./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0971.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0971.c -s /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1aaf670562012dae9985b4d351583e88df305330 ....................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0971.c -s /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1aaf670562012dae9985b4d351583e88df305330 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 13:11:14,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:11:14,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:11:14,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:11:14,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:11:14,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:11:14,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:11:14,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:11:14,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:11:14,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:11:14,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:11:14,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:11:14,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:11:14,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:11:14,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:11:14,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:11:14,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:11:14,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:11:14,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:11:14,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:11:14,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:11:14,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:11:14,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:11:14,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:11:14,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:11:14,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:11:14,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:11:14,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:11:14,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:11:14,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:11:14,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:11:14,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:11:14,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:11:14,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:11:14,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:11:14,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:11:14,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:11:14,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:11:14,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:11:14,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:11:14,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:11:14,636 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 13:11:14,645 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:11:14,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:11:14,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:11:14,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:11:14,646 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:11:14,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:11:14,646 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:11:14,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:11:14,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:11:14,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:11:14,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:11:14,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:11:14,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:11:14,647 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:11:14,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:11:14,647 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:11:14,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:11:14,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:11:14,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:11:14,647 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:11:14,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:11:14,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:11:14,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:11:14,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:11:14,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:11:14,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:11:14,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:11:14,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:11:14,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:11:14,649 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1aaf670562012dae9985b4d351583e88df305330 [2019-12-07 13:11:14,748 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:11:14,759 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:11:14,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:11:14,763 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:11:14,763 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:11:14,764 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2019-12-07 13:11:14,805 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/data/853cb3723/c6151c8bc743491db20357f31c5e174c/FLAG0c32d009b [2019-12-07 13:11:15,127 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:11:15,128 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2019-12-07 13:11:15,134 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/data/853cb3723/c6151c8bc743491db20357f31c5e174c/FLAG0c32d009b [2019-12-07 13:11:15,143 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/data/853cb3723/c6151c8bc743491db20357f31c5e174c [2019-12-07 13:11:15,145 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:11:15,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:11:15,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:11:15,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:11:15,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:11:15,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:11:15" (1/1) ... [2019-12-07 13:11:15,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:15, skipping insertion in model container [2019-12-07 13:11:15,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:11:15" (1/1) ... [2019-12-07 13:11:15,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:11:15,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:11:15,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:11:15,349 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:11:15,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:11:15,391 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:11:15,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:15 WrapperNode [2019-12-07 13:11:15,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:11:15,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:11:15,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:11:15,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:11:15,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:15" (1/1) ... [2019-12-07 13:11:15,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:15" (1/1) ... [2019-12-07 13:11:15,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:11:15,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:11:15,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:11:15,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:11:15,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:15" (1/1) ... [2019-12-07 13:11:15,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:15" (1/1) ... [2019-12-07 13:11:15,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:15" (1/1) ... [2019-12-07 13:11:15,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:15" (1/1) ... [2019-12-07 13:11:15,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:15" (1/1) ... [2019-12-07 13:11:15,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:15" (1/1) ... [2019-12-07 13:11:15,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:15" (1/1) ... [2019-12-07 13:11:15,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:11:15,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:11:15,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:11:15,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:11:15,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:11:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:11:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 13:11:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 13:11:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 13:11:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:11:15,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:11:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 13:11:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:11:15,735 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:11:15,735 INFO L287 CfgBuilder]: Removed 22 assume(true) statements. [2019-12-07 13:11:15,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:11:15 BoogieIcfgContainer [2019-12-07 13:11:15,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:11:15,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:11:15,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:11:15,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:11:15,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:11:15" (1/3) ... [2019-12-07 13:11:15,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5320e39a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:11:15, skipping insertion in model container [2019-12-07 13:11:15,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:15" (2/3) ... [2019-12-07 13:11:15,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5320e39a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:11:15, skipping insertion in model container [2019-12-07 13:11:15,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:11:15" (3/3) ... [2019-12-07 13:11:15,741 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0971.c [2019-12-07 13:11:15,747 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:11:15,751 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:11:15,758 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:11:15,773 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:11:15,773 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:11:15,773 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:11:15,773 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:11:15,774 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:11:15,774 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:11:15,774 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:11:15,774 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:11:15,783 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-12-07 13:11:15,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 13:11:15,787 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:11:15,787 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:11:15,788 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:11:15,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:11:15,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1032073611, now seen corresponding path program 1 times [2019-12-07 13:11:15,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:11:15,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373031167] [2019-12-07 13:11:15,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:11:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:11:15,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:11:15,887 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373031167] [2019-12-07 13:11:15,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:11:15,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:11:15,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328794990] [2019-12-07 13:11:15,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:11:15,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:11:15,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:11:15,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:11:15,901 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-12-07 13:11:15,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:11:15,914 INFO L93 Difference]: Finished difference Result 82 states and 136 transitions. [2019-12-07 13:11:15,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:11:15,915 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 13:11:15,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:11:15,922 INFO L225 Difference]: With dead ends: 82 [2019-12-07 13:11:15,922 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 13:11:15,924 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:11:15,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 13:11:15,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 13:11:15,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 13:11:15,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-12-07 13:11:15,948 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 10 [2019-12-07 13:11:15,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:11:15,948 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-12-07 13:11:15,948 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:11:15,948 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-12-07 13:11:15,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 13:11:15,948 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:11:15,949 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:11:15,949 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:11:15,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:11:15,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1303233586, now seen corresponding path program 1 times [2019-12-07 13:11:15,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:11:15,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686011092] [2019-12-07 13:11:15,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:11:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:11:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:11:16,024 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:11:16,024 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:11:16,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:11:16 BoogieIcfgContainer [2019-12-07 13:11:16,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:11:16,050 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:11:16,050 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:11:16,050 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:11:16,051 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:11:15" (3/4) ... [2019-12-07 13:11:16,053 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 13:11:16,053 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:11:16,055 INFO L168 Benchmark]: Toolchain (without parser) took 908.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 945.2 MB in the beginning and 1.0 GB in the end (delta: -84.8 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:11:16,055 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:11:16,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:11:16,056 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:11:16,057 INFO L168 Benchmark]: Boogie Preprocessor took 25.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:11:16,057 INFO L168 Benchmark]: RCFGBuilder took 286.21 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: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2019-12-07 13:11:16,058 INFO L168 Benchmark]: TraceAbstraction took 313.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:11:16,058 INFO L168 Benchmark]: Witness Printer took 2.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:11:16,061 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 245.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 286.21 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: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 313.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 175]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 161, overapproximation of bitwiseOr at line 132, overapproximation of someBinaryArithmeticDOUBLEoperation at line 133. Possible FailurePath: [L17-L26] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L28] static const double zero = 0.0; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L116] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L170] double x = 0.0 / 0.0; [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L131] COND TRUE hx < 0x00100000 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L132] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L133] return -two54_log10 / zero_log10; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L171] double res = __ieee754_log10(x); [L161] return x != x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L174] COND TRUE !isnan_double(res) [L175] __VERIFIER_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 13:11:17,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:11:17,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:11:17,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:11:17,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:11:17,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:11:17,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:11:17,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:11:17,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:11:17,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:11:17,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:11:17,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:11:17,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:11:17,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:11:17,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:11:17,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:11:17,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:11:17,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:11:17,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:11:17,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:11:17,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:11:17,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:11:17,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:11:17,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:11:17,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:11:17,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:11:17,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:11:17,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:11:17,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:11:17,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:11:17,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:11:17,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:11:17,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:11:17,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:11:17,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:11:17,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:11:17,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:11:17,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:11:17,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:11:17,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:11:17,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:11:17,504 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 13:11:17,514 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:11:17,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:11:17,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:11:17,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:11:17,516 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:11:17,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:11:17,516 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:11:17,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:11:17,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:11:17,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:11:17,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:11:17,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:11:17,517 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 13:11:17,517 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 13:11:17,517 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:11:17,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:11:17,517 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:11:17,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:11:17,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:11:17,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:11:17,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:11:17,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:11:17,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:11:17,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:11:17,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:11:17,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:11:17,519 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 13:11:17,519 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 13:11:17,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:11:17,519 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:11:17,519 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:11:17,519 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1aaf670562012dae9985b4d351583e88df305330 [2019-12-07 13:11:17,680 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:11:17,690 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:11:17,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:11:17,694 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:11:17,694 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:11:17,695 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2019-12-07 13:11:17,735 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/data/4341229e3/71fbb1ec2a9d4c02b9ae0e3e71b6c394/FLAG01efeb6d8 [2019-12-07 13:11:18,060 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:11:18,060 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2019-12-07 13:11:18,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/data/4341229e3/71fbb1ec2a9d4c02b9ae0e3e71b6c394/FLAG01efeb6d8 [2019-12-07 13:11:18,074 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/data/4341229e3/71fbb1ec2a9d4c02b9ae0e3e71b6c394 [2019-12-07 13:11:18,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:11:18,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:11:18,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:11:18,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:11:18,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:11:18,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:11:18" (1/1) ... [2019-12-07 13:11:18,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41944eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:18, skipping insertion in model container [2019-12-07 13:11:18,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:11:18" (1/1) ... [2019-12-07 13:11:18,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:11:18,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:11:18,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:11:18,244 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:11:18,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:11:18,326 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:11:18,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:18 WrapperNode [2019-12-07 13:11:18,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:11:18,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:11:18,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:11:18,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:11:18,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:18" (1/1) ... [2019-12-07 13:11:18,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:18" (1/1) ... [2019-12-07 13:11:18,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:11:18,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:11:18,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:11:18,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:11:18,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:18" (1/1) ... [2019-12-07 13:11:18,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:18" (1/1) ... [2019-12-07 13:11:18,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:18" (1/1) ... [2019-12-07 13:11:18,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:18" (1/1) ... [2019-12-07 13:11:18,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:18" (1/1) ... [2019-12-07 13:11:18,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:18" (1/1) ... [2019-12-07 13:11:18,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:18" (1/1) ... [2019-12-07 13:11:18,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:11:18,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:11:18,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:11:18,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:11:18,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:11:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 13:11:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 13:11:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:11:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 13:11:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:11:18,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:11:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 13:11:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:11:48,128 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:11:48,128 INFO L287 CfgBuilder]: Removed 22 assume(true) statements. [2019-12-07 13:11:48,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:11:48 BoogieIcfgContainer [2019-12-07 13:11:48,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:11:48,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:11:48,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:11:48,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:11:48,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:11:18" (1/3) ... [2019-12-07 13:11:48,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@974c4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:11:48, skipping insertion in model container [2019-12-07 13:11:48,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:11:18" (2/3) ... [2019-12-07 13:11:48,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@974c4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:11:48, skipping insertion in model container [2019-12-07 13:11:48,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:11:48" (3/3) ... [2019-12-07 13:11:48,133 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0971.c [2019-12-07 13:11:48,139 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:11:48,144 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:11:48,151 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:11:48,166 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:11:48,166 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:11:48,166 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:11:48,166 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:11:48,166 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:11:48,166 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:11:48,167 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:11:48,167 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:11:48,176 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-12-07 13:11:48,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 13:11:48,180 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:11:48,180 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:11:48,181 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:11:48,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:11:48,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1032073611, now seen corresponding path program 1 times [2019-12-07 13:11:48,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:11:48,192 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101598575] [2019-12-07 13:11:48,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 13:11:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:11:49,027 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 13:11:49,031 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:11:49,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:11:49,042 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:11:49,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:11:49,046 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101598575] [2019-12-07 13:11:49,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:11:49,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 13:11:49,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511310486] [2019-12-07 13:11:49,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:11:49,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 13:11:49,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:11:49,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:11:49,067 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-12-07 13:11:49,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:11:49,081 INFO L93 Difference]: Finished difference Result 82 states and 136 transitions. [2019-12-07 13:11:49,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:11:49,082 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 13:11:49,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:11:49,091 INFO L225 Difference]: With dead ends: 82 [2019-12-07 13:11:49,092 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 13:11:49,094 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:11:49,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 13:11:49,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 13:11:49,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 13:11:49,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-12-07 13:11:49,121 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 10 [2019-12-07 13:11:49,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:11:49,121 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-12-07 13:11:49,121 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:11:49,121 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-12-07 13:11:49,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 13:11:49,122 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:11:49,122 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:11:49,323 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 13:11:49,324 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:11:49,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:11:49,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1303233586, now seen corresponding path program 1 times [2019-12-07 13:11:49,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:11:49,329 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271679423] [2019-12-07 13:11:49,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 13:11:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:11:50,223 INFO L264 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:11:50,225 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:11:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:11:50,318 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:11:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:11:50,410 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271679423] [2019-12-07 13:11:50,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:11:50,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 13:11:50,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905201777] [2019-12-07 13:11:50,412 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 13:11:50,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 13:11:50,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 13:11:50,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:11:50,412 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 6 states. [2019-12-07 13:11:54,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:11:54,032 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2019-12-07 13:11:54,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 13:11:54,033 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-12-07 13:11:54,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:11:54,034 INFO L225 Difference]: With dead ends: 49 [2019-12-07 13:11:54,035 INFO L226 Difference]: Without dead ends: 44 [2019-12-07 13:11:54,035 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-12-07 13:11:54,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-12-07 13:11:54,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2019-12-07 13:11:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 13:11:54,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2019-12-07 13:11:54,043 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 52 transitions. Word has length 11 [2019-12-07 13:11:54,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:11:54,044 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 52 transitions. [2019-12-07 13:11:54,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 13:11:54,044 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2019-12-07 13:11:54,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 13:11:54,044 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:11:54,045 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:11:54,245 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 13:11:54,247 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:11:54,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:11:54,248 INFO L82 PathProgramCache]: Analyzing trace with hash -593045937, now seen corresponding path program 1 times [2019-12-07 13:11:54,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:11:54,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2049614503] [2019-12-07 13:11:54,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 13:11:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:11:54,417 INFO L264 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 13:11:54,418 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:11:54,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:11:54,479 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:11:55,285 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-12-07 13:11:55,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:11:55,296 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2049614503] [2019-12-07 13:11:55,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:11:55,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 13:11:55,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300043473] [2019-12-07 13:11:55,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 13:11:55,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 13:11:55,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 13:11:55,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 13:11:55,298 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. Second operand 10 states. [2019-12-07 13:12:39,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:12:39,030 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2019-12-07 13:12:39,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 13:12:39,192 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2019-12-07 13:12:39,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:12:39,194 INFO L225 Difference]: With dead ends: 45 [2019-12-07 13:12:39,194 INFO L226 Difference]: Without dead ends: 40 [2019-12-07 13:12:39,194 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-12-07 13:12:39,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-12-07 13:12:39,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2019-12-07 13:12:39,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 13:12:39,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2019-12-07 13:12:39,203 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 11 [2019-12-07 13:12:39,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:12:39,203 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2019-12-07 13:12:39,203 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 13:12:39,203 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2019-12-07 13:12:39,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 13:12:39,205 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:12:39,205 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:12:39,405 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 13:12:39,406 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:12:39,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:12:39,407 INFO L82 PathProgramCache]: Analyzing trace with hash -197853759, now seen corresponding path program 1 times [2019-12-07 13:12:39,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:12:39,409 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719140459] [2019-12-07 13:12:39,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/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 [2019-12-07 13:12:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:12:40,358 INFO L264 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 13:12:40,360 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:12:40,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:12:40,460 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:12:44,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:12:44,545 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719140459] [2019-12-07 13:12:44,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:12:44,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 13:12:44,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380235002] [2019-12-07 13:12:44,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 13:12:44,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 13:12:44,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 13:12:44,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=35, Unknown=2, NotChecked=0, Total=56 [2019-12-07 13:12:44,547 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand 8 states. [2019-12-07 13:12:45,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:12:45,722 INFO L93 Difference]: Finished difference Result 68 states and 89 transitions. [2019-12-07 13:12:45,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:12:45,722 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-12-07 13:12:45,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:12:45,723 INFO L225 Difference]: With dead ends: 68 [2019-12-07 13:12:45,723 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 13:12:45,724 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=34, Invalid=54, Unknown=2, NotChecked=0, Total=90 [2019-12-07 13:12:45,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 13:12:45,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 13:12:45,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 13:12:45,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2019-12-07 13:12:45,728 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 20 [2019-12-07 13:12:45,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:12:45,729 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2019-12-07 13:12:45,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 13:12:45,729 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2019-12-07 13:12:45,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 13:12:45,729 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:12:45,730 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:12:45,930 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 13:12:45,931 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:12:45,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:12:45,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1415968622, now seen corresponding path program 1 times [2019-12-07 13:12:45,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:12:45,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794488257] [2019-12-07 13:12:45,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 13:12:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:12:47,053 INFO L264 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 13:12:47,056 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:12:47,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:12:47,144 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:12:47,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:12:47,223 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794488257] [2019-12-07 13:12:47,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:12:47,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 13:12:47,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147900659] [2019-12-07 13:12:47,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 13:12:47,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 13:12:47,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 13:12:47,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 13:12:47,224 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand 8 states. [2019-12-07 13:12:47,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:12:47,359 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2019-12-07 13:12:47,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:12:47,360 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2019-12-07 13:12:47,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:12:47,360 INFO L225 Difference]: With dead ends: 39 [2019-12-07 13:12:47,360 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 13:12:47,360 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-12-07 13:12:47,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 13:12:47,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 13:12:47,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 13:12:47,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 13:12:47,361 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-12-07 13:12:47,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:12:47,361 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:12:47,361 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 13:12:47,361 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 13:12:47,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 13:12:47,562 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 13:12:47,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 13:12:47,849 INFO L242 CegarLoopResult]: At program point L35-2(lines 35 40) the Hoare annotation is: false [2019-12-07 13:12:47,850 INFO L246 CegarLoopResult]: For program point L35-3(lines 35 40) no Hoare annotation was computed. [2019-12-07 13:12:47,850 INFO L246 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2019-12-07 13:12:47,850 INFO L246 CegarLoopResult]: For program point L69(lines 69 85) no Hoare annotation was computed. [2019-12-07 13:12:47,850 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 13:12:47,850 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 13:12:47,850 INFO L246 CegarLoopResult]: For program point L61-1(lines 61 66) no Hoare annotation was computed. [2019-12-07 13:12:47,850 INFO L242 CegarLoopResult]: At program point L61-2(lines 61 66) the Hoare annotation is: false [2019-12-07 13:12:47,850 INFO L246 CegarLoopResult]: For program point L61-3(lines 61 66) no Hoare annotation was computed. [2019-12-07 13:12:47,851 INFO L246 CegarLoopResult]: For program point L70(lines 70 77) no Hoare annotation was computed. [2019-12-07 13:12:47,851 INFO L242 CegarLoopResult]: At program point L161(line 161) the Hoare annotation is: (and (forall ((ULTIMATE.start___ieee754_log10_~lx~1 (_ BitVec 32))) (not (= (_ bv0 32) (bvor (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10_~hx~1) ULTIMATE.start___ieee754_log10_~lx~1)))) (= ULTIMATE.start___ieee754_log10_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= |ULTIMATE.start___ieee754_log10_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-12-07 13:12:47,851 INFO L246 CegarLoopResult]: For program point L79(lines 79 84) no Hoare annotation was computed. [2019-12-07 13:12:47,851 INFO L246 CegarLoopResult]: For program point L46(lines 46 47) no Hoare annotation was computed. [2019-12-07 13:12:47,851 INFO L246 CegarLoopResult]: For program point L104(lines 104 107) no Hoare annotation was computed. [2019-12-07 13:12:47,851 INFO L246 CegarLoopResult]: For program point L71(lines 71 76) no Hoare annotation was computed. [2019-12-07 13:12:47,851 INFO L246 CegarLoopResult]: For program point L96(lines 96 108) no Hoare annotation was computed. [2019-12-07 13:12:47,851 INFO L249 CegarLoopResult]: At program point L179(lines 163 180) the Hoare annotation is: true [2019-12-07 13:12:47,851 INFO L246 CegarLoopResult]: For program point L138-1(lines 138 142) no Hoare annotation was computed. [2019-12-07 13:12:47,852 INFO L242 CegarLoopResult]: At program point L138-2(lines 138 142) the Hoare annotation is: false [2019-12-07 13:12:47,852 INFO L246 CegarLoopResult]: For program point L131(lines 131 143) no Hoare annotation was computed. [2019-12-07 13:12:47,852 INFO L246 CegarLoopResult]: For program point L131-1(lines 118 158) no Hoare annotation was computed. [2019-12-07 13:12:47,852 INFO L246 CegarLoopResult]: For program point L98(lines 98 102) no Hoare annotation was computed. [2019-12-07 13:12:47,852 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 13:12:47,852 INFO L246 CegarLoopResult]: For program point L123-1(lines 123 128) no Hoare annotation was computed. [2019-12-07 13:12:47,852 INFO L242 CegarLoopResult]: At program point L123-2(lines 123 128) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_log10_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))))) [2019-12-07 13:12:47,852 INFO L246 CegarLoopResult]: For program point L123-3(lines 123 128) no Hoare annotation was computed. [2019-12-07 13:12:47,853 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2019-12-07 13:12:47,853 INFO L242 CegarLoopResult]: At program point L107(lines 30 109) the Hoare annotation is: false [2019-12-07 13:12:47,853 INFO L246 CegarLoopResult]: For program point L132(lines 132 133) no Hoare annotation was computed. [2019-12-07 13:12:47,853 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 13:12:47,853 INFO L242 CegarLoopResult]: At program point L157(lines 118 158) the Hoare annotation is: (and (forall ((ULTIMATE.start___ieee754_log10_~lx~1 (_ BitVec 32))) (not (= (_ bv0 32) (bvor (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10_~hx~1) ULTIMATE.start___ieee754_log10_~lx~1)))) (= ULTIMATE.start___ieee754_log10_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= |ULTIMATE.start___ieee754_log10_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 13:12:47,853 INFO L246 CegarLoopResult]: For program point L50-1(lines 50 54) no Hoare annotation was computed. [2019-12-07 13:12:47,853 INFO L242 CegarLoopResult]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2019-12-07 13:12:47,853 INFO L246 CegarLoopResult]: For program point L174(lines 174 177) no Hoare annotation was computed. [2019-12-07 13:12:47,853 INFO L246 CegarLoopResult]: For program point L150-1(lines 150 155) no Hoare annotation was computed. [2019-12-07 13:12:47,854 INFO L242 CegarLoopResult]: At program point L150-2(lines 150 155) the Hoare annotation is: false [2019-12-07 13:12:47,854 INFO L246 CegarLoopResult]: For program point L150-3(lines 150 155) no Hoare annotation was computed. [2019-12-07 13:12:47,854 INFO L246 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2019-12-07 13:12:47,854 INFO L246 CegarLoopResult]: For program point L43(lines 43 55) no Hoare annotation was computed. [2019-12-07 13:12:47,854 INFO L246 CegarLoopResult]: For program point L43-1(lines 30 109) no Hoare annotation was computed. [2019-12-07 13:12:47,854 INFO L246 CegarLoopResult]: For program point L134(lines 134 135) no Hoare annotation was computed. [2019-12-07 13:12:47,854 INFO L246 CegarLoopResult]: For program point L35-1(lines 35 40) no Hoare annotation was computed. [2019-12-07 13:12:47,861 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-12-07 13:12:47,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,865 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,865 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,867 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-12-07 13:12:47,867 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,867 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,867 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,867 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,867 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,868 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,868 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-12-07 13:12:47,868 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,868 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,869 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,869 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,869 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-12-07 13:12:47,869 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,869 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,870 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,870 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,870 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,870 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,870 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 13:12:47,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,871 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 13:12:47,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:12:47 BoogieIcfgContainer [2019-12-07 13:12:47,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:12:47,873 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:12:47,873 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:12:47,873 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:12:47,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:11:48" (3/4) ... [2019-12-07 13:12:47,875 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 13:12:47,885 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2019-12-07 13:12:47,886 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-12-07 13:12:47,886 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 13:12:47,905 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-12-07 13:12:47,906 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((forall ULTIMATE.start___ieee754_log10_~lx~1 : bv32 :: !(0bv32 == ~bvor32(~bvand32(2147483647bv32, hx), ULTIMATE.start___ieee754_log10_~lx~1))) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 13:12:47,906 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((forall ULTIMATE.start___ieee754_log10_~lx~1 : bv32 :: !(0bv32 == ~bvor32(~bvand32(2147483647bv32, hx), ULTIMATE.start___ieee754_log10_~lx~1))) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2019-12-07 13:12:47,946 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_77bee202-b3bd-4ba5-af7f-68fe9380eb25/bin/uautomizer/witness.graphml [2019-12-07 13:12:47,946 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:12:47,948 INFO L168 Benchmark]: Toolchain (without parser) took 89870.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 952.4 MB in the beginning and 848.6 MB in the end (delta: 103.8 MB). Peak memory consumption was 237.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:12:47,948 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:12:47,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:12:47,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:12:47,949 INFO L168 Benchmark]: Boogie Preprocessor took 30.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:12:47,949 INFO L168 Benchmark]: RCFGBuilder took 29735.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:12:47,949 INFO L168 Benchmark]: TraceAbstraction took 59742.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 855.5 MB in the end (delta: 213.1 MB). Peak memory consumption was 213.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:12:47,949 INFO L168 Benchmark]: Witness Printer took 73.81 ms. Allocated memory is still 1.2 GB. Free memory was 855.5 MB in the beginning and 848.6 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:12:47,951 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 249.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 29735.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 59742.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 855.5 MB in the end (delta: 213.1 MB). Peak memory consumption was 213.1 MB. Max. memory is 11.5 GB. * Witness Printer took 73.81 ms. Allocated memory is still 1.2 GB. Free memory was 855.5 MB in the beginning and 848.6 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,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[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: 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: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 161]: Loop Invariant [2019-12-07 13:12:47,955 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-12-07 13:12:47,955 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,956 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,956 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,957 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-12-07 13:12:47,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,958 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,958 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,958 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((forall ULTIMATE.start___ieee754_log10_~lx~1 : bv32 :: !(0bv32 == ~bvor32(~bvand32(2147483647bv32, hx), ULTIMATE.start___ieee754_log10_~lx~1))) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant [2019-12-07 13:12:47,959 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-12-07 13:12:47,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,960 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-12-07 13:12:47,960 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,961 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,961 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((forall ULTIMATE.start___ieee754_log10_~lx~1 : bv32 :: !(0bv32 == ~bvor32(~bvand32(2147483647bv32, hx), ULTIMATE.start___ieee754_log10_~lx~1))) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant [2019-12-07 13:12:47,962 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,962 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 13:12:47,962 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:12:47,962 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:12:47,963 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 13:12:47,963 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 59.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 48.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 176 SDtfs, 177 SDslu, 358 SDs, 0 SdLazy, 131 SolverSat, 22 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 44.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 116 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 83 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 104 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 142 ConstructedInterpolants, 23 QuantifiedInterpolants, 10646 SizeOfPredicates, 31 NumberOfNonLiveVariables, 327 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...