd429ebec1690e66a5a255/FLAGb86993293 [2018-12-03 03:18:16,005 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 03:18:16,006 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-12-03 03:18:16,011 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/data/78501575c/c1f8217f0fbd429ebec1690e66a5a255/FLAGb86993293 [2018-12-03 03:18:16,019 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/data/78501575c/c1f8217f0fbd429ebec1690e66a5a255 [2018-12-03 03:18:16,021 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 03:18:16,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 03:18:16,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 03:18:16,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 03:18:16,025 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 03:18:16,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:18:16" (1/1) ... [2018-12-03 03:18:16,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f4428e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:16, skipping insertion in model container [2018-12-03 03:18:16,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:18:16" (1/1) ... [2018-12-03 03:18:16,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 03:18:16,046 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 03:18:16,138 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:18:16,143 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 03:18:16,151 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:18:16,159 INFO L195 MainTranslator]: Completed translation [2018-12-03 03:18:16,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:16 WrapperNode [2018-12-03 03:18:16,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 03:18:16,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 03:18:16,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 03:18:16,160 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 03:18:16,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:16" (1/1) ... [2018-12-03 03:18:16,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:16" (1/1) ... [2018-12-03 03:18:16,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 03:18:16,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 03:18:16,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 03:18:16,173 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 03:18:16,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:16" (1/1) ... [2018-12-03 03:18:16,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:16" (1/1) ... [2018-12-03 03:18:16,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:16" (1/1) ... [2018-12-03 03:18:16,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:16" (1/1) ... [2018-12-03 03:18:16,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:16" (1/1) ... [2018-12-03 03:18:16,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:16" (1/1) ... [2018-12-03 03:18:16,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:16" (1/1) ... [2018-12-03 03:18:16,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 03:18:16,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 03:18:16,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 03:18:16,189 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 03:18:16,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/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 [2018-12-03 03:18:16,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 03:18:16,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 03:18:16,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 03:18:16,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 03:18:16,250 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 03:18:16,250 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 03:18:16,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-03 03:18:16,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-03 03:18:16,921 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 03:18:16,921 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 03:18:16,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:18:16 BoogieIcfgContainer [2018-12-03 03:18:16,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 03:18:16,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 03:18:16,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 03:18:16,924 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 03:18:16,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 03:18:16" (1/3) ... [2018-12-03 03:18:16,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a238ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:18:16, skipping insertion in model container [2018-12-03 03:18:16,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:18:16" (2/3) ... [2018-12-03 03:18:16,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a238ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:18:16, skipping insertion in model container [2018-12-03 03:18:16,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:18:16" (3/3) ... [2018-12-03 03:18:16,926 INFO L112 eAbstractionObserver]: Analyzing ICFG Double_div_true-unreach-call.i [2018-12-03 03:18:16,932 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 03:18:16,935 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 03:18:16,944 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 03:18:16,961 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-03 03:18:16,961 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 03:18:16,961 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 03:18:16,961 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 03:18:16,961 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 03:18:16,961 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 03:18:16,962 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 03:18:16,962 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 03:18:16,962 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 03:18:16,971 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-03 03:18:16,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-03 03:18:16,974 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:18:16,975 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:18:16,976 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:18:16,979 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:18:16,979 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2018-12-03 03:18:16,982 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:18:16,982 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/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 [2018-12-03 03:18:16,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:18:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:18:17,147 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:18:19,838 WARN L180 SmtUtils]: Spent 2.68 s on a formula simplification that was a NOOP. DAG size: 11 [2018-12-03 03:18:19,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:19,845 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:18:19,857 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:18:19,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 03:18:19,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 03:18:19,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 03:18:19,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 03:18:19,870 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-12-03 03:18:20,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:18:20,918 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-12-03 03:18:21,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 03:18:21,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-03 03:18:21,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:18:21,490 INFO L225 Difference]: With dead ends: 31 [2018-12-03 03:18:21,490 INFO L226 Difference]: Without dead ends: 12 [2018-12-03 03:18:21,492 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 03:18:21,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-03 03:18:21,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-03 03:18:21,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-03 03:18:21,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-12-03 03:18:21,512 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-12-03 03:18:21,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:18:21,513 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-12-03 03:18:21,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 03:18:21,513 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-12-03 03:18:21,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-03 03:18:21,513 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:18:21,513 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:18:21,514 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:18:21,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:18:21,514 INFO L82 PathProgramCache]: Analyzing trace with hash -429188558, now seen corresponding path program 1 times [2018-12-03 03:18:21,514 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:18:21,514 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/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 [2018-12-03 03:18:21,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:18:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:18:21,800 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:18:25,239 WARN L180 SmtUtils]: Spent 1.66 s on a formula simplification that was a NOOP. DAG size: 12 [2018-12-03 03:18:25,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:25,241 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 03:18:29,759 WARN L854 $PredicateComparison]: unable to prove that (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x1~0)) is different from true [2018-12-03 03:18:29,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2018-12-03 03:18:29,777 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:18:29,777 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 03:18:29,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:18:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2018-12-03 03:18:42,965 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-03 03:18:42,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-12-03 03:18:42,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 03:18:42,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 03:18:42,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2018-12-03 03:18:42,967 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 6 states. [2018-12-03 03:18:45,162 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (= c_main_~x1~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0)) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 .cse0) c_main_~x1~0)) (not (fp.eq c_main_~x1~0 c_main_~x~0)))) is different from true [2018-12-03 03:18:46,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:18:46,637 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-12-03 03:18:46,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 03:18:46,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-12-03 03:18:46,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:18:46,638 INFO L225 Difference]: With dead ends: 19 [2018-12-03 03:18:46,638 INFO L226 Difference]: Without dead ends: 14 [2018-12-03 03:18:46,639 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=12, Invalid=14, Unknown=2, NotChecked=14, Total=42 [2018-12-03 03:18:46,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-03 03:18:46,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-12-03 03:18:46,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-03 03:18:46,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-12-03 03:18:46,641 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-12-03 03:18:46,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:18:46,642 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-12-03 03:18:46,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 03:18:46,642 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-12-03 03:18:46,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-03 03:18:46,642 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:18:46,643 INFO L402 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:18:46,643 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:18:46,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:18:46,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1003863954, now seen corresponding path program 2 times [2018-12-03 03:18:46,643 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:18:46,643 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-03 03:18:46,647 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-03 03:18:47,175 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-03 03:18:47,176 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 03:18:47,218 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:18:54,607 WARN L180 SmtUtils]: Spent 2.12 s on a formula simplification that was a NOOP. DAG size: 14 [2018-12-03 03:18:54,610 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:18:54,610 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 03:19:34,758 WARN L180 SmtUtils]: Spent 10.76 s on a formula simplification that was a NOOP. DAG size: 11 [2018-12-03 03:19:37,128 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-12-03 03:19:39,508 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2018-12-03 03:19:42,060 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) is different from false [2018-12-03 03:19:44,617 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) is different from true [2018-12-03 03:19:44,630 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2018-12-03 03:19:44,645 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:19:44,645 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 03:19:44,652 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-03 03:19:57,978 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-03 03:19:57,978 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2018-12-03 03:19:59,857 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-03 03:19:59,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 13 [2018-12-03 03:19:59,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-03 03:19:59,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-03 03:19:59,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=78, Unknown=11, NotChecked=38, Total=156 [2018-12-03 03:19:59,858 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 13 states. [2018-12-03 03:20:02,441 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 .cse2))) (= c_main_~x1~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1)) (or (fp.eq c_main_~x~0 .cse2) (not (fp.eq c_main_~x1~0 c_main_~x~0))))) is different from true [2018-12-03 03:20:04,846 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (= c_main_~x1~0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) .cse0)) (let ((.cse1 (fp.div roundNearestTiesToEven c_main_~x1~0 .cse0))) (or (fp.eq .cse1 .cse2) (not (fp.eq (fp.div roundNearestTiesToEven .cse1 .cse0) .cse1)))) (or (fp.eq c_main_~x~0 .cse2) (not (fp.eq c_main_~x1~0 c_main_~x~0))))) is different from true [2018-12-03 03:20:11,952 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (or (fp.eq c_main_~x1~0 .cse0) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x1~0))) (or (fp.eq c_main_~x~0 .cse0) (not (fp.eq c_main_~x1~0 c_main_~x~0))))) is different from false [2018-12-03 03:20:15,868 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (fp.eq c_main_~x~0 .cse0) (or (fp.eq c_main_~x1~0 .cse0) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x1~0))))) is different from false [2018-12-03 03:20:33,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:20:33,294 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2018-12-03 03:20:33,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-03 03:20:33,294 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 13 [2018-12-03 03:20:33,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:20:33,295 INFO L225 Difference]: With dead ends: 26 [2018-12-03 03:20:33,295 INFO L226 Difference]: Without dead ends: 17 [2018-12-03 03:20:33,296 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 73.3s TimeCoverageRelationStatistics Valid=41, Invalid=100, Unknown=15, NotChecked=150, Total=306 [2018-12-03 03:20:33,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-12-03 03:20:33,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-12-03 03:20:33,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-03 03:20:33,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-12-03 03:20:33,300 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 13 [2018-12-03 03:20:33,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:20:33,301 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-12-03 03:20:33,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-03 03:20:33,301 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-12-03 03:20:33,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-03 03:20:33,301 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:20:33,302 INFO L402 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:20:33,302 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:20:33,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:20:33,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1183011997, now seen corresponding path program 3 times [2018-12-03 03:20:33,302 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:20:33,302 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-03 03:20:33,305 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-12-03 03:20:34,033 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-03 03:20:34,033 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 03:20:34,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:20:37,854 WARN L180 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 7 [2018-12-03 03:20:40,255 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x~0) (not (fp.eq c_main_~x~0 v_main_~x~0_13)))) (= c_main_~x1~0 (fp.div roundNearestTiesToEven c_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) is different from false [2018-12-03 03:20:42,449 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x~0) (not (fp.eq c_main_~x~0 v_main_~x~0_13)))) (= c_main_~x1~0 (fp.div roundNearestTiesToEven c_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) is different from true [2018-12-03 03:20:44,838 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x~0) (not (fp.eq c_main_~x~0 v_main_~x~0_13)))) (fp.eq (fp.div roundNearestTiesToEven c_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x~0)) is different from false [2018-12-03 03:20:47,036 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x~0) (not (fp.eq c_main_~x~0 v_main_~x~0_13)))) (fp.eq (fp.div roundNearestTiesToEven c_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x~0)) is different from true [2018-12-03 03:20:59,361 WARN L832 $PredicateComparison]: unable to prove that (or (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_13 .cse1))) (and (not (fp.eq .cse0 v_main_~x~0_13)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) (= |c___VERIFIER_assert_#in~cond| (_ bv0 32))) (and (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 (fp.div roundNearestTiesToEven v_prenex_2 .cse3))) (and (fp.eq (fp.div roundNearestTiesToEven .cse2 .cse3) .cse2) (not (fp.eq .cse2 v_prenex_2)) (fp.eq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2018-12-03 03:21:11,677 WARN L832 $PredicateComparison]: unable to prove that (or (and (= (_ bv0 32) c___VERIFIER_assert_~cond) (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_13 .cse1))) (and (not (fp.eq .cse0 v_main_~x~0_13)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)))))) (and (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 (fp.div roundNearestTiesToEven v_prenex_2 .cse3))) (and (fp.eq (fp.div roundNearestTiesToEven .cse2 .cse3) .cse2) (not (fp.eq .cse2 v_prenex_2)) (fp.eq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2018-12-03 03:21:18,856 WARN L832 $PredicateComparison]: unable to prove that (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_13 .cse1))) (and (not (fp.eq .cse0 v_main_~x~0_13)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-12-03 03:21:21,193 WARN L854 $PredicateComparison]: unable to prove that (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_13 .cse1))) (and (not (fp.eq .cse0 v_main_~x~0_13)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2018-12-03 03:21:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 1 not checked. [2018-12-03 03:21:21,195 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 03:21:31,185 WARN L832 $PredicateComparison]: unable to prove that (or (fp.eq c_main_~x1~0 c_main_~x~0) (fp.eq c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x1~0))) is different from false [2018-12-03 03:21:39,925 WARN L832 $PredicateComparison]: unable to prove that (forall ((v_main_~x~0_15 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_15 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 v_main_~x~0_15))))) is different from false [2018-12-03 03:21:42,329 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_main_~x~0_15 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_15 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 v_main_~x~0_15))))) is different from true [2018-12-03 03:22:15,921 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 03:22:15,921 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 03:22:15,928 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-03 03:22:46,071 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-12-03 03:22:46,072 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (8)] Forcibly destroying the process [2018-12-03 03:22:48,318 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-12-03 03:22:48,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-12-03 03:22:48,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 03:22:48,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 03:22:48,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=32, Unknown=12, NotChecked=112, Total=182 [2018-12-03 03:22:48,319 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 8 states. [2018-12-03 03:22:50,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:22:50,775 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-12-03 03:22:51,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 03:22:51,167 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-12-03 03:22:51,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:22:51,167 INFO L225 Difference]: With dead ends: 17 [2018-12-03 03:22:51,167 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 03:22:51,168 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.5s TimeCoverageRelationStatistics Valid=26, Invalid=32, Unknown=12, NotChecked=112, Total=182 [2018-12-03 03:22:51,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 03:22:51,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 03:22:51,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 03:22:51,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 03:22:51,168 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-12-03 03:22:51,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:22:51,169 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 03:22:51,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 03:22:51,169 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 03:22:51,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 03:22:51,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 03:22:52,884 WARN L180 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 44 DAG size of output: 1 [2018-12-03 03:23:12,823 WARN L180 SmtUtils]: Spent 19.94 s on a formula simplification that was a NOOP. DAG size: 18 [2018-12-03 03:24:37,637 WARN L180 SmtUtils]: Spent 1.41 m on a formula simplification. DAG size of input: 35 DAG size of output: 23 [2018-12-03 03:24:37,639 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-03 03:24:37,639 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 03:24:37,639 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 03:24:37,639 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-03 03:24:37,639 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 03:24:37,639 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 03:24:37,640 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 7 20) the Hoare annotation is: true [2018-12-03 03:24:37,640 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 7 20) no Hoare annotation was computed. [2018-12-03 03:24:37,640 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-12-03 03:24:37,640 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 7 20) no Hoare annotation was computed. [2018-12-03 03:24:37,640 INFO L444 ceAbstractionStarter]: At program point L12-2(lines 12 16) the Hoare annotation is: (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (= main_~x1~0 (fp.div roundNearestTiesToEven main_~x~0 .cse1)))) (or (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) main_~x~0) (not (fp.eq main_~x~0 v_main_~x~0_13)))) .cse0) (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) main_~x~0) (not (fp.eq (fp.div roundNearestTiesToEven main_~x1~0 .cse1) main_~x1~0)) .cse0)))) [2018-12-03 03:24:37,640 INFO L444 ceAbstractionStarter]: At program point L12-3(lines 12 16) the Hoare annotation is: (or (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) main_~x~0) (not (fp.eq main_~x~0 v_main_~x~0_13)))) (fp.eq (fp.div roundNearestTiesToEven main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) main_~x~0)) (fp.eq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) [2018-12-03 03:24:37,640 INFO L448 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2018-12-03 03:24:37,640 INFO L448 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2018-12-03 03:24:37,640 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2018-12-03 03:24:37,641 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2018-12-03 03:24:37,641 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2018-12-03 03:24:37,641 INFO L448 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2018-12-03 03:24:37,647 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,647 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-03 03:24:37,647 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,648 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-03 03:24:37,648 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,648 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,648 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,648 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,648 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,649 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,649 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,652 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,652 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-03 03:24:37,652 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,652 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-03 03:24:37,652 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,652 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,653 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,653 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,653 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,653 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,653 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:24:37 BoogieIcfgContainer [2018-12-03 03:24:37,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 03:24:37,655 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 03:24:37,655 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 03:24:37,655 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 03:24:37,656 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:18:16" (3/4) ... [2018-12-03 03:24:37,658 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 03:24:37,662 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 03:24:37,663 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 03:24:37,663 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-03 03:24:37,665 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-03 03:24:37,665 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-03 03:24:37,665 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 03:24:37,681 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_main_~x~0_13 : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~x~0_13, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == x && !~fp.eq~DOUBLE(x, v_main_~x~0_13)) && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) || ((~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x && !~fp.eq~DOUBLE(~fp.div~DOUBLE(~roundNearestTiesToEven, x1, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)), x1)) && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) [2018-12-03 03:24:37,688 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_acee92c6-962d-4213-832b-7f2979d45eb1/bin-2019/utaipan/witness.graphml [2018-12-03 03:24:37,688 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 03:24:37,688 INFO L168 Benchmark]: Toolchain (without parser) took 381667.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.7 MB in the beginning and 954.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 124.5 MB. Max. memory is 11.5 GB. [2018-12-03 03:24:37,689 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:24:37,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.97 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-03 03:24:37,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.73 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:24:37,690 INFO L168 Benchmark]: Boogie Preprocessor took 15.24 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-03 03:24:37,690 INFO L168 Benchmark]: RCFGBuilder took 733.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-03 03:24:37,690 INFO L168 Benchmark]: TraceAbstraction took 380732.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 960.7 MB in the end (delta: 143.1 MB). Peak memory consumption was 143.1 MB. Max. memory is 11.5 GB. [2018-12-03 03:24:37,691 INFO L168 Benchmark]: Witness Printer took 32.76 ms. Allocated memory is still 1.2 GB. Free memory was 960.7 MB in the beginning and 954.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-03 03:24:37,693 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.97 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.73 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.24 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 733.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 380732.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 960.7 MB in the end (delta: 143.1 MB). Peak memory consumption was 143.1 MB. Max. memory is 11.5 GB. * Witness Printer took 32.76 ms. Allocated memory is still 1.2 GB. Free memory was 960.7 MB in the beginning and 954.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] - 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: 2]: 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: 12]: Loop Invariant [2018-12-03 03:24:37,698 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,698 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-03 03:24:37,698 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,698 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-03 03:24:37,699 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,699 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,699 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,699 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,699 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,699 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,699 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,700 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,700 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-03 03:24:37,700 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,701 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-12-03 03:24:37,701 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,701 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,701 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,701 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,701 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,701 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:24:37,701 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists v_main_~x~0_13 : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~x~0_13, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == x && !~fp.eq~DOUBLE(x, v_main_~x~0_13)) && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) || ((~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x && !~fp.eq~DOUBLE(~fp.div~DOUBLE(~roundNearestTiesToEven, x1, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)), x1)) && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 380.6s OverallTime, 4 OverallIterations, 6 TraceHistogramMax, 41.5s AutomataDifference, 0.0s DeadEndRemovalTime, 106.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 40 SDtfs, 2 SDslu, 95 SDs, 0 SdLazy, 47 SolverSat, 7 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 20.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 52 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 15 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 125.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 21 NumberOfFragments, 81 HoareAnnotationTreeSize, 12 FomulaSimplifications, 290 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 240 FormulaSimplificationTreeSizeReductionInter, 106.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 57.1s SatisfiabilityAnalysisTime, 170.0s InterpolantComputationTime, 90 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 68 ConstructedInterpolants, 5 QuantifiedInterpolants, 7423 SizeOfPredicates, 12 NumberOfNonLiveVariables, 100 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 20/35 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...